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1N5378B
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Product Detailed Parameters
- Description：DIODE ZENER 100V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：100 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：90 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 72 V
- Operating Temperature：-65°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
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Overview
The Microsemi Corporation 1N5378B is a silicon Zener diode rated for 5 watts of maximum power dissipation. It provides a nominal Zener voltage of 100 V with a tolerance of ±5%. The device operates within a junction temperature range of -65°C to +150°C and features a maximum dynamic impedance of 90 Ohms. Reverse leakage current is specified at 500 nA when tested at 76 V, while the forward voltage drop is 1.2 V at 1 A.
Feature Summary
- Utilizes silicon-oxide passivated junctions for superior operating characteristics and environmental protection.
- Offers tight voltage limits and guaranteed electrical parameters across multiple specifications.
- Provides high surge rating capability up to 180 W during 8.3 ms pulses.
Applications
- Voltage regulation in circuits requiring stable reference levels.
- Overvoltage protection for sensitive electronic components.
- Clamping applications in industrial equipment power inputs.
Procurement Notes
Verify that the specific order matches the Microsemi Corporation manufacturer designation. Confirm the package type corresponds to the Surmetic 40 axial lead configuration. Ensure compliance requirements align with the RoHS status of the specific batch. Cross-reference the suffix 'B' to confirm the ±5% voltage tolerance specification.
Selection Notes
Select this component when a 100 V regulation point is required with 5 W power handling. The axial lead format suits through-hole mounting strategies. Consider the thermal resistance limitations for continuous operation without adequate heat sinking. Compare against other manufacturers if surface mount alternatives are preferred.
Part Context
This part belongs to the JEDEC registered 1N5333 through 1N5388 series of 5-watt Zener diodes. The series covers a wide voltage range from 3.3 V to 200 V. The 'B' suffix specifically denotes the ±5% tolerance variant within this family.
Replacement Considerations
The onsemi 1N5378BRLG is documented as a similar replacement option with identical electrical characteristics.
FAQ
What is the ESD rating for the 1N5378B?
The device has an ESD rating of Class 3, which exceeds 16 kV per the Human Body Model.
Does the 1N5378B require dry packing?
No, the plastic encapsulated design has a moisture classification of Level 1, so no dry pack is required.
