ES1AH Equivalent & Substitute Parts

Part Overview

The ES1AH is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 1 A average rectified current. The device is packaged in DO-214AC (SMA) surface mount configuration and is classified as a fast recovery diode with a reverse recovery time of 35 nanoseconds. The ES1AH holds Active product status and carries AEC-Q101 automotive qualification, making it suitable for automotive and industrial applications requiring reliable rectification at moderate voltage and current levels. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and procurement options while maintaining electrical and mechanical compatibility.

Substiute Parts

ES1AH

Taiwan Semiconductor CorporationIn Stock: 1141ES1AH Datasheet

Current PartRFQ

ES1A_R1_00001

Panjit International Inc.In Stock: 2372ES1A_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ES1AH is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 950 mV @ 1 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 35 ns
• Operating Temperature - Junction: -55°C to 150°C

Mechanical Equivalence Criteria:

• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount

Compliance Equivalence Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must satisfy all electrical parameters, maintain identical package and mounting specifications, and comply with the same environmental and regulatory standards. Secondary parameters such as reverse leakage current and junction capacitance may vary within acceptable ranges without affecting functional substitution.

Parameter Comparison

Engineering Selection Recommendations

ES1AH (Taiwan Semiconductor Corporation)

The ES1AH is the primary reference part with Active product status and AEC-Q101 automotive qualification. This part is suitable for applications requiring automotive-grade reliability and traceability. The ES1AH carries full automotive qualification documentation and is appropriate for safety-critical automotive circuits.

ES1A_R1_00001 (Panjit International Inc.)

The ES1A_R1_00001 is a parametric equivalent substitute with identical electrical performance across all critical specifications. This part maintains Active product status and ROHS3 compliance. The ES1A_R1_00001 exhibits superior performance characteristics in reverse leakage current (1 µA versus 5 µA) and junction capacitance (7 pF versus 16 pF), making it functionally interchangeable in applications where these secondary parameters provide operational benefits. Both parts are surface mount devices in DO-214AC (SMA) packaging with identical thermal and environmental operating ranges.

Selection between these parts is determined by supply chain availability, procurement lead times, and specific application requirements. Both parts satisfy the electrical and mechanical requirements for general-purpose rectification at 50 V, 1 A ratings.

Frequently Asked Questions (FAQ)

Q: Can ES1A_R1_00001 be used as a direct replacement for ES1AH?

A: Yes. The ES1A_R1_00001 is a parametric equivalent with identical voltage rating (50 V), current rating (1 A), forward voltage drop (950 mV @ 1 A), reverse recovery time (35 ns), package type (DO-214AC, SMA), and operating temperature range (-55°C to 150°C). Both parts are ROHS3 compliant with MSL 1 rating.

Q: What are the differences between ES1AH and ES1A_R1_00001?

A: The primary differences are manufacturer (Taiwan Semiconductor versus Panjit International) and secondary electrical characteristics. The ES1A_R1_00001 exhibits lower reverse leakage current (1 µA versus 5 µA at 50 V) and lower junction capacitance (7 pF versus 16 pF at 4 V, 1 MHz). These differences do not affect functional substitution in standard rectification applications.

Q: Are both parts available in the same packaging?

A: Yes. Both ES1AH and ES1A_R1_00001 are packaged in DO-214AC (SMA) surface mount configuration. The ES1AH is supplied in standard packaging, while ES1A_R1_00001 is supplied in Tape & Reel (TR) format. Both are compatible with automated assembly processes.

Q: What is the significance of the AEC-Q101 qualification on ES1AH?

A: AEC-Q101 is an automotive electronics qualification standard. The ES1AH carries this qualification, indicating compliance with automotive reliability and quality requirements. Applications requiring automotive-grade traceability and qualification documentation should specify ES1AH. The ES1A_R1_00001 does not carry explicit AEC-Q101 designation in the provided specifications.

Q: Can these parts be used interchangeably in automotive applications?

A: The ES1AH is qualified to AEC-Q101 automotive standards and is the specified choice for automotive applications requiring formal qualification documentation. The ES1A_R1_00001 is functionally equivalent but does not carry explicit automotive qualification in the provided specifications. Application requirements and qualification mandates determine part selection.

Q: What is the reverse recovery time significance?

A: Both parts have identical reverse recovery time (trr) of 35 nanoseconds, classifying them as fast recovery diodes. This parameter determines switching speed and is critical in high-frequency rectification circuits. The identical specification ensures equivalent performance in switching applications.

Q: Are there any thermal considerations when substituting these parts?

A: Both parts operate across the identical junction temperature range (-55°C to 150°C) and are housed in the same DO-214AC package. Thermal performance is equivalent. PCB layout and thermal management considerations remain unchanged between parts.

Q: What does MSL 1 (Unlimited) mean?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has unlimited shelf life without moisture control measures. Both parts carry this rating, eliminating moisture-related storage and handling constraints.