ESPM03100 Equivalent & Substitute Parts

Part Overview

The ESPM03100 is a 3-position wire-to-board terminal block manufactured by Amphenol PCD, designed for horizontal PCB mounting with 0.250" (6.35mm) pitch spacing. This component is classified as an active product and serves as a connection interface for applications requiring screw-based wire termination with side entry configuration. Equivalent and substitute parts are identified to provide procurement flexibility, inventory alternatives, and supply chain continuity for this terminal block category.

Key Parameters

Parameter	Value
Positions Per Level	3
Pitch	0.250" (6.35mm)
Mating Orientation	Horizontal with Board
Current Rating	30 A
Voltage Rating	300 V
Wire Gauge	10-30 AWG
Mounting Type	Through Hole
Wire Termination	Screw - Rising Cage Clamp
Features	Interlocking (Side)
Housing Material	Polyamide (PA66), Nylon 6/6
Operating Temperature	-40°C ~ 110°C
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts for the ESPM03100 are qualified based on the following critical parameters that must align for functional equivalence:

Electrical Compatibility: Current rating (30 A), voltage rating (300 V), and wire gauge acceptance range must meet or exceed the original specification
Mechanical Compatibility: Pitch (0.250" / 6.35mm), number of positions (3), mating orientation (horizontal with board), and mounting type (through hole) must be identical
Termination Method: Screw-based wire termination with rising cage clamp configuration
Physical Configuration: Side entry interlocking feature and polyamide housing material
Environmental Compliance: RoHS compliance status and operating temperature range

The identified substitutes (0393800103 and 796740-3) meet these core criteria and are therefore electrically and mechanically interchangeable with the ESPM03100 for PCB-level applications.

Parameter Comparison

Parameter	ESPM03100 (Amphenol PCD)	0393800103 (Molex)	796740-3 (TE Connectivity)
Positions Per Level	3	3	3
Pitch	0.250" (6.35mm)	0.250" (6.35mm)	0.250" (6.35mm)
Mating Orientation	Horizontal with Board	Horizontal with Board	Horizontal with Board
Current Rating	30 A	30 A	30 A
Voltage Rating	300 V	300 V	300 V
Wire Gauge	10-30 AWG	10-30 AWG	10-24 AWG
Mounting Type	Through Hole	Through Hole	Through Hole
Wire Termination	Screw - Rising Cage Clamp	Screw	Screw - Rising Cage Clamp
Features	Interlocking (Side)	Interlocking (Side)	Interlocking (Side)
Housing Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Operating Temperature	-40°C ~ 110°C	110°C	Not specified
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ESPM03100 (Amphenol PCD): Primary specification. Active product status with RoHS compliance. Specified operating temperature range of -40°C to 110°C provides defined thermal performance envelope. Torque specification of 0.8 Nm is documented.

0393800103 (Molex Eurostyle 39380): Direct electrical and mechanical equivalent. ROHS3 compliant with REACH affected status. Operating temperature limited to 110°C maximum (no lower bound specified). Wire gauge range identical to ESPM03100. Screw termination specified without rising cage clamp designation, though side entry interlocking feature is present. Suitable for applications where upper temperature limit of 110°C is acceptable and lower temperature performance is not critical.

796740-3 (TE Connectivity Buchanan): Electrically compatible with wire gauge range of 10-24 AWG (narrower than ESPM03100). ROHS3 compliant. Rising cage clamp termination matches ESPM03100 specification. Operating temperature not specified. Torque specification of 0.79 Nm is comparable to ESPM03100. Suitable for applications within the 10-24 AWG wire range where temperature performance is not a limiting factor.

Frequently Asked Questions (FAQ)

Q: Can 0393800103 replace ESPM03100 in applications requiring -40°C operation? A: No. The 0393800103 specifies only 110°C maximum operating temperature without a defined lower temperature limit. Applications requiring -40°C minimum operation must use ESPM03100 or 796740-3.

Q: Is 796740-3 suitable for 30 AWG wire applications? A: No. The 796740-3 wire gauge range is 10-24 AWG, which does not include 30 AWG. The ESPM03100 and 0393800103 both support 10-30 AWG and are required for 30 AWG applications.

Q: What is the difference in screw termination between ESPM03100 and 0393800103? A: ESPM03100 specifies screw termination with rising cage clamp configuration. The 0393800103 specifies screw termination without explicit rising cage clamp designation, though both feature side entry interlocking. Functional compatibility is maintained for standard screw-based wire termination applications.

Q: Are all three parts RoHS compliant? A: ESPM03100 is RoHS compliant. Both 0393800103 and 796740-3 are ROHS3 compliant, which represents a more recent RoHS standard iteration and is compatible with RoHS requirements.

Q: What packaging differences exist between these parts? A: ESPM03100 is supplied in tray packaging. Both 0393800103 and 796740-3 are supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

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