ES1GLH Equivalent & Substitute Parts

Part Overview

The ES1GLH is a 400V, 1A super fast recovery diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the SOD-123 package. This component is classified as not for new designs, indicating it has been superseded in the manufacturer's product line. The part operates across a junction temperature range of -55°C to 150°C and carries automotive-grade qualification under AEC-Q101 standards.

Due to its discontinued status for new designs, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for design continuity, maintenance applications, and legacy system support. Substitute parts must maintain compatibility across voltage ratings, current handling, recovery time characteristics, and package form factors.

Substiute Parts

ES1GLH

Taiwan Semiconductor CorporationIn Stock: 879ES1GLH Datasheet

Current PartRFQ

ES1GLWH

Taiwan Semiconductor CorporationIn Stock: 20300ES1GLWH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ES1GLH is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Voltage - DC Reverse (Vr) (Max): 400 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
• Reverse Recovery Time (trr): 35 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 400 V
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical & Environmental Specifications:

• Mounting Type: Surface Mount
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Operating Temperature - Junction: -55°C minimum to 150°C minimum

Package Compatibility:

• Primary package: SOD-123 or equivalent form factors
• Supplier Device Package designation

Substitute parts must satisfy all electrical parameters identically and maintain automotive-grade qualification with AEC-Q101 certification. Package variations are permissible when mechanical and electrical compatibility is preserved.

Parameter Comparison

Engineering Selection Recommendations

The ES1GLWH serves as the direct substitute for the ES1GLH based on the following engineering criteria:

Electrical Equivalence: All critical electrical parameters are identical, including reverse voltage rating (400 V), average rectified current (1 A), forward voltage drop (1.3 V @ 1 A), and reverse recovery time (35 ns). These specifications ensure functional interchangeability in circuit applications.

Compliance & Certification: Both parts maintain automotive-grade classification with AEC-Q101 qualification and ROHS3 compliance, satisfying regulatory and quality requirements for automotive and industrial applications.

Product Status Advantage: The ES1GLWH carries active product status, whereas the ES1GLH is designated not for new designs. This distinction makes the ES1GLWH the preferred choice for ongoing production, maintenance, and new design implementations.

Temperature Operating Range: The ES1GLWH extends the maximum junction temperature to 175°C compared to the ES1GLH's 150°C, providing enhanced thermal margin in high-temperature operating environments.

Package Compatibility: The SOD-123W package is a compatible variant of the SOD-123 form factor, maintaining mechanical fit and electrical performance in surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can the ES1GLWH replace the ES1GLH in existing designs?

A: Yes. The ES1GLWH is electrically equivalent to the ES1GLH across all critical parameters: 400V reverse voltage, 1A average rectified current, 1.3V forward voltage drop, and 35ns reverse recovery time. Both parts carry identical automotive-grade AEC-Q101 qualification and ROHS3 compliance. The SOD-123W package is mechanically compatible with SOD-123 footprints in surface mount applications.

Q: What is the difference between the SOD-123 and SOD-123W packages?

A: SOD-123W is a wider variant of the SOD-123 package, maintaining the same electrical performance and pin configuration while providing a larger footprint. Both packages are surface mount form factors suitable for automated assembly. Component selection depends on PCB layout and available pad spacing.

Q: Why is the ES1GLH marked as not for new designs?

A: The ES1GLH has been superseded in the manufacturer's product portfolio. Taiwan Semiconductor Corporation recommends the ES1GLWH for new applications. The ES1GLH remains available for legacy system support and maintenance applications where existing inventory or design continuity is required.

Q: Are there any thermal performance differences between these parts?

A: The ES1GLWH supports a maximum junction temperature of 175°C, compared to the ES1GLH's 150°C. This 25°C advantage provides additional thermal headroom in high-temperature applications. Both parts operate identically across the overlapping temperature range of -55°C to 150°C.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the ES1GLH and ES1GLWH carry automotive-grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards. Both are ROHS3 compliant and REACH unaffected.

Q: What is the reverse recovery time specification, and why is it important?

A: Reverse recovery time (trr) is 35 nanoseconds for both parts. This specification defines how quickly the diode transitions from conducting to blocking state when reverse bias is applied. The 35ns fast recovery characteristic is critical for high-frequency switching applications and power conversion circuits, ensuring minimal switching losses and electromagnetic interference.

Q: Can these diodes be used interchangeably in high-frequency switching applications?

A: Yes. Both parts are classified as fast recovery diodes with identical 35ns reverse recovery time and fast recovery speed specification (≤ 500ns, > 200mA). This classification makes them suitable for high-frequency rectification, power factor correction, and switching power supply applications.