TE Connectivity AMP Connectors 2-1546931-2 Terminal Block Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 2-1546931-2 is a 22 Position Terminal Block Header with male pins, unshrouded design, and 0.197" (5.00mm) vertical pitch for through-hole mounting. This component is classified as obsolete, necessitating identification of active substitute parts that maintain electrical and mechanical compatibility. The part operates at 12 A (UL) and 300 V (UL) with solder termination and is housed in polyamide (PA66) nylon 6/6 material with UL94 V-0 flammability rating.

Substiute Parts

2-1546931-2

TE Connectivity AMP ConnectorsIn Stock: 11522-1546931-2 Datasheet

Current PartRFQ

A-TB500-OP22

Assmann WSW ComponentsIn Stock: 717A-TB500-OP22 Datasheet

SimilarRFQ

ESZH22160

Amphenol PCDIn Stock: 958ESZH22160 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2-1546931-2 terminal block header is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 22
• Pitch: 0.197" (5.00mm)
• Header Orientation: Vertical
• Mounting Type: Through Hole
• Termination Style: Solder
• Type: Header, Male Pins, Unshrouded
• Contact Tail Length: 0.138" (3.50mm)
• Insulation Height: 0.079" (2.00mm)
• Voltage - UL: 300 V

Acceptable Variation Parameters:

• Current - UL: Substitute must meet or exceed 12 A requirement
• Housing Material: Polyamide (PA66) or equivalent thermoplastic materials acceptable
• Contact Material: Brass or copper alloy acceptable
• Operating Temperature Range: Substitute must support operational envelope
• RoHS Compliance: ROHS3 or equivalent compliance required

The substitute parts identified below satisfy all mandatory matching parameters and acceptable variation criteria.

Parameter Comparison

Engineering Selection Recommendations

ESZH22160 (Amphenol PCD) is the primary substitute for the 2-1546931-2. This part maintains identical electrical ratings (12 A UL, 300 V UL), mechanical dimensions, and housing material composition. Both parts feature polyamide (PA66) nylon 6/6 construction with tin contact mating finish. The ESZH22160 is active in production status with RoHS compliance certification, ensuring long-term availability and supply chain stability. Operating temperature range of -40°C to 110°C supports the operational envelope of the original part.

A-TB500-OP22 (Assmann WSW Components) serves as a secondary substitute. This part satisfies all mandatory mechanical and dimensional parameters with identical pitch, orientation, and contact tail length. However, the current rating is specified at 10 A (UL), which is below the original 12 A specification. The A-TB500-OP22 is suitable for applications where the 10 A current rating is sufficient. This part is active in production with ROHS3 compliance and operating temperature range of -40°C to 115°C.

Selection between ESZH22160 and A-TB500-OP22 depends on application current requirements. For applications requiring the full 12 A capacity, ESZH22160 is the appropriate selection. For applications with current demands at or below 10 A, either substitute is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the A-TB500-OP22 be used in place of the 2-1546931-2 in all applications?

A: The A-TB500-OP22 is mechanically and electrically compatible with the 2-1546931-2 for applications where the circuit current does not exceed 10 A. The original part is rated for 12 A (UL). Applications requiring the full 12 A capacity must use the ESZH22160 or equivalent 12 A rated substitute.

Q: What are the critical dimensions that must match for substitution?

A: The following dimensions must match exactly: 0.197" (5.00mm) pitch, 0.138" (3.50mm) contact tail length, and 0.079" (2.00mm) insulation height. All three substitute parts meet these dimensional requirements.

Q: Are there packaging differences between the substitute parts?

A: Yes. The 2-1546931-2 is supplied in standard packaging. The A-TB500-OP22 is supplied in bulk packaging, while the ESZH22160 is supplied in tray packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Do the substitute parts have the same flammability rating?

A: The ESZH22160 maintains the UL94 V-0 flammability rating of the original 2-1546931-2. The A-TB500-OP22 specifies UL94 V-0 rating as well. Both substitutes meet the flammability requirements of the original part.

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

A: The 2-1546931-2 does not specify an operating temperature range. The ESZH22160 operates from -40°C to 110°C. The A-TB500-OP22 operates from -40°C to 115°C. Both ranges are suitable for standard industrial applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 2-1546931-2 is ROHS3 compliant. The ESZH22160 is RoHS compliant. The A-TB500-OP22 is ROHS3 compliant. All parts meet RoHS compliance requirements.

Q: What is the difference in contact material between the substitutes?

A: The 2-1546931-2 and A-TB500-OP22 use brass contacts. The ESZH22160 uses copper alloy contacts. Both materials are acceptable for terminal block applications and provide equivalent electrical performance.