DF14-4S-1.25C Equivalent & Substitute Parts

Part Overview

The DF14-4S-1.25C is a 4-position rectangular connector housing manufactured by Hirose Electric Co Ltd. This receptacle connector features a 0.049" (1.25mm) pitch and is designed for crimp termination applications. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing procurement and system maintenance. The connector is RoHS compliant and rated for operating temperatures between -35°C and 85°C.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	4
Pitch	0.049" (1.25mm)
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Insulation Material	Polyamide (PA), Nylon
Operating Temperature Range	-35°C ~ 85°C
Color	Beige
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF14-4S-1.25C are qualified based on the following critical parameters:

Connector Type & Contact Configuration: All substitutes must be receptacle housings with female socket contacts
Position Count & Pitch: All substitutes must accommodate 4 positions at 0.049" (1.25mm) pitch
Mounting & Termination: All substitutes must support free hanging in-line mounting with crimp termination
Material & Environmental Ratings: All substitutes must use polyamide nylon insulation and maintain MSL 1 rating
Temperature Operating Range: Substitutes must support the minimum required range; extended ranges are acceptable

Three substitute parts meet these criteria:

DF14-4S-1.25C(10) — Manufacturer-recommended equivalent from Hirose Electric Co Ltd with active product status
125CH-D-04 — Manufacturer-recommended equivalent from Adam Tech with friction lock fastening
10114826-00004LF — Parametric equivalent from Amphenol ICC (FCI) with extended temperature range

Parameter Comparison

Parameter	DF14-4S-1.25C (Main)	DF14-4S-1.25C(10)	125CH-D-04	10114826-00004LF
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Adam Tech	Amphenol ICC (FCI)
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	4	4	4	4
Pitch	0.049" (1.25mm)	0.049" (1.25mm)	0.049" (1.25mm)	0.049" (1.25mm)
Number of Rows	1	1	1	1
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp	Crimp	Crimp
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	-25°C ~ 85°C	-40°C ~ 105°C
Color	Beige	Beige	Beige	Natural
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: DF14-4S-1.25C(10)

The DF14-4S-1.25C(10) is the preferred substitute. It is manufactured by Hirose Electric Co Ltd, the original equipment manufacturer, and maintains identical electrical and mechanical specifications to the main part. The part carries active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

Secondary Recommendation: 125CH-D-04

The 125CH-D-04 from Adam Tech is an active, manufacturer-recommended equivalent with ROHS3 compliance. It meets all critical substitution parameters. The operating temperature minimum is -25°C compared to -35°C for the main part; this difference is acceptable for applications not requiring extended low-temperature operation. The friction lock fastening feature provides an additional mechanical advantage.

Tertiary Recommendation: 10114826-00004LF

The 10114826-00004LF from Amphenol ICC (FCI) is a parametric equivalent with active product status and extended operating temperature range (-40°C ~ 105°C). The insulation material is PA66 nylon 6/6 rather than standard polyamide nylon. The connector color is natural rather than beige. This part is suitable for applications requiring extended temperature performance and is RoHS compliant. REACH status is affected, requiring verification for regulated substance compliance in specific applications.

Frequently Asked Questions (FAQ)

Q: Can DF14-4S-1.25C(10) be used as a direct replacement for DF14-4S-1.25C?

A: Yes. The DF14-4S-1.25C(10) is a direct equivalent from the same manufacturer with identical electrical and mechanical specifications. The primary difference is product status: the original part is obsolete while the (10) variant is active.

Q: What is the difference between the 125CH-D-04 and the main part?

A: The 125CH-D-04 meets all critical substitution parameters. The operating temperature minimum is -25°C versus -35°C for the main part. The 125CH-D-04 includes friction lock fastening, which the main part does not specify. Both use polyamide nylon insulation and support 4-position, 1.25mm pitch crimp termination.

Q: Why does the 10114826-00004LF have a different color?

A: The 10114826-00004LF is specified as natural color rather than beige. Both colors are standard for polyamide nylon housings and do not affect electrical or mechanical function. Color selection depends on application requirements and visual identification needs.

Q: Is the 10114826-00004LF suitable for low-temperature applications?

A: The 10114826-00004LF supports operating temperatures down to -40°C, which exceeds the -35°C minimum of the main part. It is suitable for extended low-temperature applications.

Q: What does REACH Affected status mean for the 10114826-00004LF?

A: REACH Affected indicates the part may contain substances regulated under the REACH regulation. Verification of specific substance compliance is required for applications subject to REACH requirements.

Q: Are contacts included with these connector housings?

A: No. All parts in this comparison are connector housings only. Contacts must be procured separately and are not included.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical and mechanical interchangeability is confirmed for all three substitutes based on the specified parameters. Physical form factor, mounting orientation, and contact compatibility with existing mating connectors must be verified for specific applications.

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