ES2B/1 Equivalent & Substitute Parts

Part Overview

The ES2B/1 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 100 V DC reverse voltage and 2 A average rectified current in a DO-214AA (SMB) surface mount package. This fast recovery diode with 30 ns reverse recovery time is designed for standard rectification applications requiring efficient switching performance.

The ES2B/1 is classified as an Active product. Equivalent and substitute parts are identified to address component availability, packaging preferences, compliance requirements, or performance optimization in circuit designs where the original specification can be maintained or enhanced.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	900 mV @ 2 A	mV
Reverse Recovery Time (trr)	30	ns
Current - Reverse Leakage @ Vr	10 µA @ 100 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitute parts for the ES2B/1 are grouped into three categories based on substitution logic:

Category 1: Parametric Equivalents (Vishay ES2B Series) These parts maintain identical electrical specifications (100 V, 2 A, 30 ns trr, 900 mV Vf) and package format (DO-214AA SMB). Differences are limited to packaging configuration (Cut Tape, Tape & Reel) and RoHS compliance status. Parts ES2B-E3/52T and ES2B-E3/5BT are ROHS3 compliant alternatives to the non-compliant ES2B/1.

Category 2: Automotive-Grade Equivalents (Vishay ES2BHE3 Series) Parts ES2BHE3_A/H and ES2BHE3_A/I are AEC-Q101 qualified automotive-grade diodes with identical voltage and current ratings. These parts feature improved reverse recovery time (20 ns versus 30 ns) and lower reverse leakage current (10 µA @ 50 V). ROHS3 compliance is provided.

Category 3: Cross-Manufacturer Alternatives Parts from Comchip Technology (CGRB202-G), Diodes Incorporated (ES2B-13-F), and onsemi (MURS210T3G) maintain the 100 V / 2 A core specification and DO-214AA package. Minor variations in forward voltage, reverse recovery time, and reverse leakage current are present. The onsemi MURS110T3G is rated for 1 A (not 2 A) and is listed for reference only where current derating is acceptable.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 100 V (mandatory)
Current - Average Rectified (Io): 2 A (mandatory for full-rating equivalents)
Package / Case: DO-214AA, SMB (mandatory for mechanical compatibility)
Mounting Type: Surface Mount (mandatory)
Speed Classification: Fast Recovery ≤ 500ns (required for switching performance)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	trr [ns]	Ir @ Vr [µA]	Package	RoHS Status	Product Status
ES2B/1	Vishay	100	2	900 @ 2A	30	10 @ 100V	DO-214AA	Non-compliant	Active
ES2B-E3/52T	Vishay	100	2	900 @ 2A	30	10 @ 100V	DO-214AA	ROHS3	Active
ES2B-E3/5BT	Vishay	100	2	900 @ 2A	30	10 @ 100V	DO-214AA	ROHS3	Active
ES2BHE3_A/H	Vishay	100	2	900 @ 2A	20	10 @ 50V	DO-214AA	ROHS3	Active
ES2BHE3_A/I	Vishay	100	2	900 @ 2A	20	10 @ 50V	DO-214AA	ROHS3	Active
CGRB202-G	Comchip Technology	100	2	1100 @ 2A	—	5 @ 100V	DO-214AA	ROHS3	Active
ES2B-13-F	Diodes Incorporated	100	2	920 @ 2A	25	5 @ 100V	DO-214AA	ROHS3	Active
MURS210T3G	onsemi	100	2	940 @ 2A	30	2 @ 100V	DO-214AA	ROHS3	Last Time Buy
MURS110T3G	onsemi	100	1	875 @ 1A	35	2 @ 100V	DO-214AA	ROHS3	Active
S2B	Diotec Semiconductor	100	2	1150 @ 2A	1500	5 @ 100V	DO-214AA	Not applicable	Active
ES2A	YAGEO	50	—	950	—	—	DO-214AA	ROHS3	Active

Engineering Selection Recommendations

Primary Substitutes (Full Electrical and Mechanical Compatibility):

ES2B-E3/52T and ES2B-E3/5BT are direct parametric equivalents to ES2B/1 with identical electrical performance. Both are ROHS3 compliant, addressing regulatory requirements where the original non-compliant part cannot be used. Selection between these two depends on packaging preference: ES2B-E3/52T is supplied in Cut Tape (CT) configuration; ES2B-E3/5BT is supplied in Tape & Reel (TR) configuration for automated assembly.

Enhanced Performance Alternatives (Automotive Grade):

ES2BHE3_A/H and ES2BHE3_A/I are AEC-Q101 qualified alternatives with improved reverse recovery time (20 ns versus 30 ns) and ROHS3 compliance. These parts are suitable for applications requiring automotive-grade reliability or where faster switching performance provides circuit benefits. Both maintain 100 V / 2 A ratings and DO-214AA packaging.

Cross-Manufacturer Alternatives:

ES2B-13-F (Diodes Incorporated) provides ROHS3 compliance with minimal parameter deviation (920 mV Vf, 25 ns trr). This part is suitable where supply chain diversification is required.

MURS210T3G (onsemi) maintains full electrical and mechanical compatibility with improved reverse leakage current (2 µA versus 10 µA). This part is classified as Last Time Buy, indicating limited future availability.

CGRB202-G (Comchip Technology) is rated for 100 V / 2 A but exhibits higher forward voltage (1100 mV versus 900 mV), resulting in increased power dissipation. This part is suitable only where forward voltage margin is not critical.

Not Recommended for Direct Substitution:

S2B (Diotec Semiconductor) features standard recovery speed (1500 ns trr) rather than fast recovery, making it unsuitable for applications requiring fast switching performance.

MURS110T3G (onsemi) is rated for 1 A maximum current, not 2 A. This part is listed for reference only where circuit current requirements can be derated.

ES2A (YAGEO) is rated for 50 V maximum reverse voltage, not 100 V, and is not suitable for 100 V applications.

Frequently Asked Questions (FAQ)

Q: Can ES2B-E3/52T replace ES2B/1 in existing designs?

A: Yes. ES2B-E3/52T is a parametric equivalent with identical electrical specifications (100 V, 2 A, 30 ns trr, 900 mV Vf) and DO-214AA package. The primary difference is ROHS3 compliance versus non-compliance. Packaging is Cut Tape (CT) instead of the original specification. No circuit modifications are required.

Q: What is the difference between ES2B-E3/52T and ES2B-E3/5BT?

A: Both parts are parametric equivalents with identical electrical performance. The difference is packaging configuration: ES2B-E3/52T is supplied in Cut Tape (CT) for manual or semi-automated assembly; ES2B-E3/5BT is supplied in Tape & Reel (TR) for high-volume automated assembly. Selection depends on manufacturing process requirements.

Q: Are the automotive-grade parts (ES2BHE3_A/H and ES2BHE3_A/I) suitable for non-automotive applications?

A: Yes. These AEC-Q101 qualified parts maintain the same 100 V / 2 A electrical ratings and DO-214AA package as ES2B/1. The automotive qualification indicates enhanced reliability testing and process control. The improved reverse recovery time (20 ns versus 30 ns) provides faster switching performance in any application. These parts are suitable for general-purpose use.

Q: Why is MURS210T3G listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer (onsemi) has announced end-of-life for this product. While currently available in inventory (16,820 pcs), future availability is limited. This part should be considered only for applications where long-term supply is not critical, or as a temporary solution pending transition to an alternative part.

Q: Can MURS110T3G be used as a substitute for ES2B/1?

A: MURS110T3G is rated for 1 A maximum current, while ES2B/1 is rated for 2 A. Direct substitution is not recommended for applications requiring 2 A operation. This part is suitable only where circuit current requirements are derated to 1 A or below.

Q: What is the impact of forward voltage differences between substitute parts?

A: Forward voltage (Vf) determines power dissipation in the diode. ES2B/1 is specified at 900 mV @ 2 A. Substitute parts with higher Vf (such as CGRB202-G at 1100 mV or S2B at 1150 mV) dissipate more power and generate more heat. In high-current or high-frequency applications, this may require thermal management review. Substitute parts with lower or similar Vf (ES2B-13-F at 920 mV, MURS210T3G at 940 mV) have minimal impact on circuit performance.

Q: Is RoHS compliance mandatory for my application?

A: RoHS compliance is a regulatory requirement in specific markets and applications. ES2B/1 is RoHS non-compliant. If your application or supply chain requires RoHS3 compliance, select from ES2B-E3/52T, ES2B-E3/5BT, ES2BHE3_A/H, ES2BHE3_A/I, CGRB202-G, ES2B-13-F, MURS210T3G, or MURS110T3G. All listed alternatives except S2B and ES2A are ROHS3 compliant.

Q: What is the significance of reverse recovery time (trr) in diode selection?

A: Reverse recovery time is the interval required for a diode to transition from forward conduction to reverse blocking when the applied voltage reverses. Shorter trr reduces switching losses and electromagnetic interference (EMI) in switching applications. ES2B/1 specifies 30 ns trr (fast recovery). Substitute parts with equal or shorter trr (ES2BHE3_A/H and ES2BHE3_A/I at 20 ns, ES2B-13-F at 25 ns, MURS210T3G at 30 ns) are directly compatible. Parts with significantly longer trr (S2B at 1500 ns) are unsuitable for fast switching applications.

Q: Can I use ES2A as a substitute?

A: No. ES2A is rated for 50 V maximum reverse voltage, while ES2B/1 is rated for 100 V. Using a 50 V diode in a 100 V application results in diode failure and circuit malfunction. ES2A is not suitable for direct substitution.

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