DF14-2P-1.25H(54) Equivalent & Substitute Parts

Part Overview

The DF14-2P-1.25H(54) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for surface mount, right-angle board-to-cable/wire applications with 2 positions at 0.049" (1.25mm) pitch. This connector features shrouded 4-wall construction, solder termination, and push-pull fastening. The part is currently listed as obsolete, making identification of active equivalent models necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	DF14-2P-1.25H(54)
Manufacturer	Hirose Electric Co Ltd
Series	DF14
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.049" (1.25mm)
Number of Positions	2
Number of Rows	1
Mounting Type	Surface Mount, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Push-Pull
Current Rating	1A
Voltage Rating	150VAC
Operating Temperature	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DF14-2P-1.25H(54) is determined by strict equivalence across the following critical parameters:

Connector type, contact type, and series (DF14 header, male pin)
Mating pitch of 0.049" (1.25mm)
Position count of 2 with single row configuration
Surface mount, right-angle mounting orientation
Shrouded 4-wall construction with push-pull fastening
Solder termination method
Electrical ratings: 1A current, 150VAC voltage
Operating temperature range: -35°C ~ 85°C
Material flammability: UL94 V-0
Contact material and finish specifications

The DF14-2P-1.25H(65) meets all these criteria and is classified as an active product, making it a direct functional equivalent.

Parameter Comparison

Parameter	DF14-2P-1.25H(54)	DF14-2P-1.25H(65)
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd
Series	DF14	DF14
Product Status	Obsolete	Active
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Pitch - Mating	0.049" (1.25mm)	0.049" (1.25mm)
Number of Positions	2	2
Number of Rows	1	1
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.086" (2.20mm)	0.087" (2.20mm)
Insulation Height	0.098" (2.50mm)	0.098" (2.50mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish - Post	Tin-Copper	Gold
Contact Material	Brass	Brass
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Current Rating	1A	1A
Voltage Rating	150VAC	150VAC
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Beige	Beige
RoHS Status	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

The DF14-2P-1.25H(65) is the direct substitute for the obsolete DF14-2P-1.25H(54). Both parts are manufactured by Hirose Electric Co Ltd within the same DF14 series and maintain identical electrical, mechanical, and environmental specifications.

The primary distinction is product status: DF14-2P-1.25H(54) is obsolete, while DF14-2P-1.25H(65) is active with significantly higher inventory availability (7318 pcs vs. 1089 pcs). The DF14-2P-1.25H(65) carries ROHS3 compliance compared to RoHS compliance on the obsolete variant, providing enhanced regulatory alignment for current manufacturing standards.

A minor difference exists in contact finish on the post: the obsolete part uses Tin-Copper finish while the active substitute uses Gold finish. Both finishes are compatible with solder termination and maintain equivalent electrical performance within the specified 1A current and 150VAC voltage ratings.

Frequently Asked Questions (FAQ)

Q: Can DF14-2P-1.25H(65) directly replace DF14-2P-1.25H(54) in existing designs?

A: Yes. Both connectors share identical mating pitch (0.049" / 1.25mm), position count (2), mounting type (surface mount right-angle), shrouding (4-wall), and electrical ratings (1A / 150VAC). The connectors are mechanically and electrically interchangeable.

Q: What is the significance of the different contact finish on the post?

A: The DF14-2P-1.25H(54) uses Tin-Copper post finish while DF14-2P-1.25H(65) uses Gold post finish. Both finishes are suitable for solder termination and do not affect connector performance within the specified operating parameters.

Q: Why is the DF14-2P-1.25H(54) listed as obsolete?

A: Product obsolescence is determined by manufacturer lifecycle decisions. The active DF14-2P-1.25H(65) variant provides continued support for this connector family with improved regulatory compliance (ROHS3).

Q: Are there packaging differences between these parts?

A: The DF14-2P-1.25H(54) packaging is not specified in available data. The DF14-2P-1.25H(65) is supplied in Tube packaging. Confirm packaging requirements with your procurement process.

Q: What compliance certifications apply to both parts?

A: Both connectors meet UL94 V-0 material flammability requirements, EAR99 export classification, and HTSUS 8536.69.4040 tariff classification. The DF14-2P-1.25H(65) carries ROHS3 and REACH Unaffected certifications.

Q: Are these connectors suitable for high-temperature applications?

A: Both connectors operate within -35°C to 85°C temperature range. Applications requiring operation outside this range require alternative connector selection.

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