ES1FL Equivalent & Substitute Parts

Part Overview

The ES1FL is a 35 ns, 1A, 300V super fast recovery rectifier diode manufactured by Taiwan Semiconductor Corporation. This surface mount component is packaged in SOD-123 and is classified as not for new designs. The ES1FL serves applications requiring fast switching characteristics with moderate voltage and current ratings in compact form factors.

Due to its discontinued status for new designs, equivalent and substitute parts are necessary for ongoing production support, design updates, and inventory management. Substitutes must maintain electrical compatibility within the specified parameter ranges while accommodating packaging and thermal requirements.

Substiute Parts

ES1FL

Taiwan Semiconductor CorporationIn Stock: 10338ES1FL Datasheet

Current PartRFQ

ES1GLW

Taiwan Semiconductor CorporationIn Stock: 20893ES1GLW Datasheet

MFR RecommendedRFQ

ES1F

Sanken Electric USA Inc.In Stock: 9704ES1F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the ES1FL is based on the following critical parameters:

Primary Substitution Criteria:

• Reverse voltage rating (Vr) equal to or greater than 300 V
• Average rectified current (Io) equal to or greater than 1 A
• Reverse recovery time (trr) equal to or less than 35 ns (fast recovery classification)
• Forward voltage (Vf) within acceptable operating range
• Surface mount packaging with compatible footprint

MFR Recommended Substitute - ES1GLW: The ES1GLW meets all primary substitution criteria with enhanced specifications. It maintains the 35 ns recovery time and 1 A current rating while providing 400 V reverse voltage capability. The SOD-123W package is mechanically compatible with SOD-123 footprints. This part is active in production with superior thermal range (-55°C to 175°C) and improved availability.

Similar Substitute - ES1F: The ES1F is listed as a similar substitute but does not meet primary substitution criteria. It features through-hole axial packaging rather than surface mount, 1500 V reverse voltage (exceeding application requirements), 500 mA current rating (below 1 A requirement), and 1.5 µs recovery time (exceeding 35 ns specification). This part is suitable only for applications with fundamentally different electrical and mechanical requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution: The ES1GLW is the appropriate selection for applications currently using the ES1FL. This part maintains electrical equivalence across all critical parameters while offering active production status and extended thermal operating range. The SOD-123W package is mechanically compatible with existing SOD-123 footprints. Both parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

For Alternative Applications: The ES1F should be selected only when application requirements fundamentally differ from the ES1FL specification. This part is suitable for high-voltage, lower-current, through-hole applications where recovery time is not a critical constraint. The ES1F is not a direct substitute due to incompatible mounting technology, reduced current capacity, and significantly slower recovery characteristics.

Compliance Considerations: All three parts maintain compliance with applicable environmental and trade regulations. The ES1GLW and ES1FL both achieve ROHS3 compliance, while ES1F achieves RoHS compliance. Selection should account for specific regulatory requirements of the target application and end market.

Frequently Asked Questions (FAQ)

Q: Can the ES1GLW directly replace the ES1FL in existing designs? A: Yes. The ES1GLW maintains the same 35 ns recovery time, 1 A current rating, and 1.3 V forward voltage as the ES1FL. The SOD-123W package is mechanically compatible with SOD-123 footprints. The higher 400 V reverse voltage rating provides additional design margin without affecting circuit operation at 300 V or below.

Q: What is the primary difference between ES1GLW and ES1FL? A: The ES1GLW provides 400 V reverse voltage capability compared to the ES1FL's 300 V rating. The ES1GLW also features an extended operating temperature range (-55°C to 175°C versus -55°C to 150°C) and active production status. Electrical performance characteristics remain equivalent.

Q: Why is ES1F listed as a similar substitute rather than a direct equivalent? A: The ES1F differs fundamentally in mounting technology (through-hole axial versus surface mount SOD-123), current capacity (500 mA versus 1 A), and recovery time (1.5 µs versus 35 ns). These differences make it unsuitable for direct substitution in applications designed for the ES1FL.

Q: Are there packaging considerations when substituting ES1GLW for ES1FL? A: The SOD-123W package used by ES1GLW is mechanically compatible with SOD-123 footprints. No PCB layout modifications are required. Both packages are surface mount components with equivalent land patterns for standard automated assembly processes.

Q: What compliance certifications apply to these parts? A: The ES1FL and ES1GLW both achieve ROHS3 compliance and REACH unaffected status. The ES1F achieves RoHS compliance. All parts carry EAR99 export classification. Specific regulatory requirements should be verified against target application and end-market standards.

Q: Can ES1F be used in applications where ES1FL is specified? A: No. The ES1F is not suitable for direct substitution. Applications requiring 1 A current capacity, 35 ns recovery time, and surface mount packaging cannot use the ES1F, which provides only 500 mA current, 1.5 µs recovery time, and through-hole mounting.