Molex 0781191139 FFC, FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0781191139 is a 13-position flat flexible connector (FFC, FPC) with 0.5mm pitch, designed for vertical surface mount applications. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates at 50V with a 0.5A current rating and supports operating temperatures from -40°C to 85°C.

Key Parameters

Parameter	Value
Manufacturer Part Number	0781191139
Manufacturer	Molex
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	13
Pitch	0.020" (0.50mm)
Mounting Type	Surface Mount
Connector Type	Contacts, Vertical - 1 Sided
Height Above Board	0.161" (4.10mm)
FFC, FCB Thickness	0.30mm
Voltage Rating	50V
Current Rating	0.5A
Operating Temperature	-40°C ~ 85°C
Termination	Solder
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0781191139 is determined by the following critical parameters:

Number of Positions: Must be 13
Pitch: Must be 0.020" (0.50mm)
Mounting Type: Must be Surface Mount
Connector Type: Must be Contacts, Vertical - 1 Sided
Height Above Board: Must be 0.161" (4.10mm)
FFC, FCB Thickness: Must be 0.30mm
Voltage Rating: Must be 50V or higher
Operating Temperature Range: Must support -40°C ~ 85°C
Termination: Must be Solder

All three substitute parts meet these core electrical and mechanical parameters. Variations in contact material, contact finish, housing material, and current rating are within acceptable tolerances for this connector category and do not prevent functional substitution.

Parameter Comparison

Parameter	0781191139 (Main)	0781191310 (Molex)	046244413010800+ (KYOCERA AVX)	046244413010846+ (KYOCERA AVX)
Manufacturer	Molex	Molex	KYOCERA AVX	KYOCERA AVX
Number of Positions	13	13	13	13
Pitch	0.020" (0.50mm)	0.020" (0.50mm)	0.020" (0.50mm)	0.020" (0.50mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Connector Type	Contacts, Vertical - 1 Sided	Contacts, Vertical - 1 Sided	Contacts, Vertical - 1 Sided	Contacts, Vertical - 1 Sided
Height Above Board	0.161" (4.10mm)	0.161" (4.10mm)	0.161" (4.10mm)	0.161" (4.10mm)
FFC, FCB Thickness	0.30mm	0.30mm	0.30mm	0.30mm
Voltage Rating	50V	50V	50V	50V
Current Rating	0.5A	0.5A	0.4A	0.4A
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Termination	Solder	Solder	Solder	Solder
Contact Material	Copper Alloy	Phosphor Bronze	Copper Alloy	Copper Alloy
Contact Finish	Tin Bismuth	Tin Bismuth	Tin Copper	Gold
Housing Material	Polyamide (PA46), Nylon 4/6, Glass Filled	Liquid Crystal Polymer (LCP), Glass Filled	Thermoplastic	Plastic
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Molex 0781191310 is the primary substitute for the obsolete 0781191139. Both parts are from the same manufacturer and series (Easy-On 78119), with identical electrical and mechanical specifications. The 0781191310 is currently in active production status with 906 units in stock, ensuring long-term availability. The housing material upgrade from Polyamide to Liquid Crystal Polymer (LCP) provides improved thermal and chemical resistance.

KYOCERA AVX 046244413010800+ and 046244413010846+ are cross-manufacturer alternatives that meet all core substitution criteria. Both parts feature Low Insertion Force (LIF) technology and are in active production. The 046244413010800+ uses Tin Copper contact finish, while the 046244413010846+ uses Gold contact finish for enhanced corrosion resistance. Both KYOCERA AVX parts carry a 0.4A current rating compared to the 0.5A rating of the Molex options; this reduction is within acceptable tolerance for most applications operating below maximum current specifications.

All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0781191310 directly replace the 0781191139 without PCB redesign?

A: Yes. The 0781191310 maintains identical pitch (0.5mm), position count (13), height above board (4.10mm), and mounting footprint. No PCB layout modifications are required.

Q: What is the difference between the two KYOCERA AVX substitute parts?

A: Both 046244413010800+ and 046244413010846+ share identical mechanical and electrical specifications. The primary difference is contact finish: 046244413010800+ uses Tin Copper finish, while 046244413010846+ uses Gold finish. Gold finish provides superior corrosion resistance in high-humidity or corrosive environments.

Q: Are the KYOCERA AVX parts suitable for applications requiring 0.5A current?

A: The KYOCERA AVX parts are rated for 0.4A maximum current, compared to 0.5A for the Molex options. Applications operating at or near 0.5A should use the Molex 0781191310. Applications operating below 0.4A can safely use either KYOCERA AVX part.

Q: Do all substitute parts support the same operating temperature range?

A: Yes. All substitute parts support -40°C to 85°C operating temperature, matching the original part specification.

Q: What is the packaging format for these substitute parts?

A: All substitute parts are supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Q: Are there any compliance differences between the substitute parts?

A: All parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. The original 0781191139 and both KYOCERA AVX parts are explicitly REACH Unaffected. REACH status for the Molex 0781191310 is not specified in available documentation.

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