1N5987B-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N5987B-TP is a 3 V, 500 mW Zener diode manufactured by Micro Commercial Co in a DO-35 through-hole package. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and production continuity. The substitute part identified maintains identical electrical specifications and package configuration, enabling direct functional replacement in existing circuit designs.

Substiute Parts

1N5987B-TP

Micro Commercial CoIn Stock: 9121N5987B-TP Datasheet

Current PartRFQ

1N5987B BK PBFREE

Central Semiconductor CorpIn Stock: 10611N5987B BK PBFREE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N5987B-TP is determined by strict equivalence across the following critical parameters:

Zener voltage specification (3 V nominal with ±5% tolerance), maximum power dissipation rating (500 mW), impedance characteristics (95 Ohms maximum), reverse leakage current (50 µA @ 1 V), forward voltage drop (1.5 V @ 100 mA), and operating temperature range (-65°C to 200°C). The package configuration must remain DO-35 through-hole to ensure mechanical and electrical compatibility with existing printed circuit board layouts and assembly processes.

The substitute part 1N5987B BK PBFREE, manufactured by Central Semiconductor Corp, satisfies all specified parameters identically. This part carries active product status and maintains full RoHS3 compliance, providing regulatory continuity for new production runs and design updates.

Parameter Comparison

Engineering Selection Recommendations

The 1N5987B BK PBFREE manufactured by Central Semiconductor Corp is the direct functional equivalent for the obsolete 1N5987B-TP. Selection of this substitute part is based on complete electrical parameter equivalence and identical package configuration.

The substitute part carries active product status, ensuring availability for current and future production requirements. Both the original part and substitute maintain ROHS3 compliance and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0050), supporting seamless integration into existing supply chains and compliance documentation.

The substitute part is supplied in bulk packaging, contrasting with the original part's unspecified packaging format. This distinction affects procurement and inventory management but does not impact electrical or mechanical performance in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N5987B BK PBFREE be used as a direct replacement for the 1N5987B-TP in existing designs?

A: Yes. The substitute part maintains identical electrical specifications across all critical parameters: 3 V zener voltage, 500 mW power rating, 95 Ohms impedance, 50 µA reverse leakage, and 1.5 V forward voltage. The DO-35 through-hole package ensures mechanical compatibility with existing printed circuit board layouts without modification.

Q: What is the primary reason for substitution?

A: The 1N5987B-TP is classified as obsolete. The 1N5987B BK PBFREE is an active product from Central Semiconductor Corp, providing supply continuity and support for ongoing production and design updates.

Q: Are there compliance differences between the original and substitute parts?

A: No. Both parts are ROHS3 compliant and carry identical regulatory classifications. The substitute part additionally carries REACH Unaffected status, providing expanded regulatory coverage for certain markets.

Q: Does packaging format affect circuit performance?

A: No. The substitute part is supplied in bulk packaging rather than the original part's unspecified format. This distinction affects procurement and inventory handling only; electrical and mechanical performance in circuit applications remains identical.

Q: What parameters must remain constant for substitution to be valid?

A: Zener voltage (3 V), tolerance (±5%), power rating (500 mW), impedance (95 Ohms maximum), reverse leakage current (50 µA @ 1 V), forward voltage (1.5 V @ 100 mA), operating temperature range (-65°C to 200°C), and package type (DO-35 through-hole) must all match exactly. The 1N5987B BK PBFREE satisfies all these requirements.