HS2B R5G Equivalent & Substitute Parts

Part Overview

The HS2B 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 classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement. The diode features fast recovery characteristics with a 50 ns reverse recovery time, making it suitable for standard rectification applications requiring moderate switching speeds.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1	V @ 2 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the HS2B R5G is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AA (SMB) surface mount
Mounting Type: Surface Mount
Technology: Standard rectifier diode

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: ≤ 1.1 V @ 2 A
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr): ≤ 50 ns
Current - Reverse Leakage @ Vr: ≤ 10 µA @ 100 V
Operating Temperature - Junction: -55°C minimum to 150°C minimum

Substitute parts are grouped into three categories: Parametric Equivalent (identical specifications), Direct Manufacturer (alternative manufacturers with equivalent ratings), and Similar (functionally compatible with minor parameter variations within acceptable engineering tolerances).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	trr [ns]	Ir @ Vr [µA]	Package	Product Status	Inventory [Pcs]
HS2B R5G	Taiwan Semiconductor Corporation	100	2	1 @ 2	50	5 @ 100V	DO-214AA (SMB)	Discontinued	724
HS2B	Taiwan Semiconductor Corporation	100	2	1 @ 2	50	5 @ 100V	DO-214AA (SMB)	Active	15400
CGRB202-G	Comchip Technology	100	2	1.1 @ 2	—	5 @ 100V	DO-214AA (SMB)	Active	16075
CURB202-G	Comchip Technology	100	2	1 @ 2	50	5 @ 100V	DO-214AA (SMB)	Active	730
ES2B-13-F	Diodes Incorporated	100	2	0.92 @ 2	25	5 @ 100V	DO-214AA (SMB)	Active	2163
ES2BA-13-F	Diodes Incorporated	100	2	0.92 @ 2	25	5 @ 100V	DO-214AC (SMA)	Active	34605
ES2BHE3_A/H	Vishay General Semiconductor - Diodes Division	100	2	0.9 @ 2	20	10 @ 50V	DO-214AA (SMB)	Active	3350
ES2BHE3_A/I	Vishay General Semiconductor - Diodes Division	100	2	0.9 @ 2	20	10 @ 50V	DO-214AA (SMB)	Active	7501
ESH2B-E3/52T	Vishay General Semiconductor - Diodes Division	100	2	0.93 @ 2	35	2 @ 100V	DO-214AA (SMB)	Active	10200
ESH2B-E3/5BT	Vishay General Semiconductor - Diodes Division	100	2	0.93 @ 2	35	2 @ 100V	DO-214AA (SMB)	Active	10300
ESH2B-M3/52T	Vishay General Semiconductor - Diodes Division	100	2	0.93 @ 2	35	2 @ 100V	DO-214AA (SMB)	Active	681

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement): The HS2B (base part number, active status) from Taiwan Semiconductor Corporation is the direct parametric equivalent to the HS2B R5G. This part maintains identical electrical specifications and packaging, with significantly higher inventory availability (15,400 units). Both parts are ROHS3 compliant and REACH unaffected.

Direct Manufacturer Alternatives (Comchip Technology): CURB202-G provides exact parameter matching to the HS2B R5G across all critical specifications including forward voltage, reverse recovery time, and reverse leakage current. CGRB202-G is functionally equivalent with a marginally higher forward voltage specification (1.1 V vs. 1 V @ 2 A), which remains within acceptable rectifier diode tolerances for most applications. Both Comchip parts are active products with substantial inventory.

Similar Alternatives (Diodes Incorporated & Vishay): ES2B-13-F and ES2BA-13-F from Diodes Incorporated offer improved performance characteristics with lower forward voltage (0.92 V) and faster reverse recovery time (25 ns). ES2BA-13-F uses a DO-214AC (SMA) package rather than DO-214AA (SMB), requiring PCB layout modification. Both are ROHS3 compliant and active products.

Vishay General Semiconductor parts (ES2BHE3_A/H, ES2BHE3_A/I, ESH2B-E3/52T, ESH2B-E3/5BT, ESH2B-M3/52T) provide enhanced performance with lower reverse leakage current (2–10 µA) and faster recovery times (20–35 ns). ES2BHE3 variants include AEC-Q101 automotive qualification. All Vishay parts are ROHS3 compliant and active products with high inventory levels.

Product Status Consideration: All substitute parts listed are active products with confirmed inventory availability, eliminating procurement risk associated with the discontinued HS2B R5G status.

Frequently Asked Questions (FAQ)

Q: Can the HS2B (active) be used as a direct replacement for the HS2B R5G (discontinued)?

A: Yes. The HS2B is the parametric equivalent with identical electrical specifications (100 V, 2 A, 1 V forward voltage, 50 ns reverse recovery time) and DO-214AA (SMB) packaging. The only difference is product status (active vs. discontinued).

Q: What is the difference between DO-214AA (SMB) and DO-214AC (SMA) packages?

A: DO-214AA (SMB) and DO-214AC (SMA) are distinct surface mount packages with different footprints and lead configurations. ES2BA-13-F uses SMA packaging and requires different PCB layout compared to SMB-packaged alternatives. Direct footprint compatibility is not possible without PCB redesign.

Q: Are Comchip Technology CGRB202-G and CURB202-G interchangeable with the HS2B R5G?

A: Both Comchip parts are functionally equivalent. CURB202-G matches all specifications exactly. CGRB202-G has a forward voltage specification of 1.1 V (vs. 1 V), which is within acceptable rectifier diode operating margins for standard applications.

Q: What performance advantages do Vishay ES2BHE3 and ESH2B parts offer?

A: Vishay parts provide lower reverse leakage current (2–10 µA vs. 5 µA) and faster reverse recovery times (20–35 ns vs. 50 ns). ES2BHE3 variants include AEC-Q101 automotive qualification. These characteristics improve efficiency and switching performance in high-frequency applications.

Q: Is RoHS3 compliance maintained across all substitute parts?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the HS2B R5G.

Q: Which substitute part has the highest inventory availability?

A: ES2BA-13-F from Diodes Incorporated has the highest inventory at 34,605 units. However, this part uses DO-214AC (SMA) packaging rather than DO-214AA (SMB), requiring PCB layout modification. For SMB-packaged alternatives, ESH2B-E3/5BT and ESH2B-E3/52T from Vishay each have 10,300 and 10,200 units respectively.

Q: Can I use ES2B-13-F (SMB) instead of ES2BA-13-F (SMA) to avoid PCB redesign?

A: Yes. ES2B-13-F maintains the DO-214AA (SMB) package footprint compatible with HS2B R5G designs while providing the same improved electrical performance (0.92 V forward voltage, 25 ns reverse recovery time) as the SMA variant.

Q: What is the operating temperature range for substitute parts?

A: Most substitute parts operate from -55°C to 150°C, matching the HS2B R5G. ESH2B variants from Vishay extend to -55°C to 175°C, providing wider temperature margin for high-temperature applications.

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