SFW4R-2STE9LF Equivalent & Substitute Parts

Part Overview

The SFW4R-2STE9LF is a 4-position FFC/FPC connector manufactured by Amphenol ICC (FCI) with top-mounted contacts, right-angle surface mount configuration, and 1.00mm pitch. This connector features zero insertion force (ZIF) operation with slide lock retention and is rated for 100V and 1A per contact. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design support and component sourcing.

Substiute Parts

SFW4R-2STE9LF

Amphenol ICC (FCI)In Stock: 729SFW4R-2STE9LF Datasheet

Current PartRFQ

FFC3B11-04-T

GCTIn Stock: 7874FFC3B11-04-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SFW4R-2STE9LF is determined by the following critical parameters:

• Number of Positions: Must be 4
• Pitch: Must be 0.039" (1.00mm)
• Mounting Type: Must be Surface Mount, Right Angle
• Connector/Contact Type: Must be Contacts, Top
• Locking Feature: Must be Slide Lock
• Termination: Must be Solder

The substitute part FFC3B11-04-T meets all core mechanical and electrical interface requirements. Both connectors share identical position count, pitch spacing, mounting orientation, contact configuration, and locking mechanism. This ensures mechanical and electrical compatibility at the board level and with corresponding FFC/FPC cable assemblies.

Parameter Comparison

Engineering Selection Recommendations

The FFC3B11-04-T is an active product with current manufacturing support, making it suitable for applications where the SFW4R-2STE9LF is no longer available. Both connectors comply with RoHS requirements and carry UL94 V-0 flammability certification.

Design considerations for substitution:

The FFC3B11-04-T operates at reduced voltage (50V vs. 100V) and current (0.4A vs. 1A) ratings compared to the main part. Applications requiring the full 100V/1A specification of the SFW4R-2STE9LF must evaluate whether the substitute part meets circuit requirements. The operating temperature range of the substitute is narrower (-25°C to 85°C vs. -55°C to 105°C), which may limit use in extended temperature environments.

Both parts share identical mechanical interfaces, pitch, position count, and locking mechanisms, ensuring compatibility with existing PCB layouts and cable assemblies designed for the SFW4R-2STE9LF.

Frequently Asked Questions (FAQ)

Q: Can FFC3B11-04-T be used as a direct replacement for SFW4R-2STE9LF?

A: FFC3B11-04-T is mechanically and electrically compatible at the connector interface level. Both connectors have identical pitch (1.00mm), position count (4), mounting type (surface mount right angle), and locking mechanism (slide lock). However, the substitute part has lower voltage (50V) and current (0.4A) ratings. Substitution is valid only if your circuit operates within these electrical limits.

Q: What are the key differences between these two connectors?

A: The primary differences are voltage rating (100V vs. 50V), current rating (1A vs. 0.4A), operating temperature range (-55°C to 105°C vs. -25°C to 85°C), housing material (PPS glass-filled vs. thermoplastic), and product status (obsolete vs. active). Mechanical and electrical interface parameters are identical.

Q: Will existing FFC/FPC cables designed for SFW4R-2STE9LF work with FFC3B11-04-T?

A: Yes. Both connectors have the same pitch (1.00mm), position count (4), contact type (top contacts), and cable end interface (tapered). Cables designed for the SFW4R-2STE9LF will mate with FFC3B11-04-T without modification.

Q: Are there any compliance or certification differences?

A: Both connectors are RoHS compliant and carry UL94 V-0 flammability certification. The substitute part is ROHS3 compliant, which represents current RoHS standards. Both have MSL rating of 1 (unlimited moisture sensitivity level).

Q: What should I verify before using FFC3B11-04-T in my design?

A: Confirm that your circuit operates within 50V maximum voltage and 0.4A maximum current per contact. Verify that the operating temperature range (-25°C to 85°C) is acceptable for your application environment. Confirm PCB layout compatibility with the right-angle surface mount configuration and 1.00mm pitch spacing.