RSFJL R3G Equivalent & Substitute Parts

Part Overview

The RSFJL R3G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 500 mA average rectified current in a Sub SMA surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing production and repair applications. Equivalent alternatives maintain identical electrical specifications and mechanical compatibility while offering active product status or improved availability.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	600 V
Current - Average Rectified (Io)	500 mA
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 500 mA
Reverse Recovery Time (trr)	250 ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V
Capacitance @ Vr, F	4 pF @ 4 V, 1 MHz
Package / Case	DO-219AB
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RSFJL R3G is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 500 mA
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 500 mA
Reverse Recovery Time (trr): 250 ns
Current - Reverse Leakage @ Vr: 5 µA @ 600 V
Capacitance @ Vr, F: 4 pF @ 4 V, 1 MHz

Mechanical Equivalence Criteria:

Package / Case: DO-219AB
Supplier Device Package: Sub SMA
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C ~ 150°C

Compliance Equivalence Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain full parametric equivalence across electrical, mechanical, and compliance specifications. The RSFJL base series encompasses multiple manufacturing variants identified by suffix designations (M2G, MHG, MQG, MTG, RFG, RHG, RQG, RTG, RUG) that share identical rated specifications and package configurations.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr	Ir @ Vr	Package	Product Status	Inventory (Pcs)
RSFJL R3G	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Discontinued at DiGi Electronics	1068
RSFJL	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	500 ns	5 µA @ 600 V	DO-219AB	Not For New Designs	12300
RSFJL M2G	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	719
RSFJL MHG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	1168
RSFJL MQG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	685
RSFJL MTG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	741
RSFJL RFG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	1087
RSFJL RHG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	822
RSFJL RQG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	1040
RSFJL RTG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	15600
RSFJL RUG	Taiwan Semiconductor Corporation	600 V	500 mA	1.3 V @ 500 mA	250 ns	5 µA @ 600 V	DO-219AB	Active	710

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The RSFJL M2G, RSFJL MHG, RSFJL MQG, RSFJL MTG, RSFJL RFG, RSFJL RHG, RSFJL RQG, RSFJL RTG, and RSFJL RUG are direct parametric equivalents with active product status. These variants maintain identical electrical performance and mechanical compatibility with the RSFJL R3G. Selection among active variants should prioritize availability and supply chain requirements. RSFJL RTG offers the highest inventory level at 15,600 pieces.

Secondary Substitute (Not For New Designs):

The RSFJL base part number is available with 12,300 pieces in inventory but carries "Not For New Designs" status. This variant exhibits a reverse recovery time (trr) of 500 ns, which differs from the RSFJL R3G specification of 250 ns. This part is suitable only for legacy system maintenance where the extended recovery time does not impact circuit performance.

Compliance Verification:

All substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols. All parts are REACH Unaffected and classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can RSFJL M2G, MHG, MQG, MTG, RFG, RHG, RQG, RTG, and RUG be used interchangeably with RSFJL R3G?

A: Yes. These parts are parametric equivalents with identical voltage ratings (600 V), current ratings (500 mA), forward voltage (1.3 V @ 500 mA), reverse recovery time (250 ns), reverse leakage current (5 µA @ 600 V), and package configuration (DO-219AB Sub SMA). All are ROHS3 compliant with MSL Level 1 rating.

Q: What is the difference between RSFJL R3G and the base RSFJL part?

A: The primary difference is reverse recovery time (trr). RSFJL R3G specifies 250 ns, while the base RSFJL part specifies 500 ns. The base RSFJL also carries "Not For New Designs" status. All other electrical and mechanical parameters are identical.

Q: Are there packaging differences among the substitute variants?

A: All substitute parts use DO-219AB package with Sub SMA supplier device package designation. RSFJL RUG is supplied in Tape & Reel (TR) format. Other variants do not specify packaging format in the provided data. Mounting type is Surface Mount for all variants.

Q: Which substitute part offers the best availability?

A: RSFJL RTG provides the highest inventory level at 15,600 pieces and maintains active product status, making it the optimal choice for applications requiring immediate availability.

Q: Are all substitutes suitable for new designs?

A: All RSFJL variants with active product status (M2G, MHG, MQG, MTG, RFG, RHG, RQG, RTG, RUG) are suitable for new designs. The base RSFJL part carries "Not For New Designs" designation and should be used only for legacy system support.

Q: Do the substitute parts meet the same temperature operating range?

A: Yes. All substitute parts operate across the junction temperature range of -55°C to 150°C, matching the RSFJL R3G specification.

Q: What compliance certifications apply to all substitute parts?

A: All parts are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99. Moisture Sensitivity Level is 1 (Unlimited) for all variants.

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