GL05T-HG3-08 Equivalent & Substitute Parts

Part Overview

The GL05T-HG3-08 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in SOT-23-3 packaging, providing transient voltage protection with a 5V reverse standoff voltage and 11V maximum clamping voltage at peak pulse current. The part is currently classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

GL05T-HG3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 6125GL05T-HG3-08 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-HG3-08 is determined by the following critical electrical and mechanical parameters:

Voltage Parameters: The reverse standoff voltage (5V max) and breakdown voltage (6.9V min) establish the primary protection threshold. Substitute parts must maintain the same 5V reverse standoff specification to ensure equivalent circuit protection characteristics.

Current and Power Ratings: Peak pulse current of 5A at 8/20µs waveform and peak pulse power of 300W define the transient energy handling capability. Substitute components must support these specifications.

Package Compatibility: The SOT-23-3 surface mount package is mandatory for PCB layout compatibility. Equivalent packages include TO-236-3 and SC-59 designations, which are physically and electrically interchangeable.

Environmental and Compliance Requirements: Operating temperature range, automotive grade classification, AEC-Q101 qualification, ROHS3 compliance, and MSL-1 rating are essential for applications requiring automotive or high-reliability standards.

The PESD5V0U1UT,215 from Nexperia USA Inc. qualifies as a manufacturer-recommended substitute based on matching the 5V reverse standoff voltage, 5A peak pulse current, SOT-23-3 package footprint, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The PESD5V0U1UT,215 is the active manufacturer-recommended substitute for the obsolete GL05T-HG3-08. Both components share identical reverse standoff voltage (5V), peak pulse current (5A), SOT-23-3 package footprint, and compliance certifications (ROHS3, MSL-1).

The Nexperia part is currently in active production with substantial inventory availability (37,300 pcs), ensuring supply chain continuity. Both components maintain equivalent operating temperature ranges and moisture sensitivity ratings suitable for automotive and industrial applications.

The PESD5V0U1UT,215 is supplied in Tape & Reel packaging, standard for high-volume manufacturing operations. The component meets all electrical and mechanical requirements for direct substitution in existing GL05T-HG3-08 designs without PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the PESD5V0U1UT,215 be used as a direct replacement for GL05T-HG3-08?

A: Yes. Both components share the same 5V reverse standoff voltage, 5A peak pulse current rating, and SOT-23-3 package footprint. No PCB layout changes are required for substitution.

Q: What is the significance of the different clamping voltages (11V vs. 21V)?

A: The clamping voltage represents the maximum voltage across the diode at peak pulse current. The PESD5V0U1UT,215 exhibits higher clamping voltage (21V) compared to the GL05T-HG3-08 (11V). Circuit designs must verify that this parameter does not exceed downstream component voltage ratings.

Q: Are there differences in capacitance between these parts?

A: Yes. The GL05T-HG3-08 has 2.5pF capacitance at 1MHz, while the PESD5V0U1UT,215 has 0.6pF. The lower capacitance of the Nexperia part may provide improved high-frequency performance in sensitive signal applications.

Q: Do both parts meet automotive qualification requirements?

A: The GL05T-HG3-08 carries automotive grade classification and AEC-Q101 qualification. The PESD5V0U1UT,215 is specified for general purpose applications. Applications requiring automotive qualification should verify Nexperia's specific automotive certifications for this part number.

Q: What is the difference between the operating temperature specifications?

A: The GL05T-HG3-08 specifies junction temperature (TJ) range of -55°C to 150°C, while the PESD5V0U1UT,215 specifies ambient temperature (TA) range of -65°C to 150°C. Both ranges are suitable for standard industrial and automotive environments.

Q: Are the packaging formats compatible?

A: Both components use SOT-23-3 surface mount packaging. The GL05T-HG3-08 is supplied as individual units, while the PESD5V0U1UT,215 is supplied in Tape & Reel format. The physical package dimensions and PCB footprint are identical.