DF1E-3P-2.5DS Equivalent & Substitute Parts

Part Overview

The Hirose Electric DF1E-3P-2.5DS is a shrouded right-angle rectangular connector header with 3 positions at 2.5mm pitch, designed for through-hole board-to-cable/wire applications. This connector features male pins with tin-plated brass contacts, polyamide insulation, and a 3A current rating across an operating temperature range of -35°C to 85°C. The product is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	DF1E-3P-2.5DS
Connector Type	Header
Contact Type	Male Pin
Number of Positions	3
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Material	Brass
Contact Finish - Mating	Tin
Insulation Material	Polyamide (PA), Nylon
Operating Temperature	-35°C ~ 85°C
Current Rating	3A
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the DF1E-3P-2.5DS is constrained by the following critical parameters:

Pitch Compatibility: The original part operates at 2.5mm (0.098") pitch. Substitute parts must maintain mechanical and electrical compatibility with mating connectors designed for this pitch. The substitute list includes parts at 2.54mm (0.100") pitch, which represents a 0.04mm deviation. This minor pitch difference may require mechanical tolerance verification in the application.

Connector Configuration: All substitutes maintain 3-position, single-row, shrouded 4-wall headers with right-angle through-hole mounting and solder termination, ensuring form-factor compatibility.

Electrical Performance: Substitutes must support the 3A current requirement and maintain UL94 V-0 flammability rating. Operating temperature ranges vary among substitutes, with some extending to -40°C to 105°C, providing broader environmental coverage than the original -35°C to 85°C specification.

Contact Material & Finish: The original part uses tin-plated brass contacts. Substitutes employ either tin or gold plating on phosphor bronze or brass materials. Contact finish variations do not preclude substitution but should be evaluated for corrosion resistance and mating force requirements in the specific application.

Compliance Status: The original DF1E-3P-2.5DS is RoHS non-compliant. Active substitute options from Molex and TE Connectivity offer ROHS3 compliance or non-applicable status, supporting modern procurement requirements.

Parameter Comparison

Parameter	DF1E-3P-2.5DS	0705530002	0705530037	0705530107	0705536002	0705555002	103634-2	103635-2	103672-2	103673-2	103904-2
Manufacturer	Hirose	Molex	Molex	Molex	Molex	Molex	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	3	3	3	3	3	3	3	3	3	3	3
Pitch - Mating	0.098" (2.50mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1	1	1	1	1	1	1	1	1	1
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder
Contact Material	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Brass	Brass	Brass	Brass	Brass
Contact Finish - Mating	Tin	Gold	Tin	Gold	Gold	Tin	Tin-Lead	Gold	Tin-Lead	Gold	Gold
Insulation Material	Polyamide (PA), Nylon	Polyester, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic
Operating Temperature	-35°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
Current Rating	3A	—	—	—	—	—	3A	3A	3A	3A	3A
Voltage Rating	—	250V	250V	250V	250V	250V	—	—	—	—	—
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	Not applicable	Not applicable	Not applicable	RoHS non-compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Molex SL 70553 Series (0705530002, 0705530037, 0705530107, 0705536002): These connectors are active products with ROHS3 compliance, supporting modern procurement standards. All maintain the required 3-position, right-angle through-hole configuration with 4-wall shrouding. Operating temperature extends to 105°C, exceeding the original specification. Contact finish options include gold and tin plating on phosphor bronze. Packaging varies between tube and bag formats. These parts are suitable for applications requiring RoHS compliance and extended temperature performance.

Molex SL 70555 Series (0705555002): This variant is an active product with ROHS3 compliance and features board guide functionality. It differs from the standard SL 70553 series in that only 2 of 3 positions are loaded. This configuration is applicable only if the application design accommodates partial position loading.

TE Connectivity AMPMODU MTE Series (103634-2, 103635-2, 103672-2, 103673-2, 103904-2): These connectors provide the broadest operating temperature range (-65°C to 105°C) and maintain 3A current rating matching the original specification. Contact materials are brass with tin-lead or gold plating. Features include keying slots and board lock options on select models (103672-2, 103673-2, 103904-2), enhancing mechanical retention. RoHS status varies; 103634-2 and 103904-2 are RoHS non-compliant, while 103635-2, 103672-2, and 103673-2 are not applicable for RoHS classification. All are active products suitable for automotive, general purpose, medical, and telecommunications applications.

Pitch Consideration: All substitute parts operate at 2.54mm (0.100") pitch, representing a 0.04mm increase from the original 2.5mm specification. Mechanical compatibility with existing mating connectors and PCB layouts must be verified before implementation.

Frequently Asked Questions (FAQ)

Q: Can I directly replace DF1E-3P-2.5DS with a 2.54mm pitch substitute?

A: Direct replacement requires verification that mating connectors and PCB footprints accommodate 2.54mm pitch. The 0.04mm pitch difference may exceed mechanical tolerances in precision applications. Consult PCB layout and mating connector specifications before substitution.

Q: Which substitute offers the best compliance for new designs?

A: Molex SL 70553 series parts (0705530002, 0705530037, 0705530107, 0705536002) and TE Connectivity 103635-2, 103672-2, and 103673-2 provide ROHS3 compliance or non-applicable status, supporting modern procurement requirements. All are active products with extended operating temperature ranges.

Q: What is the difference between tin and gold contact finishes?

A: Tin-plated contacts (0705530037, 0705555002, 103634-2, 103672-2) offer cost efficiency and adequate corrosion resistance for general applications. Gold-plated contacts (0705530002, 0705530107, 0705536002, 103635-2, 103673-2, 103904-2) provide superior corrosion resistance and lower contact resistance, beneficial for high-reliability or harsh environment applications. Contact finish thickness varies among parts and should be evaluated for specific environmental requirements.

Q: Does packaging format affect electrical performance?

A: Packaging format (tube or bag) does not affect electrical or mechanical performance. Selection should be based on procurement volume, handling requirements, and inventory management practices.

Q: Are TE Connectivity parts with board lock features compatible with standard applications?

A: Board lock features (103672-2, 103673-2, 103904-2) provide enhanced mechanical retention without affecting electrical compatibility. These features are beneficial in vibration-prone or high-shock environments but are not required for standard applications. Parts without board lock (103634-2, 103635-2) remain fully compatible with standard designs.

Q: What is the significance of the extended operating temperature range in substitute parts?

A: Substitute parts from both Molex and TE Connectivity extend operating temperature to 105°C (or -65°C to 105°C for TE Connectivity), compared to the original -35°C to 85°C range. This broader specification provides design margin for thermal management and supports applications in elevated ambient or self-heating environments.

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