ELFH0311G Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The ELFH0311G is a 3-position terminal block header manufactured by Amphenol PCD. This component is a shrouded, right-angle header with male pins designed for through-hole solder termination. The part is currently active in production with 1122 units in stock. Terminal block headers are essential interconnect components used in industrial control systems, power distribution modules, and signal routing applications where reliable, field-serviceable connections are required. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from multiple qualified manufacturers.

Substiute Parts

ELFH0311G

Amphenol PCDIn Stock: 1149ELFH0311G Datasheet

Current PartRFQ

796644-3

TE Connectivity AMP ConnectorsIn Stock: 56862796644-3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 796644-3 (TE Connectivity AMP Connectors) qualifies as an equivalent based on the following critical parameters that determine functional interchangeability:

• Electrical Compatibility: Both parts support 15 A UL current rating and 300 V UL voltage rating
• Physical Configuration: Both are 3-position headers with 0.197" (5.00mm) pitch and 90° right-angle orientation
• Connector Type: Both feature male pins with 4-side shrouding
• Mounting Method: Both use through-hole solder termination
• Compliance: Both meet UL94 V-0 flammability requirements and RoHS compliance standards
• Environmental Rating: Both operate across -40°C to 105°C+ temperature range
• Contact Finish: Both use tin contact mating finish

These parameters establish the substitution basis. Differences in housing material (PBT vs. PA66), contact material (Brass vs. Copper Alloy), and minor dimensional variations do not prevent functional equivalence within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

Both the ELFH0311G and 796644-3 are active production components with full compliance certifications. Selection between these parts should be based on:

ELFH0311G (Amphenol PCD): Select when PBT housing material is specified in design documentation or when brass contact material is required for specific application requirements. Current inventory of 1122 units supports immediate availability.

796644-3 (TE Connectivity): Select when PA66 nylon housing is acceptable or preferred, or when copper alloy contacts meet application specifications. Significantly higher inventory (56783 units) provides extended supply assurance. Operating temperature range extends to 110°C, providing 5°C additional margin above the primary part.

Both parts carry equivalent electrical ratings, flammability certifications (UL94 V-0), and RoHS compliance. Minor dimensional differences in contact tail length and insulation height do not affect functional performance within standard PCB layout tolerances for through-hole terminal block applications.

Frequently Asked Questions (FAQ)

Q: Can 796644-3 be used as a direct replacement for ELFH0311G in existing designs?

A: Yes. Both parts share identical electrical ratings (15 A, 300 V), pitch (5.00mm), position count (3), orientation (90° right angle), and connector type (male pins, 4-side shrouded). Contact tail length differs by 0.017" (0.44mm) and insulation height by 0.010" (0.26mm), which fall within standard PCB design tolerances for through-hole terminal block footprints.

Q: What are the material differences between these parts?

A: ELFH0311G uses PBT (polybutylene terephthalate) housing with brass contacts. 796644-3 uses PA66 nylon housing with copper alloy contacts. Both materials meet UL94 V-0 flammability requirements. Material selection should align with application environmental exposure and mechanical stress requirements.

Q: Are there temperature rating differences?

A: ELFH0311G operates from -40°C to 105°C. 796644-3 operates from -40°C to 110°C. The 5°C additional upper temperature margin on the TE Connectivity part may be relevant for applications near thermal limits.

Q: Do both parts have the same RoHS compliance status?

A: Both are RoHS compliant. ELFH0311G carries standard RoHS Compliant status. 796644-3 carries ROHS3 Compliant status, indicating compliance with the most current RoHS directive revision.

Q: What inventory considerations apply to these parts?

A: ELFH0311G has 1122 units in stock. 796644-3 has 56783 units in stock. For high-volume production or extended supply chain planning, the TE Connectivity part offers significantly greater availability.

Q: Are both parts suitable for industrial control applications?

A: Yes. Both parts meet the electrical, thermal, and compliance requirements for industrial control systems, power distribution modules, and signal routing applications. UL94 V-0 flammability rating and 300 V UL voltage rating support standard industrial equipment designs.