1N4716-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The 1N4716-TP is a 39 V, 500 mW Zener diode in DO-35 axial through-hole packaging manufactured by Micro Commercial Co. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and production continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability in existing circuit designs.

Substiute Parts

1N4716-TP

Micro Commercial CoIn Stock: 11071N4716-TP Datasheet

Current PartRFQ

1N4716 TR PBFREE

Central Semiconductor CorpIn Stock: 9041N4716 TR PBFREE Datasheet

DirectRFQ

1N5259B-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 72621N5259B-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1N4716-TP are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Core Electrical Parameters:

• Zener voltage: 39 V nominal
• Tolerance: ±5%
• Maximum power dissipation: 500 mW
• Package type: DO-35 axial through-hole

Compliance Requirements:

• RoHS3 compliance
• ECCN classification: EAR99
• HTSUS code: 8541.10.0050

Parts meeting these specifications are classified as direct substitutes. Secondary considerations include reverse leakage current specifications and forward voltage characteristics, which may vary within acceptable operational ranges for the 39 V Zener classification.

Parameter Comparison

Engineering Selection Recommendations

1N4716 TR PBFREE (Central Semiconductor Corp)

This part is the primary direct substitute for the obsolete 1N4716-TP. It maintains identical electrical specifications including 39 V nominal Zener voltage, ±5% tolerance, 500 mW power rating, and matching forward voltage characteristics. The part is currently in active production status with ROHS3 compliance. The extended operating temperature range (-65°C to 200°C) provides broader thermal performance compared to the original specification. Packaging is supplied in Tape & Reel format, suitable for automated assembly processes.

1N5259B-TR (Vishay General Semiconductor - Diodes Division)

This part is a functional equivalent with identical core Zener specifications (39 V, ±5%, 500 mW). It is actively produced and carries AEC-Q101 automotive qualification, indicating compliance with automotive-grade reliability standards. The reverse leakage current specification is higher (100 nA @ 30 V versus 10 nA @ 29.6 V), and the maximum operating temperature is limited to 175°C. Forward voltage is lower (1.1 V @ 200 mA), which may provide improved efficiency in certain circuit topologies. Packaging is supplied in Cut Tape format. This part is suitable for applications requiring automotive-grade qualification.

Both substitute parts are ROHS3 compliant and carry identical ECCN and HTSUS classifications, ensuring regulatory equivalence with the original component.

Frequently Asked Questions (FAQ)

Q: Can the 1N4716 TR PBFREE directly replace the 1N4716-TP in existing designs?

A: Yes. Both parts share identical Zener voltage (39 V), tolerance (±5%), power rating (500 mW), forward voltage characteristics (1.5 V @ 100 mA), and DO-35 axial package configuration. The primary difference is packaging format (Tape & Reel versus bulk) and extended operating temperature range on the substitute part.

Q: What is the difference between the 1N4716 TR PBFREE and 1N5259B-TR?

A: Both parts meet the core 39 V, 500 mW Zener specifications. The 1N5259B-TR has higher reverse leakage current (100 nA @ 30 V versus 10 nA @ 29.6 V) and lower maximum operating temperature (175°C versus 200°C). The 1N5259B-TR carries AEC-Q101 automotive qualification. Forward voltage differs (1.1 V @ 200 mA versus 1.5 V @ 100 mA), which may affect circuit performance in specific applications.

Q: Are there packaging compatibility concerns when substituting these parts?

A: All three parts use identical DO-35 axial through-hole packaging. The 1N4716-TP is supplied in bulk form, while the 1N4716 TR PBFREE uses Tape & Reel packaging and the 1N5259B-TR uses Cut Tape packaging. These packaging differences do not affect electrical or mechanical compatibility in circuit applications; they relate only to procurement and assembly processes.

Q: Does the 1N5259B-TR automotive qualification affect its use in non-automotive applications?

A: No. AEC-Q101 qualification indicates the part meets automotive reliability standards, which are generally more stringent than commercial-grade requirements. Parts with automotive qualification are suitable for any application requiring equivalent or lower reliability specifications.

Q: What is the significance of the reverse leakage current difference between parts?

A: The 1N4716-TP and 1N4716 TR PBFREE specify 10 nA @ 29.6 V, while the 1N5259B-TR specifies 100 nA @ 30 V. This tenfold difference may be significant in high-impedance circuits or precision voltage reference applications where leakage current directly affects circuit performance. For standard voltage regulation applications, this difference is typically negligible.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 1N4716-TP, 1N4716 TR PBFREE, and 1N5259B-TR are all ROHS3 compliant, ensuring regulatory equivalence for applications subject to RoHS directives.