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1N5388B
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Product Detailed Parameters
- Description：DIODE ZENER 200V 5W T18
- Series：-
- Mfr：Microsemi Corporation
- Package：Tape & Reel (TR)
- Voltage - Zener (Nom) (Vz)：200 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：480 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 144 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 1N5388B is a JEDEC registered silicon 5.0-watt Zener diode housed in an axial-lead T-18 package. It provides voltage regulation at a nominal Zener voltage of 200 volts with a ±5% tolerance. The device operates within a temperature range of -65°C to +150°C and features a maximum dynamic impedance of 480 ohms. Electrical characteristics include a test current of 5.0 mA, a maximum reverse current of 0.5 µA, and a maximum regulator current of 23.6 mA.
Feature Summary
- Provides stable voltage regulation across a broad operating current and temperature range
- Withstands high surge stresses and offers minimal changes of voltage versus current
- Features flexible axial-lead mounting terminals for versatile installation
- Nonsensitive to electrostatic discharge per MIL-STD-750 Method 1020
Applications
- Voltage regulation circuits requiring high power dissipation
- Overvoltage protection for industrial equipment
- Military and aerospace applications utilizing screened equivalents
Procurement Notes
Verify the specific suffix letter on the part number to confirm the exact voltage tolerance required for the application. Confirm whether RoHS compliance is necessary by checking for the e3 suffix. Ensure adequate heat sinking is provided during operation to maintain performance within the specified thermal resistance limits.
Selection Notes
Select this component when a 200-volt regulation point is needed with a 5-watt power rating. Consider the B suffix for standard ±5% tolerance or explore C/D suffixes for tighter tolerances if precision is critical. Verify that the system can accommodate the required lead length for optimal thermal dissipation.
Part Context
This component belongs to the 1N5333B through 1N5388B series of silicon 5-watt Zener diodes manufactured by Microsemi. The series covers a wide selection of voltages from 3.3V to 200V. These plastic encapsulated devices utilize void-free transfer molded epoxy bodies meeting UL94V-0 standards.
Replacement Considerations
Surface mount equivalents are available as SMBJ5388B or SMBG5388B. For military screening requirements, consider JAN, JANTX, or JANTXV prefixes added to the base part number.
