FCE17C37SB4EB D-Sub 37 Position Receptacle Connector

Part Overview

The FCE17C37SB4EB is a 37 position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This connector features female sockets in a right-angle, through-hole solder termination configuration with a board-side flange. The part is currently active in production with 942 units in stock.

D-Sub connectors of this type are essential for applications requiring robust serial communication, parallel data transfer, and signal distribution in industrial, computing, and telecommunications equipment. Alternative equivalent parts may be required due to supply chain constraints, design revisions, or specific application requirements that demand different electrical or mechanical characteristics.

Substiute Parts

FCE17C37SB4EB

Amphenol ICC (Commercial Products)In Stock: 1051FCE17C37SB4EB Datasheet

Current PartRFQ

5745441-4

TE Connectivity AMP ConnectorsIn Stock: 9635745441-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FCE17C37SB4EB is permissible with the TE Connectivity AMP Connectors part number 5745441-4 based on the following critical parameters that determine functional equivalence:

Core Matching Parameters:

• Connector style: D-Sub
• Connector type: Receptacle, Female Sockets
• Number of positions: 37
• Number of rows: 2
• Shell size and connector layout: 4 (DC, C)
• Mounting type: Through Hole, Right Angle
• Termination method: Solder
• Shell material and finish: Steel, Tin Plated
• Contact finish: Gold
• Contact material: Phosphor Bronze
• Material flammability rating: UL94 V-0
• RoHS compliance: Yes
• Moisture sensitivity level: 1 (Unlimited)

Allowable Parameter Variations: The substitute part 5745441-4 exhibits differences in current rating (6A versus 5A), operating temperature range (-55°C ~ 105°C versus -40°C ~ 85°C), backset spacing (0.454" versus 0.405"), flange feature configuration (mating side with standard screws versus board side with 4-40), and dielectric material composition (polyamide nylon glass filled versus thermoplastic glass filled). These variations remain within acceptable substitution tolerances for D-Sub 37 position receptacle connectors when the core functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both the FCE17C37SB4EB and 5745441-4 maintain active product status and full RoHS compliance, confirming their suitability for current design implementations. The substitute part 5745441-4 provides enhanced electrical performance with a higher current rating of 6A and an extended operating temperature range of -55°C ~ 105°C, which accommodates more demanding environmental conditions than the original part's -40°C ~ 85°C specification.

The primary design consideration involves the flange feature configuration. The FCE17C37SB4EB uses a board-side flange with 4-40 mounting holes, while the 5745441-4 features a mating-side flange with standard screws. This difference requires evaluation of the mechanical mounting interface in the target application. Additionally, the backset spacing variation (0.405" versus 0.454") must be verified against printed circuit board layout constraints.

Both connectors employ gold-plated contacts on phosphor bronze bases with steel tin-plated shells, ensuring equivalent signal integrity and corrosion resistance. The dielectric material difference between thermoplastic and polyamide nylon does not compromise functional equivalence for standard D-Sub applications, as both materials meet UL94 V-0 flammability requirements and maintain MSL 1 moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the 5745441-4 be used as a direct replacement for the FCE17C37SB4EB in all applications?

A: The 5745441-4 is functionally equivalent for D-Sub 37 position receptacle applications. However, the flange feature configuration and backset spacing differences require verification against your specific printed circuit board design and mechanical mounting requirements before implementation.

Q: What is the significance of the backset spacing difference between these connectors?

A: Backset spacing (0.405" for FCE17C37SB4EB versus 0.454" for 5745441-4) defines the distance from the connector's mating face to the flange mounting surface. This parameter directly affects the connector's depth on the circuit board and must align with your PCB layout design. Verify this dimension against your mechanical design specifications.

Q: Are there differences in electrical performance between these two connectors?

A: Both connectors feature identical contact materials (phosphor bronze), contact finish (gold), and shell construction (steel, tin plated). The 5745441-4 offers a higher current rating of 6A compared to the FCE17C37SB4EB's 5A rating. For applications operating at or near the 5A limit, the substitute part provides additional current capacity margin.

Q: How do the operating temperature ranges differ, and does this affect substitution?

A: The FCE17C37SB4EB operates from -40°C to 85°C, while the 5745441-4 operates from -55°C to 105°C. The substitute part accommodates a wider temperature envelope. If your application operates within the original part's temperature range, both connectors are suitable. For applications requiring extended temperature performance, the 5745441-4 is the appropriate selection.

Q: What is the difference between board-side and mating-side flange configurations?

A: The FCE17C37SB4EB features a board-side flange, meaning the mounting surface is positioned toward the circuit board. The 5745441-4 features a mating-side flange, positioning the mounting surface toward the mating connector. This affects the mechanical assembly approach and must be evaluated against your system's connector orientation and mounting methodology.

Q: Are both connectors RoHS compliant?

A: Yes, both the FCE17C37SB4EB and 5745441-4 are RoHS compliant, confirming their suitability for applications subject to RoHS regulations and environmental compliance requirements.

Q: What is the moisture sensitivity level for these connectors?

A: Both connectors maintain an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors do not require special moisture control handling during storage, transportation, or assembly.