TE Connectivity 1-1761604-3 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-1761604-3 is a through-hole, right-angle rectangular connector header with 40 positions at 2.54mm pitch. This component is classified as obsolete, necessitating identification of functionally equivalent substitute parts for ongoing design and procurement requirements. The connector features shrouded 4-wall construction, male pin contacts with gold-plated mating surfaces, and push-pull fastening suitable for board-to-cable/wire applications.

Substiute Parts

1-1761604-3

TE Connectivity AMP ConnectorsIn Stock: 9341-1761604-3 Datasheet

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3-1761605-3

TE Connectivity AMP ConnectorsIn Stock: 19683-1761605-3 Datasheet

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5103310-8

TE Connectivity AMP ConnectorsIn Stock: 14855103310-8 Datasheet

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N2540-5002-RB

3MIn Stock: 7032N2540-5002-RB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1-1761604-3 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 40
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole, Right Angle
• Shrouding: Shrouded - 4 Wall
• Fastening Type: Push-Pull
• Termination: Solder
• Contact Finish - Mating: Gold
• Operating Temperature Range: -65°C ~ 105°C
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Contact Finish Thickness - Mating: 15.0µin to 30.0µin
• Contact Length - Post: 0.102" to 0.135"
• Insulation Height: 0.338" to 0.360"
• Current Rating: 1A to 1.75A per Contact
• Contact Material: Phosphor Bronze or Brass or Copper Alloy
• Insulation Material: PBT or PCT/Polyester/Glass Filled
• Packaging: Bulk or Tube
• Product Status: Active or Obsolete

All identified substitute parts meet these criteria and are therefore electrically and mechanically compatible with the original 1-1761604-3 specification.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 3-1761605-3

The 3-1761605-3 is the primary substitute for the obsolete 1-1761604-3. Both components are from the same manufacturer's AMP-Latch series and share identical electrical and mechanical specifications. The 3-1761605-3 holds active product status, ensuring ongoing availability and supply chain continuity. The primary difference is increased contact finish thickness on the mating surface (30.0µin versus 15.0µin), which provides enhanced durability. Insulation color differs (blue versus black) but does not affect functional compatibility. This part is available in bulk packaging.

TE Connectivity 5103310-8

The 5103310-8 is functionally equivalent and maintains active product status. This part features a longer contact post (0.135" versus 0.102"), which accommodates applications requiring deeper board penetration. Contact material is brass rather than phosphor bronze, and insulation material is not specified. This part is supplied in tube packaging. The increased post length represents the primary design distinction and should be evaluated against specific PCB thickness and mounting requirements.

3M N2540-5002-RB

The N2540-5002-RB from 3M's 2500 series provides cross-manufacturer equivalence with active product status. This part features the highest current rating (1.75A per Contact versus 1A), making it suitable for higher-power applications. Contact finish thickness on the mating surface is 30.0µin, matching the 3-1761605-3. Operating temperature minimum is -55°C (versus -65°C), which is acceptable for most industrial applications. Contact material is copper alloy, and insulation material is PCT with polyester and glass fill. This part is available in bulk packaging.

All three substitute parts comply with RoHS requirements and maintain MSL 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the 3-1761605-3 directly replace the obsolete 1-1761604-3 in existing designs?

A: Yes. The 3-1761605-3 is electrically and mechanically equivalent to the 1-1761604-3. Both components share identical pitch, position count, mounting type, and electrical ratings. The increased mating contact finish thickness (30.0µin) on the 3-1761605-3 provides enhanced contact durability without affecting compatibility.

Q: What is the primary difference between the TE Connectivity substitutes (3-1761605-3 and 5103310-8)?

A: The 5103310-8 features a longer contact post (0.135" versus 0.102"), accommodating deeper PCB mounting depths. Contact material differs (brass versus phosphor bronze). Both maintain identical pitch, position count, and electrical ratings. Selection depends on specific PCB thickness and mounting depth requirements.

Q: How does the 3M N2540-5002-RB differ from the TE Connectivity options?

A: The N2540-5002-RB offers higher current capacity (1.75A per Contact versus 1A) and operates across a slightly narrower temperature range (-55°C to 105°C versus -65°C to 105°C). Contact finish thickness on the mating surface is 30.0µin, matching the 3-1761605-3. Insulation material is PCT with glass fill rather than standard PBT. This part is suitable for higher-power applications where the reduced low-temperature rating is acceptable.

Q: Are packaging differences significant when selecting a substitute?

A: Packaging differences (bulk versus tube) affect procurement and handling but do not impact electrical or mechanical compatibility. The 3-1761605-3 is supplied in bulk packaging, the 5103310-8 in tube packaging, and the N2540-5002-RB in bulk packaging. Selection should align with inventory management and assembly line requirements.

Q: Do all substitute parts meet the same compliance standards as the original 1-1761604-3?

A: All substitute parts are RoHS compliant and maintain UL94 V-0 flammability rating. The 1-1761604-3 and 3-1761605-3 are ROHS3 compliant, while the 5103310-8 is ROHS3 compliant and the N2540-5002-RB is RoHS compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity classification. REACH status varies: the 1-1761604-3 and N2540-5002-RB are REACH Unaffected, while the 3-1761605-3 and 5103310-8 are Vendor Undefined.

Q: What is the significance of contact finish thickness differences?

A: Contact finish thickness affects contact durability and wear resistance. The original 1-1761604-3 specifies 15.0µin (0.38µm) mating contact finish, while the 3-1761605-3 and N2540-5002-RB specify 30.0µin (0.76µm). Thicker finishes provide extended service life in high-cycle mating applications. Both thicknesses are within acceptable engineering tolerances for this connector category.

Q: Can the N2540-5002-RB be used in applications requiring -65°C operation?

A: The N2540-5002-RB operates from -55°C to 105°C, which does not meet the -65°C minimum requirement of the original specification. This part is suitable only for applications with operating temperature minimums of -55°C or higher. For applications requiring -65°C operation, the TE Connectivity options (3-1761605-3 or 5103310-8) are required.

Q: Are there any voltage rating considerations when selecting a substitute?

A: The original 1-1761604-3 specifies 250VAC voltage rating. The 3-1761605-3 also specifies 250VAC. The 5103310-8 and N2540-5002-RB do not specify voltage ratings in the provided data. For applications requiring explicit 250VAC rating confirmation, the 3-1761605-3 is the recommended choice.