TE Connectivity AMP Connectors 4-1877846-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 4-1877846-2 is a 6 Position Circular Connector Plug with male pins and solder cup termination, designed for medical applications. This connector is part of the Medical CPC series and maintains Active product status. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component procurement, inventory management, or design flexibility while maintaining functional compatibility within specified operating parameters.

Substiute Parts

4-1877846-2

TE Connectivity AMP ConnectorsIn Stock: 7724-1877846-2 Datasheet

Current PartRFQ

EN3C6MX

Switchcraft Inc.In Stock: 2741EN3C6MX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4-1877846-2 with the Switchcraft Inc. EN3C6MX is based on alignment of the following critical parameters:

Matching Parameters:

• Connector Type: Both are Plug, Male Pins configurations
• Number of Positions: Both feature 6-position designs
• Termination: Both utilize Solder Cup termination
• Contact Finish: Both employ Gold plating for mating surfaces
• Mounting Type: Both are Free Hanging (In-Line) configurations
• Primary Material: Both use Thermoplastic shell material
• Contact Material: Both use Copper Alloy contacts
• Moisture Sensitivity Level: Both rated MSL 1 (Unlimited)
• ECCN Classification: Both classified as EAR99
• HTSUS Code: Both classified as 8536.69.4020

Electrical Compatibility: The EN3C6MX provides equivalent or superior electrical performance with a current rating of 7.5A (exceeds 6A requirement) and voltage rating of 250VAC/DC (operates within 300VAC specification envelope).

Compliance Alignment: Both parts maintain Active product status and RoHS compliance, with the EN3C6MX additionally certified to ROHS3 and REACH Unaffected standards.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (4-1877846-2): The TE Connectivity AMP Connectors 4-1877846-2 is the specified component for applications requiring the Medical CPC series designation. This part maintains Active product status and RoHS compliance. Selection is appropriate when the specific series requirement, operating temperature range of -50°C to 170°C, and Latch Lock fastening mechanism are design constraints.

Substitute Part Selection (EN3C6MX): The Switchcraft Inc. EN3C6MX serves as an equivalent substitute when the following conditions are met:

1. Operating temperature requirements do not exceed 65°C (the upper limit of the EN3C6MX specification)
2. Cable opening dimensions accommodate the larger range of 0.160" to 0.265" (4.06mm to 6.73mm)
3. Bayonet Lock fastening mechanism is acceptable in place of Latch Lock
4. Enhanced ingress protection (IP66/IP68) and UL94 V-0 flammability rating provide additional environmental performance
5. Medical application compatibility is confirmed, as the EN3C6MX supports medical use cases within its specified parameter envelope

Both parts maintain equivalent electrical performance within their respective voltage and current ratings, share identical connector type and position configuration, and employ gold-plated copper alloy contacts with solder cup termination. Both parts are RoHS compliant and carry unlimited moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the EN3C6MX replace the 4-1877846-2 in all applications?

A: The EN3C6MX is functionally equivalent for applications operating within its specified temperature range (-40°C to 65°C). Applications requiring operation above 65°C or below -40°C must use the 4-1877846-2, which operates from -50°C to 170°C.

Q: What is the primary difference in fastening mechanisms between these parts?

A: The 4-1877846-2 uses Latch Lock fastening, while the EN3C6MX uses Bayonet Lock fastening. Both mechanisms provide secure mating; selection depends on application requirements and connector interface design.

Q: Are the cable opening dimensions compatible between these parts?

A: No. The 4-1877846-2 accommodates cables of 0.106" to 0.154" (2.70mm to 3.90mm), while the EN3C6MX accommodates 0.160" to 0.265" (4.06mm to 6.73mm). Cable diameter must be verified against the selected connector specification.

Q: Do both parts meet medical application requirements?

A: Both parts are specified for medical applications. The 4-1877846-2 is designated within the Medical CPC series, and the EN3C6MX explicitly lists medical applications within its general purpose, instrumentation, marine, and medical application scope.

Q: What is the difference in insert material between these connectors?

A: The 4-1877846-2 uses Polyphenylene Sulfide (PPS) insert material, while the EN3C6MX uses Elastomer insert material. Both materials are suitable for solder cup termination and maintain the specified electrical performance.

Q: Are both parts RoHS compliant?

A: Yes. The 4-1877846-2 is RoHS Compliant, and the EN3C6MX is ROHS3 Compliant. Both meet RoHS requirements; the EN3C6MX carries the more recent ROHS3 certification.

Q: What is the current rating difference, and does it affect substitution?

A: The 4-1877846-2 is rated at 6A, while the EN3C6MX is rated at 7.5A. The EN3C6MX provides higher current capacity, making it suitable for applications requiring up to 6A. Applications requiring exactly 6A or higher current capacity should reference the specific connector rating.

Q: Does the EN3C6MX provide better environmental protection?

A: Yes. The EN3C6MX carries IP66/IP68 ingress protection rating (dust tight, water resistant, waterproof) and UL94 V-0 flammability rating. The 4-1877846-2 does not specify these ratings. Selection should account for environmental exposure requirements.

Q: What is the voltage rating difference?

A: The 4-1877846-2 is rated at 300VAC, while the EN3C6MX is rated at 250VAC/DC. The 4-1877846-2 provides higher AC voltage capacity. Applications requiring 300VAC operation must use the 4-1877846-2.

Q: Are there inventory considerations for these parts?

A: The 4-1877846-2 has 690 pieces in stock, while the EN3C6MX has 2649 pieces in stock. The EN3C6MX offers significantly higher inventory availability.