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JST 40FMN-BMT-A-TF(LF)(SN) — FFC / FPC Cable Assemblies

JST 40FMN-BMT-A-TF(LF)(SN) – 40-Pos 1mm Pitch FFC Connector

MPN40FMN-BMT-A-TF(LF)(SN)
Active

JST Sales America Inc., FMN series, FFC connector, 40 positions, 0.039" (1.00mm) pitch, vertical SMD, Low Insertion Force (LIF), tin-plated phosphor bronze contacts, UL94 V-0 black PA6T housing.

$1.7300Ref. price · indicative, final on quote
RoHSRoHS Compliant
SeriesFMN
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

40FMN-BMT-A-TF(LF)(SN) key specifications
ParameterValue
SeriesFMN
MountingSurface Mount
Cable end typeStraight
Flat flex typeFFC
Connector (Contact type)Contacts, Vertical - 1 Sided
Voltage rating50V
Current rating0.5A
Operating temperature-25°C ~ 85°C
Housing colorBlack
Contact materialPhosphor Bronze
Housing materialPolyamide (PA6T), Nylon 6T
Height above board0.201\" (5.10mm)

All specifications

40FMN-BMT-A-TF(LF)(SN) additional specifications
ParameterValue
Material flammability ratingUL94 V-0
Pitch0.039\" (1.00mm)
PackageTape & Reel (TR) Cut Tape (CT)
FeaturesLow Insertion Force (LIF)
TerminationSolder
Contact finishTin
FFC, FCB thickness0.30mm
Positions40

Product details

40-position vertical FFC – BOM fit and signal routing

The Low Insertion Force (LIF) design reduces pad wear on the FFC during repeated mating cycles, which matters when the cable gets swapped in field service.

Pitch and footprint – what the 1.00 mm means for layout

The 0.039" (1.00mm) pitch is a common FPC standard, so the footprint matches many off-the-shelf FFC cables with 0.30 mm thickness. Vertical mounting keeps the cable standing upright off the board, which helps in tight enclosures where a right-angle connector would crowd the edge.

RoHS compliant.

Position count delta vs 30-position sibling

Compared to the 30-position 30FMN-BMT-A-TF, this 40-position version adds ten circuits in the same 1.00 mm pitch and same 5.10 mm height above board. All other ratings — 0.5 A, 50 V, LIF, tin finish, UL94 V-0 — are identical across the FMN vertical SMD family.

Frequently asked questions

What is the pitch of 40FMN-BMT-A-TF(LF)(SN)?

The pitch is 0.039" (1.00mm). That matches standard 1.00 mm FFC cables with 0.30 mm thickness.

Can 40FMN-BMT-A-TF(LF)(SN) replace a 30-position FMN connector on the same board?

No — the 40-position version has ten more circuits in the same pitch and height, so the footprint is longer. The 30FMN-BMT-A-TF shares identical ratings (0.5 A, 50 V, LIF, tin) but is a different PCB layout.