6-1877846-1 Circular Connector Plug Equivalent & Substitute Parts

Part Overview

The 6-1877846-1 is a 6-position circular connector plug manufactured by TE Connectivity AMP Connectors, designed for medical applications. This male pin connector features solder cup termination and gold-plated mating contacts. The part is currently active in production with 819 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when application requirements necessitate different performance characteristics or packaging configurations.

Substiute Parts

6-1877846-1

TE Connectivity AMP ConnectorsIn Stock: 8306-1877846-1 Datasheet

Current PartRFQ

EN3C6MX

Switchcraft Inc.In Stock: 2741EN3C6MX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6-1877846-1 with the EN3C6MX is based on the following matching parameters:

Matching Criteria:

• Connector type: Both are plug connectors with male pins
• Position count: Both feature 6-position configurations
• Termination method: Both utilize solder cup termination
• Contact finish: Both employ gold-plated mating contacts
• Contact material: Both use copper alloy contacts
• Mounting configuration: Both are free hanging (in-line) designs
• Primary material: Both feature thermoplastic shell construction
• Compliance: Both are RoHS compliant and carry EAR99 ECCN classification
• Moisture sensitivity: Both rated MSL 1 (Unlimited)

Differing Parameters: The EN3C6MX substitute differs in fastening mechanism (bayonet lock versus latch lock), orientation (keyed versus 0°), current rating (7.5A versus 6A), voltage rating (250VAC/DC versus 300VAC), operating temperature range (-40°C ~ 65°C versus -50°C ~ 170°C), ingress protection (IP66/IP68 versus unspecified), and insert material (elastomer versus polyphenylene sulfide).

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (6-1877846-1): The 6-1877846-1 remains the specified component for applications requiring the Medical CPC series designation, the extended operating temperature range of -50°C to 170°C, and the higher voltage rating of 300VAC. This part is RoHS compliant and carries active product status with established inventory availability.

Substitute Part Selection (EN3C6MX): The EN3C6MX serves as a functional substitute when the primary part is unavailable. This substitute is suitable for applications where the operating temperature range of -40°C to 65°C is acceptable and the voltage requirement does not exceed 250VAC/DC. The EN3C6MX offers enhanced ingress protection (IP66/IP68) and higher current capacity (7.5A), making it appropriate for general purpose, instrumentation, marine, and medical applications. The bayonet lock fastening mechanism and keyed orientation differ from the primary part and must be evaluated for mechanical compatibility with mating receptacles.

Both parts maintain RoHS compliance and unlimited moisture sensitivity ratings, supporting use in regulated environments.

Frequently Asked Questions (FAQ)

Q: Can the EN3C6MX directly replace the 6-1877846-1 in all applications?

A: Direct replacement requires verification of three critical parameters: (1) fastening mechanism compatibility—the EN3C6MX uses bayonet lock versus the 6-1877846-1 latch lock; (2) operating temperature requirements—the EN3C6MX operates to 65°C maximum versus 170°C for the primary part; (3) voltage rating—the EN3C6MX is rated 250VAC/DC versus 300VAC for the primary part. Mating receptacle design must accommodate the bayonet lock and keyed orientation of the substitute.

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

A: The 6-1877846-1 provides 6A current capacity at 300VAC, while the EN3C6MX provides 7.5A current capacity at 250VAC/DC. Applications requiring the full 300VAC rating or operating above 65°C must use the primary part.

Q: Are both parts suitable for medical applications?

A: The 6-1877846-1 is designated for the Medical CPC series. The EN3C6MX lists medical as one of multiple application categories alongside general purpose, instrumentation, and marine. Both parts are RoHS compliant and carry unlimited moisture sensitivity ratings appropriate for medical device environments.

Q: What is the difference in fastening mechanisms?

A: The 6-1877846-1 uses a latch lock fastening type, while the EN3C6MX uses a bayonet lock. These mechanisms are mechanically distinct and require compatible mating receptacles. The EN3C6MX also features keyed orientation, whereas the 6-1877846-1 has 0° orientation.

Q: How do the insert materials differ?

A: The 6-1877846-1 uses polyphenylene sulfide (PPS) insert material, while the EN3C6MX uses elastomer. Both materials support the 6-position configuration and solder cup termination, but material selection affects mechanical properties and environmental resistance.

Q: What packaging considerations apply to these parts?

A: The 6-1877846-1 packaging is not specified in available documentation. The EN3C6MX is supplied in bulk packaging. Inventory availability differs: 819 units for the primary part and 2649 units for the substitute.

Q: Do both parts meet the same compliance standards?

A: Both parts are RoHS compliant and carry EAR99 ECCN classification. The 6-1877846-1 is RoHS compliant, while the EN3C6MX is ROHS3 compliant. Both carry HTSUS code 8536.69.4020 and maintain MSL 1 (Unlimited) moisture sensitivity ratings.