NPN Silicon AF Amplifier Transistor

Easy-to-Use Audio Frequency Amplifier Transistor

The NTE373 is a reliable NPN silicon transistor designed for everyday audio amplifier and driver applications. Perfect for DIY electronics or simple home audio repairs, this audio frequency (AF) amplifier transistor delivers stable performance and is easy to integrate into your circuit projects.

Key Features & Benefits

• Versatile Use: Ideal for audio amplifier stages and driver circuits.
• Clean Amplification: Ensures clear, low-noise audio performance for quality sound output.
• Single Package: Each purchase includes one transistor for straightforward replacement or new builds.

Technical Specifications

• Transistor Type: NPN
• Application: Silicon Audio Frequency (AF) Driver/Amplifier
• Package Type: TO-126

How to Use

The NTE373 AF amplifier transistor is easy to install into your audio circuit. Simply place it in compatible driver or amplifier stages according to your schematic. Perfect for hobbyists and everyday electronics enthusiasts looking for a straightforward, effective solution to audio amplification or driver needs.

NTE Part Number: NTE373

This part is the equivalent replacement for the following:

020-1111-048(SCOTT), 02ST-2SD1178C, 0301201150, 07-28777-87, 07-28778-79, 1181-3466, 1207-6782, 13-31013-27, 1417414-001, 144045 (Must use the insulating hardware supplied.), 146596, 147246, 147974, 150007, 150770 (Must use the insulating hardware supplied.), 1567(SCOTT), 158456, 16304190439, 182350, 182352, 1854-0805, 1854-1115, 1854-1187, 1C12129, 2003248119, 2003248126, 2003248164, 2003248175, 2003340271, 2003340283, 203-5-7512-44150, 2149-401-9808, 21A118-313, 21A118313, 2200782, 2200783, 2210863, 2210864, 22ST-2SD1177C, 2320845, 2324171, 2326214, 2326216, 2326218, 2328465, 25ST-2SD781, 260P41802, 2S0781, 2SC1162, 2SC1162W, 2SC1212, 2SC1212A, 2SC1212AA, 2SC1212AB, 2SC1212ABWT, 2SC1212AC, 2SC1212ACWT, 2SC1212AD, 2SC1212AWT, 2SC1212AWTA, 2SC1212AWTB, 2SC1212AWTC, 2SC1212AWTD, 2SC1212B, 2SC1212C, 2SC1212D, 2SC1212WT, 2SC1212WTA, 2SC1212WTB, 2SC1212WTC, 2SC1212WTD, 2SC1382, 2SC1382-0, 2SC1382-O, 2SC1382Y, 2SC1399, 2SC1399E, 2SC1565, 2SC1565P, 2SC1565Q, 2SC1565R, 2SC1567, 2SC1567A, 2SC1567AP, 2SC1567AQ, 2SC1567AR, 2SC1567AS, 2SC1567P, 2SC1567Q, 2SC1567R, 2SC1567S, 2SC1568P (Must use the insulating hardware supplied.), 2SC1568Q (Must use the insulating hardware supplied.), 2SC1846-Q (Must use the insulating hardware supplied.), 2SC1846-Y (Must use the insulating hardware supplied.), 2SC1847, 2SC1847-0, 2SC1847A, 2SC1847B, 2SC1847C, 2SC1847D, 2SC1847E, 2SC1847F, 2SC1847G, 2SC1847GN, 2SC1847LG, 2SC1847-O, 2SC1847P, 2SC1847(Q), 2SC1847Q, 2SC1847QBF, 2SC1847QR, 2SC1847(R), 2SC1847R, 2SC1847V, 2SC1847VQ, 2SC1847VR, 2SC1847X, 2SC1847Y, 2SC1903, 2SC1904, 2SC1953, 2SC1953P, 2SC1953Q, 2SC1953R, 2SC1953S, 2SC2028/1, 2SC2028-2, 2SC2028/2, 2SC2028A, 2SC2028A/20, 2SC2028B, 2SC2028-B/20, 2SC2028B/20, 2SC2028-B/B/20, 2SC2113 (Must use the insulating hardware supplied.), 2SC2209, 2SC2441, 2SC2441D, 2SC2441E, 2SC2441F, 2SC2481, 2SC2481-0, 2SC24810, 2SC2481-0LBGL1, 2SC2481-O, 2SC2481O, 2SC2481-OLBGL1, 2SC2481-R, 2SC2481R, 2SC2481RLBGL1, 2SC2481-Y, 2SC2481Y, 2SC2497, 2SC2497A (Must use the insulating hardware supplied.), 2SC2497AP (Must use the insulating hardware supplied.), 2SC2497AQ (Must use the insulating hardware supplied.), 2SC2497AR (Must use the insulating hardware supplied.), 2SC2497P (Must use the insulating hardware supplied.), 2SC2497R, 2SC2556, 2SC2556A, 2SC2582, 2SC2582Q (Must use the insulating hardware supplied.), 2SC2582R (Must use the insulating hardware supplied.), 2SC2590, 2SC2590-P (Must use the insulating hardware supplied.), 2SC2590P (Must use the insulating hardware supplied.), 2SC2590-Q (Must use the insulating hardware supplied.), 2SC2590Q (Must use the insulating hardware supplied.), 2SC2590-R (Must use the insulating hardware supplied.), 2SC2590R (Must use the insulating hardware supplied.), 2SC2590-S (Must use the insulating hardware supplied.), 2SC2590S (Must use the insulating hardware supplied.), 2SC2682, 2SC2682E, 2SC2682P, 2SC2682Q, 2SC2690, 2SC2690A, 2SC2690AP, 2SC2690A-Q, 2SC2690AQ, 2SC2690AR, 2SC2690P, 2SC2690Q, 2SC2690R, 2SC2704, 2SC2704-O, 2SC2794, 2SC2803, 2SC2824, 2SC2824-O, 2SC2911, 2SC2911(AUDIO) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 2SC2911R(AUDIO) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 2SC2911S, 2SC2911S(AUDIO) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 2SC2958M, 2SC2959 (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 2SC3116, 2SC3116(AUDIO), 2SC3116-R, 2SC3116R(AUDIO), 2SC3116-S, 2SC3116S, 2SC3116S(AUDIO), 2SC3116ST, 2SC3116-T, 2SC3116T, 2SC3116T(AUDIO), 2SC3117, 2SC3117(AUDIO), 2SC3117-R, 2SC3117R, 2SC3117R(AUDIO), 2SC3117-S, 2SC3117S, 2SC3117S(AUDIO), 2SC3117-T, 2SC3117T(AUDIO), 2SC3419 (Must use the insulating hardware supplied.), 2SC3419O (Must use the insulating hardware supplied.), 2SC3419Y (Must use the insulating hardware supplied.), 2SC3421, 2SC3421O (Must use the insulating hardware supplied.), 2SC3423 (Must use the insulating hardware supplied.), 2SC3423-O (Must use the insulating hardware supplied.), 2SC3423Y (Must use the insulating hardware supplied.), 2SC3621, 2SC3621-0, 2SC3621(0), 2SC36210 (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 2SC3621-0(LB-SAN-2), 2SC36210(LBSAN2), 2SC3621-0(SAN-1), 2SC3621-O, 2SC3621-O(LB) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 2SC3621-O(LB-SAN-2), 2SC3621-OLB-SAN-2, 2SC3621-R, 2SC3621(R), 2SC3621R, 2SC3621-R(LB) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 2SC3621-R(LB-SAN-2), 2SC3621R(LBSAN2), 2SC3621-R(SAN-1), 2SC3621Y, 2SC3621Y(0), 2SC3621Y(R), 2SC3902-R-RA, 2SC3902-S-CTV-YA (Lead configuration may vary from the original device. Consult technical section for device outline.), 2SC3902S-CTV-YA, 2SC3902SCTVYA, 2SC3902(S,T), 2SC3902-T-CTV-YA (Lead configuration may vary from the original device. Consult technical section for device outline.), 2SC3902T-CTV-YA, 2SC3902TCTVYA, 2SC5958, 2SC669, 2SC669AB, 2SC669C, 2SC669D, 2SD1177C, 2SD1378, 2SD1378P, 2SD1378Q, 2SD1381 (Must use the insulating hardware supplied.), 2SD1381P (Must use the insulating hardware supplied.), 2SD1381Q (Must use the insulating hardware supplied.), 2SD1382, 2SD1382P, 2SD1382Q, 2SD1563, 2SD1563A, 2SD1609, 2SD1681 (Must use the insulating hardware supplied.), 2SD1681Q (Must use the insulating hardware supplied.), 2SD1681R (Must use the insulating hardware supplied.), 2SD1684 (Must use the insulating hardware supplied.), 2SD1684R (Must use the insulating hardware supplied.), 2SD1684S (Must use the insulating hardware supplied.), 2SD2343, 2SD414, 2SD414-Q, 2SD414Q, 2SD414-R, 2SD414R, 2SD414-S, 2SD414S, 2SD415, 2SD415P, 2SD415-Q, 2SD415Q, 2SD415-R, 2SD415R, 2SD415-S, 2SD415S, 2SD415Y, 2SD439, 2SD439D, 2SD439E, 2SD439F, 2SD600, 2SD600D, 2SD600E, 2SD600K, 2SD600KD, 2SD600KE, 2SD668, 2SD668A, 2SD668AB, 2SD668AC, 2SD668B, 2SD668C, 2SD668D, 2SD669, 2SD669A, 2SD669AB, 2SD669AC, 2SD669AD, 2SD669B, 2SD669C, 2SD669D, 2SD781, 2SD793Q, 2SD809, 2SD975, 2SD975C, 301201150 (Must use the insulating hardware supplied.), 30201221, 30300311, 30300313, 305-003046, 31-073-0, 344-1(SYL), 35960918, 405-114-7103, 4051147103, 405-114-7301, 4051147301, 406-000-2806, 406-000-2905, 4060002905, 406-000-3001, 406-000-3100, 4060003100, 410023117R, 410023117S, 46-861011-3, 46-861606-1 (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), 46-861606-3, 46-862530-3, 46-86909-3, 4822-130-40645, 482213040645, 4822-130-40664, 482213040664, 4822-130-40823, 482213040823, 4822-130-41049, 482213041049, 4822-130-41141, 482213041141, 4822-130-41303, 482213041303, 4822-130-60117 (Must use the insulating hardware supplied.), 482213060117 (Must use the insulating hardware supplied.), 4822-130-62621, 482213062621, 4835-130-47376, 483513047376, 48-44892P01, 48-90229A84, 48-90432A02, 4890432A02, 48-90445A54, 4890478A51, 48X90229A84, 48X90343A85, 48X90478A51, 4H1304-1084, 4H1304-1084(CBE), 4H13041084(CBE), 513104S, 513112S, 5322-130-40645, 532213040645, 5322-130-40664, 532213040664, 5322-130-40823, 532213040823, 5322-130-44413, 532213044413, 5613-1846(Q), 5614-415R, 571-1(NAP), 571-2(NAP), 571-3(NAP), 6018(PEAVEY), 610571, 6105710001, 6105710002, 6105710003, 610571-1, 610571-2, 610571-3, 656-1(RCA), 656-2(RCA), 656-4(RCA), 7414-1(RCA), 77ST-2SD669AC, 810011, 8-729-141-43, 8-729-169-01, 8-729-169-02, 8-729-180-03, 8-729-180-93, 8-729-306-92, 8-729-307-82, 8-729-366-81, 8-729-984-70, 8-729-990-43, 89-315-675-01, 89-315-676-01, 89-318-464-01, 89-406-692-01, 89-406-692-31, 9330-911-60112, 933091160112, 9330-911-90112, 933091190112, 9330-912-20112, 933091220112, 9331-884-80112, 933188480112, 9332-696-70127, 933269670127, 935-6150, A949-Y, A949(Y)C1-T (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), B1212 (Must use the insulating hardware supplied.), B1212A (Must use the insulating hardware supplied.), B1212AA (Must use the insulating hardware supplied.), B1212AB (Must use the insulating hardware supplied.), B1212ABWT (Must use the insulating hardware supplied.), B1212AC (Must use the insulating hardware supplied.), B1212ACWT (Must use the insulating hardware supplied.), B1212AD (Must use the insulating hardware supplied.), B1212AWT (Must use the insulating hardware supplied.), B1212AWTA (Must use the insulating hardware supplied.), B1212AWTB (Must use the insulating hardware supplied.), B1212AWTC (Must use the insulating hardware supplied.), B1212AWTD (Must use the insulating hardware supplied.), B1212B (Must use the insulating hardware supplied.), B1212C (Must use the insulating hardware supplied.), B1212D (Must use the insulating hardware supplied.), BD135-1, BD135-16, BD135/16, BD13516, BD226, BD228, BD230, C1162C, C1212ABWT, C1212ACWT, C1382, C1382-0, C1382-O, C1565, C1565P, C1565Q, C1565R, C1567 (Must use the insulating hardware supplied.), C1567A (Must use the insulating hardware supplied.), C1567AP (Must use the insulating hardware supplied.), C1567AQ (Must use the insulating hardware supplied.), C1567AR (Must use the insulating hardware supplied.), C1567P (Must use the insulating hardware supplied.), C1567Q (Must use the insulating hardware supplied.), C1567R (Must use the insulating hardware supplied.), C1568 (Must use the insulating hardware supplied.), C1568P (Must use the insulating hardware supplied.), C1568Q (Must use the insulating hardware supplied.), C1568R (Must use the insulating hardware supplied.), C1846 (Must use the insulating hardware supplied.), C1846B (Must use the insulating hardware supplied.), C1846P (Must use the insulating hardware supplied.), C1846-Q (Must use the insulating hardware supplied.), C1846Q (Must use the insulating hardware supplied.), C1846R (Must use the insulating hardware supplied.), C1846RSLB(TRANS) (Must use the insulating hardware supplied.), C1846RSRL(TRANS) (Must use the insulating hardware supplied.), C1846RS(TRANS) (Must use the insulating hardware supplied.), C1846-Y (Must use the insulating hardware supplied.), C1847 (Must use the insulating hardware supplied.), C1847-0 (Must use the insulating hardware supplied.), C1847Q (Must use the insulating hardware supplied.), C1847QBF, C1847QR (Must use the insulating hardware supplied.), C1847R (Must use the insulating hardware supplied.), C1847V (Must use the insulating hardware supplied.), C1847VQ (Must use the insulating hardware supplied.), C1847VR (Must use the insulating hardware supplied.), C1903, C1904, C1953 (Must use the insulating hardware supplied.), C1953P (Must use the insulating hardware supplied.), C1953Q (Must use the insulating hardware supplied.), C1953R (Must use the insulating hardware supplied.), C2028, C2028/1, C2028-2, C2028/2, C2028A, C2028A/20, C2028-B/20, C2028-B/B/20, C2113 (Must use the insulating hardware supplied.), C2209, C2441, C2441D, C2441E, C2441F, C2481, C2481-0, C2481O, C2481-R, C2481-Y, C2497AP(TRANS) (Must use the insulating hardware supplied.), C2497AQ(TRANS) (Must use the insulating hardware supplied.), C2497AR(TRANS) (Must use the insulating hardware supplied.), C2497A(TRANS) (Must use the insulating hardware supplied.), C2497P(TRANS) (Must use the insulating hardware supplied.), C2497Q(TRANS) (Must use the insulating hardware supplied.), C2497R(TRANS) (Must use the insulating hardware supplied.), C2497(TRANS) (Must use the insulating hardware supplied.), C2556 (Must use the insulating hardware supplied.), C2556A (Must use the insulating hardware supplied.), C2582Q(TRANS) (Must use the insulating hardware supplied.), C2582R(TRANS) (Must use the insulating hardware supplied.), C2582(TRANS), C2590 (Must use the insulating hardware supplied.), C2590-P (Must use the insulating hardware supplied.), C2590P (Must use the insulating hardware supplied.), C2590P(TRANS) (Must use the insulating hardware supplied.), C2590-Q (Must use the insulating hardware supplied.), C2590Q (Must use the insulating hardware supplied.), C2590Q(TRANS) (Must use the insulating hardware supplied.), C2590-R (Must use the insulating hardware supplied.), C2590R (Must use the insulating hardware supplied.), C2590R(TRANS) (Must use the insulating hardware supplied.), C2590-S (Must use the insulating hardware supplied.), C2590S (Must use the insulating hardware supplied.), C2682, C2682E, C2682P, C2682Q, C2682Q(TRANS), C2682(TRANS), C2690AP(TRANS), C2690AQ(TRANS), C2690AR(TRANS), C2690P(TRANS), C2690Q(TRANS), C2690R(TRANS), C2690(TRANS), C2704, C2704-O, C2803(TRANS), C2824-O, C2824(TRANS), C2911(AUDIO) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C2911R(AUDIO) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C2911S(AUDIO) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C2958(TRANS) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C2959(TRANS) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C3116(AUDIO), C3116R(AUDIO), C3116S(AUDIO), C3116ST, C3116T, C3116T(AUDIO), C3117(AUDIO), C3117R(AUDIO), C3117S(AUDIO), C3117T(AUDIO), C3419 (Must use the insulating hardware supplied.), C34190(TRANS) (Must use the insulating hardware supplied.), C3419Y(TRANS) (Must use the insulating hardware supplied.), C3421, C34210(TRANS) (Must use the insulating hardware supplied.), C3423-O(TRANS) (Must use the insulating hardware supplied.), C3423(TRANS) (Must use the insulating hardware supplied.), C3423Y(TRANS) (Must use the insulating hardware supplied.), C3621, C36210 (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C36210(LBSAN2), C3621-O(TRANS) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C3621R (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C3621R(LBSAN2), C3621-R(TRANS) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C3621(TRANS) (May not be an exact mechanical or electrical equivalent. However, it will provide an acceptable substitute in the majority of typical applications.), C3787(TRANS) (Must use the insulating hardware supplied.), C3902SCTVYA, C3902(S,T), C3902S(TRANS), C3902-T-CTV-YA, C3902TCTVYA, C3902(TRANS), C5958, D1177C, D1378, D1378P, D1378Q, D1381P (Must use the insulating hardware supplied.), D1381Q (Must use the insulating hardware supplied.), D1381(TRANS) (Must use the insulating hardware supplied.), D1382P, D1382Q, D1382(TRANS), D1563A(TRANS), D1563(TRANS), D1609(TRANS), D1681Q(TRANS) (Must use the insulating hardware supplied.), D1681R(TRANS) (Must use the insulating hardware supplied.), D1681(TRANS) (Must use the insulating hardware supplied.), D1684R(TRANS) (Must use the insulating hardware supplied.), D1684S(TRANS) (Must use the insulating hardware supplied.), D1684(TRANS) (Must use the insulating hardware supplied.), D2343, D414, D414-Q, D414Q, D414R, D414S, D415, D415P, D415-Q, D415Q, D415R, D415S, D415Y, D439, D439D, D439E, D439F, D600, D600D, D600E, D600K, D600KD, D600KE, D668, D668A, D668AB, D668AC, D668AD, D668B, D668C, D668D, D669, D669A, D669AB, D669AC, D669AD, D669B, D669C, D669D, D781, D793Q, D809, D975C, D975(TRANS), DDBY256002, DEW15X203 (Must use the insulating hardware supplied.), EA15X455, ECG373, EW15X116 (Must use the insulating hardware supplied.), EW15X196, EW15X238, EW15X282 (Must use the insulating hardware supplied.), EW15X31, EW15X453 (Must use the insulating hardware supplied.), EW15X491 (Must use the insulating hardware supplied.), EW15X553 (Must use the insulating hardware supplied.), EW15X71, HT404152B0, IC121290, IC195340, IC195350, ID066800, ID066900, IX800800, KSC2682, KSC2682-O, KSC2682-Y, KSC2690, KSC2690A, KSC2690A-O, KSC2690A-R, KSC2690A-Y, KSC2690-O, KSC2690R, KSC2690Y, NTE373, Q6649, Q66492, Q6649Z, QT0191, QT-C1847XAN (Must use the insulating hardware supplied.), SK9041, SK9041/373, ST-2SD1177C, ST-2SD1178C, ST-2SD669AC, TM373, VS2S669D//1E, VS2SC1212AC1A, VS2SC1794LB1E, VS2SC2481-0, VS2SC24810/1E, VS2SC2481O/1E, VS2SC2481-Y, VS2SC2481Y, VS2SC2481Y//1E, VS2SC2481Y/1E, VS2SC2482, VS2SC2794LB1E, VS2SC669C//1E, VS2SC669D/1E, VS2SC794LB1E, VS2SC975///-1, VS2SD669-C, VS2SD669C, VS2SD669-C/1E, VS2SD669C//1E, VS2SD669C///E, VS2SD669-D, VS2SD669D, VS2SD669-D/1E, VS2SD669D//1E, VS2SD669D///E, VS2SD699C, VS2SD699-C/1E, VS2SD975///-1, X302116292