S1GLR2G Equivalent & Substitute Parts

Part Overview

The S1GLR2G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package (DO-219AB). This component is classified as discontinued at DiGi Electronics, indicating it is no longer actively stocked through primary distribution channels. The part operates across a junction temperature range of -55°C to 175°C and complies with RoHS3 and REACH regulations. Due to its discontinued status, equivalent substitute parts with identical electrical and mechanical specifications are available from the same manufacturer to support ongoing production and repair requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	5 @ 400 V	µA
Capacitance @ Vr, F	9 @ 4V, 1MHz	pF
Package / Case	DO-219AB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 175	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S1GLR2G is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute parts listed below share identical specifications in the following key areas:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
Reverse Recovery Time (trr): 1.8 µs
Current - Reverse Leakage @ Vr: 5 µA @ 400 V
Capacitance @ Vr, F: 9 pF @ 4V, 1MHz
Package / Case: DO-219AB (Sub SMA)
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 175°C
Technology: Standard
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts are manufactured by Taiwan Semiconductor Corporation and maintain full compatibility with applications designed for the S1GLR2G. Differences in product status and packaging format (Tape & Reel versus individual units) do not affect electrical or mechanical interchangeability.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Mounting	Tj Range [°C]	Product Status	Inventory [Pcs]
S1GLR2G	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Discontinued at DiGi Electronics	898
S1GL M2G	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	1126
S1GL	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Not For New Designs	30400
S1GL MHG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	874
S1GL MTG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	807
S1GL RFG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	915
S1GL RHG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	945
S1GL RQG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	861
S1GL RTG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	895
S1GL RUG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	976
S1GL RVG	Taiwan Semiconductor Corporation	400	1	1.1 @ 1 A	1.8	5 @ 400 V	DO-219AB	Surface Mount	-55 to 175	Active	942

Engineering Selection Recommendations

The S1GLR2G is discontinued at DiGi Electronics and classified as no longer actively distributed. For new procurement, the following active substitute parts are recommended based on product status and regulatory compliance:

Primary Substitutes (Active Status):

S1GL M2G: Active product status with 1126 units in inventory. Identical electrical and mechanical specifications. Recommended for immediate replacement in production environments.
S1GL MHG: Active product status with 874 units in inventory. Full parametric equivalence to S1GLR2G.
S1GL MTG: Active product status with 807 units in inventory. Full parametric equivalence to S1GLR2G.
S1GL RFG: Active product status with 915 units in inventory. Full parametric equivalence to S1GLR2G.
S1GL RHG: Active product status with 945 units in inventory. Full parametric equivalence to S1GLR2G.
S1GL RQG: Active product status with 861 units in inventory. Full parametric equivalence to S1GLR2G.
S1GL RTG: Active product status with 895 units in inventory. Full parametric equivalence to S1GLR2G.
S1GL RUG: Active product status with 976 units in inventory. Available in Tape & Reel packaging format. Full parametric equivalence to S1GLR2G.
S1GL RVG: Active product status with 942 units in inventory. Full parametric equivalence to S1GLR2G.

Secondary Substitute (Not For New Designs):

S1GL: Not recommended for new designs. Highest inventory availability (30400 units). Suitable only for legacy system maintenance or repair applications where the original part number is unavailable.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. Surface mount installation and DO-219AB package compatibility are preserved across all alternatives.

Frequently Asked Questions (FAQ)

Q: Can S1GL M2G be used as a direct replacement for S1GLR2G in production?

A: Yes. S1GL M2G is electrically and mechanically identical to S1GLR2G across all specified parameters. The part is active and carries higher inventory availability (1126 units). It is suitable for direct substitution in production environments.

Q: What is the difference between S1GL RUG and other S1GL variants?

A: S1GL RUG is supplied in Tape & Reel (TR) packaging format, whereas most other variants are supplied in standard packaging. All variants share identical electrical specifications and DO-219AB package geometry. Selection between variants depends on assembly process requirements and packaging format compatibility.

Q: Why is S1GL marked as "Not For New Designs"?

A: S1GL carries a "Not For New Designs" status, indicating it is a legacy product line. While electrically equivalent to S1GLR2G, it is intended for maintenance and repair of existing systems only. Active alternatives such as S1GL M2G, S1GL RFG, or S1GL RHG are preferred for new product development.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original S1GLR2G.

Q: Can substitute parts be mixed in the same assembly?

A: Yes. All substitute parts are parametrically equivalent and interchangeable. They share identical electrical characteristics, forward voltage drop, reverse recovery time, and thermal operating range. Assembly processes and PCB layouts designed for S1GLR2G require no modification.

Q: What is the moisture sensitivity level for substitute parts?

A: All substitute parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under standard storage conditions. No special moisture control measures are required during handling or storage.

Q: Is the DO-219AB package identical across all parts?

A: Yes. All parts use the DO-219AB package (Sub SMA surface mount). PCB footprints, solder pad layouts, and component placement are identical. No design changes are required when substituting between listed parts.

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