SS2FL4HM3/I Equivalent & Substitute Parts

Part Overview

The SS2FL4HM3/I is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, classified within the Diodes, Rectifiers category. This surface mount component operates at 40V DC reverse voltage with a 2A average rectified current rating and is packaged in DO-219AB (SMF) format on Tape & Reel (TR) carrier. The part maintains Active product status and carries automotive-grade qualification under AEC-Q101 standards. Equivalent and substitute parts are identified to provide design flexibility for procurement, inventory management, and supply chain continuity while maintaining identical electrical and mechanical performance characteristics.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	580 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	220 µA @ 40 V
Capacitance @ Vr, F	125pF @ 4V, 1MHz
Package / Case	DO-219AB
Operating Temperature - Junction	-55°C ~ 150°C
Technology	Schottky
Grade	Automotive
Qualification	AEC-Q101
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the SS2FL4HM3/I are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 580 mV @ 2 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 220 µA @ 40 V
Capacitance @ Vr, F: 125pF @ 4V, 1MHz
Package / Case: DO-219AB
Operating Temperature - Junction: -55°C ~ 150°C
Technology: Schottky
Manufacturer: Vishay General Semiconductor - Diodes Division
Series: eSMP®
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts may differ in packaging format (Tape & Reel versus Cut Tape & Digi-Reel®) and automotive qualification status, provided all electrical parameters and physical package dimensions remain equivalent. All substitute parts listed maintain Active product status.

Parameter Comparison

Parameter	SS2FL4HM3/I (Main)	SS2FL4-M3/H (Substitute)	SS2FL4HM3/H (Substitute)
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Diodes, Rectifiers	Diodes, Rectifiers	Diodes, Rectifiers
Technology	Schottky	Schottky	Schottky
Series	eSMP®	eSMP®	eSMP®
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V
Current - Average Rectified (Io)	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	580 mV @ 2 A	580 mV @ 2 A	580 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	220 µA @ 40 V	220 µA @ 40 V	220 µA @ 40 V
Capacitance @ Vr, F	125pF @ 4V, 1MHz	125pF @ 4V, 1MHz	125pF @ 4V, 1MHz
Package / Case	DO-219AB	DO-219AB	DO-219AB
Supplier Device Package	DO-219AB (SMF)	DO-219AB (SMF)	DO-219AB (SMF)
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Grade	Automotive	Not specified	Automotive
Qualification	AEC-Q101	Not specified	AEC-Q101
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three parts—SS2FL4HM3/I, SS2FL4-M3/H, and SS2FL4HM3/H—are electrically and mechanically equivalent Schottky rectifier diodes with identical performance specifications. Selection between these parts is determined by packaging and qualification requirements:

SS2FL4HM3/I (Primary Part): Supplied on Tape & Reel (TR) carrier with automotive-grade qualification and AEC-Q101 certification. Suitable for high-volume automated assembly processes requiring automotive-qualified components.

SS2FL4-M3/H (Substitute): Supplied on Cut Tape (CT) & Digi-Reel® carrier without specified automotive grade or AEC-Q101 qualification. Suitable for applications where automotive qualification is not required and flexible packaging formats are acceptable. Higher inventory availability (23,423 pcs) supports rapid procurement.

SS2FL4HM3/H (Substitute): Supplied on Tape & Reel (TR) carrier with automotive-grade qualification and AEC-Q101 certification. Functionally identical to SS2FL4HM3/I with equivalent packaging format and compliance profile. Higher inventory availability (23,581 pcs) supports procurement flexibility.

All parts maintain Active product status, ROHS3 compliance, and REACH Unaffected status. Selection should be based on packaging format requirements and automotive qualification necessity for the target application.

Frequently Asked Questions (FAQ)

Q: Are SS2FL4HM3/I, SS2FL4-M3/H, and SS2FL4HM3/H electrically interchangeable?

A: Yes. All three parts share identical electrical specifications including 40V reverse voltage rating, 2A average rectified current, 580mV forward voltage drop at 2A, fast recovery characteristics, reverse leakage current, and junction capacitance. They are parametrically equivalent Schottky rectifier diodes.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel (TR) is a continuous reel format suitable for high-speed automated pick-and-place assembly equipment. Cut Tape (CT) & Digi-Reel® provides flexible packaging options for lower-volume applications or manual assembly processes. Both formats contain the same DO-219AB (SMF) package components.

Q: Does SS2FL4-M3/H lack automotive qualification?

A: The provided specifications for SS2FL4-M3/H do not include automotive grade designation or AEC-Q101 qualification status. If automotive qualification is required for your application, select SS2FL4HM3/I or SS2FL4HM3/H instead.

Q: Can I substitute SS2FL4HM3/H for SS2FL4HM3/I in an automotive application?

A: Yes. SS2FL4HM3/H maintains identical electrical parameters, automotive-grade classification, and AEC-Q101 qualification as SS2FL4HM3/I. Both are suitable for automotive applications with equivalent performance and compliance profiles.

Q: What does AEC-Q101 qualification signify?

A: AEC-Q101 is an automotive electronics council qualification standard for discrete semiconductors. It certifies that the component meets automotive industry reliability, quality, and performance requirements for use in automotive applications.

Q: Are all three parts RoHS3 compliant?

A: Yes. SS2FL4HM3/I, SS2FL4-M3/H, and SS2FL4HM3/H are all ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture-related degradation. Components with this rating do not require special moisture-control storage conditions and can be stored under standard environmental conditions indefinitely.

Q: Can I use these parts in applications requiring temperatures below -55°C or above 150°C?

A: No. The operating temperature range for all three parts is -55°C to 150°C junction temperature. Applications requiring operation outside this range require alternative components with extended temperature specifications.

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