4-1877846-1 Equivalent & Substitute Parts

Part Overview

The 4-1877846-1 is a 6-position circular connector plug with male pins and solder cup termination manufactured by TE Connectivity AMP Connectors. This connector is part of the Medical CPC series and is designed for applications requiring reliable electrical connections in medical environments. The product is currently active and available in inventory. Substitute parts are identified when equivalent functional performance can be achieved with alternative manufacturers' components that meet the same or compatible electrical and mechanical specifications.

Substiute Parts

4-1877846-1

TE Connectivity AMP ConnectorsIn Stock: 8434-1877846-1 Datasheet

Current PartRFQ

EN3C6MX

Switchcraft Inc.In Stock: 2741EN3C6MX Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4-1877846-1 is based on the following critical parameters that must be maintained or exceeded:

Functional Equivalence Criteria:

• Connector type: Plug with male pins
• Position count: 6 positions
• Termination method: Solder cup
• Contact finish: Gold plating for mating surfaces
• Mounting configuration: Free hanging in-line orientation

Electrical Compatibility Criteria:

• Current rating: Minimum 6A
• Voltage rating: Minimum 300VAC or equivalent DC rating
• Contact material: Copper alloy construction

Environmental & Compliance Criteria:

• Operating temperature range: Must accommodate -50°C to 170°C or be suitable for the intended application temperature window
• RoHS compliance status: Active product status with current compliance certification
• Moisture sensitivity: MSL 1 (Unlimited) classification

The substitute part EN3C6MX from Switchcraft Inc. meets these functional and electrical criteria while offering alternative fastening and ingress protection characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (4-1877846-1): The 4-1877846-1 is recommended for applications requiring the specified operating temperature range of -50°C to 170°C. This part is actively manufactured and maintains RoHS compliance. The latch lock fastening mechanism and Medical CPC series designation indicate suitability for medical device applications.

Substitute Part Selection (EN3C6MX): The EN3C6MX is suitable as a substitute when the application operating temperature range is -40°C to 65°C and does not exceed these limits. This part offers higher current capacity (7.5A versus 6A) and enhanced ingress protection (IP66/IP68). The bayonet lock fastening differs from the primary part's latch lock mechanism. Both parts maintain RoHS compliance and MSL 1 moisture sensitivity ratings. The EN3C6MX is actively produced and available in higher inventory quantities.

Compatibility Considerations: Substitution is valid when the application environment and temperature requirements align with the substitute part's specifications. The cable opening range of the EN3C6MX (0.160" ~ 0.265") encompasses the primary part's range (0.157" ~ 0.205"), providing compatibility for standard cable gauges. The voltage rating difference (250VAC/DC for EN3C6MX versus 300VAC for 4-1877846-1) must be evaluated against specific circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can EN3C6MX replace 4-1877846-1 in all applications?

A: No. The EN3C6MX operates within -40°C to 65°C, while the 4-1877846-1 operates within -50°C to 170°C. Substitution is valid only when the application environment falls within the EN3C6MX temperature range. Additionally, the voltage rating of EN3C6MX is 250VAC/DC compared to 300VAC for the primary part.

Q: What is the difference in fastening mechanisms?

A: The 4-1877846-1 uses a latch lock fastening type, while the EN3C6MX uses a bayonet lock. These are mechanically different coupling methods. Verify that the mating connector or application interface is compatible with the bayonet lock design before substitution.

Q: Are both parts RoHS compliant?

A: Yes. The 4-1877846-1 is RoHS Compliant, and the EN3C6MX is ROHS3 Compliant. Both meet current RoHS requirements.

Q: What is the significance of the cable opening specifications?

A: The cable opening range defines the acceptable cable diameter for proper strain relief and connection. The 4-1877846-1 accepts cables 0.157" to 0.205" (4.00mm to 5.20mm), while the EN3C6MX accepts cables 0.160" to 0.265" (4.06mm to 6.73mm). The EN3C6MX accommodates a wider range, including larger diameter cables.

Q: Does the EN3C6MX provide better environmental protection?

A: Yes. The EN3C6MX is rated IP66/IP68 (dust tight, water resistant, waterproof), while the 4-1877846-1 does not specify an ingress protection rating. The EN3C6MX is suitable for applications requiring enhanced environmental sealing.

Q: What is the current capacity difference?

A: The 4-1877846-1 is rated for 6A, while the EN3C6MX is rated for 7.5A. The EN3C6MX provides 25% higher current capacity, making it suitable for applications with higher current demands within its voltage and temperature specifications.

Q: Are the contact materials equivalent?

A: Yes. Both parts use copper alloy contacts with gold plating for mating surfaces, ensuring equivalent electrical performance and corrosion resistance in the contact interface.

Q: What packaging differences exist?

A: The 4-1877846-1 is supplied in unspecified packaging with 809 pieces in stock. The EN3C6MX is supplied in bulk packaging with 2649 pieces in stock. Packaging type may affect handling and storage procedures.