FMG-G2CS Equivalent & Substitute Parts Reference

Part Overview

FMG-G2CS, manufactured by Sanken Electric USA Inc., is a standard fast-recovery general-purpose diode rated for 1000 V and 3A continuous current, housed in a TO-220F-2L through-hole package. The part is classified as obsolete; new original stock is limited to inventory. Sourcing alternative models is necessary for continued production, maintenance, or design cycles where new procurement or reliability is required.

Substiute Parts

FMG-G2CS
Sanken Electric USA Inc.In Stock: 8307FMG-G2CS Datasheet
FMG-G2CS
Current Part
STTH512FP
STMicroelectronicsIn Stock: 16130STTH512FP Datasheet
STTH512FP
Similar
STTH810FP
STMicroelectronicsIn Stock: 1859STTH810FP Datasheet
STTH810FP
Similar

Key Parameters

Parameter FMG-G2CS
Technology Standard
Voltage - DC Reverse (Vr) (Max) 1000 V
Current - Average Rectified (Io) 3A
Voltage - Forward (Vf) (Max) @ If 4 V @ 3 A
Speed Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr) 100 ns
Current - Reverse Leakage @ Vr 50 µA @ 1000 V
Mounting Type Through Hole
Package / Case TO-220-2 Full Pack
Supplier Device Package TO-220F-2L
Operating Temperature - Junction -40°C ~ 150°C
RoHS Status RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for FMG-G2CS in the diodes, rectifiers category is determined by strict alignment in the following allowed parameters: technology (standard diode), DC reverse voltage (Vr), average rectified current (Io), maximum forward voltage (Vf), recovery speed, reverse recovery time (trr), reverse leakage current, mounting type, package/case, and compliance certifications. Substitute diodes must match or exceed these specifications for reliable equivalence and mechanical compatibility.

Parameter Comparison

Parameter FMG-G2CS STTH512FP STTH810FP
Technology Standard Standard Standard
Voltage - DC Reverse (Vr) (Max) 1000 V 1200 V 1000 V
Current - Average Rectified (Io) 3A 5A 8A
Voltage - Forward (Vf) (Max) @ If 4 V @ 3 A 2.2 V @ 5 A 2 V @ 8 A
Speed Fast Recovery =< 500ns, > 200mA (Io) Fast Recovery =< 500ns, > 200mA (Io) Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr) 100 ns 95 ns 85 ns
Current - Reverse Leakage @ Vr 50 µA @ 1000 V 5 µA @ 1200 V 5 µA @ 1000 V
Mounting Type Through Hole Through Hole Through Hole
Package / Case TO-220-2 Full Pack TO-220-2 Full Pack, Isolated Tab TO-220-2 Full Pack, Isolated Tab
Supplier Device Package TO-220F-2L TO-220FPAC TO-220FPAC
Operating Temperature - Junction -40°C ~ 150°C 175°C (Max) 175°C (Max)
RoHS Status RoHS Compliant ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited) 1 (Unlimited)

Engineering Selection Recommendations

FMG-G2CS is specified as obsolete and its available stock is finite. Both STTH512FP and STTH810FP are classified as active products, available in new original inventory, and compliant with ROHS3 and unrestricted moisture sensitivity level (MSL 1). These substitute rectifier diodes meet or exceed the main part’s certifications and compliance criteria. Selection of substitutes should be based on alignment with electrical performance, mechanical fit, and certified compliance status provided.

Frequently Asked Questions (FAQ)

Q1: What electrical characteristics must match for substitution?
A: Substitute diodes must provide equal or higher ratings for voltage (Vr), average current (Io), and equal or faster reverse recovery time (trr). Technology type (standard) and forward voltage (Vf) also must match within provided specifications.

Q2: Are package or mounting differences a factor in compatibility?
A: All listed substitutes use a through-hole mounting type and compatible TO-220 full-pack cases; mechanical compatibility should be verified for board layout and pin assignments based strictly on supplied package/case and supplier device package data.

Q3: Is RoHS compliance maintained in the substitute parts?
A: All comparison parts, including substitutes STTH512FP and STTH810FP, are identified as RoHS or ROHS3 compliant with unrestricted moisture sensitivity level.

Q4: Does product status affect substitution suitability?
A: FMG-G2CS is noted as obsolete, whereas STTH512FP and STTH810FP are listed as active, indicating ongoing manufacturing and availability for future sourcing needs.

Q5: How does reverse leakage current impact substitution?
A: Substitute parts show equal or lower reverse leakage current under specified conditions, which satisfies the equivalence criterion as presented in the allowed parameters.

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