Molex 0781271249 FFC/FPC Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0781271249 is a 24-position FFC/FPC vertical connector with 0.5mm pitch, designed for surface mount applications. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part operates within a 50V rating and -40°C to 85°C temperature range, suitable for consumer and industrial electronics requiring flat flexible cable interconnection.

Key Parameters

Parameter	Value
Manufacturer Part Number	0781271249
Manufacturer	Molex
Category	FFC, FPC (Flat Flexible) Connectors
Number of Positions	24
Pitch	0.020" (0.50mm)
Mounting Type	Surface Mount
Connector Type	Contacts, Vertical - 1 Sided
Voltage Rating	50V
Current Rating	0.5A
Operating Temperature	-40°C ~ 85°C
Height Above Board	0.161" (4.10mm)
FFC/FCB Thickness	0.30mm
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the Molex 0781271249 is determined by strict equivalence across the following critical parameters:

Position Count & Pitch: 24 positions at 0.020" (0.50mm) pitch
Mounting Configuration: Surface mount, vertical orientation, 1-sided contacts
Electrical Ratings: 50V voltage, 0.5A current capacity
Physical Dimensions: 0.161" (4.10mm) height above board, 0.30mm FFC/FCB thickness
Environmental Compliance: UL94 V-0 flammability, ROHS3 compliance, -40°C to 85°C operating range
Termination Method: Solder termination

Two substitute parts meet these criteria with documented compatibility:

0781272410 - Direct manufacturer equivalent (Active status, Tape & Reel packaging)
0781192410 - Parametric equivalent from Easy-On 78119 series (Active status, Tape & Reel packaging)

Parameter Comparison

Parameter	0781271249 (Main)	0781272410 (Direct Equivalent)	0781192410 (Parametric Equivalent)
Manufacturer	Molex	Molex	Molex
Number of Positions	24	24	24
Pitch	0.020" (0.50mm)	0.020" (0.50mm)	0.020" (0.50mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Connector Type	Contacts, Vertical - 1 Sided	Contacts, Vertical - 1 Sided	Contacts, Vertical - 1 Sided
Voltage Rating	50V	50V	50V
Current Rating	0.5A	0.5A	0.5A
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Height Above Board	0.161" (4.10mm)	0.161" (4.10mm)	0.161" (4.10mm)
FFC/FCB Thickness	0.30mm	0.30mm	0.30mm
Contact Finish	Tin Bismuth	Tin Bismuth	Tin Bismuth
Contact Finish Thickness	39.4µin (1.00µm)	39.4µin (1.00µm)	39.4µin (1.00µm)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active
Packaging	Bulk	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

Both substitute parts are active products with full ROHS3 compliance and UL94 V-0 flammability certification, providing long-term supply assurance compared to the obsolete 0781271249.

0781272410 is the primary direct equivalent, maintaining identical electrical and mechanical specifications. This part is available in higher inventory (2861 pcs) and is packaged in Tape & Reel format suitable for automated assembly processes.

0781192410 is a parametric equivalent from the Easy-On 78119 series, meeting all critical electrical and mechanical requirements. This part is also active and ROHS3 compliant, with Tape & Reel packaging. The primary difference is series designation (78119 vs. 78127), which does not affect functional compatibility for the specified parameters.

Both substitutes are suitable for direct replacement in applications requiring the 24-position, 0.5mm pitch FFC/FPC vertical connector configuration.

Frequently Asked Questions (FAQ)

Q: Can 0781272410 and 0781192410 be used interchangeably with 0781271249?

A: Both parts meet the critical electrical and mechanical parameters: 24 positions, 0.5mm pitch, 50V rating, 0.5A current capacity, -40°C to 85°C operating range, and UL94 V-0 compliance. They are functionally equivalent for applications requiring these specifications.

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

A: 0781272410 belongs to the Easy-On 78127 series (same as the main part), while 0781192410 belongs to the Easy-On 78119 series. Both maintain identical electrical ratings, pitch, position count, and physical dimensions. The series designation does not affect functional compatibility.

Q: Why is the main part 0781271249 obsolete?

A: Product obsolescence is determined by manufacturer lifecycle decisions. Both active substitutes (0781272410 and 0781192410) provide continued availability for this connector configuration.

Q: Are there packaging differences between the main part and substitutes?

A: The main part 0781271249 is supplied in bulk packaging. Both substitutes are supplied in Tape & Reel (TR) format, which is standard for automated surface mount assembly processes.

Q: Do the substitutes have the same mating cycle rating?

A: The main part specifies 20 mating cycles. Both substitutes specify 10 mating cycles. For applications requiring higher mating cycle durability, this parameter should be evaluated against specific use case requirements.

Q: Are all parts ROHS3 compliant?

A: Yes. The main part 0781271249 and both substitutes (0781272410 and 0781192410) are ROHS3 compliant.

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