GSOT04-HT3-GS08 Equivalent & Substitute Parts

Part Overview

The GSOT04-HT3-GS08 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in the LLP75-3B package and provides 14.3V clamping protection at 30A peak pulse current. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

GSOT04-HT3-GS08

Vishay General Semiconductor - Diodes DivisionIn Stock: 763GSOT04-HT3-GS08 Datasheet

Current PartRFQ

GSOT04-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 23063GSOT04-E3-08 Datasheet

MFR RecommendedRFQ

1N4732G

Taiwan Semiconductor CorporationIn Stock: 7531N4732G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GSOT04-HT3-GS08 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff: 4V nominal range
• Voltage - Breakdown (Min): 5V
• Voltage - Clamping (Max) @ Ipp: 14.3V
• Current - Peak Pulse (10/1000µs): 30A (8/20µs)
• Power - Peak Pulse: 429W
• Capacitance @ Frequency: 310pF @ 1MHz
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Unidirectional Channels: 1
• Type: Zener

Acceptable Variations:

• Package / Case: Different surface mount packages (SOT-23-3 acceptable; through-hole packages acceptable with design review)
• Mounting Type: Surface mount or through-hole
• Product Status: Active preferred over obsolete
• Compliance: ROHS3 and REACH status maintained

The GSOT04-E3-08 is a manufacturer-recommended direct substitute with identical electrical specifications but in an active SOT-23-3 package. The 1N4732G is a through-hole zener diode alternative with comparable voltage and power ratings but different package form factor and mounting type.

Parameter Comparison

Engineering Selection Recommendations

GSOT04-E3-08 (Manufacturer-Recommended Substitute): This is the primary substitute for the obsolete GSOT04-HT3-GS08. Both parts share identical electrical specifications including voltage clamping, peak pulse current, power dissipation, and capacitance characteristics. The GSOT04-E3-08 is in active production status with significantly higher inventory availability (22,999 pcs vs. 721 pcs). Both parts maintain ROHS3 compliance and REACH unaffected status. The primary difference is the package form factor: SOT-23-3 versus LLP75-3B. Both are surface mount packages suitable for automated assembly. This substitute is recommended for new designs and ongoing production requiring direct electrical equivalence.

1N4732G (Alternative Substitute): The 1N4732G is a through-hole zener diode with a nominal zener voltage of 4.7V and 1W power rating. This part differs significantly from the main part in package form factor (DO-204AL axial through-hole versus surface mount), power dissipation capability (1W versus 429W), and mounting type. The 1N4732G is suitable only for applications where through-hole mounting is required and peak pulse power requirements do not exceed 1W. This substitute requires circuit board redesign and is not recommended for direct replacement in existing surface mount designs.

Both substitute parts maintain automotive-grade compliance and regulatory certifications. Selection between GSOT04-E3-08 and 1N4732G depends on packaging requirements and power dissipation specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can GSOT04-E3-08 be used as a direct replacement for GSOT04-HT3-GS08 in existing designs?

A: Yes. The GSOT04-E3-08 provides identical electrical performance with matching voltage clamping (14.3V), peak pulse current (30A at 8/20µs), power dissipation (429W), and capacitance (310pF @ 1MHz). Both are surface mount packages. The primary consideration is PCB footprint compatibility between LLP75-3B and SOT-23-3 packages. Verify footprint dimensions with component datasheets before implementation.

Q: What are the key differences between GSOT04-E3-08 and 1N4732G?

A: GSOT04-E3-08 is a TVS diode with 30A peak pulse current capability and 429W power dissipation in a surface mount SOT-23-3 package. 1N4732G is a through-hole zener diode with 1W power rating and axial lead configuration. The 1N4732G is not suitable for applications requiring the 30A pulse current or 429W power dissipation of the original part. Use 1N4732G only when through-hole mounting is mandatory and power requirements are significantly lower.

Q: Are there package compatibility concerns when substituting GSOT04-E3-08?

A: Yes. The GSOT04-HT3-GS08 uses LLP75-3B package while GSOT04-E3-08 uses SOT-23-3 package. Both are surface mount, but footprints differ. Verify PCB layout compatibility, including pad spacing, trace routing, and thermal management provisions. Consult package datasheets for precise dimensional specifications.

Q: Do substitute parts maintain automotive qualification?

A: GSOT04-E3-08 maintains automotive-grade classification with AEC-Q101 qualification equivalent to the original part. 1N4732G is not specified with automotive qualification. For automotive applications, GSOT04-E3-08 is the appropriate substitute.

Q: What is the inventory status of substitute parts?

A: GSOT04-E3-08 has 22,999 pcs in stock (active production). 1N4732G has 703 pcs in stock (active production). The original GSOT04-HT3-GS08 has 721 pcs remaining inventory (obsolete status). GSOT04-E3-08 is recommended for long-term procurement planning.