EM257511HC Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The EM257511HC is an 11-position terminal block header manufactured by Eaton Electronics Division, part of the Euro-Mag EM2575 series. This component is a male pin, shrouded (4-side) header with 0.200" (5.08mm) pitch spacing, designed for right-angle through-hole mounting and solder termination. The part is currently active in production with 779 pieces in stock. Terminal block headers serve as connection interfaces in electronic assemblies, providing reliable electrical termination for wire-to-board applications. Equivalent and substitute parts are identified when design flexibility, inventory availability, or supply chain considerations require alternative sourcing options that maintain functional compatibility.

Key Parameters

Parameter	Value
Number of Positions	11
Pitch	0.200" (5.08mm)
Header Orientation	90°, Right Angle
Shrouding Configuration	4-Side Shrouded
Termination Style	Solder
Mounting Type	Through Hole
Current Rating (UL)	16 A
Voltage Rating (UL)	300 V
Operating Temperature Range	-40°C ~ 105°C
Contact Material	Brass
Housing Material	Thermoplastic
Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the EM257511HC is determined by strict alignment of the following critical parameters:

Primary Compatibility Criteria:

Number of positions: 11 (fixed requirement)
Pitch spacing: 0.200" (5.08mm) (fixed requirement)
Header orientation: 90°, right angle (fixed requirement)
Termination style: Solder (fixed requirement)
Mounting type: Through hole (fixed requirement)
Voltage rating: 300 V UL minimum (fixed requirement)
Operating temperature range: -40°C ~ 105°C (fixed requirement)
Flammability rating: UL94 V-0 (fixed requirement)

Secondary Compatibility Considerations:

Shrouding configuration: 4-side shrouded (mechanical fit requirement)
Current rating: 16 A UL (electrical performance requirement)
Contact material: Brass (electrical and corrosion resistance requirement)
Housing material: Thermoplastic or equivalent polymer (mechanical requirement)

The identified substitute parts meet all primary compatibility criteria. Variations in secondary parameters are noted in the comparison table and do not preclude functional substitution in applications where the substitute specifications are equal to or exceed the main part requirements.

Parameter Comparison

Parameter	EM257511HC (Eaton)	0395325011 (Molex)	0395326011 (Molex)
Manufacturer	Eaton - Electronics Division	Molex	Molex
Series	Euro-Mag EM2575	Eurostyle ESE 39532	Eurostyle ESE 39532
Number of Positions	11	11	11
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)
Header Orientation	90°, Right Angle	90°, Right Angle	90°, Right Angle
Shrouding Configuration	4-Side Shrouded	2-Side Shrouded	4-Side Shrouded
Termination Style	Solder	Solder	Solder
Mounting Type	Through Hole	Through Hole	Through Hole
Current Rating (UL)	16 A	15 A	15 A
Voltage Rating (UL)	300 V	300 V	300 V
Operating Temperature Range	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Contact Material	Brass	Brass	Brass
Housing Material	Thermoplastic	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Contact Mating Finish	Tin	Tin	Tin
Contact Tail Length	0.177" (4.50mm)	0.150" (3.81mm)	0.150" (3.81mm)
Insulation Height	0.327" (8.30mm)	0.327" (8.30mm)	0.472" (12.00mm)
Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Active	Active	Active
Inventory Status	779 Pcs In Stock	1456 Pcs In Stock	1834 Pcs In Stock

Engineering Selection Recommendations

EM257511HC (Eaton Euro-Mag EM2575):

Primary choice when 4-side shrouding and 16 A current rating are required
Recommended for applications requiring maximum electrical performance within the 11-position, 5.08mm pitch category
Active product status with established supply chain
ROHS3 compliant for regulated markets

0395326011 (Molex Eurostyle ESE 39532):

Direct mechanical and electrical equivalent with 4-side shrouding configuration
Suitable for applications where 15 A current rating meets design requirements
Higher insulation height (0.472" vs. 0.327") provides additional creepage distance in high-voltage applications
Polyamide (PA66) housing offers enhanced thermal stability
Active product status with higher inventory availability (1834 pcs)
Recommended when supply chain flexibility or inventory availability is a priority

0395325011 (Molex Eurostyle ESE 39532):

2-side shrouding configuration limits mechanical compatibility to applications where full 4-side shrouding is not required
Suitable for applications where 15 A current rating meets design requirements
Identical insulation height and contact tail length to EM257511HC
Active product status with high inventory availability (1456 pcs)
Not recommended as primary substitute due to shrouding configuration difference

Frequently Asked Questions (FAQ)

Q: Can 0395325011 (2-side shrouded) be used in place of EM257511HC (4-side shrouded)?

A: 0395325011 is not a direct mechanical substitute due to shrouding configuration differences. The 2-side shrouding provides reduced EMI shielding and mechanical protection compared to 4-side shrouding. Use only if the application design does not require full 4-side shrouding protection.

Q: What is the impact of the 1 A current rating difference between EM257511HC (16 A) and the Molex substitutes (15 A)?

A: The 1 A difference represents a 6.25% reduction in current capacity. For applications operating at or near the 16 A limit, verify that the 15 A rating of Molex parts is sufficient for your design. For applications operating below 15 A, this difference is not a limiting factor.

Q: Are the contact tail length differences (0.177" vs. 0.150") significant for PCB design?

A: Yes. The EM257511HC has a longer contact tail (0.177" / 4.50mm) compared to Molex substitutes (0.150" / 3.81mm). This difference affects solder joint formation and PCB pad design. Verify PCB layout compatibility before substitution.

Q: Does the insulation height difference between 0395326011 (0.472") and EM257511HC (0.327") affect compatibility?

A: The higher insulation height of 0395326011 provides greater creepage distance and may improve performance in high-voltage or high-humidity environments. This is a beneficial difference that does not reduce compatibility. Verify mechanical clearance in the assembly to ensure the taller profile does not interfere with adjacent components.

Q: What is the difference between Thermoplastic and Polyamide (PA66) housing materials?

A: Both materials meet UL94 V-0 flammability requirements. Polyamide (PA66) offers superior thermal stability and chemical resistance compared to generic thermoplastic. For applications with elevated operating temperatures or exposure to solvents, Polyamide housing provides enhanced durability.

Q: Are all three parts ROHS3 compliant?

A: EM257511HC is explicitly ROHS3 compliant. Molex parts (0395325011 and 0395326011) do not specify ROHS3 status in the provided data. Verify ROHS3 compliance with Molex if regulatory compliance is required for your application.

Q: Can these parts be used interchangeably in existing designs?

A: Direct interchangeability depends on specific design requirements. All three parts share identical pitch (5.08mm), position count (11), orientation (90° right angle), and voltage rating (300 V). Verify compatibility for: shrouding configuration, current rating requirements, contact tail length (PCB pad design), insulation height (mechanical clearance), and housing material (thermal/chemical environment).

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