SFW4S-2STAE1LF Equivalent & Substitute Parts

Part Overview

The SFW4S-2STAE1LF is a 4-position FPC (Flat Flexible) connector manufactured by Amphenol ICC (FCI) designed for surface mount applications. This vertical-mount connector features a 1.00mm pitch and Zero Insertion Force (ZIF) actuation mechanism, suitable for applications requiring reliable flat flexible cable interconnection. The part is currently in active production status with 1038 units available in inventory. Substitute parts are identified when packaging or availability constraints necessitate alternative sourcing while maintaining identical electrical and mechanical performance.

Key Parameters

Parameter	Value
Manufacturer Part Number	SFW4S-2STAE1LF
Manufacturer	Amphenol ICC (FCI)
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	4
Pitch	0.039" (1.00mm)
Mounting Type	Surface Mount
Connector Type	Contacts, Vertical - 1 Sided
Height Above Board	0.209" (5.30mm)
Voltage Rating	100V
Current Rating	1A
Operating Temperature Range	-55°C ~ 85°C
Contact Material	Phosphor Bronze
Contact Finish	Gold
Housing Material	Thermoplastic, Glass Filled
Features	Zero Insertion Force (ZIF)
Mating Cycles	20
RoHS Status	RoHS Compliant
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

The SFW4S-2STAE1LF has one identified parametric equivalent: SFW4S-2STMAE1LF. This substitute relationship is established based on strict equivalence across all critical electrical and mechanical parameters:

Key Parameters Determining Substitution:

Number of Positions: 4
Pitch: 0.039" (1.00mm)
Mounting Type: Surface Mount
Connector Type: Contacts, Vertical - 1 Sided
Height Above Board: 0.209" (5.30mm)
Voltage Rating: 100V
Current Rating: 1A
Operating Temperature Range: -55°C ~ 85°C
Contact Material: Phosphor Bronze
Contact Finish: Gold
Housing Material: Thermoplastic, Glass Filled
Features: Zero Insertion Force (ZIF)
Mating Cycles: 20
RoHS Status: RoHS Compliant
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

The primary difference between the main part and its substitute is packaging format: the main part is supplied in Tape & Reel (TR) format, while the substitute is available in Cut Tape (CT) & Digi-Reel® format. Both parts share identical base product number SFW4S and maintain full functional and mechanical compatibility.

Parameter Comparison

Parameter	SFW4S-2STAE1LF (Main)	SFW4S-2STMAE1LF (Substitute)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Category	FFC, FPC (Flat Flexible) Connectors	FFC, FPC (Flat Flexible) Connectors
Packaging	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®
Number of Positions	4	4
Pitch	0.039" (1.00mm)	0.039" (1.00mm)
Mounting Type	Surface Mount	Surface Mount
Connector Type	Contacts, Vertical - 1 Sided	Contacts, Vertical - 1 Sided
Height Above Board	0.209" (5.30mm)	0.209" (5.30mm)
Voltage Rating	100V	100V
Current Rating	1A	1A
Operating Temperature Range	-55°C ~ 85°C	-55°C ~ 85°C
Contact Material	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold	Gold
Housing Material	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled
Features	Zero Insertion Force (ZIF)	Zero Insertion Force (ZIF)
Mating Cycles	20	20
RoHS Status	RoHS Compliant	RoHS Compliant
Material Flammability Rating	UL94 V-0	UL94 V-0
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active
Inventory Availability	1038 Pcs	9408 Pcs

Engineering Selection Recommendations

Both the SFW4S-2STAE1LF and SFW4S-2STMAE1LF are active production parts with full RoHS compliance and UL94 V-0 material flammability certification. Selection between these parts should be based on packaging requirements and inventory availability:

SFW4S-2STAE1LF is appropriate for high-volume automated assembly processes utilizing tape and reel feeding systems.
SFW4S-2STMAE1LF is suitable for applications requiring cut tape packaging or when higher inventory availability is prioritized. This part offers significantly greater stock availability (9408 units versus 1038 units).

Both parts maintain identical electrical performance, mechanical dimensions, and environmental ratings. The choice between them does not affect circuit design, PCB layout, or functional performance.

Frequently Asked Questions (FAQ)

Q: Are SFW4S-2STAE1LF and SFW4S-2STMAE1LF electrically identical?

A: Yes. Both parts share identical electrical specifications including voltage rating (100V), current rating (1A), operating temperature range (-55°C ~ 85°C), and contact material composition (Phosphor Bronze with gold finish).

Q: What is the difference between these two part numbers?

A: The primary difference is packaging format. SFW4S-2STAE1LF is supplied in Tape & Reel (TR) format, while SFW4S-2STMAE1LF is supplied in Cut Tape (CT) & Digi-Reel® format. All mechanical and electrical characteristics are identical.

Q: Can I use SFW4S-2STMAE1LF as a direct replacement for SFW4S-2STAE1LF?

A: Yes, provided your assembly process can accommodate the Cut Tape & Digi-Reel® packaging format. The connector itself is mechanically and electrically identical, requiring no PCB layout or design modifications.

Q: Are both parts RoHS compliant?

A: Yes. Both SFW4S-2STAE1LF and SFW4S-2STMAE1LF are RoHS compliant with UL94 V-0 material flammability certification.

Q: What does Zero Insertion Force (ZIF) mean for this connector?

A: ZIF actuation allows the flat flexible cable to be inserted and removed without applying force to the connector body. The actuator mechanism secures the cable once inserted.

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

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.

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