1N5370B-TP

Overview

The MCC 1N5370B-TP is a 56 V, 5 W single Zener diode in the DO-15 axial package. It features a ±5% voltage tolerance and operates within a junction temperature range of -55°C to +200°C. Key electrical parameters include a maximum dynamic impedance of 35 Ω at a test current of 20 mA, a maximum reverse leakage current of 0.5 µA at 42.6 V, and a maximum forward voltage of 1.2 V at 1 A.

Feature Summary

• Provides stable voltage regulation with a nominal breakdown voltage of 56 V.
• Supports high power dissipation up to 5 W for robust circuit protection.
• Features low thermal resistance from junction to lead for efficient heat transfer.
• Constructed with epoxy that meets UL 94 V-0 flammability ratings.

Applications

• Voltage reference circuits requiring precise 56 V regulation.
• Overvoltage protection stages in power supply systems.
• Clamping applications for transient voltage suppression.

Procurement Notes

Verify the specific ordering suffix when purchasing. The standard TP designation indicates RoHS compliance. An additional HF suffix is required if halogen-free material specifications are mandatory for the assembly process. Confirm the package type matches the PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component for designs requiring a 56 V breakdown voltage with a 5 W power rating. Ensure the operating environment stays within the specified thermal limits. Consider the 35 Ω dynamic impedance for noise-sensitive applications. Verify that the axial DO-15 package fits the mechanical constraints of the target enclosure or board layout.

Part Context

This device belongs to the 1N5338B through 1N5388B series manufactured by Micro Commercial Components. The series covers a wide voltage range from 5.1 V to 200 V using the same DO-15 axial leaded package. All parts in this family share identical physical dimensions and general thermal characteristics while differing in their specific Zener voltage ratings.

Replacement Considerations

Cross-reference with other manufacturers offering 1N5370B equivalents in the DO-15 package. Verify that substitute components match the 56 V nominal voltage, 5 W power dissipation, and 35 Ω maximum dynamic impedance specifications to ensure functional compatibility.