EM257509VC Terminal Block Header Equivalent & Substitute Parts

Part Overview

The EM257509VC is a 9-position terminal block header manufactured by Eaton Electronics Division. This component is a vertical through-hole solder-terminated header with 4-side shrouding and 0.200" (5.08mm) pitch spacing. The part is classified as Active product status with full RoHS3 compliance and UL94 V-0 flammability rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring compatible 9-position vertical terminal block headers with matching electrical and mechanical specifications.

Key Parameters

Parameter	EM257509VC Value
Number of Positions	9
Pitch	0.200" (5.08mm)
Header Orientation	Vertical
Type	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole
Termination Style	Solder
Current - UL	16 A
Voltage - UL	300 V
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the EM257509VC are grouped based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

Number of Positions: 9
Header Orientation: Vertical
Termination Style: Solder
Mounting Type: Through Hole
Shrouding Configuration: 4-side shrouded
Material Flammability Rating: UL94 V-0

Secondary Compatibility Parameters:

Pitch: 0.200" (5.08mm) for direct mechanical fit
Voltage - UL: 300 V minimum
Operating Temperature Range: -40°C to 105°C minimum
Contact Mating Finish: Tin
RoHS3 Compliance

Substitutes are divided into two categories based on pitch specification:

Category A - Exact Pitch Match (0.200" / 5.08mm): Parts 0395315009, 0395316009, 1755804, 1924376, and EDSTLZ955/9 maintain identical 5.08mm pitch spacing for direct PCB footprint compatibility.

Category B - Alternate Pitch (0.197" / 5.00mm): Parts 0395215009, 0395216009, 1755587, and 796642-9 feature 5.00mm pitch spacing and require PCB layout verification before substitution.

Parameter Comparison

Parameter	EM257509VC	0395315009	0395316009	1755804	1924376	EDSTLZ955/9	1755587	796642-9	0395215009	0395216009
Manufacturer	Eaton	Molex	Molex	Phoenix Contact	Phoenix Contact	On Shore Technology	Phoenix Contact	TE Connectivity	Molex	Molex
Number of Positions	9	9	9	9	9	9	9	9	9	9
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Header Orientation	Vertical	Vertical	Vertical	Vertical	Vertical	Vertical	Vertical	Vertical	Vertical	Vertical
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (2 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (2 Side)	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Solder	Through Hole	Through Hole	Through Hole	Through Hole
Termination Style	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current - UL	16 A	15 A	15 A	12 A	16 A	Not Specified	12 A	15 A	15 A	15 A
Voltage - UL	300 V	300 V	300 V	300 V	300 V	300 V	300 V	300 V	300 V	300 V
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	Not Specified	Not Specified	-30°C ~ 105°C	Not Specified	-40°C ~ 110°C	-40°C ~ 105°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	Not Specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Mating Finish	Tin	Tin	Tin	Tin	Tin	Not Specified	Tin	Tin	Tin	Tin
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Substitutes (Exact Pitch 5.08mm, 4-Side Shrouded):

The following parts are direct substitutes for the EM257509VC based on matching pitch, shrouding configuration, and electrical specifications:

0395316009 (Molex Eurostyle ESE 39531): Matches all critical parameters including 5.08mm pitch, 4-side shrouding, and vertical through-hole configuration. Rated for 15 A UL current. ROHS3 compliant and active product status. Suitable for direct PCB footprint replacement.

1924376 (Phoenix Contact COMBICON MSTBVA): Matches 5.08mm pitch, 4-side shrouding, and vertical through-hole mounting. Rated for 16 A UL current, matching the EM257509VC current specification. ROHS3 compliant and active product status. Highest current rating compatibility among substitutes.

1755804 (Phoenix Contact COMBICON MSTBVA): Matches 5.08mm pitch, 4-side shrouding, and vertical through-hole configuration. Rated for 12 A UL current. ROHS3 compliant and active product status. Suitable for applications with lower current requirements.

EDSTLZ955/9 (On Shore Technology EDSTLZ955): Matches 5.08mm pitch, 4-side shrouding, and vertical solder mounting. ROHS3 compliant and active product status. Operating temperature range -30°C to 105°C. Suitable for direct PCB footprint replacement.

Partial Substitutes (Exact Pitch 5.08mm, 2-Side Shrouded):

0395315009 (Molex Eurostyle ESE 39531): Matches 5.08mm pitch and vertical through-hole configuration but features 2-side shrouding instead of 4-side. Rated for 15 A UL current. ROHS3 compliant and active product status. Acceptable for applications where reduced shrouding does not impact EMI or mechanical requirements.

Alternate Pitch Substitutes (5.00mm Pitch, 4-Side Shrouded):

The following parts feature 5.00mm pitch spacing and require PCB layout verification:

0395216009 (Molex Eurostyle ESE 39521): 5.00mm pitch, 4-side shrouding, vertical through-hole. Rated for 15 A UL current. ROHS3 compliant and active product status. PCB footprint adjustment required.

1755587 (Phoenix Contact COMBICON MSTBVA): 5.00mm pitch, 4-side shrouding, vertical through-hole. Rated for 12 A UL current. ROHS3 compliant and active product status. PCB footprint adjustment required.

796642-9 (TE Connectivity Buchanan): 5.00mm pitch, 4-side shrouding, vertical through-hole. Rated for 15 A UL current. RoHS compliant and active product status. Operating temperature range -40°C to 110°C. PCB footprint adjustment required.

Alternate Pitch Substitutes (5.00mm Pitch, 2-Side Shrouded):

0395215009 (Molex Eurostyle ESE 39521): 5.00mm pitch, 2-side shrouding, vertical through-hole. Rated for 15 A UL current. ROHS3 compliant and active product status. PCB footprint adjustment and reduced shrouding consideration required.

Frequently Asked Questions (FAQ)

Q: Can I use 0395316009 as a direct replacement for EM257509VC?

A: 0395316009 is a direct substitute for PCB footprint compatibility. Both parts feature 9 positions, 0.200" (5.08mm) pitch, vertical through-hole mounting, 4-side shrouding, and solder termination. The 0395316009 is rated for 15 A UL current compared to the EM257509VC 16 A rating. Verify that your application current requirements do not exceed 15 A.

Q: What is the difference between 4-side and 2-side shrouding?

A: 4-side shrouding provides complete enclosure around the pin array on all four sides, offering maximum EMI shielding and mechanical protection. 2-side shrouding provides enclosure on two opposing sides only. Parts with 2-side shrouding (0395315009, 0395215009) are not direct substitutes if 4-side shrouding is required for EMI or mechanical specifications.

Q: Can I use parts with 5.00mm pitch instead of 5.08mm pitch?

A: Parts with 5.00mm pitch (0395215009, 0395216009, 1755587, 796642-9) require PCB layout verification before substitution. The 0.08mm pitch difference may not be compatible with existing PCB footprints. Consult PCB design documentation to confirm spacing tolerance before proceeding with substitution.

Q: Which substitute has the highest current rating?

A: 1924376 (Phoenix Contact COMBICON MSTBVA) matches the EM257509VC current rating of 16 A UL. This part is the preferred substitute when maximum current capacity is required.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are either ROHS3 compliant or RoHS compliant. EDSTLZ955/9 is ROHS3 compliant. 796642-9 is RoHS compliant. All other substitutes are ROHS3 compliant. Verify compliance requirements for your specific application.

Q: What is the operating temperature range for substitute parts?

A: Most substitute parts support the -40°C to 105°C operating temperature range matching the EM257509VC. 796642-9 supports -40°C to 110°C. EDSTLZ955/9 supports -30°C to 105°C. Phoenix Contact parts (1755804, 1755587, 1924376) do not specify operating temperature range in available data. Consult manufacturer documentation for complete thermal specifications.

Q: Can EDSTLZ955/9 be used as a substitute if my application uses through-hole mounting?

A: EDSTLZ955/9 features solder mounting termination rather than through-hole pin configuration. While it matches pitch, shrouding, and electrical specifications, the mounting method differs. Verify that your assembly process and PCB design accommodate solder termination before substitution.

Q: What is the difference between Molex 0395315009 and 0395316009?

A: Both parts feature 5.08mm pitch and vertical through-hole mounting. 0395315009 has 2-side shrouding while 0395316009 has 4-side shrouding. 0395316009 is the closer substitute to EM257509VC due to matching 4-side shrouding configuration.

Q: Are there inventory considerations for substitute selection?

A: Inventory levels vary by part number. 0395316009 has 3637 units in stock, 1924376 has 778 units, and EDSTLZ955/9 has 1262 units. Verify current inventory status with your supplier before finalizing procurement decisions.

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