TE Connectivity AMP Connectors 4-1877846-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 4-1877846-9 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 with 810 units in current inventory. The connector features gold-plated mating contacts, thermoplastic shell construction, and operates across a temperature range of -50°C to 170°C with a current rating of 6A at 300VAC.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct functional replacement in applications where the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

4-1877846-9

TE Connectivity AMP ConnectorsIn Stock: 8314-1877846-9 Datasheet

Current PartRFQ

EN3C6MX

Switchcraft Inc.In Stock: 2741EN3C6MX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 4-1877846-9 is determined by alignment across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Plug, Male Pins)
• Number of positions (6)
• Termination method (Solder Cup)
• Contact finish material (Gold plating)
• Current and voltage ratings (minimum 6A, 300VAC)

Mechanical Compatibility Parameters:

• Mounting configuration (Free Hanging, In-Line)
• Contact material (Copper Alloy)
• Shell material (Thermoplastic)
• Cable opening range compatibility

Regulatory & Environmental Parameters:

• RoHS compliance status
• Moisture Sensitivity Level (MSL 1)
• Operating temperature range overlap

The substitute part EN3C6MX from Switchcraft Inc. qualifies as an equivalent based on matching connector topology, termination method, contact material, and regulatory compliance. Differences in fastening type (Bayonet Lock versus Latch Lock), ingress protection rating, and operating temperature ceiling represent design variations that do not preclude functional substitution in applications where these parameters are not critical constraints.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (4-1877846-9): The TE Connectivity 4-1877846-9 maintains active product status with established inventory availability. This part is RoHS Compliant and carries MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling. The extended operating temperature range (-50°C to 170°C) supports applications requiring thermal extremes. Selection of this part is appropriate when Medical CPC series continuity is required or when the full temperature operating range is a design requirement.

Substitute Part Selection (EN3C6MX): The Switchcraft EN3C6MX qualifies as a functional substitute based on matching connector topology, termination method, contact material, and regulatory compliance status (ROHS3 Compliant). This part offers higher current capacity (7.5A versus 6A) and enhanced ingress protection (IP66/IP68), making it suitable for applications requiring environmental sealing. The operating temperature ceiling of 65°C represents a constraint that eliminates this substitute in applications requiring operation above this threshold. The Bayonet Lock fastening mechanism differs from the Latch Lock design of the primary part, requiring mechanical interface verification in applications with existing mating connectors.

Both parts carry identical ECCN and HTSUS classifications, supporting equivalent regulatory treatment in export and tariff applications.

Frequently Asked Questions (FAQ)

Q: Can EN3C6MX directly replace 4-1877846-9 in all applications?

A: Direct replacement is possible when the application does not require operation above 65°C and when the Bayonet Lock fastening mechanism is compatible with existing mating connector designs. The EN3C6MX provides equivalent electrical performance for 6-position solder cup termination with gold-plated contacts. Applications operating within the -40°C to 65°C range and not dependent on Latch Lock coupling will function identically.

Q: What are the key electrical differences between these parts?

A: The EN3C6MX provides higher current capacity (7.5A) compared to the 4-1877846-9 (6A). The voltage rating differs: 4-1877846-9 is rated 300VAC, while EN3C6MX is rated 250VAC/DC. Both parts use copper alloy contacts with gold plating and support identical solder cup termination. For applications requiring 300VAC operation, the 4-1877846-9 is the appropriate selection.

Q: How do the fastening mechanisms differ?

A: The 4-1877846-9 uses Latch Lock fastening, while the EN3C6MX uses Bayonet Lock fastening. These represent different mechanical coupling designs. Latch Lock provides push-to-connect engagement, while Bayonet Lock requires rotational coupling. Existing mating connectors designed for one fastening type will not interface with the alternative type without mechanical adapter solutions.

Q: Are both parts suitable for medical applications?

A: The 4-1877846-9 is explicitly designated for medical applications within the Medical CPC series. The EN3C6MX lists medical applications among its general purpose, instrumentation, and marine applications. Both parts are RoHS compliant and carry MSL 1 ratings. Application-specific medical device requirements should be evaluated independently for each part.

Q: What is the temperature operating range constraint for substitution?

A: The 4-1877846-9 operates from -50°C to 170°C, while the EN3C6MX operates from -40°C to 65°C. Applications requiring operation above 65°C must use the 4-1877846-9. Applications operating within -40°C to 65°C can use either part. Applications requiring operation below -40°C must use the 4-1877846-9.

Q: Do both parts have equivalent environmental protection?

A: The 4-1877846-9 does not specify an ingress protection rating. The EN3C6MX provides IP66/IP68 protection (dust tight, water resistant, waterproof). Applications requiring environmental sealing benefit from the EN3C6MX specification. Applications without environmental sealing requirements can use either part.

Q: Are the packaging formats equivalent?

A: The 4-1877846-9 is supplied in unspecified packaging with 810 units in current inventory. The EN3C6MX is supplied in Bulk packaging with 2649 units in current inventory. Packaging format differences do not affect functional compatibility but may influence procurement and handling procedures.