S8JCHR7G Equivalent & Substitute Parts

Part Overview

The S8JCHR7G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 8 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and production needs. The part exhibits fast recovery characteristics with reverse recovery time ≤ 500 ns and operates across a junction temperature range of -55°C to 150°C.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	8	A
Voltage - Forward (Vf) (Max) @ If	985 mV @ 8 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	10	µA @ 600 V
Capacitance @ Vr, F	48	pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	—
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 S8JCHR7G is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V minimum
Current - Average Rectified (Io): 8 A minimum
Package / Case: DO-214AB, SMC (surface mount)
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
RoHS Status: ROHS3 Compliant

Parametric Equivalent: The S8JC R7G from Taiwan Semiconductor Corporation is a parametric equivalent with identical electrical specifications and packaging. This part differs only in packaging format (Cut Tape versus the original specification) and maintains all critical performance parameters.

Similar Parts (Lower Current Ratings): Parts rated at 3 A or 5 A average rectified current (CFRC305-G, CGRC505-G, CSFC305-G, CURC305-G, ER3J-TP, ES3J, FR3J-TP, MURS360-E3/57T, MURS360-E3/9AT) share the 600 V reverse voltage rating, DO-214AB package, surface mount configuration, and fast recovery characteristics. These parts are suitable for applications where the 8 A current requirement can be reduced or where multiple devices may be paralleled. All listed similar parts maintain ROHS3 compliance and MSL 1 rating.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Speed	Reverse Leakage @ Vr [µA]	Package	Product Status	RoHS Status
S8JCHR7G	Taiwan Semiconductor Corporation	600	8	985 @ 8 A	Fast Recovery ≤ 500ns	10 @ 600 V	DO-214AB, SMC	Discontinued	ROHS3 Compliant
S8JC R7G	Taiwan Semiconductor Corporation	600	8	985 @ 8 A	Fast Recovery ≤ 500ns	10 @ 600 V	DO-214AB, SMC	Discontinued	ROHS3 Compliant
CFRC305-G	Comchip Technology	600	3	1300 @ 3 A	Fast Recovery ≤ 500ns	5 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
CGRC505-G	Comchip Technology	600	5	1150 @ 5 A	Standard Recovery >500ns	10 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
CSFC305-G	Comchip Technology	600	3	1300 @ 3 A	Fast Recovery ≤ 500ns	5 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
CURC305-G	Comchip Technology	600	3	1700 @ 3 A	Fast Recovery ≤ 500ns	5 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
ER3J-TP	Micro Commercial Co	600	3	1700 @ 3 A	Fast Recovery ≤ 500ns	5 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
ES3J	Good-Ark Semiconductor	600	3	1700 @ 3 A	Fast Recovery ≤ 500ns	10 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
FR3J-TP	Micro Commercial Co	600	3	1300 @ 3 A	Fast Recovery ≤ 500ns	10 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
MURS360-E3/57T	Vishay General Semiconductor - Diodes Division	600	3	1280 @ 3 A	Fast Recovery ≤ 500ns	10 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant
MURS360-E3/9AT	Vishay General Semiconductor - Diodes Division	600	3	1280 @ 3 A	Fast Recovery ≤ 500ns	10 @ 600 V	DO-214AB, SMC	Active	ROHS3 Compliant

Engineering Selection Recommendations

Parametric Equivalent Selection: The S8JC R7G maintains identical electrical and thermal specifications to the S8JCHR7G and is the direct parametric equivalent. Both parts are discontinued at DiGi Electronics; however, the S8JC R7G shows higher current inventory (844 Pcs versus 758 Pcs). Selection of this part requires no circuit redesign and provides pin-for-pin compatibility with identical performance characteristics.

Active Part Selection for 8 A Applications: No active parts with 8 A current rating are provided in the substitute list. Applications requiring the full 8 A capability must either source remaining inventory of the S8JCHR7G or S8JC R7G, or implement parallel configurations of lower-rated devices.

Active Part Selection for Reduced Current Applications: For applications where current requirements can be reduced to 3 A or 5 A, the following active parts are available:

CGRC505-G (Comchip Technology): 5 A rating with 600 V reverse voltage, fast recovery characteristics, and active product status. Forward voltage of 1150 mV @ 5 A is lower than the original part at equivalent current density.
MURS360-E3/57T or MURS360-E3/9AT (Vishay General Semiconductor): 3 A rating with 600 V reverse voltage, fast recovery characteristics, and extended operating temperature range (-65°C to 175°C). Forward voltage of 1280 mV @ 3 A and high inventory availability (18,300 and 3,600 Pcs respectively).
ES3J (Good-Ark Semiconductor): 3 A rating with 600 V reverse voltage, fast recovery characteristics, and highest inventory availability (23,710 Pcs). Forward voltage of 1700 mV @ 3 A.

All recommended active parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can the S8JCHR7G be directly replaced with a 3 A rated diode?

A: Direct replacement is not possible if the application requires the full 8 A current capacity. The 3 A rated parts (CFRC305-G, CSFC305-G, CURC305-G, ER3J-TP, ES3J, FR3J-TP, MURS360-E3/57T, MURS360-E3/9AT) are suitable only for applications where the maximum current demand does not exceed 3 A. For applications requiring 5 A to 8 A, the CGRC505-G (5 A) may be considered if current requirements fall within its rating, or multiple devices must be paralleled.

Q: What is the difference between the S8JCHR7G and S8JC R7G?

A: The S8JC R7G is a parametric equivalent with identical electrical specifications, thermal characteristics, and package type (DO-214AB, SMC). The primary difference is packaging format: S8JCHR7G is supplied in standard packaging while S8JC R7G is supplied in Cut Tape (CT) format. Both parts are discontinued at DiGi Electronics.

Q: Are all substitute parts RoHS compliant?

A: Yes. All parts listed in the substitute table maintain ROHS3 compliance and MSL 1 (Unlimited) rating, meeting standard environmental and manufacturing requirements.

Q: What is the significance of fast recovery versus standard recovery speed?

A: The S8JCHR7G features fast recovery with reverse recovery time ≤ 500 ns. Most substitute parts maintain this fast recovery characteristic, with the exception of CGRC505-G, which specifies standard recovery (>500 ns). Fast recovery diodes exhibit lower switching losses and are preferred in high-frequency switching applications. Selection should account for the specific application's switching frequency requirements.

Q: Can parts with different forward voltage ratings be substituted?

A: Forward voltage differences must be evaluated within the context of the specific circuit design. The S8JCHR7G specifies 985 mV @ 8 A. Substitute parts rated at lower currents show forward voltages ranging from 1150 mV to 1700 mV at their respective current ratings. These differences affect power dissipation and circuit performance and must be analyzed for compatibility with the intended application.

Q: What is the operating temperature range consideration for substitution?

A: The S8JCHR7G operates from -55°C to 150°C junction temperature. Most substitute parts operate within -55°C to 150°C, with the exception of MURS360-E3/57T and MURS360-E3/9AT, which extend to -65°C to 175°C. Applications requiring extended temperature operation should select parts with appropriate temperature ratings.

Q: Is the DO-214AB package compatible across all listed parts?

A: Yes. All parts listed use the DO-214AB (SMC) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

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