ELFH03120 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The ELFH03120 is a 3-position terminal block header manufactured by Amphenol PCD, designed for right-angle through-hole mounting with 5.00mm pitch spacing. This shrouded male pin header operates at 15A (UL) and 300V (UL), suitable for applications requiring reliable solder termination in industrial and commercial environments. The part is currently active in production with 699 units in stock. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and mounting characteristics align with the original specification, enabling component interchangeability in circuit board designs.

Key Parameters

Parameter	Value
Manufacturer Part Number	ELFH03120
Manufacturer	Amphenol PCD
Category	Terminal Blocks
Number of Positions	3
Pitch	0.197" (5.00mm)
Header Orientation	90°, Right Angle
Type	Header, Male Pins, Shrouded (2 Side)
Termination Style	Solder
Mounting Type	Through Hole
Current Rating (UL)	15 A
Voltage Rating (UL)	300 V
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the ELFH03120 is determined by the following critical parameters:

Electrical Compatibility: Current rating (15A UL minimum), voltage rating (300V UL minimum), and contact material (brass or copper alloy)
Mechanical Compatibility: 3-position configuration, right-angle (90°) orientation, through-hole mounting, and shrouded male pin design
Pitch Tolerance: Nominal 5.00mm pitch (0.197") with allowance for 5.08mm (0.200") pitch variants within standard PCB layout tolerances
Termination Method: Solder termination required
Regulatory Compliance: UL94 V-0 flammability rating and RoHS compliance status

The identified substitute parts meet these criteria while maintaining functional equivalence in terminal block header applications.

Parameter Comparison

Parameter	ELFH03120 (Amphenol PCD)	0395320003 (Molex)	282812-3 (TE Connectivity)
Number of Positions	3	3	3
Pitch	0.197" (5.00mm)	0.200" (5.08mm)	0.197" (5.00mm)
Header Orientation	90°, Right Angle	90°, Right Angle	90°, Right Angle
Type	Header, Male Pins, Shrouded (2 Side)	Header, Male Pins, Shrouded (2 Side)	Header, Male Pins, Shrouded (2 Side)
Termination Style	Solder	Solder	Solder
Mounting Type	Through Hole	Through Hole	Through Hole
Current Rating (UL)	15 A	15 A	15 A
Voltage Rating (UL)	300 V	300 V	300 V
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 110°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Contact Material	Brass	Brass	Copper Alloy
Housing Material	Polybutylene Terephthalate (PBT)	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Color	Black	Black	Green
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

ELFH03120 (Amphenol PCD) remains the primary specification. This part is RoHS Compliant, actively produced, and meets all stated electrical and mechanical requirements with PBT housing material.

0395320003 (Molex Eurostyle ESE 39532) is a direct electrical and functional substitute with ROHS3 Compliant status. The pitch specification of 0.200" (5.08mm) represents a 0.08mm variance from the nominal 5.00mm, which falls within standard PCB layout tolerances for terminal block applications. Housing material is PA66 nylon. This part is actively produced with higher inventory availability (6577 units).

282812-3 (TE Connectivity Buchanan Series) is a direct electrical and functional substitute with ROHS3 Compliant status and an extended operating temperature range to 110°C. The pitch specification matches the original at 0.197" (5.00mm). Housing material is PA66 nylon with copper alloy contacts. This part features side stacking capability and is actively produced (3931 units in stock).

All three parts satisfy UL94 V-0 flammability requirements, 15A current rating, and 300V voltage rating. Selection between substitutes depends on housing material preference, operating temperature requirements, and pitch tolerance acceptance in the target application.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0395320003 be used as a direct replacement for the ELFH03120?

A: Yes, with pitch tolerance consideration. The Molex part operates at identical electrical ratings (15A, 300V) and maintains the same 3-position, right-angle, shrouded male pin configuration. The pitch difference of 0.08mm (5.08mm vs. 5.00mm) is within standard PCB layout tolerances for terminal block headers. Both parts are RoHS compliant and actively produced.

Q: What is the significance of the pitch difference between the ELFH03120 (5.00mm) and the Molex 0395320003 (5.08mm)?

A: Pitch refers to the center-to-center spacing between adjacent pins. A 0.08mm variance is typical in terminal block specifications and generally accommodates standard PCB hole spacing tolerances. However, PCB layout verification is necessary to confirm compatibility with existing hole patterns in the target application.

Q: Are there differences in housing material between these parts?

A: Yes. The ELFH03120 uses Polybutylene Terephthalate (PBT), while both substitute parts (Molex and TE Connectivity) use Polyamide (PA66) nylon. Both materials meet UL94 V-0 flammability requirements. Material selection may affect thermal performance and chemical resistance in specific environments.

Q: Does the TE Connectivity 282812-3 offer any advantages over the other options?

A: The TE Connectivity part provides an extended operating temperature range (-40°C to 110°C versus -40°C to 105°C for the original), side stacking capability, and exact pitch matching (5.00mm). These features may be beneficial in high-temperature applications or when additional mechanical stacking is required.

Q: Are all three parts suitable for solder termination?

A: Yes. All three parts specify solder termination as the mounting method and are designed for through-hole PCB assembly.

Q: What is the inventory status for each part?

A: ELFH03120 (Amphenol): 699 units; 0395320003 (Molex): 6577 units; 282812-3 (TE Connectivity): 3931 units. All parts are listed as active products.

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