VESD05-02V-G-08 Equivalent & Substitute Parts

Part Overview

The VESD05-02V-G-08 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for general-purpose overvoltage protection in surface-mount applications using the SOD-523 package. The part operates with a 5V reverse standoff voltage and provides 20V typical clamping voltage at peak pulse current of 6A (8/20µs).

The VESD05-02V-G-08 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications requiring 5V-class TVS diode protection.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	5V (Max)	V
Voltage - Breakdown (Min)	6.5V	V
Voltage - Clamping (Max) @ Ipp	20V (Typ)	V
Current - Peak Pulse (10/1000µs)	6A (8/20µs)	A
Power - Peak Pulse	120W	W
Capacitance @ Frequency	55pF @ 1MHz	pF
Operating Temperature	-40°C ~ 125°C (TJ)	°C
Package / Case	SC-79, SOD-523	—
Mounting Type	Surface Mount	—
Type	Zener	—
Unidirectional Channels	1	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the VESD05-02V-G-08 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Reverse Standoff (Typ): 5V (Max)
Voltage - Breakdown (Min): 6.2V to 6.85V range
Package / Case: SOD-523 (primary) or SOD-723 (alternative package)
Mounting Type: Surface Mount
Type: Zener, Unidirectional (1 channel)

Secondary Compatibility Parameters:

Voltage - Clamping (Max) @ Ipp: 11.5V to 18.6V range
Current - Peak Pulse (8/20µs): 8.7A to 16A range
Power - Peak Pulse: 100W to 200W range
Operating Temperature: -40°C minimum to 125°C minimum
RoHS Status: ROHS3 Compliant

Substitute parts must maintain the 5V reverse standoff voltage class and operate within the specified temperature and compliance requirements. Parts with different voltage ratings (12V, 15V, 24V, 3.3V) are not direct substitutes and are excluded from this analysis.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ)	Voltage - Breakdown (Min)	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse (8/20µs)	Power - Peak Pulse	Capacitance @ 1MHz	Operating Temperature	Package	Product Status
VESD05-02V-G-08	Vishay	5V (Max)	6.5V	20V (Typ)	6A	120W	55pF	-40°C ~ 125°C	SOD-523	Obsolete
VESD05C1-02V-G3-08	Vishay	5V (Max)	6.85V	11.5V	8.7A	100W	67pF	-55°C ~ 150°C	SOD-523	Active
CPDH5V0U	Comchip Technology	5V	6V	12.5V	16A	200W	90pF	—	SOD-523	Active
ESD5V0D5-TP	Micro Commercial Co	5V (Max)	6.2V	18.6V	11.6A	174W	80pF	-55°C ~ 150°C	SOD-523	Active
ESD5V0D7-TP-HF	Micro Commercial Co	5V (Max)	6.2V	13.3V	8.8A	117W	65pF	-55°C ~ 150°C	SOD-723	Obsolete
ESD5Z5.0T5G	onsemi	5V (Max)	6.2V	18.6V	9.4A	174W	80pF	-55°C ~ 150°C	SOD-523	Active

Engineering Selection Recommendations

Recommended Primary Substitutes (Active Status, SOD-523 Package):

VESD05C1-02V-G3-08 (Vishay) — Direct manufacturer alternative with extended operating temperature range (-55°C ~ 150°C). AEC-Q101 automotive qualification. Clamping voltage reduced to 11.5V with increased peak pulse current (8.7A). Suitable for applications requiring automotive-grade reliability.
ESD5V0D5-TP (Micro Commercial Co) — Active status with clamping voltage of 18.6V closely matching the original 20V specification. Peak pulse current of 11.6A exceeds original 6A rating. Extended operating temperature range (-55°C ~ 150°C). Recommended for general-purpose applications requiring performance parity with VESD05-02V-G-08.
ESD5Z5.0T5G (onsemi) — Active status with identical clamping voltage (18.6V) and extended temperature range (-55°C ~ 150°C). Peak pulse current of 9.4A provides intermediate performance between original and higher-rated alternatives. Highest inventory availability (900,200 pcs).
CPDH5V0U (Comchip Technology) — Active status with highest peak pulse current rating (16A) and power dissipation (200W). Clamping voltage of 12.5V. Suitable for applications requiring enhanced transient suppression capability.

Alternative Package Consideration:

ESD5V0D7-TP-HF (Micro Commercial Co) — Obsolete status with SOD-723 package (alternative to SOD-523). Extended operating temperature range (-55°C ~ 150°C). Use only if SOD-723 package compatibility is required and SOD-523 alternatives are unsuitable.

Selection Basis:

All recommended substitutes maintain 5V reverse standoff voltage class
All recommended substitutes are RoHS3 compliant
Active-status parts ensure ongoing supply chain availability
Extended temperature ranges (-55°C ~ 150°C) provide superior thermal performance compared to original (-40°C ~ 125°C)
SOD-523 package maintains mechanical compatibility with original design

Frequently Asked Questions (FAQ)

Q1: Can VESD05C1-02V-G3-08 directly replace VESD05-02V-G-08 in existing designs?

A: Yes, VESD05C1-02V-G3-08 is a direct mechanical and electrical substitute. Both parts share the same 5V reverse standoff voltage, SOD-523 package, and surface-mount configuration. The primary difference is reduced clamping voltage (11.5V vs. 20V) and increased peak pulse current (8.7A vs. 6A). Verify that the lower clamping voltage meets circuit protection requirements before implementation.

Q2: What is the difference between SOD-523 and SOD-723 packages?

A: SOD-523 and SOD-723 are both surface-mount diode packages but differ in physical dimensions and lead configuration. SOD-523 is the standard package for the VESD05-02V-G-08. ESD5V0D7-TP-HF uses SOD-723 package and is not mechanically compatible with SOD-523 footprints. Use SOD-723 alternatives only if your PCB design specifically accommodates this package.

Q3: Why do substitute parts have different clamping voltages?

A: Clamping voltage variation (11.5V to 18.6V range) reflects different internal design approaches by manufacturers while maintaining the same 5V reverse standoff voltage class. All listed substitutes operate within acceptable parameters for 5V-class protection. Select clamping voltage based on specific circuit protection requirements and transient energy absorption needs.

Q4: Are automotive-qualified parts (AEC-Q101, AEC-Q100) required for my application?

A: Automotive qualification is not mandatory unless your application is automotive-grade. VESD05C1-02V-G3-08 carries AEC-Q101 qualification. Non-automotive parts (CPDH5V0U, ESD5V0D5-TP, ESD5Z5.0T5G) are suitable for industrial and consumer applications. Verify qualification requirements with your design specifications.

Q5: Which substitute offers the best inventory availability?

A: ESD5Z5.0T5G (onsemi) provides the highest inventory availability at 900,200 pcs. This part also matches the original clamping voltage (18.6V) and offers extended operating temperature range (-55°C ~ 150°C), making it a strong choice for high-volume production requirements.

Q6: Can I use parts with different peak pulse current ratings?

A: Yes, provided the substitute part's peak pulse current rating meets or exceeds your circuit's transient current requirements. Higher-rated parts (CPDH5V0U at 16A, ESD5V0D5-TP at 11.6A) provide enhanced protection margin. Lower-rated parts must be evaluated to ensure adequate transient suppression for your specific application.

Q7: What is the significance of operating temperature range differences?

A: The original VESD05-02V-G-08 operates from -40°C to 125°C. Substitute parts with extended ranges (-55°C to 150°C) provide superior performance in extreme temperature environments. If your application operates within -40°C to 125°C, both original and extended-range substitutes are acceptable. Extended-range parts offer additional design margin at no performance penalty.

Q8: Are all listed substitutes RoHS3 compliant?

A: Yes, all recommended substitute parts are RoHS3 compliant, matching the original VESD05-02V-G-08 compliance status. This ensures compatibility with environmental and regulatory requirements for electronics manufacturing.

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