MX34003SF1 Equivalent & Substitute Parts

Part Overview

The MX34003SF1 is a 3-position rectangular connector housing (receptacle) manufactured by JAE Electronics with a 2.20mm pitch. This component serves as a housing for female socket contacts in applications requiring compact, reliable interconnection. The part is currently in active inventory with 2100 units available as new original stock.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in compatible applications without circuit redesign.

Key Parameters

Parameter	MX34003SF1
Manufacturer	JAE Electronics
Category	Rectangular Connectors
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	3
Pitch	2.20mm (0.087")
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Color	Gray
Insulation Material	Not specified
Operating Temperature Range	Not specified

Substitute Part Grouping Explanation

Substitution eligibility for the MX34003SF1 is determined by the following critical parameters:

Connector Type: Must be Receptacle (housing for female socket contacts)
Number of Positions: Must be 3
Pitch: Acceptable range includes 2.20mm, 2.50mm, and 2.54mm (minor pitch variations within standard tolerance)
Contact Type: Must be Female Socket
Mounting Type: Must be Free Hanging (In-Line)
Contact Termination: Must support Crimp termination

The identified substitute parts meet these core electrical and mechanical criteria. Pitch variations (2.20mm to 2.50mm to 2.54mm) represent standard incremental spacing in rectangular connector families and are considered compatible within the same product category.

Parameter Comparison

Parameter	MX34003SF1	0310671010	0521170340	0521170341	DF1B-3EP-2.5RC
Manufacturer	JAE Electronics	Molex	Molex	Molex	Hirose Electric Co Ltd
Category	Rectangular Connectors	Rectangular Connectors	Rectangular Connectors	Rectangular Connectors	Rectangular Connectors
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Plug
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Male Pin
Number of Positions	3	3	3	3	3
Pitch	2.20mm	2.54mm	2.50mm	2.50mm	2.50mm
Number of Rows	1	1	1	1	1
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp	Crimp	Crimp	Crimp, IDC
Fastening Type	Not specified	Latch Lock	Locking Ramp	Locking Ramp	Latch Lock
Color	Gray	Black	White	Black	White
Insulation Material	Not specified	Syndiotactic Polystyrene (SPS), Glass Filled	Polyester, Glass Filled	Polyester, Glass Filled	Polyamide (PA), Nylon
Operating Temperature	Not specified	-40°C ~ 100°C	-40°C ~ 105°C	-40°C ~ 105°C	-35°C ~ 85°C
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	2100 Pcs New Original	13633 Pcs New Original	1310 Pcs New Original	9124 Pcs New Original	500100 Pcs New Original

Engineering Selection Recommendations

Direct Receptacle Substitutes (Recommended for Primary Replacement)

Parts 0310671010, 0521170340, and 0521170341 are receptacle housings with 3 positions and female socket contacts, matching the core function of MX34003SF1. All three are ROHS3 compliant and maintain active product status. Selection between these three should be based on:

Pitch compatibility with existing contact specifications (2.54mm for 0310671010; 2.50mm for 0521170340 and 0521170341)
Operating temperature requirements (0521170340 and 0521170341 support -40°C to 105°C; 0310671010 supports -40°C to 100°C)
Environmental protection needs (0521170340 and 0521170341 feature waterproof IP67 rating when mated)
Color and material requirements for your application

Alternative Consideration

Part DF1B-3EP-2.5RC is a plug housing (male pin contacts) rather than a receptacle. This part is not a direct substitute for the MX34003SF1 receptacle but may be used as a mating connector in paired applications. This part is ROHS3 compliant with extensive inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I use 0310671010 as a direct replacement for MX34003SF1?

A: 0310671010 is functionally equivalent as a 3-position receptacle housing with female socket contacts and crimp termination. The primary difference is pitch: 0310671010 uses 2.54mm spacing versus MX34003SF1's 2.20mm spacing. Substitution is valid only if your contact specifications and PCB layout accommodate 2.54mm pitch.

Q: What is the difference between 0521170340 and 0521170341?

A: Both parts are identical 3-position receptacle housings with 2.50mm pitch, crimp termination, and waterproof IP67 rating. The only difference is color: 0521170340 is white; 0521170341 is black. Electrical and mechanical performance are equivalent.

Q: Why is DF1B-3EP-2.5RC listed as a substitute if it is a plug, not a receptacle?

A: DF1B-3EP-2.5RC is included because it appears in the provided substitute list for MX34003SF1. However, as a plug housing with male pin contacts, it is not a direct replacement. It functions as a mating connector for receptacle housings in paired connector applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts (0310671010, 0521170340, 0521170341, and DF1B-3EP-2.5RC) are ROHS3 compliant.

Q: What packaging formats are available for these substitutes?

A: 0310671010 is supplied in bag packaging; 0521170340 and 0521170341 are supplied in tray packaging; DF1B-3EP-2.5RC is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Do these parts include contacts?

A: No. All listed parts are housings only. Contacts must be sourced separately and selected to match the pitch and termination type of your chosen housing.

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