12V 1/2W Zener Diode – 1% Tolerance

Reliable 12 Volt Voltage Regulation with Precision Zener Diode

This 12V Zener diode (NTE5021T1) is specifically engineered for tight voltage reference and regulation tasks in electronic circuits. With a nominal regulating voltage of 12.0 volts and a power dissipation rating of 1/2 watt (500mW), it offers consistent performance for power supplies, voltage clamping, and overvoltage protection designs. Its 1% voltage tolerance ensures reliable operation in applications where precision is critical.

Key Features and Technical Specifications

• Nominal Zener Voltage: 12.0V
• Power Dissipation: 500mW (1/2 watt)
• Voltage Tolerance: ±1%
• Package Type: DO-35 (Axial leaded, through hole)
• Configuration: Single Zener diode per package

Applications

Ideal for use as a voltage reference, voltage regulator, or transient suppressor in precision analog circuitry, communications equipment, automation controls, and other demanding electronic designs requiring stable 12V regulation.

Usage Instructions

Install in the correct polarity according to your circuit schematic. For optimal performance and long-term reliability, ensure that the device operates within its maximum power rating and ambient temperature constraints.

NTE5021T1 provides robust, dependable performance in both prototype builds and production assemblies.

This part is the equivalent replacement for the following:

0403000654, 04AZ12X, 04AZ12-Y, 04AZ12Y, 05Z12X, 11115386T, 12A1, 12A1(ZENER), 12A2, 12A2(ZENER), 12A3, 12A3(ZENER), 12X(ZENER), 1/4M12Z1, 1/4M12Z2, 159963, 186646, 189334, 191413, 1N1933B, 1N1960B, 1N6002C, 1N6002D, 202-5-3210-12010, 2169-205-1103, 2169-401-1206, 23316719, 23316720, 23316746, 2331841, 2331842, 2331844, 2331849, 2332771, 2337562, 2339142, 302-3(MAG-ZENER), 323-6824, 407-054-3207, 4070543207, 4070635408, 4070638404, 407-063-8408, 4070638408, 407-099-6607, 4070996607, 46-861333-3, 46-862456-3, 4822-130-30145, 482213030145, 4822-130-30346, 482213030346, 4822-130-30353, 482213030353, 4822-130-30802, 482213030802, 4822-130-31056, 482213031056, 4822-130-34197, 482213034197, 4835-130-37001, 483513037001, 4835-130-37193, 483513037193, 4835-130-37347, 483513037347, 4H13034197, .4M12AZ1, .4M12AZ2, 5302390066, 5303020003, 530302-3, 5322-130-30145, 532213030145, 5322-130-30302, 532213030302, 5322-130-30346, 532213030346, 5322-130-34069, 532213034069, 5322-130-34197, 532213034197, .5M12AZ1, .5M12AZ2, 6040120025, 8409-12317, 8-719-110-35, 9330-089-70112, 933008970112, 9330-092-10112, 933009210112, 9330-093-60112, 933009360112, 9330-220-60112, 933022060112, 9331-178-10112, 933117810112, 9331-668-90112, 933166890112, 9331-668-90113, 933166890113, 9331-669-90113, 933166990113, 9332-596-10112, 933259610112, 93T4125005150, A7110410, A7117205, A7117215, AD300070, BZX79A12, BZX79B12, BZX79F12, D92T0120B2, D93T01200Y, D94TA120B2, D94TA120J2, D94TA120J3, D97U01101B, D97U012008, D97U01200B, D97U01201B, D97V01200B, E1828ZA, E1828ZB, ECG5021T1, EQA01-12R, EQA02-12R, ESA01-15, EW16X0405, EW16X249, EX0047CE, GZA12L, GZA12U, GZA12Y, GZA12-Y-BT, GZS12, GZS12Z, HE-12A, HSZ12EB3, HZ-121, HZ121, HZ12A1, HZ12A-1L, HZ12A-2, HZ12A2, HZ12A3, HZ-12B1, HZ12(B)1 (Lead configuration may vary from the original device. Consult technical section for device outline.), HZ12B1, HZ12B14, HZ-12(C2), HZ12(C2), HZ-12(C3), HZ12(C3), HZ12C3, HZ12C-3L, HZ12E, HZ12EB3, HZ12H1, HZ12HA2, HZS12A, HZS12A2L, HZS12B2L, HZS12E, HZS12EB2, HZS12EB2-T, HZS12EB3, HZS12JB2, HZS12JB2-TE, HZS12JB3, HZS12JB3-T, HZS12L, HZS12L(B2), HZS12N, HZS12NB3, HZS12S, HZS12SB2, MA1120, MA-4062, MA-4062(L), MA-4062L, MA4062(L), MA4062(M), MA-4062(M)-Y, MA-4062M-Y, MA4062(M)-Y, MA4062M-Y, MA-4062-Y, MA4062-Y, MA4120, MA4120M, MA4120MTA, MA4130(H), MA4130(H)-T2, MTZ128, MTZ12B, MTZ12BT-77, MTZ12C, MTZ13B, MTZ27B, MTZJ11BT-77, MTZJ12, MTZJ12BT-77, MTZJ12BT77, MTZJ12C, MTZJT-7712C, MZ312G, NTE5021T1, O5Z12Y, QA211CD, RD12EB, RD12EB2, RD12EB-2-TA11R, RD12EB2TA11R, RD12ESAB1, RD12JSB2, RD13ES-B1, RH-EX0002AEZZ, RH-EX002AEZZ, RH-EX0047CEZZ, RHEX0047CEZZ, RH-EX0163GEZZ, SK9971, SK9971/5021T1, SZ-HZ12A2, UTZJ12, UTZJ12B, VHEHZS12BL1-1, Z0A12, Z5A12