HS2G R5G Equivalent & Substitute Parts

Part Overview

The HS2G R5G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 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 production and maintenance applications. The diode features fast recovery characteristics with a 50 ns reverse recovery time, forward voltage of 1.3 V at 2 A, and operates across a junction temperature range of -55°C to 150°C. RoHS3 compliance and MSL 1 rating support deployment in standard industrial and commercial environments.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 2 A	V
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
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 HS2G R5G is determined by strict electrical and mechanical compatibility across the following critical parameters:

Mandatory Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C minimum

Performance Parameters Affecting Substitution:

Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 2 A (primary specification)
Reverse Recovery Time (trr): 50 ns (fast recovery classification)
Current - Reverse Leakage @ Vr: 5 µA @ 400 V

Substitute parts are grouped into three categories based on electrical performance alignment:

Category 1 - Direct Parametric Equivalents: Parts matching all electrical specifications including forward voltage, reverse recovery time, and reverse leakage current. These include ES2G R5G, ES2GH, ES2LG, ES2LGH, and HS2G (Good-Ark Semiconductor variant).

Category 2 - Functional Equivalents with Acceptable Variations: Parts meeting voltage, current, and package requirements with minor deviations in reverse recovery time or leakage current. RS2G exhibits 150 ns reverse recovery time (slower than the 50 ns specification) but maintains identical voltage and current ratings.

Category 3 - Performance-Optimized Alternatives: Parts such as CURB204-G (Comchip Technology) matching fast recovery specifications and electrical ratings. CGRB204-G and CGRB304-G represent alternative manufacturers with different recovery speed classifications or current ratings.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Product Status
HS2G R5G	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	50	5 @ 400 V	DO-214AA, SMB	Discontinued at DiGi Electronics
ES2G	YAGEO	400	2	1.3	—	DO-214AA, SMB	Active
ES2G R5G	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	35	10 @ 400 V	DO-214AA, SMB	Discontinued at DiGi Electronics
ES2GH	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	35	10 @ 400 V	DO-214AA, SMB	Active
ES2LG	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	35	10 @ 400 V	DO-214AA, SMB	Active
ES2LGH	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	35	10 @ 400 V	DO-214AA, SMB	Active
HS2G	Good-Ark Semiconductor	400	2	1.3 @ 2 A	50	5 @ 400 V	DO-214AA, SMB	Active
RS2G	Taiwan Semiconductor Corporation	400	2	1.3 @ 2 A	150	5 @ 400 V	DO-214AA, SMB	Active
CURB204-G	Comchip Technology	400	2	1.3 @ 2 A	50	5 @ 400 V	DO-214AA, SMB	Active
CGRB204-G	Comchip Technology	400	2	1.1 @ 2 A	—	DO-214AA, SMB	Active
CGRB304-G	Comchip Technology	400	3	1.1 @ 3 A	—	DO-214AA, SMB	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Specification Match):

ES2GH and ES2LGH are recommended as primary substitutes. Both parts are manufactured by Taiwan Semiconductor Corporation, maintain active product status, and meet all electrical specifications of the HS2G R5G. ES2GH and ES2LGH feature AEC-Q101 automotive qualification, providing enhanced reliability documentation for applications requiring automotive-grade components. Both are RoHS3 compliant with MSL 1 rating. The 35 ns reverse recovery time represents an improvement over the original 50 ns specification, with acceptable reverse leakage current of 10 µA at 400 V.

Secondary Substitutes (Active Status, Acceptable Variations):

HS2G (Good-Ark Semiconductor) provides an exact electrical match to the original part with identical 50 ns reverse recovery time and 5 µA reverse leakage current. This part is currently in active production status with 2,600 units available in inventory.

CURB204-G (Comchip Technology) offers identical electrical performance to the original HS2G R5G, including 50 ns reverse recovery time and 5 µA reverse leakage current at 400 V. This part is active with 3,787 units in stock.

Functional Alternatives (Performance Trade-offs):

RS2G (Taiwan Semiconductor Corporation) is suitable for applications where switching speed is not critical. This part exhibits 150 ns reverse recovery time compared to the 50 ns specification, but maintains identical voltage, current, and forward voltage ratings. RS2G is active with 15,365 units in inventory, providing high availability.

CGRB204-G (Comchip Technology) operates with standard recovery speed (>500 ns) and exhibits lower forward voltage of 1.1 V at 2 A compared to the 1.3 V specification. This part is suitable for applications prioritizing reduced forward voltage drop over fast recovery characteristics.

Not Recommended:

CGRB304-G is rated for 3 A average rectified current, exceeding the 2 A specification of the original part. This device is not suitable as a direct substitute due to different current rating.

Frequently Asked Questions (FAQ)

Q: Can ES2GH be used as a direct replacement for HS2G R5G?

A: Yes. ES2GH meets all mandatory electrical specifications: 400 V reverse voltage, 2 A average rectified current, 1.3 V forward voltage at 2 A, and DO-214AA SMB package. The 35 ns reverse recovery time is faster than the original 50 ns specification, which is acceptable for fast recovery applications. Both parts are RoHS3 compliant with MSL 1 rating and operate across -55°C to 150°C junction temperature range.

Q: What is the difference between ES2GH and ES2LGH?

A: Both parts are electrically identical with matching 400 V, 2 A, 1.3 V forward voltage, and 35 ns reverse recovery time specifications. ES2LGH includes AEC-Q101 automotive qualification, making it suitable for automotive applications requiring enhanced reliability documentation. Both are available in Tape & Reel packaging and are currently in active production.

Q: Why does RS2G have a different reverse recovery time?

A: RS2G is classified as a standard recovery diode with 150 ns reverse recovery time, compared to the 50 ns fast recovery specification of HS2G R5G. This difference affects switching speed in high-frequency applications. RS2G is suitable for lower-frequency rectification circuits where switching speed is not critical, but not recommended for applications requiring fast recovery performance.

Q: Is CGRB204-G a suitable substitute?

A: CGRB204-G matches the 400 V, 2 A, and DO-214AA SMB package specifications. However, it exhibits 1.1 V forward voltage at 2 A compared to the 1.3 V specification, and operates with standard recovery speed (>500 ns) rather than fast recovery. CGRB204-G is suitable only for applications where reduced forward voltage drop is prioritized over fast recovery characteristics.

Q: Can CGRB304-G replace HS2G R5G?

A: No. CGRB304-G is rated for 3 A average rectified current, which exceeds the 2 A specification of HS2G R5G. This part is not a suitable substitute due to different current rating and would not provide equivalent performance in circuits designed for 2 A operation.

Q: What packaging options are available for substitute parts?

A: All substitute parts listed are available in DO-214AA (SMB) surface mount package, matching the original HS2G R5G package specification. Packaging formats vary between manufacturers: YAGEO ES2G is available in Tape & Reel; Taiwan Semiconductor Corporation parts (ES2G R5G, ES2GH, ES2LG, ES2LGH, RS2G) are available in Tape & Reel or Cut Tape; Comchip Technology parts (CURB204-G, CGRB204-G, CGRB304-G) are available in Tape & Reel.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the environmental compliance profile of the original HS2G R5G.

Q: Which substitute offers the best availability?

A: RS2G (Taiwan Semiconductor Corporation) offers the highest inventory availability with 15,365 units in stock. ES2GH provides 9,400 units, and CURB204-G provides 3,787 units. Availability should be verified with current suppliers for time-sensitive applications.

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