TE Connectivity AMP Connectors 2-796642-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2-796642-1 is a 21 Position Terminal Block Header with male pins, shrouded on four sides, designed for 0.197" (5.00mm) pitch vertical through-hole mounting. This component is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing procurement and design applications. The part operates within a 300V UL rating at 15A current capacity and maintains operational performance across -40°C to 110°C temperature range.

Substiute Parts

2-796642-1

TE Connectivity AMP ConnectorsIn Stock: 11532-796642-1 Datasheet

Current PartRFQ

A-TB500-OQ21CV

Assmann WSW ComponentsIn Stock: 818A-TB500-OQ21CV Datasheet

SimilarRFQ

A-TB508-OQ21CV

Assmann WSW ComponentsIn Stock: 1014A-TB508-OQ21CV Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2-796642-1 terminal block header is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Number of positions: 21 (exact match required)
• Pitch specification: 0.197" (5.00mm) or mechanically compatible alternative
• Type configuration: Header with male pins, shrouded (4 side)
• Header orientation: Vertical
• Termination style: Solder
• Mounting type: Through hole
• Voltage rating: Minimum 300V UL
• Current rating: Minimum 15A UL
• Material flammability: UL94 V-0
• Contact mating finish: Tin
• Contact tail length: 0.138" (3.50mm)
• Insulation height: 0.472" (12.00mm)

Substitute Parts Identified:

The A-TB500-OQ21CV (Assmann WSW Components) meets all primary criteria with identical pitch (5.00mm), positions (21), and mechanical configuration. This part is active status and provides enhanced current capacity (20A UL) and extended operating temperature range (-40°C to 115°C).

The A-TB508-OQ21CV (Assmann WSW Components) provides functional equivalence with a pitch of 0.200" (5.08mm), which represents a minor pitch variation. This part maintains 21 positions, active status, and exceeds electrical specifications (20A UL, 300V UL). The contact tail length extends to 0.157" (4.00mm), representing a mechanical difference requiring design verification for PCB footprint compatibility.

Parameter Comparison

Engineering Selection Recommendations

A-TB500-OQ21CV Selection:

The A-TB500-OQ21CV represents the primary equivalent substitute for the obsolete 2-796642-1. This Assmann WSW Components terminal block header maintains identical pitch (5.00mm) and mechanical configuration while offering active product status. The part exceeds the original electrical specifications with 20A UL current capacity compared to 15A, and extends the operating temperature range to 115°C. Both parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and EAR99 export classification. The contact tail length and insulation height remain identical, ensuring direct PCB footprint compatibility.

A-TB508-OQ21CV Selection:

The A-TB508-OQ21CV provides an alternative substitute with a pitch specification of 5.08mm (0.200"), representing a 0.08mm deviation from the original 5.00mm pitch. This part maintains active status and exceeds electrical requirements (20A UL, 300V UL). The contact tail length extends to 0.157" (4.00mm) compared to the original 0.138" (3.50mm), introducing a 0.019" mechanical difference. This variant is suitable for applications where the pitch tolerance and contact tail length modification are compatible with existing PCB designs and connector mating interfaces.

Both substitute parts maintain compliance with ROHS3 regulations, REACH unaffected status, and identical export classifications (EAR99, HTSUS 8536.69.4040).

Frequently Asked Questions (FAQ)

Q: Can the A-TB500-OQ21CV directly replace the 2-796642-1 without PCB modification?

A: Yes. The A-TB500-OQ21CV maintains identical pitch (5.00mm), contact tail length (0.138" / 3.50mm), and insulation height (0.472" / 12.00mm) specifications. Direct PCB footprint compatibility is established.

Q: What is the pitch difference between the 2-796642-1 and A-TB508-OQ21CV?

A: The 2-796642-1 specifies 0.197" (5.00mm) pitch, while the A-TB508-OQ21CV specifies 0.200" (5.08mm) pitch. This 0.08mm difference may require PCB footprint evaluation. Additionally, the A-TB508-OQ21CV contact tail length is 0.157" (4.00mm) versus the original 0.138" (3.50mm).

Q: Are both substitute parts RoHS compliant?

A: Yes. Both A-TB500-OQ21CV and A-TB508-OQ21CV are ROHS3 compliant, matching the original 2-796642-1 compliance status.

Q: What is the current capacity difference between the original part and substitutes?

A: The 2-796642-1 is rated at 15A UL. Both substitute parts (A-TB500-OQ21CV and A-TB508-OQ21CV) are rated at 20A UL, providing 5A additional capacity.

Q: Do the substitute parts maintain the same operating temperature range?

A: The 2-796642-1 operates from -40°C to 110°C. Both substitutes extend this range to -40°C to 115°C, providing 5°C additional high-temperature capability.

Q: What contact material differences exist between the parts?

A: The 2-796642-1 uses Copper Alloy contacts. The A-TB500-OQ21CV uses Copper contacts. The A-TB508-OQ21CV uses Brass contacts. All maintain Tin mating finish.

Q: Are the housing materials different between the original and substitute parts?

A: The 2-796642-1 housing is Polyamide (PA66), Nylon 6/6. Both substitute parts use Thermoplastic housing material.

Q: What is the product status of each part?

A: The 2-796642-1 is obsolete. Both A-TB500-OQ21CV and A-TB508-OQ21CV are active products with ongoing availability.

Q: Do all parts share the same voltage rating?

A: Yes. The 2-796642-1, A-TB500-OQ21CV, and A-TB508-OQ21CV all maintain 300V UL voltage rating.

Q: Are there packaging differences between the parts?

A: The 2-796642-1 packaging is not specified. Both substitute parts are supplied in Bulk packaging.