DF1E-8P-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1E-8P-2.5DS is a rectangular connector header manufactured by Hirose Electric Co Ltd, configured as a through-hole, right-angle 8-position connector with 2.5mm pitch. This connector is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement.

The DF1E-8P-2.5DS features shrouded 4-wall construction with solder termination, tin-plated brass contacts, and polyamide insulation rated for -35°C to 85°C operation. Current rating is 3A with UL94 V-0 flammability compliance. The connector uses a latch holder fastening mechanism and is designed for board-to-cable/wire applications.

Key Parameters

Parameter	DF1E-8P-2.5DS Value
Manufacturer	Hirose Electric Co Ltd
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.098" (2.50mm)
Number of Positions	8
Number of Rows	1
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Latch Holder
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
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the DF1E-8P-2.5DS is constrained by the following critical parameters:

Pitch Incompatibility: The DF1E-8P-2.5DS operates at 2.5mm (0.098") mating pitch. All identified substitute parts operate at 2.54mm (0.100") pitch. This represents a 0.04mm difference per position, which accumulates across the 8-position connector. Direct mechanical substitution requires PCB redesign or adapter solutions.

Connector Configuration: All substitutes maintain the same core mechanical and electrical architecture: 8-position, single-row, through-hole, right-angle, shrouded 4-wall headers with solder termination and latch holder fastening.

Contact Material and Finish: The DF1E-8P-2.5DS uses tin-plated brass contacts. Substitute parts are available with either tin or gold plating on brass or phosphor bronze contact materials. Contact finish variations do not prevent functional substitution but may affect corrosion resistance and mating force characteristics.

Operating Temperature Range: The DF1E-8P-2.5DS operates from -35°C to 85°C. All substitute parts operate across -40°C to 105°C or -65°C to 105°C ranges, providing extended thermal capability.

Compliance Status: The DF1E-8P-2.5DS is RoHS non-compliant. Substitute parts from Molex (0705530007, 0705530042) are ROHS3 compliant. TE Connectivity parts show mixed compliance status (RoHS non-compliant, Not applicable, or RoHS Compliant depending on variant).

Parameter Comparison

Parameter	DF1E-8P-2.5DS	0705530007	0705530042	103634-7	103635-7	103672-7	103673-7	103904-7	103906-7	5-103634-7	5-103635-7
Manufacturer	Hirose	Molex	Molex	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity	TE Connectivity
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 Positions	8	8	8	8	8	8	8	8	8	8	8
Number of Rows	1	1	1	1	1	1	1	1	1	1	1
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
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	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass
Contact Finish - Mating	Tin	Gold	Tin	Tin-Lead	Gold	Tin-Lead	Gold	Gold	Gold	Tin	Gold
Insulation Material	Polyamide (PA), Nylon	Polyester, Glass Filled	Polyester, Glass Filled	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic
Operating Temperature	-35°C ~ 85°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	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
Current Rating	3A	Not specified	Not specified	3A	3A	3A	3A	3A	3A	3A	3A
Voltage Rating	Not specified	250V	250V	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified
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
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	Not applicable	Not applicable	Not applicable	Not applicable	Not applicable	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Pitch Consideration: The 0.04mm pitch difference between the DF1E-8P-2.5DS (2.5mm) and all substitute parts (2.54mm) accumulates to 0.32mm across the 8-position span. This requires PCB layout modification or mechanical adapter solutions for direct replacement.

Active Product Status: All identified substitute parts maintain active product status, ensuring long-term availability and supply chain continuity. The DF1E-8P-2.5DS obsolete status necessitates transition to an active equivalent.

RoHS Compliance Path: For applications requiring RoHS compliance, Molex 0705530007 and 0705530042 are ROHS3 compliant. TE Connectivity 5-103634-7 and 5-103635-7 are RoHS Compliant. The original DF1E-8P-2.5DS is RoHS non-compliant.

Contact Finish Selection:

Tin-plated variants (0705530042, 103634-7, 103672-7, 5-103634-7) provide cost-effective substitution with equivalent corrosion resistance to the original tin-plated DF1E-8P-2.5DS.
Gold-plated variants (0705530007, 103635-7, 103673-7, 103904-7, 103906-7, 5-103635-7) offer enhanced contact reliability and lower mating force.

Temperature Range: All substitute parts extend the operating temperature range to -40°C to 105°C or -65°C to 105°C, exceeding the original -35°C to 85°C specification.

Insulation Material: The DF1E-8P-2.5DS uses polyamide insulation. Substitute parts use thermoplastic or polyester glass-filled insulation. These materials maintain UL94 V-0 flammability compliance and are functionally equivalent for the specified applications.

Current Rating: TE Connectivity parts maintain the 3A current rating of the original connector. Molex parts do not specify current rating in the provided data.

Frequently Asked Questions (FAQ)

Q: Can the DF1E-8P-2.5DS be directly replaced with a 2.54mm pitch substitute without PCB modification?

A: No. The 0.04mm pitch difference per position accumulates to 0.32mm across the 8-position connector. Direct mechanical substitution requires either PCB redesign to accommodate 2.54mm pitch spacing or use of a mechanical adapter. The connector housings and contact positions are not interchangeable between 2.5mm and 2.54mm pitch standards.

Q: Which substitute part offers the closest electrical and mechanical match to the DF1E-8P-2.5DS?

A: 5-103634-7 (TE Connectivity AMPMODU MTE series) provides the closest functional match: 8-position, single-row, through-hole right-angle header with tin contact finish, 3A current rating, UL94 V-0 flammability rating, and RoHS Compliant status. The primary difference is the 2.54mm pitch requirement and thermoplastic insulation material.

Q: Are the Molex 0705530007 and 0705530042 parts interchangeable with each other?

A: Yes, mechanically and electrically. Both are Molex SL 70553 series 8-position right-angle headers with 2.54mm pitch, identical mechanical dimensions, and identical electrical ratings. The primary difference is contact finish: 0705530007 features gold plating while 0705530042 features tin plating. Selection depends on application corrosion resistance requirements and cost considerations.

Q: What is the difference between TE Connectivity parts with and without the "5-" prefix?

A: Parts with the "5-" prefix (5-103634-7, 5-103635-7) are RoHS Compliant or RoHS Compliant status. Parts without the prefix (103634-7, 103635-7, etc.) show RoHS non-compliant or Not applicable status. The "5-" designation indicates compliance with RoHS directives. Mechanical and electrical specifications remain identical between prefixed and non-prefixed variants of the same base part number.

Q: Can gold-plated contact variants be used in applications originally designed for tin-plated contacts?

A: Yes. Gold-plated contacts (0705530007, 103635-7, 103673-7, 103904-7, 103906-7, 5-103635-7) are functionally compatible with tin-plated applications. Gold plating provides superior corrosion resistance and lower contact resistance, making it suitable for all applications where tin plating was originally specified. Mating force characteristics may differ slightly due to surface finish properties.

Q: What is the significance of the "Board Lock" and "Keying Slot" features listed for some TE Connectivity parts?

A: Board Lock and Keying Slot are mechanical features that enhance connector retention and polarization. Board Lock provides additional mechanical retention to the PCB. Keying Slot prevents incorrect mating orientation. These features do not affect electrical compatibility but provide enhanced mechanical robustness for applications requiring higher vibration resistance or mating security.

Q: Are all substitute parts suitable for automotive applications?

A: Molex 0705530007 and 0705530042 list automotive applications. TE Connectivity parts (103634-7, 103635-7, 103672-7, 103673-7, 103904-7, 103906-7, 5-103634-7, 5-103635-7) list automotive, general purpose, medical, and telecommunications applications. The DF1E-8P-2.5DS does not specify applications. Automotive suitability depends on specific application requirements and qualification standards.

Q: What inventory levels are available for each substitute part?

A: Molex 0705530007 has 22,597 units in stock. TE Connectivity 5-103634-7 has the highest inventory at 34,753 units. TE Connectivity 103673-7 has 7,338 units. Other parts range from 703 to 3,652 units. Molex 0705530042 has 1,263 units. Inventory levels support immediate procurement for all identified substitutes.

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