Equivalent & Substitute Parts Reference: FML-G14S

Part Overview

FML-G14S by Sanken Electric USA Inc. is a general-purpose diode in the Diodes, Rectifiers category, featuring a 400V reverse voltage and 5A average rectified current in a TO-220F-2L through-hole package. Its product status is marked as Omobsolete, which necessitates identifying approved substitute models to maintain device functionality and supply continuity. For obsolete standard diodes, strict parametric equivalency is essential to ensure form, fit, and function are preserved.

Key Parameters

Parameter	FML-G14S Value	Description
Manufacturer	Sanken Electric USA Inc.	Device Manufacturer
Category	Diodes, Rectifiers	Component Type
Package / Case	TO-220-2 Full Pack	Physical Form Factor
Supplier Device Package	TO-220F-2L	Manufacturer Specified Package
Mounting Type	Through Hole	Assembly Method
Voltage - DC Reverse (Vr) (Max)	400 V	Maximum Reverse Voltage Capacity
Current - Average Rectified (Io)	5A	Maximum Continuous Rectified Current
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 5 A	Maximum Forward Voltage Drop at Rated Current
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Recovery Speed Classification
Reverse Recovery Time (trr)	50 ns	Time to Switch from Conducting to Blocking State
Current - Reverse Leakage @ Vr	100 µA @ 400 V	Maximum Leakage Current at Reverse Voltage
Operating Temperature - Junction	-40°C ~ 150°C	Permissible Junction Temperature Range
RoHS Status	RoHS Compliant	Hazardous Substance Certification
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Storage & Handling Rating
Product Status	Obsolete	Lifecycle Stage

Substitute Part Grouping Explanation

Substitution for FML-G14S is strictly based on the following key parameters:

Same manufacturer and category (Sanken Electric USA Inc., Diodes, Rectifiers)
Identical mechanical form factor (TO-220-2 Full Pack, TO-220F-2L, Through Hole)
Exact ratings for reverse voltage (400V), rectified current (5A), and forward voltage drop (1.3V @ 5A)
Comparable fast-recovery specifications within the speed and reverse recovery time parameters
Matching junction operating temperature range, RoHS compliant, and identical moisture sensitivity level

Parts meeting all these criteria, as provided in the parametric equivalent list, are categorized as direct substitutes.

Parameter Comparison

Parameter	FML-G14S	FMX-G14S
Manufacturer	Sanken Electric USA Inc.	Sanken Electric USA Inc.
Category	Diodes, Rectifiers	Diodes, Rectifiers
Package / Case	TO-220-2 Full Pack	TO-220-2 Full Pack
Supplier Device Package	TO-220F-2L	TO-220F-2L
Mounting Type	Through Hole	Through Hole
Voltage - DC Reverse (Vr) (Max)	400 V	400 V
Current - Average Rectified (Io)	5A	5A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 5 A	1.3 V @ 5 A
Speed	Fast Recovery =< 500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)	50 ns	30 ns
Current - Reverse Leakage @ Vr	100 µA @ 400 V	50 µA @ 400 V
Operating Temperature - Junction	-40°C ~ 150°C	-40°C ~ 150°C
RoHS Status	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Obsolete

Engineering Selection Recommendations

Since FML-G14S is designated as obsolete and both FML-G14S and FMX-G14S are RoHS compliant with identical moisture sensitivity levels, either part can be selected strictly based on compliance, product lifecycle status, and form factor compatibility as permitted in this category.

Frequently Asked Questions (FAQ)

Q1: What key parameters define a valid substitute for FML-G14S?
A1: Valid substitutes share identical reverse voltage, average rectified current, forward voltage drop, package type, mounting method, and compliance certifications.

Q2: Is FMX-G14S a compatible mechanical replacement for FML-G14S?
A2: FMX-G14S shares the same TO-220F-2L package and through-hole mounting type as FML-G14S.

Q3: Do recovery time and leakage current differences affect substitution?
A3: Both parts are classified as fast-recovery diodes; recovery time and reverse leakage remain within the specified functional category.

Q4: Are RoHS status and MSL critical in selecting substitutes?
A4: Both FML-G14S and FMX-G14S are RoHS compliant and designated MSL 1 (Unlimited), meeting all regulatory requirements for direct substitution.

Q5: Can substitute parts be used interchangeably in existing PCB layouts?
A5: Mechanical and electrical compatibility allows interchangeable use in layouts designed for TO-220F-2L through-hole diodes within the stated parameters.

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