TE Connectivity 1-796643-7 Terminal Block Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-796643-7 is a 17-position terminal block header with male pins, shrouded on four sides, featuring 0.197" (5.00mm) pitch vertical through-hole mounting. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part operates at 300V UL and 15A UL current rating with a temperature range of -40°C to 110°C.

Substiute Parts

1-796643-7

TE Connectivity AMP ConnectorsIn Stock: 10851-796643-7 Datasheet

Current PartRFQ

1755655

Phoenix ContactIn Stock: 10191755655 Datasheet

SimilarRFQ

A-TB500-OQ17CV

Assmann WSW ComponentsIn Stock: 971A-TB500-OQ17CV Datasheet

SimilarRFQ

A-TB508-OQ17CV

Assmann WSW ComponentsIn Stock: 714A-TB508-OQ17CV Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1-796643-7 is determined by the following critical parameters:

Primary Substitution Criteria:

• Number of Positions: 17
• Pitch: 0.197" (5.00mm) or 0.200" (5.08mm)
• Header Orientation: Vertical
• Type: Header, Male Pins, Shrouded (4 Side)
• Mounting Type: Through Hole
• Termination Style: Solder
• Material Flammability Rating: UL94 V-0
• Insulation Height: 0.472" (12.00mm)

Electrical Compatibility Parameters:

• Voltage - UL: 300 V (minimum requirement)
• Current - UL: 12 A or greater (original part rated 15 A)

Three substitute parts meet these criteria with varying degrees of parameter alignment. The Phoenix Contact 1755655 and Assmann WSW Components A-TB500-OQ17CV maintain the exact 0.197" (5.00mm) pitch specification. The Assmann WSW Components A-TB508-OQ17CV operates at a 0.200" (5.08mm) pitch, representing a minor pitch variation within the same connector family.

Parameter Comparison

Engineering Selection Recommendations

Phoenix Contact 1755655 (COMBICON MSTBVA Series)

This substitute maintains exact pitch specification (0.197" / 5.00mm) and all critical mechanical parameters. The part is active and RoHS compliant. Current rating is 12A UL, which is lower than the original 15A specification. This part is suitable for applications where the 12A current rating satisfies design requirements. The green housing color differs from the original black.

Assmann WSW Components A-TB500-OQ17CV

This substitute maintains exact pitch specification (0.197" / 5.00mm) and all critical mechanical parameters. The part is active and ROHS3 compliant. Current rating is 20A UL, exceeding the original 15A specification. Operating temperature range extends to 115°C, providing broader thermal capability than the original -40°C to 110°C range. Contact tail length matches the original at 0.138" (3.50mm). This part is suitable for applications requiring equivalent or higher current capacity.

Assmann WSW Components A-TB508-OQ17CV

This substitute operates at a 0.200" (5.08mm) pitch, representing a 0.003" (0.08mm) deviation from the original 0.197" (5.00mm) specification. All other mechanical parameters align with the original design. The part is active and ROHS3 compliant. Current rating is 20A UL. This part is suitable only for applications where the pitch tolerance accommodates the 5.08mm specification and mechanical compatibility with mating connectors is confirmed.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1755655 be used as a direct replacement for the TE Connectivity 1-796643-7?

A: The Phoenix Contact 1755655 maintains identical pitch (0.197" / 5.00mm), position count (17), orientation (vertical), and mechanical envelope. However, the current rating is 12A UL compared to the original 15A UL. Direct substitution is valid for applications operating at or below 12A. The green housing color differs from the original black.

Q: What is the significance of the pitch difference between A-TB500-OQ17CV and A-TB508-OQ17CV?

A: The A-TB500-OQ17CV maintains the original 0.197" (5.00mm) pitch, while the A-TB508-OQ17CV operates at 0.200" (5.08mm) pitch. This 0.003" (0.08mm) difference affects mechanical compatibility with mating connectors and PCB layout. The A-TB500-OQ17CV is the preferred substitute when exact pitch matching is required.

Q: Are all substitute parts RoHS compliant?

A: The Phoenix Contact 1755655 is RoHS compliant. Both Assmann WSW Components parts (A-TB500-OQ17CV and A-TB508-OQ17CV) are ROHS3 compliant. The original TE Connectivity 1-796643-7 has RoHS status listed as not applicable due to its obsolete classification.

Q: Which substitute part offers the highest current capacity?

A: Both Assmann WSW Components parts (A-TB500-OQ17CV and A-TB508-OQ17CV) are rated for 20A UL, exceeding the original 15A UL specification. The Phoenix Contact 1755655 is rated for 12A UL.

Q: Can the A-TB508-OQ17CV be used in applications designed for the original 1-796643-7?

A: The A-TB508-OQ17CV can be used only if the 0.200" (5.08mm) pitch is mechanically compatible with the mating connector and PCB layout. The 0.003" (0.08mm) pitch deviation may cause alignment issues with connectors designed for the original 0.197" (5.00mm) pitch specification.

Q: What is the operating temperature range for each substitute part?

A: The original TE Connectivity 1-796643-7 operates from -40°C to 110°C. The Phoenix Contact 1755655 operating temperature range is not specified in the provided data. Both Assmann WSW Components parts (A-TB500-OQ17CV and A-TB508-OQ17CV) operate from -40°C to 115°C, providing extended upper temperature capability.

Q: Are the contact tail lengths identical across all parts?

A: The original 1-796643-7 and the Assmann WSW A-TB500-OQ17CV both have contact tail length of 0.138" (3.50mm). The Phoenix Contact 1755655 has a contact tail length of 0.154" (3.90mm). The Assmann WSW A-TB508-OQ17CV has a contact tail length of 0.157" (4.00mm). These variations affect solder joint geometry and PCB hole sizing.