SFW7R-3STE1 FFC/FPC Connector Equivalent & Substitute Parts

Part Overview

The SFW7R-3STE1 is a 7-position FFC/FPC connector manufactured by Amphenol ICC (FCI) with bottom-mounted contacts, 1.00mm pitch, and right-angle surface mount configuration. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The connector features Zero Insertion Force (ZIF) operation, slide lock mechanism, and is constructed with Polyphenylene Sulfide (PPS) glass-filled housing and phosphor bronze contacts with tin alloy finish. It is rated UL94 V-0 for material flammability and carries MSL 1 (unlimited moisture sensitivity level).

Substiute Parts

SFW7R-3STE1

Amphenol ICC (FCI)In Stock: 1026SFW7R-3STE1 Datasheet

Current PartRFQ

SFW7R-3STE1LF

Amphenol ICC (FCI)In Stock: 1237SFW7R-3STE1LF Datasheet

DirectRFQ

0528520770

MolexIn Stock: 271410528520770 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SFW7R-3STE1 are identified based on the following critical parameters that must remain constant for functional compatibility:

• 7-position connector configuration
• 1.00mm (0.039") pitch spacing
• Bottom-mounted contact arrangement
• Surface mount, right-angle orientation
• FFC/FPC flat flexible cable compatibility
• Polyphenylene Sulfide (PPS) housing material
• Phosphor bronze contact material
• UL94 V-0 flammability rating
• MSL 1 moisture sensitivity level

Parameters that may vary between substitutes include termination method (solder vs. kinked pin), locking mechanism design, cable end type, contact finish composition, height above board, voltage and current ratings, operating temperature range, and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

SFW7R-3STE1LF is the primary direct substitute from Amphenol ICC (FCI). This part maintains the same manufacturer lineage, identical pitch and position count, and equivalent mechanical form factor. The SFW7R-3STE1LF carries active product status and RoHS compliance, addressing the obsolescence and regulatory limitations of the original part. The kinked pin termination differs from solder termination but provides equivalent electrical connectivity for the same cable interface. Operating temperature range (-55°C ~ 105°C) and voltage rating (100V) exceed typical application requirements for this connector class.

0528520770 (Molex Easy-On 52852 series) is a cross-manufacturer substitute that maintains all critical mechanical and electrical parameters: 7 positions, 1.00mm pitch, bottom-mount right-angle configuration, and UL94 V-0 rating. Height above board increases from 2.70mm to 3.10mm, which may require PCB layout verification. Voltage rating (50V) and current rating (0.5A) are lower than the Amphenol alternative. This part is suitable for applications where cross-manufacturer sourcing is acceptable and PCB clearance accommodates the increased height.

For new designs or procurement requiring RoHS compliance and active product status, SFW7R-3STE1LF is the recommended primary choice. For applications requiring maximum voltage and current capacity, SFW7R-3STE1LF provides superior electrical ratings. For cost optimization or supply chain diversification, 0528520770 provides functional equivalence with manufacturer-specific trade-offs.

Frequently Asked Questions (FAQ)

Q: Can SFW7R-3STE1LF be used as a direct replacement for SFW7R-3STE1?

A: Yes. Both parts share identical pitch (1.00mm), position count (7), mounting orientation (surface mount right-angle), contact position (bottom), and height above board (2.70mm). The termination method differs (kinked pin vs. solder), but both provide equivalent electrical connection to FFC/FPC cables. The SFW7R-3STE1LF is active product status and RoHS compliant, making it the preferred substitute for the obsolete SFW7R-3STE1.

Q: What is the primary difference between SFW7R-3STE1LF and 0528520770?

A: Both are functionally equivalent 7-position, 1.00mm pitch FFC/FPC connectors. The key differences are: manufacturer (Amphenol ICC vs. Molex), height above board (2.70mm vs. 3.10mm), contact finish (tin vs. tin bismuth), voltage rating (100V vs. 50V), current rating (1A vs. 0.5A), and mating cycles (20 vs. 10). The increased height of the Molex part requires PCB layout verification for clearance compatibility.

Q: Are there cable compatibility concerns when substituting these parts?

A: No. All three parts accept FFC/FPC cables with 1.00mm pitch and bottom-contact configuration. The SFW7R-3STE1 and SFW7R-3STE1LF support cable thickness of 0.30mm and 0.33mm. The 0528520770 supports 0.30mm thickness. Verify cable thickness compatibility with your specific FFC/FPC assembly.

Q: Does the change in height above board (2.70mm to 3.10mm) affect compatibility?

A: Height above board affects PCB layout clearance and component spacing. The 0528520770 (3.10mm) is 0.4mm taller than the SFW7R-3STE1 and SFW7R-3STE1LF (2.70mm). Verify that your PCB design accommodates this increased height, particularly if components or traces are positioned above the connector footprint.

Q: Which substitute part should be selected for new designs?

A: SFW7R-3STE1LF is recommended for new designs. It maintains the same mechanical form factor as the original part, carries active product status, is RoHS compliant, and provides superior electrical ratings (100V, 1A, -55°C ~ 105°C operating range). The 0528520770 is suitable if cross-manufacturer sourcing is required or if the increased height above board is acceptable for your PCB layout.

Q: Are there RoHS compliance implications when substituting?

A: Yes. The original SFW7R-3STE1 is RoHS non-compliant. Both SFW7R-3STE1LF (RoHS Compliant) and 0528520770 (ROHS3 Compliant) meet current RoHS requirements. If your application or supply chain requires RoHS compliance, either substitute part is acceptable.