D37S91C4GL00 D-Sub Receptacle Connector - Equivalent & Substitute Parts

Part Overview

The D37S91C4GL00 is a 37-position D-Sub receptacle connector with female sockets, manufactured by Amphenol ICC (FCI) in the Delta D series. This connector features press-fit termination, through-hole mounting, and is designed for signal applications with a 5A current rating and 300V voltage rating.

The D37S91C4GL00 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design compatibility and ensure continued availability for new production runs, repairs, and system upgrades.

Substiute Parts

D37S91C4GL00

Amphenol ICC (FCI)In Stock: 1098D37S91C4GL00 Datasheet

Current PartRFQ

D37S91C4GL00LF

Amphenol ICC (FCI)In Stock: 838D37S91C4GL00LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the D37S91C4GL00 is determined by strict equivalence across the following critical parameters:

• Connector type: Receptacle, Female Sockets
• Position count: 37 positions
• Row configuration: 2 rows
• Shell size and layout: 4 (DC, C)
• Mounting method: Through Hole
• Termination method: Press-Fit
• Current and voltage ratings: 5A / 300V
• Operating temperature range: -55°C ~ 125°C
• Shell material and finish: Steel, Tin Plated
• Contact finish: Gold, Flash
• Flange feature: Housing/Shell (M3)
• Dielectric material: Polybutylene Terephthalate (PBT)
• Flammability rating: UL94 V-0

The primary substitute identified is D37S91C4GL00LF, which maintains full electrical and mechanical compatibility with the obsolete D37S91C4GL00. The D37S91C4GL00LF differs only in packaging format (Tray versus unspecified) and product status (Active versus Obsolete), with identical performance specifications and certifications.

Parameter Comparison

Engineering Selection Recommendations

The D37S91C4GL00LF is the direct substitute for the obsolete D37S91C4GL00. Both parts are electrically and mechanically identical across all specified parameters. The D37S91C4GL00LF offers the advantage of active product status, ensuring ongoing availability and supply chain reliability.

The D37S91C4GL00LF achieves RoHS compliance, whereas the original D37S91C4GL00 does not. For applications subject to RoHS regulations or environmental compliance requirements, the D37S91C4GL00LF is the appropriate selection.

Both parts carry identical electrical ratings (5A, 300V), temperature range (-55°C ~ 125°C), and certifications (UL94 V-0). No performance degradation or functional limitation occurs when substituting D37S91C4GL00LF for D37S91C4GL00 in existing designs.

Frequently Asked Questions (FAQ)

Q: Can D37S91C4GL00LF be used as a direct replacement for D37S91C4GL00?

A: Yes. The D37S91C4GL00LF is electrically and mechanically equivalent to the D37S91C4GL00 across all specified parameters, including connector type, position count, shell size, termination method, current and voltage ratings, and operating temperature range.

Q: What is the difference between D37S91C4GL00 and D37S91C4GL00LF?

A: The primary differences are product status and RoHS compliance. The D37S91C4GL00 is obsolete and RoHS non-compliant, while the D37S91C4GL00LF is active and RoHS compliant. Packaging differs (unspecified versus Tray). All electrical and mechanical specifications are identical.

Q: Is the D37S91C4GL00LF available in the same packaging as the original part?

A: The D37S91C4GL00LF is supplied in Tray packaging. The original D37S91C4GL00 packaging format is not specified in the technical data. Confirm packaging requirements with your procurement or assembly team.

Q: Does the RoHS compliance difference affect connector performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical or mechanical performance. Both parts meet identical electrical specifications and certifications.

Q: Are there any temperature or current rating differences between these parts?

A: No. Both parts are rated for 5A current, 300V voltage, and operate across the identical temperature range of -55°C ~ 125°C.

Q: Can I use D37S91C4GL00LF in legacy systems designed for D37S91C4GL00?

A: Yes. The D37S91C4GL00LF maintains full compatibility with existing designs, PCB layouts, and connector mating interfaces. No design modifications are required.