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Product Detailed Parameters
- Description：DIODE ZENER 20V 5W AXIAL
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Zener (Nom) (Vz)：20 V
- Tolerance：±5%
- Power - Max：5 W
- Impedance (Max) (Zzt)：3 Ohms
- Current - Reverse Leakage @ Vr：500 nA @ 15.2 V
- Operating Temperature：-65°C ~ 200°C
- Mounting Type：Through Hole
- Package / Case：T-18, Axial
- Voltage - Forward (Vf) (Max) @ If：1.2 V @ 1 A
- Grade：-
- Qualification：-
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Overview
The onsemi 1N5357BRL is a single-channel Zener voltage regulator diode from the 1N53 Series, housed in an axial lead DO-15 (Surmetic 40) package. It features a nominal Zener voltage of 20 V with a ±5% tolerance and a maximum steady-state power dissipation of 5 W at 25°C. The device operates within a junction temperature range of -65°C to +200°C. Key electrical parameters include a test current (IZT) of 65 mA, a maximum Zener impedance (ZZT) of 3 Ω, and a maximum reverse leakage current of 500 nA.
Feature Summary
- Utilizes silicon-oxide passivated junctions for superior operating characteristics and environmental protection.
- Provides tight limits on up to six electrical parameters to ensure consistent performance.
- Features an ESD rating of Class 3 (>16 kV) per the Human Body Model.
- Capable of handling surge currents up to 180 W for 8.3 ms pulses.
Applications
- Voltage regulation in general-purpose electronic circuits
- Overvoltage protection for sensitive components
- Reference voltage sources in power supplies
Procurement Notes
Verify that the ordering suffix 'RL' corresponds to the tape and reel packaging format specified in the datasheet. Confirm the presence of the 'G' suffix if lead-free compliance is required. Ensure the component matches the Surmetic 40 case outline dimensions before integration into the assembly process.
Selection Notes
Select this component when a 20 V reference with 5% tolerance is needed in a high-power axial package. Consider the thermal resistance and derating requirements above 25°C. Evaluate the surge capability against potential transient events in the target circuit environment.
Part Context
This part belongs to the 1N53 Series of 5 Watt Zener diodes manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 200 V. The 1N5357B specifically denotes the 20 V variant within this family, utilizing the standard B-suffix for ±5% tolerance.
Replacement Considerations
Compatible substitutes include other manufacturers' 1N5357B devices or equivalent 5W Zener diodes with matching 20V nominal voltage and DO-15 package dimensions. Verify electrical parameters such as impedance and leakage current match the original specifications.
