GL05T-G3-08 Equivalent & Substitute Parts

Part Overview

The GL05T-G3-08 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for general-purpose transient voltage protection in surface-mount applications, featuring a 5V reverse standoff voltage and 11V maximum clamping voltage at peak pulse current. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

GL05T-G3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 844GL05T-G3-08 Datasheet

Current PartRFQ

PESD5V0U1UT,215

Nexperia USA Inc.In Stock: 37354PESD5V0U1UT,215 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GL05T-G3-08 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Reverse standoff voltage must match or exceed 5V (Max)
• Breakdown voltage must fall within acceptable range (minimum 6.9V or higher)
• Peak pulse current rating must be equal to or greater than 5A (8/20µs)
• Clamping voltage performance must be compatible with circuit protection requirements
• Unidirectional channel configuration (1 channel)
• Zener diode type classification

Mechanical Compatibility Criteria:

• Surface-mount package: SOT-23-3 / TO-236-3 / SC-59 footprint compatibility
• Tape & Reel (TR) packaging format
• Moisture Sensitivity Level 1 (Unlimited)

Compliance Requirements:

• ROHS3 Compliant status
• REACH Unaffected classification
• EAR99 ECCN designation

The PESD5V0U1UT,215 meets these substitution criteria while maintaining electrical performance within acceptable operating parameters for general-purpose TVS applications.

Parameter Comparison

Engineering Selection Recommendations

The PESD5V0U1UT,215 is the manufacturer-recommended substitute for the obsolete GL05T-G3-08. Selection of this substitute is supported by the following factors:

Product Status: The GL05T-G3-08 is classified as obsolete, while the PESD5V0U1UT,215 maintains active production status, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: Both devices share identical reverse standoff voltage (5V Max) and peak pulse current ratings (5A at 8/20µs), establishing core functional equivalence for general-purpose TVS applications. The substitute's higher clamping voltage (21V versus 11V) and lower peak pulse power rating (80W versus 300W) represent design trade-offs that do not preclude substitution in circuits designed for the original part's specifications.

Compliance Certification: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for electronic component procurement and deployment.

Package Compatibility: Both devices utilize the SOT-23-3 / TO-236-3 surface-mount package footprint, enabling direct PCB layout compatibility without redesign.

Thermal Performance: The substitute's extended lower operating temperature limit (-65°C versus -55°C) provides enhanced thermal margin for applications requiring expanded temperature range operation.

Frequently Asked Questions (FAQ)

Q: Can the PESD5V0U1UT,215 be used as a direct replacement for the GL05T-G3-08 on existing PCBs?

A: Yes. Both devices utilize identical SOT-23-3 / TO-236-3 surface-mount package footprints, enabling direct PCB placement without layout modification. Electrical parameters remain compatible for general-purpose TVS applications.

Q: What is the significance of the higher clamping voltage (21V) in the substitute part?

A: The PESD5V0U1UT,215 exhibits a higher maximum clamping voltage (21V) compared to the GL05T-G3-08 (11V). This parameter indicates the voltage level at which the device clamps transient overvoltage events at peak pulse current. The higher clamping voltage does not prevent substitution; however, circuit designers must confirm that the protected circuit can tolerate this clamping level without component damage.

Q: Are there differences in capacitance between these parts?

A: Yes. The GL05T-G3-08 exhibits 2.5pF capacitance at 1MHz, while the PESD5V0U1UT,215 exhibits 0.6pF. The lower capacitance of the substitute may provide improved performance in high-frequency signal integrity applications by reducing parasitic loading effects.

Q: Does the lower peak pulse power rating of the substitute affect substitution suitability?

A: The PESD5V0U1UT,215 has a peak pulse power rating of 80W compared to the GL05T-G3-08's 300W. This difference reflects design optimization in the substitute device. Substitution is appropriate for applications where the transient energy levels remain within the substitute's power dissipation capability. Circuit analysis is required to confirm compatibility with specific application transient profiles.

Q: What is the difference between TJ and TA temperature specifications?

A: TJ (Junction Temperature) and TA (Ambient Temperature) represent different measurement references. The GL05T-G3-08 specifies -55°C to 150°C TJ, while the PESD5V0U1UT,215 specifies -65°C to 150°C TA. Both ranges encompass standard industrial and commercial operating conditions. The substitute's extended lower temperature specification provides additional thermal margin.

Q: Are both parts RoHS compliant?

A: Yes. Both the GL05T-G3-08 and PESD5V0U1UT,215 maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for electronic component procurement in regulated markets.

Q: Why is the GL05T-G3-08 classified as obsolete?

A: Obsolescence classification indicates that the manufacturer has discontinued production of this component. The PESD5V0U1UT,215 remains in active production, ensuring continued availability for new designs and ongoing support of existing applications requiring TVS protection at 5V standoff voltage levels.