ES2B R5G Equivalent & Substitute Parts

Part Overview

The ES2B R5G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100 V DC reverse voltage and 2 A average rectified current in a DO-214AA (SMB) surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design requirements and production needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with minor parameter variations within acceptable engineering tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 2 A	mV
Reverse Recovery Time (trr)	35	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	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES2B R5G is determined by the following critical parameters:

Electrical Specifications:

Voltage - DC Reverse (Vr) (Max): 100 V minimum
Current - Average Rectified (Io): 2 A minimum
Voltage - Forward (Vf) (Max) @ If: 950 mV maximum at 2 A
Reverse Recovery Time (trr): 35 ns maximum
Current - Reverse Leakage @ Vr: 10 µA maximum at 100 V

Mechanical Specifications:

Package / Case: DO-214AA (SMB) surface mount
Mounting Type: Surface mount
Operating Temperature - Junction: -55°C to 150°C minimum

Compliance Requirements:

RoHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories: parametric equivalents (identical electrical and mechanical specifications) and similar parts (equivalent voltage and current ratings with minor variations in forward voltage, reverse recovery time, or reverse leakage current). All listed substitutes maintain the DO-214AA (SMB) package form factor and surface mount mounting type, ensuring mechanical compatibility with existing PCB layouts.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	trr [ns]	Ir @ Vr [µA]	Package	Product Status
ES2B R5G	Taiwan Semiconductor Corporation	100	2	950 @ 2A	35	10 @ 100V	DO-214AA (SMB)	Discontinued
ES2B	YAGEO	100	2	950	—	—	DO-214AA (SMB)	Active
ES2BH	Taiwan Semiconductor Corporation	100	2	950 @ 2A	35	10 @ 100V	DO-214AA (SMB)	Active
CGRB202-G	Comchip Technology	100	2	1100 @ 2A	—	5 @ 100V	DO-214AA (SMB)	Active
CSFB202-G	Comchip Technology	100	2	920 @ 2A	35	5 @ 100V	DO-214AA (SMB)	Active
ER1B-LTP	Micro Commercial Co	100	1	950 @ 1A	35	5 @ 100V	DO-214AA (SMB)	Not For New Designs
ES2B-13-F	Diodes Incorporated	100	2	920 @ 2A	25	5 @ 100V	DO-214AA (SMB)	Active
ES2BA-13-F	Diodes Incorporated	100	2	920 @ 2A	25	5 @ 100V	DO-214AC (SMA)	Active
ES2BHE3_A/H	Vishay General Semiconductor - Diodes Division	100	2	900 @ 2A	20	10 @ 50V	DO-214AA (SMB)	Active
ES2BHE3_A/I	Vishay General Semiconductor - Diodes Division	100	2	900 @ 2A	20	10 @ 50V	DO-214AA (SMB)	Active
ESH2B-E3/52T	Vishay General Semiconductor - Diodes Division	100	2	930 @ 2A	35	2 @ 100V	DO-214AA (SMB)	Active

Engineering Selection Recommendations

Primary Equivalent (Parametric Match):

ES2BH (Taiwan Semiconductor Corporation) is the direct parametric equivalent to ES2B R5G. This part maintains identical electrical specifications (100 V, 2 A, 950 mV forward voltage, 35 ns reverse recovery time) and is manufactured by the same supplier. ES2BH is currently active in production and available in volume quantities (747 pcs in stock). This part includes AEC-Q101 automotive qualification, providing enhanced reliability for demanding applications.

Secondary Equivalents (Active Production, Identical Ratings):

ES2B (YAGEO) provides parametric equivalence with 100 V, 2 A ratings and is available in high volume (55,400 pcs in stock). This part is suitable for applications where supplier diversification is required.

Compatible Substitutes (DO-214AA Package, 100 V / 2 A Rating):

The following parts maintain the DO-214AA (SMB) package and 100 V / 2 A electrical ratings with minor parameter variations:

ES2B-13-F (Diodes Incorporated): Forward voltage 920 mV, reverse recovery time 25 ns (improved), reverse leakage 5 µA. Active production status.
CSFB202-G (Comchip Technology): Forward voltage 920 mV, reverse recovery time 35 ns, reverse leakage 5 µA. Active production status.
ES2BHE3_A/H and ES2BHE3_A/I (Vishay General Semiconductor - Diodes Division): Forward voltage 900 mV (improved), reverse recovery time 20 ns (improved), AEC-Q101 automotive qualified. Active production status.
ESH2B-E3/52T (Vishay General Semiconductor - Diodes Division): Forward voltage 930 mV, reverse recovery time 35 ns, reverse leakage 2 µA (improved). Extended operating temperature range to 175°C. Active production status.

Package Variant (Mechanical Substitution Only):

ES2BA-13-F (Diodes Incorporated) provides identical electrical specifications but uses DO-214AC (SMA) package instead of DO-214AA (SMB). This part is suitable only for applications where SMA footprint compatibility exists on the PCB.

Not Recommended for New Designs:

ER1B-LTP (Micro Commercial Co) is rated for 1 A average rectified current, below the 2 A requirement of ES2B R5G. This part is marked "Not For New Designs" and should not be selected for new applications.

Higher Forward Voltage Alternative:

CGRB202-G (Comchip Technology) exhibits forward voltage of 1.1 V at 2 A, which exceeds the 950 mV specification of ES2B R5G. This part is suitable only for applications where forward voltage margin is not critical.

Frequently Asked Questions (FAQ)

Q: Can ES2BH be used as a direct replacement for ES2B R5G?

A: Yes. ES2BH is a parametric equivalent manufactured by Taiwan Semiconductor Corporation with identical electrical specifications (100 V, 2 A, 950 mV forward voltage, 35 ns reverse recovery time) and the same DO-214AA (SMB) package. ES2BH is currently in active production.

Q: What is the difference between parametric equivalents and similar substitutes?

A: Parametric equivalents maintain all electrical and mechanical specifications of the original part. Similar substitutes meet the core voltage and current ratings but may have minor variations in forward voltage, reverse recovery time, or reverse leakage current. All listed substitutes are compatible with the DO-214AA (SMB) package and surface mount assembly process.

Q: Can ES2BA-13-F replace ES2B R5G?

A: ES2BA-13-F provides identical electrical specifications but uses the DO-214AC (SMA) package instead of DO-214AA (SMB). Mechanical compatibility with the existing PCB footprint must be verified before selection. If the PCB is designed for SMB package, this part cannot be used without PCB redesign.

Q: Why is ER1B-LTP listed if it cannot replace ES2B R5G?

A: ER1B-LTP is included for reference purposes only. This part is rated for 1 A average rectified current, which is insufficient for applications requiring 2 A. Additionally, ER1B-LTP is marked "Not For New Designs" and should not be selected for new development.

Q: What is the significance of AEC-Q101 qualification on ES2BH and ES2BHE3 variants?

A: AEC-Q101 qualification indicates that the part meets automotive-grade reliability standards established by the Automotive Electronics Council. Parts with this qualification are suitable for automotive and other high-reliability applications. ES2BH, ES2BHE3_A/H, and ES2BHE3_A/I carry this qualification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and carry Moisture Sensitivity Level (MSL) 1 (Unlimited), matching the compliance profile of ES2B R5G.

Q: What is the difference between ES2BHE3_A/H and ES2BHE3_A/I?

A: Both parts are parametrically identical with 100 V, 2 A ratings, 900 mV forward voltage, 20 ns reverse recovery time, and AEC-Q101 automotive qualification. The suffix designations (_A/H and _A/I) indicate different tape and reel packaging configurations. Selection between these variants depends on packaging and handling requirements for production assembly.

Q: Can CGRB202-G be used if forward voltage is not critical to the application?

A: CGRB202-G exhibits 1.1 V forward voltage at 2 A, which is 150 mV higher than the ES2B R5G specification of 950 mV. This part is suitable only for applications where forward voltage margin is not a design constraint. Thermal dissipation and voltage drop across the diode must be re-evaluated if this part is selected.

Q: What is the advantage of ESH2B-E3/52T over other substitutes?

A: ESH2B-E3/52T offers improved reverse leakage current (2 µA at 100 V compared to 10 µA for ES2B R5G) and an extended operating temperature range to 175°C. These characteristics make this part suitable for high-temperature applications and designs requiring minimal leakage current.

Q: Are all substitute parts available in the same packaging format (Cut Tape and Digi-Reel)?

A: No. ES2B R5G is supplied in Cut Tape (CT) & Digi-Reel® packaging. Most substitute parts are supplied in Tape & Reel (TR) format. Packaging format should be verified with the supplier to ensure compatibility with production assembly equipment and handling procedures.

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