TE Connectivity 1877845-2 Circular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1877845-2 is a 5-position circular connector plug with male pins and solder cup termination, designed for medical applications within the Medical CPC series. This 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 7A at 300VAC.

The 1877845-2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for systems utilizing this connector.

Substiute Parts

1877845-2

TE Connectivity AMP ConnectorsIn Stock: 10981877845-2 Datasheet

Current PartRFQ

1811797-1

TE Connectivity AMP ConnectorsIn Stock: 9261811797-1 Datasheet

SimilarRFQ

1877849-3

TE Connectivity AMP ConnectorsIn Stock: 11371877849-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1877845-2 are identified based on strict electrical and mechanical parameter alignment within the Medical CPC circular connector series. The substitution criteria are:

Critical Parameters for Substitution:

• Connector type: Plug with male pins
• Number of positions: 5
• Termination method: Solder cup
• Current rating: 7A
• Voltage rating: 300VAC
• Operating temperature range: -50°C to 170°C
• Shell material: Thermoplastic
• Fastening type: Latch lock
• Mounting type: Free hanging (in-line)
• Contact finish: Gold plating
• Series classification: Medical CPC
• RoHS compliance: Compliant

The substitute parts 1877849-3 and 1811797-1 satisfy all critical electrical and mechanical parameters. Both are active products within the same Medical CPC series, ensuring functional and dimensional compatibility with the obsolete 1877845-2. Variations in shell color and contact base material (copper alloy versus brass) do not affect electrical performance or mechanical fit within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

Both 1877849-3 and 1811797-1 are qualified substitutes for the obsolete 1877845-2 based on complete electrical and mechanical parameter equivalence within the Medical CPC series.

1877849-3 is recommended as the primary substitute. This part maintains identical contact material composition (copper alloy) and contact finish thickness (29.5µin/0.75µm) as the original 1877845-2. The part is active in production with 1124 units in current inventory, ensuring supply continuity. RoHS compliance and MSL rating are identical to the main part.

1811797-1 is an alternative substitute with equivalent electrical and mechanical specifications. This part features brass contact material instead of copper alloy and includes documented UL94 V-0 flammability rating. The part is active in production with 871 units in current inventory. RoHS compliance and MSL rating are identical to the main part.

Both substitutes are suitable for direct replacement in medical device applications. Selection between 1877849-3 and 1811797-1 depends on specific design requirements regarding contact material composition and documented flammability certification.

Frequently Asked Questions (FAQ)

Q: Can 1877849-3 or 1811797-1 be used as direct replacements for 1877845-2?

A: Yes. Both substitute parts meet all critical electrical and mechanical parameters: 5-position male pin plug configuration, solder cup termination, 7A current rating, 300VAC voltage rating, -50°C to 170°C operating temperature range, gold-plated contacts, thermoplastic shell, latch lock fastening, and free hanging in-line mounting. Both are Medical CPC series connectors with RoHS compliance and MSL 1 rating.

Q: What is the difference between 1877849-3 and 1811797-1?

A: The primary differences are contact base material and documented flammability rating. 1877849-3 uses copper alloy contacts, while 1811797-1 uses brass contacts. 1811797-1 includes a documented UL94 V-0 flammability rating. Both maintain identical contact finish thickness (29.5µin/0.75µm) and all electrical specifications.

Q: Are there packaging differences between the substitute parts?

A: 1877849-3 and 1811797-1 are both supplied in bulk packaging. The original 1877845-2 packaging specification was not provided in the technical data.

Q: Do the substitute parts have the same cable opening specification?

A: The cable opening specification for 1877849-3 and 1811797-1 was not provided in the available technical data. The original 1877845-2 specifies 0.157" to 0.205" (4.00mm to 5.20mm) cable opening.

Q: Are both substitute parts currently in production?

A: Yes. Both 1877849-3 and 1811797-1 are classified as active products. 1877849-3 has 1124 units in current inventory, and 1811797-1 has 871 units in current inventory.

Q: What is the ECCN and HTSUS classification for the substitute parts?

A: Both substitute parts share the same export and tariff classifications as the original 1877845-2: ECCN EAR99 and HTSUS 8536.69.4020.