SFW28R-2STE1 FFC/FPC Connector Equivalent & Substitute Parts

Part Overview

The SFW28R-2STE1 is a 28-position FFC/FPC connector manufactured by Amphenol ICC (FCI) with top-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 production and maintenance applications. The connector features Zero Insertion Force (ZIF) technology with slide lock mechanism, suitable for flat flexible cable termination in compact electronic assemblies.

Substiute Parts

SFW28R-2STE1

Amphenol ICC (FCI)In Stock: 1064SFW28R-2STE1 Datasheet

Current PartRFQ

SFW28R-2STE1LF

Amphenol ICC (FCI)In Stock: 1327SFW28R-2STE1LF Datasheet

DirectRFQ

0522072860

MolexIn Stock: 39850522072860 Datasheet

MFR RecommendedRFQ

0522712869

MolexIn Stock: 73560522712869 Datasheet

MFR RecommendedRFQ

0527932870

MolexIn Stock: 7610527932870 Datasheet

MFR RecommendedRFQ

0528522870

MolexIn Stock: 7090528522870 Datasheet

MFR RecommendedRFQ

ZF1-28-01-T-WT

Samtec Inc.In Stock: 1038ZF1-28-01-T-WT Datasheet

MFR RecommendedRFQ

ZF1-28-02-T-WT-TR

Samtec Inc.In Stock: 659ZF1-28-02-T-WT-TR Datasheet

MFR RecommendedRFQ

ZF1-28-02-TM-WT

Samtec Inc.In Stock: 1001ZF1-28-02-TM-WT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SFW28R-2STE1 is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Number of positions: 28
• Pitch: 0.039" (1.00mm)
• Connector contact orientation: Top-mounted
• Mounting type: Surface mount, right angle
• Termination method: Solder
• FFC/FPC thickness compatibility: 0.30mm

Secondary Compatibility Factors:

• Locking mechanism: Slide lock preferred for mechanical compatibility
• Housing material: PPS or equivalent rigid polymer acceptable
• Contact material: Phosphor bronze standard
• Features: Zero Insertion Force (ZIF) capability

Substitute parts are grouped into two categories: direct functional equivalents from the same manufacturer (Amphenol ICC) and cross-manufacturer alternatives meeting identical electrical and mechanical specifications. Parts with differing contact orientation (bottom-mounted), reduced current ratings, or incompatible height profiles are listed for reference but require design verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

SFW28R-2STE1LF is the optimal substitute for the obsolete SFW28R-2STE1. Both parts are manufactured by Amphenol ICC within the same SFW-R series, maintaining identical mechanical and electrical interfaces. The LF variant is RoHS compliant and carries active product status, ensuring long-term availability and supply chain stability. This part provides identical pitch, position count, contact orientation, height profile, and locking mechanism. The transition from the non-compliant original to the compliant variant aligns with current regulatory requirements.

Cross-Manufacturer Alternatives:

Molex 0522072860 provides functional equivalence with identical position count, pitch, and top-contact orientation. This part features gold contact finish and higher voltage rating (125V) compared to the original specification. The 2.70mm height matches the original part exactly, and slide lock mechanism is retained. RoHS3 compliance and active status support production continuity.

Samtec ZF1-28-02-T-WT-TR and ZF1-28-02-TM-WT offer alternative solutions with extended operating temperature range (-55°C to 105°C) and LCP housing material. Both maintain identical position count, pitch, top-contact orientation, and slide lock mechanism. Height above board is 3.00mm, representing a 0.30mm increase from the original specification. These parts require PCB layout verification to confirm clearance compatibility.

Parts Requiring Design Verification:

Molex 0527932870 and 0528522870 feature increased height above board (3.10mm) and lack slide lock mechanism. These parts are suitable only when design specifications permit the height variation and mechanical retention is provided through alternative means.

Molex 0522712869 features bottom-contact orientation and is incompatible with top-contact applications without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can SFW28R-2STE1LF be used as a direct drop-in replacement for SFW28R-2STE1?

A: Yes. Both parts share identical mechanical and electrical interfaces within the SFW-R series. The LF variant maintains the same 28-position count, 1.00mm pitch, top-contact orientation, 2.70mm height, and slide lock mechanism. The primary difference is RoHS compliance status and active product availability.

Q: What is the significance of the height above board parameter in connector substitution?

A: Height above board determines clearance requirements on the PCB and affects component placement in confined spaces. The original SFW28R-2STE1 specifies 2.70mm. Samtec alternatives provide 3.00mm height, and Molex Easy-On series provide 3.10mm. Substitution requires verification that the increased height does not violate design constraints or create interference with adjacent components.

Q: Are Molex 0527932870 and 0528522870 suitable substitutes?

A: These parts meet the 28-position, 1.00mm pitch, and solder termination requirements. However, they lack slide lock mechanism and feature increased height (3.10mm). Substitution is permissible only when design specifications accommodate the height increase and alternative mechanical retention methods are implemented.

Q: What is the difference between top-contact and bottom-contact orientation?

A: Contact orientation determines which side of the PCB the connector contacts engage. Top-contact connectors (SFW28R-2STE1, 0522072860, 0527932870, ZF1-28-02 variants) mount with contacts facing upward. Bottom-contact connectors (0522712869, 0528522870) mount with contacts facing downward. These are not interchangeable without PCB redesign.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance addresses material composition and lead content but does not alter electrical performance specifications. The transition from RoHS non-compliant SFW28R-2STE1 to RoHS-compliant SFW28R-2STE1LF maintains identical electrical characteristics while meeting current regulatory requirements.

Q: Can Samtec ZF1-28-02 variants be used in applications with temperature extremes?

A: Yes. Samtec parts specify operating temperature range of -55°C to 105°C, providing broader temperature coverage than the original part specification. This extended range supports applications in industrial and automotive environments requiring extreme temperature tolerance.

Q: What packaging options are available for production quantities?

A: SFW28R-2STE1LF is available in Cut Tape (CT) packaging. Molex alternatives are supplied in Tape & Reel (TR) format. Samtec ZF1-28-02-T-WT-TR is supplied in Tape & Reel, while ZF1-28-02-TM-WT is supplied in Tube packaging. Packaging selection depends on assembly process requirements and volume specifications.

Q: Are contact finish differences significant for substitution?

A: Contact finish affects corrosion resistance and contact reliability. The original part specifies tin alloy finish. Substitutes offer tin, gold, or tin bismuth finishes. Gold finish (Molex 0522072860) provides superior corrosion resistance in harsh environments. Tin and tin bismuth finishes are suitable for standard applications. Selection depends on environmental exposure and reliability requirements.