1N5378B-TP Equivalent & Substitute Parts

Part Overview

The 1N5378B-TP is a Zener diode rated for 100 V nominal voltage and 5 W maximum power dissipation, manufactured by Micro Commercial Co. This component is designed for voltage regulation and protection applications in electronic circuits. The part is currently Active in product status with 911 pieces in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs, reducing supply chain dependencies and enabling design flexibility.

Substiute Parts

1N5378B-TP

Micro Commercial CoIn Stock: 9401N5378B-TP Datasheet

Current PartRFQ

1N5378BRLG

onsemiIn Stock: 36931N5378BRLG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1N5378B-TP are identified based on matching electrical performance specifications and compatible mechanical form factors. The critical parameters that determine substitution eligibility are:

• Voltage - Zener (Nom): 100 V
• Tolerance: ±5%
• Power - Max: 5 W
• Impedance (Max): 90 Ohms
• Current - Reverse Leakage @ Vr: 500 nA @ 76 V
• Voltage - Forward (Vf) (Max) @ If: 1.2 V @ 1 A
• Mounting Type: Through Hole
• Package / Case: Axial configuration

The 1N5378BRLG manufactured by onsemi meets all electrical specifications and maintains Through Hole Axial mounting compatibility, qualifying it as a direct substitute. Packaging format differences (Bulk versus Cut Tape) do not affect electrical or mechanical compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 1N5378B-TP and 1N5378BRLG are Active products with identical electrical specifications across all critical parameters. The 1N5378BRLG offers an extended operating temperature range (-65°C to 200°C versus -55°C to 150°C), providing additional thermal margin for applications requiring operation at temperature extremes.

The 1N5378B-TP carries REACH Unaffected status. The 1N5378BRLG is ROHS3 Compliant and REACH Unaffected, meeting additional regulatory compliance requirements for certain applications and markets.

Both parts share the same ECCN (EAR99) and HTSUS (8541.10.0050) classifications. Selection between these parts should be based on supply availability, packaging format requirements (Bulk versus Cut Tape), and regulatory compliance mandates specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can the 1N5378BRLG replace the 1N5378B-TP in existing circuit designs?

A: Yes. Both parts share identical electrical specifications including Zener voltage (100 V), power rating (5 W), impedance (90 Ohms), reverse leakage current (500 nA @ 76 V), and forward voltage (1.2 V @ 1 A). Both use Through Hole Axial mounting, ensuring mechanical and electrical compatibility.

Q: What is the difference between the operating temperature ranges?

A: The 1N5378B-TP operates from -55°C to 150°C, while the 1N5378BRLG operates from -65°C to 200°C. The 1N5378BRLG provides extended temperature capability at both lower and upper limits. Selection depends on the thermal environment of the application.

Q: Are there packaging differences between these parts?

A: The 1N5378B-TP is supplied in Bulk packaging, while the 1N5378BRLG is supplied in Cut Tape (CT) packaging. Both maintain identical Through Hole Axial form factors. Packaging format affects handling and assembly processes but not electrical or mechanical performance.

Q: What compliance certifications apply to each part?

A: The 1N5378B-TP is REACH Unaffected. The 1N5378BRLG is ROHS3 Compliant and REACH Unaffected. Applications requiring ROHS3 compliance should specify the 1N5378BRLG.

Q: Are the base product numbers the same?

A: Yes. Both parts share the base product number 1N5378, indicating they are variants of the same core design with identical electrical performance specifications.