DMH-03-S Equivalent & Substitute Parts

Part Overview

The DMH-03-S is a 3-position rectangular connector receptacle housing manufactured by Adam Tech. This component is a female socket receptacle designed for free-hanging in-line mounting applications with crimp contact termination and latch lock fastening. The part is currently active in production status with 1,863 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across manufacturers, enabling component interchangeability in applications where the primary part may have limited availability or where alternative sourcing is required for supply chain optimization.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	3
Pitch	0.165" (4.20mm)
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Latch Lock
Insulation Material	Polyamide (PA66), Nylon 6/6
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DMH-03-S are qualified based on strict equivalence of the following parameters:

Connector type: Receptacle
Contact type: Female socket
Number of positions: 3
Pitch: 0.165" (4.20mm)
Number of rows: 1
Mounting type: Free hanging (in-line)
Contact termination: Crimp
Fastening type: Latch lock
RoHS compliance: ROHS3 compliant
MSL rating: 1 (unlimited)

Two substitute parts meet these criteria: Molex 0039014031 (Mini-Fit Jr 5557 series) and Molex 2004530003 (Mini-Fit TPA2 200453 series). Both maintain electrical and mechanical compatibility with the primary part across all critical parameters.

Parameter Comparison

Parameter	DMH-03-S (Adam Tech)	0039014031 (Molex)	2004530003 (Molex)
Manufacturer	Adam Tech	Molex	Molex
Series	DMH	Mini-Fit Jr 5557	Mini-Fit TPA2 200453
Connector Type	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	3	3	3
Pitch	0.165" (4.20mm)	0.165" (4.20mm)	0.165" (4.20mm)
Number of Rows	1	1	1
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp	Crimp
Fastening Type	Latch Lock	Latch Lock	Latch Lock
Color	Natural	Natural	Black
Insulation Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Polyamide (PA), Nylon
Operating Temperature	-25°C ~ 85°C	-40°C ~ 105°C	-40°C ~ 105°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active
Inventory Availability	1,863 Pcs	145,132 Pcs	9,556 Pcs

Engineering Selection Recommendations

All three parts—DMH-03-S, 0039014031, and 2004530003—are active production components with ROHS3 compliance and MSL rating 1. Selection between these parts should be based on the following factors:

DMH-03-S (Adam Tech): Primary choice when natural color housing is required and operating temperature range of -25°C to 85°C is sufficient. Lowest inventory availability at 1,863 units.

0039014031 (Molex Mini-Fit Jr 5557): Direct parametric equivalent with natural color housing. Extended operating temperature range of -40°C to 105°C provides broader thermal performance. Highest inventory availability at 145,132 units.

2004530003 (Molex Mini-Fit TPA2 200453): Functionally equivalent with black color housing. Extended operating temperature range of -40°C to 105°C. Intermediate inventory availability at 9,556 units. Select when black housing is specified or preferred for application requirements.

Frequently Asked Questions (FAQ)

Q: Can 0039014031 directly replace DMH-03-S in all applications?

A: Yes, within the operating temperature range of -25°C to 85°C. The 0039014031 maintains all critical electrical and mechanical parameters: 3-position, 0.165" pitch, female socket receptacle, crimp termination, and latch lock fastening. The extended temperature range of -40°C to 105°C provides additional operational margin.

Q: What is the primary difference between 0039014031 and 2004530003?

A: Both parts are functionally equivalent with identical electrical and mechanical specifications. The primary difference is housing color: 0039014031 is natural, while 2004530003 is black. Both maintain the same operating temperature range and crimp contact termination.

Q: Are there any compatibility concerns with substitute parts?

A: No compatibility concerns exist for the specified substitute parts. All three components share identical connector type, contact type, position count, pitch, mounting configuration, and fastening mechanism. Contacts are not included with any housing; verify contact compatibility separately based on your application requirements.

Q: Why does 2004530003 specify "Polyamide (PA), Nylon" while DMH-03-S specifies "Polyamide (PA66), Nylon 6/6"?

A: Both materials are polyamide-based insulation suitable for the specified operating temperature and electrical requirements. The material designation difference reflects manufacturer material specifications; both meet ROHS3 compliance and MSL rating 1 requirements.

Q: Which substitute part offers the best inventory availability?

A: Molex 0039014031 provides the highest inventory availability at 145,132 units, compared to 1,863 units for DMH-03-S and 9,556 units for 2004530003.

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