TLZ39D-GS08 Equivalent & Substitute Zener Diodes Reference

Part Overview

The TLZ39D-GS08 by Vishay General Semiconductor is a 39 V, 500 mW surface mount Zener diode in a SOD-80 (DO-213AC, MiniMELF) package. It is widely used for voltage regulation and surge suppression in surface mount applications. Component substitution is often required due to supply constraints, inventory differences, or approval processes. Identifying suitable equivalent Zener diodes is essential for maintaining design integrity and compliance with sourcing requirements.

Key Parameters

Parameter	Main Part: TLZ39D-GS08
Voltage - Zener (Nom) (Vz)	39 V
Power - Max	500 mW
Impedance (Max) (Zzt)	85 Ohms
Current - Reverse Leakage @ Vr	40 nA @ 34.8 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA
Operating Temperature	-65°C ~ 175°C
Mounting Type	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package	SOD-80 MiniMELF

Substitute Part Grouping Explanation

Substitute parts for Zener diodes in this application category are grouped based on identical or compatible electrical and mechanical parameters. Allowed substitution is strictly based on the matching of the following key parameters:

Nominal Zener Voltage (Vz)
Maximum Power Dissipation
Package / Case / Footprint
Mounting Type
Maximum Zener Impedance (Zzt)
Reverse Leakage Current at specified test voltage
Operating Temperature Range

Only parts concurrently matching these parameters are included as substitutes.

Parameter Comparison

Parameter	Main Part: TLZ39D-GS08	Substitute Part: BZV55-C39,115
Manufacturer	Vishay General Semiconductor	NXP Semiconductors
Part Status	Active	Active
Voltage - Zener (Nom) (Vz)	39 V	39 V
Power - Max	500 mW	500 mW
Impedance (Max) (Zzt)	85 Ohms	130 Ohms
Current - Reverse Leakage @ Vr	40 nA @ 34.8 V	50 nA @ 27.3 V
Voltage - Forward (Vf) (Max) @ If	1.5 V @ 200 mA	900 mV @ 10 mA
Operating Temperature	-65°C ~ 175°C	-65°C ~ 200°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package	SOD-80 MiniMELF	LLDS; MiniMelf
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Both the TLZ39D-GS08 and the BZV55-C39,115 are designated as active products by their respective manufacturers. Both diodes indicate REACH compliance and possess an unlimited moisture sensitivity level (MSL 1). Substitution may proceed where compliance and RoHS/REACH status are mandated, as no deviation exists on these points in the provided data.

Frequently Asked Questions (FAQ)

Q: What key parameters must match when substituting a Zener diode such as the TLZ39D-GS08?
A: Substitute selection must be based on nominal Zener voltage, maximum power dissipation, device package, mounting type, impedance, reverse leakage current, and operating temperature range.

Q: Are the TLZ39D-GS08 and BZV55-C39,115 footprint-compatible?
A: Both devices use the DO-213AC, MINI-MELF, SOD-80 package, which ensures physical footprint compatibility for surface mount assembly.

Q: Are there differences in compliance or status between these Zener diodes?
A: Both parts have an unlimited moisture sensitivity level (MSL 1) and are REACH unaffected. Both are marked active.

Q: Is there any difference in operating temperature between these parts?
A: The BZV55-C39,115 offers a wider upper temperature limit (-65°C ~ 200°C) compared to the TLZ39D-GS08 (-65°C ~ 175°C), according to the provided specifications.

Q: Can the BZV55-C39,115 substitute directly for the TLZ39D-GS08 in existing SOD-80 layouts?
A: Based on the provided package specification (DO-213AC, MINI-MELF, SOD-80) and surface mounting, package compatibility is maintained.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message