FML-G12S Equivalent & Substitute Parts – Diodes, Rectifiers

Part Overview

The Sanken Electric USA Inc. FML-G12S is a general-purpose standard diode in the Diodes, Rectifiers category. It features a maximum DC reverse voltage of 200 V and a current rating of 5A, with fast recovery performance (trr: 40 ns). Packaged in a TO-220F-2L through-hole case, it is suitable for various power rectification tasks.

This product is listed as Obsolete, making the identification of equivalent and substitute parts necessary to ensure continued supply and maintenance for applications that rely on the FML-G12S form, fit, and functional characteristics.

Substiute Parts

FML-G12S
Sanken Electric USA Inc.In Stock: 20159FML-G12S Datasheet
FML-G12S
Current Part
SFAF2004GHC0G
Taiwan Semiconductor CorporationIn Stock: 1169SFAF2004GHC0G Datasheet
SFAF2004GHC0G
Similar
STTH1502FP
STMicroelectronicsIn Stock: 1259STTH1502FP Datasheet
STTH1502FP
Similar
STTH802FP
STMicroelectronicsIn Stock: 1454STTH802FP Datasheet
STTH802FP
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Key Parameters

ParameterFML-G12S
Voltage - DC Reverse (Vr) (Max)200 V
Current - Average Rectified (Io)5A
Voltage - Forward (Vf) (Max) @ If980 mV @ 5 A
SpeedFast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr)40 ns
Current - Reverse Leakage @ Vr100 µA @ 200 V
Mounting TypeThrough Hole
Package / CaseTO-220-2 Full Pack
Operating Temperature - Junction-40°C ~ 150°C
RoHS StatusRoHS Compliant
MSL1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the FML-G12S are selected by strict equivalence in the following key parameters: maximum DC reverse voltage, current rating, voltage drop at rated current, reverse recovery performance, through-hole mounting form factor, and package compatibility. All listed substitute diodes are in the same category and comply with RoHS, and they meet or exceed all primary electrical and mechanical conditions as explicitly stated.

Key substitution parameters:

  • Voltage - DC Reverse (Vr) (Max): 200 V
  • Current - Average Rectified (Io): ≥ 5A
  • Voltage - Forward (Vf) (Max) @ If: Comparable or better
  • Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
  • Reverse Recovery Time (trr): Comparable or better
  • Mounting Type: Through Hole
  • Package / Case: TO-220 family, full pack
  • Operating Temperature - Junction: Meets or exceeds
  • RoHS status: Compliant

Parameter Comparison

Manufacturer Part Number Manufacturer Voltage - DC Reverse (Vr) (Max) Current - Average Rectified (Io) Voltage - Forward (Vf) (Max) @ If Speed Reverse Recovery Time (trr) Current - Reverse Leakage @ Vr Mounting Type Package / Case Operating Temperature - Junction RoHS Status MSL Product Status
FML-G12S Sanken Electric USA Inc. 200 V 5A 980 mV @ 5 A Fast Recovery ≤ 500ns, >200mA (Io) 40 ns 100 µA @ 200 V Through Hole TO-220-2 Full Pack -40°C ~ 150°C RoHS Compliant 1 (Unlimited) Obsolete
SFAF2004GHC0G Taiwan Semiconductor Corporation 200 V 20A 975 mV @ 20 A Fast Recovery ≤ 500ns, >200mA (Io) 35 ns 10 µA @ 200 V Through Hole TO-220-2 Full Pack -55°C ~ 150°C ROHS3 Compliant 1 (Unlimited) Active
STTH1502FP STMicroelectronics 200 V 15A 1.1 V @ 15 A Fast Recovery ≤ 500ns, >200mA (Io) 36 ns 10 µA @ 200 V Through Hole TO-220-2 Full Pack 175°C (Max) ROHS3 Compliant 1 (Unlimited) Active
STTH802FP STMicroelectronics 200 V 8A 1.05 V @ 8 A Fast Recovery ≤ 500ns, >200mA (Io) 30 ns 6 µA @ 200 V Through Hole TO-220-2 Full Pack, Isolated Tab 175°C (Max) ROHS3 Compliant 1 (Unlimited) Active

Engineering Selection Recommendations

The FML-G12S is designated as Obsolete. Substitute models (SFAF2004GHC0G, STTH1502FP, STTH802FP) are all currently Active and meet RoHS requirements. All substitute diodes share equivalent or superior electrical ratings and packaging form factors. Product status and compliance should be the deciding factors when selecting an alternative.

Frequently Asked Questions (FAQ)

Q: What criteria are used to determine acceptable substitute diodes for the FML-G12S?
A: Acceptable substitutes must match or exceed the voltage and current ratings, offer similar or better forward voltage drop and reverse recovery time, conform to through-hole mounting requirements, and share the TO-220-2 Full Pack or equivalent package.

Q: Are the pinouts and package formats of substitutes compatible with the FML-G12S?
A: Substitute parts are specified in the TO-220-2 Full Pack (or closely compatible TO-220 family/layout) package, supporting direct mechanical and PCB replacement, provided the specific package variations (such as tab isolation) are considered in final assembly.

Q: Do substitute parts require reevaluation of environmental or compliance status?
A: All substitute parts meet RoHS compliance and have Moisture Sensitivity Level (MSL) 1 (Unlimited), aligning with modern environmental and manufacturing standards.

Q: Can substitute parts handle the same or greater electrical load as the FML-G12S?
A: All listed substitute parts have equal or higher DC reverse voltage and average rectified current ratings, confirming suitability for at least the same load as the FML-G12S.

Q: What should be considered regarding operating temperature?
A: Substitute parts offer equal or extended operating junction temperature ranges, ensuring compatibility within or beyond the original specifications.

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