DF1B-7P-2.5DS Equivalent & Substitute Parts

Part Overview

The DF1B-7P-2.5DS is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle mounting with 7 positions at 0.098" (2.50mm) pitch. This connector is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement. The part features shrouded 4-wall construction with push-pull fastening and tin-plated brass contacts suitable for board-to-cable/wire applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	7
Pitch - Mating	0.098" (2.50mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature	-35°C ~ 85°C
Voltage Rating	250V
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution logic for the DF1B-7P-2.5DS is based on the following critical parameters:

Direct Equivalents (Same Pitch - 2.50mm):

DF1BZ-7P-2.5DS: Active product from the same DF1B series with identical pitch, position count, mounting type, and shrouding. Differs in product status (active vs. obsolete) and RoHS compliance.
DF1B-7P-2.5DS(01): Active product from the DF1B series with identical pitch, position count, mounting type, and shrouding. Differs in contact finish (gold vs. tin) and voltage rating (250V maintained).

Cross-Pitch Substitutes (2.54mm Pitch):

102203-4, 5-102523-5, 5-103361-5: TE Connectivity AMPMODU Mod II series connectors with 0.100" (2.54mm) pitch. These represent a pitch deviation of 0.02mm and require mechanical compatibility verification. All maintain 7-position count, through-hole right-angle mounting, shrouded 4-wall construction, and push-pull fastening. Operating temperature range extends to -65°C ~ 105°C.

Substitution eligibility is determined by: connector type, contact type, number of positions, mounting configuration, shrouding style, termination method, and fastening mechanism. Pitch tolerance, voltage rating, contact finish, and RoHS compliance are secondary considerations dependent on application requirements.

Parameter Comparison

Parameter	DF1B-7P-2.5DS	DF1BZ-7P-2.5DS	DF1B-7P-2.5DS(01)	102203-4	5-102523-5	5-103361-5
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Hirose Electric Co Ltd	TE Connectivity AMP	TE Connectivity AMP	TE Connectivity AMP
Series	DF1B	DF1B	DF1B	AMPMODU Mod II	AMPMODU Mod II	AMPMODU Mod II
Product Status	Obsolete	Active	Active	Active	Active	Active
Connector Type	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	7	7	7	7	7	7
Pitch - Mating	0.098" (2.50mm)	0.098" (2.50mm)	0.098" (2.50mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	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
Shrouding	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
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.177" (4.50mm)	0.177" (4.50mm)	0.177" (4.50mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.142" (3.60mm)	0.142" (3.60mm)	0.142" (3.60mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.110" (2.79mm)
Insulation Height	0.224" (5.69mm)	0.224" (5.69mm)	0.224" (5.69mm)	0.214" (5.44mm)	0.214" (5.44mm)	0.214" (5.44mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin	Tin	Gold	Gold	Tin	Gold
Contact Material	Brass	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Polyamide (PA), Nylon	Thermoplastic	Thermoplastic	Thermoplastic
Operating Temperature	-35°C ~ 85°C	-35°C ~ 85°C	-35°C ~ 85°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Voltage Rating	250V	150V	250V	Not specified	Not specified	Not specified
Current Rating	Not specified	Not specified	Not specified	3A	3A	3A
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	RoHS non-compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Replacement (Same Pitch - 2.50mm):

DF1BZ-7P-2.5DS is the primary active equivalent within the Hirose DF1B series. This part maintains identical mechanical and electrical specifications with the exception of voltage rating (150V vs. 250V) and achieves ROHS3 compliance, addressing regulatory requirements for new designs. Inventory availability is adequate at 1,107 pieces.

DF1B-7P-2.5DS(01) is the manufacturer-recommended active alternative, maintaining the original 250V voltage rating and achieving RoHS compliance. This variant features gold contact finish on mating surfaces, providing enhanced corrosion resistance compared to the tin-plated original. Inventory availability is 884 pieces.

For Cross-Pitch Substitution (2.54mm Pitch):

TE Connectivity AMPMODU Mod II series connectors (102203-4, 5-102523-5, 5-103361-5) represent functional alternatives with a 0.02mm pitch deviation. These parts are active products with extended operating temperature range (-65°C ~ 105°C) and specified current rating (3A). Selection among these three variants depends on contact finish requirements and RoHS compliance status:

102203-4: Gold mating finish, RoHS non-compliant
5-102523-5: Tin mating finish, RoHS compliant
5-103361-5: Gold mating finish, RoHS compliant

Cross-pitch substitution requires mechanical compatibility verification with mating connectors and PCB footprint accommodation.

Frequently Asked Questions (FAQ)

Q: Can DF1BZ-7P-2.5DS directly replace DF1B-7P-2.5DS in existing designs?

A: DF1BZ-7P-2.5DS maintains identical pitch (2.50mm), position count (7), mounting type (through-hole right-angle), and shrouding (4-wall). The primary difference is voltage rating: DF1BZ-7P-2.5DS is rated at 150V versus the original 250V. Direct replacement is mechanically compatible; voltage rating compatibility must be verified against application requirements.

Q: What is the difference between DF1BZ-7P-2.5DS and DF1B-7P-2.5DS(01)?

A: Both are active Hirose DF1B series products with identical pitch and mechanical specifications. DF1B-7P-2.5DS(01) maintains the original 250V voltage rating and features gold contact finish on mating surfaces. DF1BZ-7P-2.5DS has a 150V voltage rating and tin contact finish. Selection depends on voltage requirements and contact finish specifications.

Q: Are TE Connectivity AMPMODU Mod II connectors (102203-4, 5-102523-5, 5-103361-5) compatible with DF1B-7P-2.5DS?

A: These connectors share identical functional characteristics (7-position, through-hole right-angle, shrouded 4-wall, push-pull fastening) but operate at 2.54mm pitch versus the original 2.50mm pitch. This 0.02mm deviation requires mechanical compatibility verification with mating connectors and PCB footprint layout. Contact geometry and insulation height also differ slightly.

Q: What are the RoHS compliance differences among substitute parts?

A: DF1B-7P-2.5DS (original) is RoHS non-compliant. DF1BZ-7P-2.5DS achieves ROHS3 compliance. DF1B-7P-2.5DS(01) is RoHS compliant. Among TE Connectivity parts: 102203-4 is RoHS non-compliant; 5-102523-5 and 5-103361-5 are RoHS compliant. RoHS compliance selection depends on regulatory requirements for the target application and market.

Q: How do contact finish options affect part selection?

A: The original DF1B-7P-2.5DS uses tin-plated contacts. DF1BZ-7P-2.5DS maintains tin finish. DF1B-7P-2.5DS(01) features gold finish on mating contacts, providing enhanced corrosion resistance and lower contact resistance. TE Connectivity alternatives offer both tin (5-102523-5) and gold (102203-4, 5-103361-5) options. Contact finish selection depends on environmental exposure, signal integrity requirements, and cost considerations.

Q: What packaging formats are available?

A: DF1B-7P-2.5DS and DF1BZ-7P-2.5DS are supplied in bulk packaging. DF1B-7P-2.5DS(01) is supplied in bulk packaging. TE Connectivity AMPMODU Mod II connectors (102203-4, 5-102523-5, 5-103361-5) are supplied in tube packaging. Packaging format affects handling, storage, and automated assembly compatibility.

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