1N5370BRL

Overview

The onsemi 1N5370BRL is a silicon unidirectional voltage regulator diode belonging to the 1N53 Series. It features a nominal Zener voltage of 56 V with a tolerance of ±5%. The device operates in an axial lead, transfer-molded plastic package (CASE 017AA) and provides a maximum steady-state power dissipation of 5 W at a lead temperature of 25°C. It utilizes silicon-oxide passivated junctions for improved operating characteristics and offers protection against common environmental conditions.

Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics
• Provides surge rating of up to 180 W at 8.3 ms pulse width
• Features ESD rating of Class 3 (>16 kV) per Human Body Model
• Guarantees maximum limits on up to six electrical parameters

Applications

• Voltage regulation over broad operating current and temperature ranges
• Protection circuits requiring high surge current handling capabilities
• General purpose applications utilizing axial lead mounting

Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration. The 'RL' suffix indicates availability in tape and reel format containing 4000 units. Confirm RoHS compliance status by checking for the 'G' suffix designation if lead-free requirements are mandatory for the assembly process.

Selection Notes

Select this component when a precise 56 V reference is required within a 5 W power envelope. Ensure adequate heat sinking is provided to maintain lead temperatures below 25°C for full power derating. Verify that the circuit design accommodates the specified maximum non-repetitive surge current limits during transient events.

Part Context

This part belongs to the 1N53 Series of 5 Watt Surmetic 40 Zener Voltage Regulators manufactured by onsemi. The series covers a wide Zener voltage range from 3.3 V to 200 V. All devices share the same axial lead plastic package construction designed for robustness in various environmental conditions while maintaining tight electrical tolerances.

Replacement Considerations

Cross-reference with other manufacturers offering the standard JEDEC 1N5370B specification. Verify mechanical dimensions match CASE 017AA and confirm thermal resistance characteristics align with existing board layout constraints.