11FMN-SMT-A-TF Equivalent & Substitute Parts

Part Overview

The 11FMN-SMT-A-TF is an 11-position FFC connector manufactured by JST Sales America Inc., featuring top-mounted contacts with 1.00mm pitch and right-angle surface mount configuration. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates at 50V with 0.5A current rating and is suitable for applications requiring low insertion force connectivity in compact form factors.

Substiute Parts

11FMN-SMT-A-TF

JST Sales America Inc.In Stock: 494611FMN-SMT-A-TF Datasheet

Current PartRFQ

046232111102800+

KYOCERA AVXIn Stock: 788046232111102800+ Datasheet

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1-1734798-1

TE Connectivity AMP ConnectorsIn Stock: 10451-1734798-1 Datasheet

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1-84981-1

TE Connectivity AMP ConnectorsIn Stock: 125431-84981-1 Datasheet

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FH12-11S-1SH(55)

Hirose Electric Co LtdIn Stock: 3370FH12-11S-1SH(55) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 11FMN-SMT-A-TF is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 11
• Pitch: 0.039" (1.00mm)
• Mounting Type: Surface Mount, Right Angle
• FFC Thickness: 0.30mm
• Termination: Solder
• Voltage Rating: 50V or higher
• Current Rating: 0.5A or higher

Allowable Variations:

• Connector/Contact Type: Top or Bottom mounting (functional equivalence with PCB layout adjustment)
• Height Above Board: Within 0.039" (1.00mm) tolerance
• Contact Material: Phosphor Bronze or Copper Alloy
• Contact Finish: Tin or Gold
• Housing Material: Polyamide, Nylon, or Thermoplastic variants
• Operating Temperature: Minimum -20°C to maximum 85°C acceptable
• Features: Additional features (Solder Retention, ZIF, Flip Lock) do not disqualify substitution

The substitute parts listed below meet these criteria and are suitable for direct replacement or functional equivalence with minor PCB design considerations.

Parameter Comparison

Engineering Selection Recommendations

Direct Top-Contact Replacement: The 1-84981-1 (TE Connectivity) is the most direct functional equivalent, matching the top-contact configuration of the original 11FMN-SMT-A-TF. This part maintains identical height above board (3.00mm), pitch, and position count. The 1-84981-1 offers higher voltage rating (125V) and current capacity (1A), providing design margin. ROHS3 compliance and active product status ensure long-term availability.

Bottom-Contact Alternatives: The 046232111102800+ (KYOCERA AVX), 1-1734798-1 (TE Connectivity), and FH12-11S-1SH(55) (Hirose) are functionally equivalent with bottom-contact configuration. These require PCB layout modification to accommodate bottom-side mounting. All three are active products with current manufacturing support.

Compliance Considerations: The original 11FMN-SMT-A-TF is RoHS non-compliant. All substitute parts listed are RoHS compliant (ROHS3 or RoHS), meeting current regulatory requirements for new designs and production runs.

Availability and Inventory: The 1-84981-1 offers the highest inventory availability (12,489 pcs), followed by FH12-11S-1SH(55) (3,260 pcs). These options provide supply security for volume production.

Frequently Asked Questions (FAQ)

Q: Can I use a bottom-contact connector as a direct replacement for the top-contact 11FMN-SMT-A-TF?

A: Bottom-contact connectors (046232111102800+, 1-1734798-1, FH12-11S-1SH(55)) are functionally equivalent but require PCB layout modification. The FFC cable connection point moves from the top side to the bottom side of the PCB. Mechanical clearance and routing must be re-evaluated for your specific application.

Q: What is the significance of the height above board difference in the 1-1734798-1?

A: The 1-1734798-1 has a height of 0.126" (3.20mm) compared to the original 3.00mm. This 0.20mm difference may affect clearance in space-constrained applications. Verify available vertical clearance on your PCB before selection.

Q: Does the FH12-11S-1SH(55) with Zero Insertion Force (ZIF) and Flip Lock features affect compatibility?

A: The ZIF and Flip Lock features are additional capabilities that do not prevent substitution. These features provide enhanced usability during assembly and maintenance. The connector remains electrically and mechanically compatible with standard FFC cables at the specified pitch and position count.

Q: Why is the 1-84981-1 rated for 125V and 1A when the original is 50V and 0.5A?

A: Higher voltage and current ratings indicate greater design margin and capability. The 1-84981-1 can safely operate in applications requiring the original 50V/0.5A specifications. This provides flexibility for future design upgrades without connector replacement.

Q: Are there RoHS compliance implications for substitution?

A: The original 11FMN-SMT-A-TF is RoHS non-compliant. All substitute parts are RoHS compliant. If your application or market requires RoHS compliance, substitution is necessary. Verify compliance requirements with your quality and regulatory teams.

Q: What packaging formats are available for these substitute parts?

A: The 046232111102800+ and 1-84981-1 are supplied in Tape & Reel (TR) format suitable for automated assembly. The FH12-11S-1SH(55) is available in Cut Tape (CT) and Digi-Reel® format. The 1-1734798-1 packaging format is not specified. Confirm packaging compatibility with your assembly process.

Q: Can I mix contact materials (Phosphor Bronze vs. Copper Alloy) in the same application?

A: Both Phosphor Bronze and Copper Alloy contacts meet the electrical and mechanical requirements specified. Contact material selection does not affect substitution eligibility. Verify material compatibility with your FFC cable specifications if required by your design standards.