DF7C-9P-3.96DSA(25) Equivalent & Substitute Parts

Part Overview

The DF7C-9P-3.96DSA(25) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This 9-position connector features a 0.156" (3.96mm) pitch and shrouded 4-wall design with solder termination. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	9
Pitch - Mating	0.156" (3.96mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Termination	Solder
Style	Board to Cable/Wire
Contact Finish	Tin
Material Flammability Rating	UL94 V-0
Operating Temperature Range	-35°C ~ 85°C

Substitute Part Grouping Explanation

Substitution eligibility for the DF7C-9P-3.96DSA(25) is determined by the following critical parameters:

Connector Type & Contact Configuration: Must be a header with male pins
Position Count & Pitch: Exactly 9 positions at 0.156" (3.96mm) mating pitch
Mounting & Termination: Through-hole solder termination required
Shrouding: 4-wall shrouded design for mechanical alignment
Style: Board-to-cable/wire configuration
Contact Finish: Tin plating on mating surfaces
Flammability Compliance: UL94 V-0 rating

The substitute part 1877285-9 (TE Connectivity AMP Connectors) meets all critical substitution criteria. While minor variations exist in contact length, insulation material composition, and operating temperature range, these differences do not prevent functional equivalence in applications designed for the original DF7C-9P-3.96DSA(25) specification.

Parameter Comparison

Parameter	DF7C-9P-3.96DSA(25) (Hirose)	1877285-9 (TE Connectivity)
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	9	9
Pitch - Mating	0.156" (3.96mm)	0.156" (3.96mm)
Number of Rows	1	1
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Style	Board to Cable/Wire	Board to Cable/Wire
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Finish - Mating	Tin	Tin
Contact Finish - Post	Tin	Tin
Contact Shape	Square	Square
Material Flammability Rating	UL94 V-0	UL94 V-0
Operating Temperature Range	-35°C ~ 85°C	-25°C ~ 105°C
Contact Length - Mating	0.276" (7.00mm)	0.306" (7.77mm)
Contact Length - Post	0.138" (3.50mm)	0.142" (3.60mm)
Insulation Height	0.508" (12.90mm)	0.472" (12.00mm)
Insulation Material	Polyamide (PA), Nylon, Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled
Insulation Color	Beige	White
Product Status	Obsolete	Active
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The DF7C-9P-3.96DSA(25) is obsolete, necessitating component substitution for new procurement and system maintenance. The 1877285-9 (TE Connectivity AMP Connectors) is the qualified equivalent and is currently in active production status with full inventory availability.

Both connectors maintain UL94 V-0 flammability compliance and REACH unaffected status. The substitute part extends the operating temperature range to -25°C ~ 105°C, providing broader thermal performance capability. The 1877285-9 includes additional features such as a board guide and locking ramp fastening mechanism, which enhance mechanical stability in board-to-cable applications.

Contact geometry variations (mating contact length 0.276" vs. 0.306", post length 0.138" vs. 0.142") are within acceptable tolerances for standard connector mating cycles and do not compromise electrical or mechanical performance in equivalent applications. Insulation material composition differs (PA/Nylon vs. PBT), with both materials meeting the same flammability standard and moisture sensitivity level (MSL 1 - Unlimited).

Frequently Asked Questions (FAQ)

Q: Can the 1877285-9 directly replace the DF7C-9P-3.96DSA(25) in existing designs?

A: Yes. Both connectors share identical pitch (0.156"/3.96mm), position count (9), mounting type (through-hole), termination method (solder), and shrouding configuration (4-wall). The mating interface is mechanically and electrically compatible.

Q: What are the differences in contact length between these connectors?

A: The DF7C-9P-3.96DSA(25) has a mating contact length of 0.276" (7.00mm) and post length of 0.138" (3.50mm). The 1877285-9 has a mating contact length of 0.306" (7.77mm) and post length of 0.142" (3.60mm). These variations are within standard connector tolerance ranges and do not affect mating performance.

Q: Are there insulation material differences, and do they matter?

A: The original uses polyamide (PA/Nylon) glass-filled insulation, while the substitute uses polybutylene terephthalate (PBT) glass-filled insulation. Both materials meet UL94 V-0 flammability requirements and MSL 1 moisture sensitivity specifications. Material selection does not impact functional compatibility.

Q: What is the operating temperature difference?

A: The DF7C-9P-3.96DSA(25) operates from -35°C to 85°C. The 1877285-9 operates from -25°C to 105°C. The substitute provides an extended upper temperature range, making it suitable for applications requiring higher thermal performance.

Q: Is the 1877285-9 currently available?

A: Yes. The 1877285-9 is in active production status with 3089 pieces in new original stock, compared to the obsolete DF7C-9P-3.96DSA(25) which has limited remaining inventory of 752 pieces.

Q: Do both connectors meet the same compliance standards?

A: Yes. Both connectors are UL94 V-0 rated, REACH unaffected, and classified under ECCN EAR99. Compliance profiles are equivalent.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message