D50P91C4GL00 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The D50P91C4GL00 is a 50-position D-Sub plug connector manufactured by Amphenol ICC (FCI) in the Delta D series. This through-hole mounted connector features male pins with press-fit termination and is designed for signal applications requiring robust mechanical and electrical performance. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations where legacy compatibility is required.

Substiute Parts

D50P91C4GL00

Amphenol ICC (FCI)In Stock: 794D50P91C4GL00 Datasheet

Current PartRFQ

D50P91C4GL00LF

Amphenol ICC (FCI)In Stock: 722D50P91C4GL00LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the D50P91C4GL00 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility: Current rating (5A), voltage rating (300V), and contact material (phosphor bronze with gold flash finish) must remain identical to ensure signal integrity and power delivery capability.

Mechanical Compatibility: The connector must maintain 50 positions in a 3-row configuration with shell size 5 (DD, D) layout. Through-hole mounting type and press-fit termination are mandatory for PCB integration without modification.

Material and Environmental Specifications: Shell material (steel, tin plated), dielectric material (PBT), flange feature (M3 housing/shell), and operating temperature range (-55°C ~ 125°C) must be preserved. Flammability rating (UL94 V-0) and moisture sensitivity level (MSL 1) define the environmental performance envelope.

Functional Features: Board lock and grounding indents are integral to the connector's mechanical and electrical design and must be present in any substitute.

The substitute part D50P91C4GL00LF meets all these criteria while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The D50P91C4GL00LF is the direct functional equivalent of the D50P91C4GL00 with the following distinctions:

Product Status: The D50P91C4GL00LF carries active product status, ensuring ongoing manufacturer support, availability, and supply chain continuity. The main part D50P91C4GL00 is obsolete and subject to discontinuation without notice.

Regulatory Compliance: The D50P91C4GL00LF is RoHS compliant, meeting current environmental and regulatory requirements for electronic components in most jurisdictions. The main part is RoHS non-compliant and may present compliance challenges in new designs or systems subject to RoHS regulations.

Packaging: The substitute part is supplied in tray packaging, which is standard for production environments and automated assembly processes. The main part uses bulk packaging.

All electrical, mechanical, and environmental parameters remain identical between the two parts, ensuring direct substitution without design modification or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can D50P91C4GL00LF be used as a direct replacement for D50P91C4GL00?

A: Yes. The D50P91C4GL00LF is electrically and mechanically equivalent to the D50P91C4GL00. All critical parameters including connector type, position count, shell size, termination method, current and voltage ratings, operating temperature range, and material specifications are identical. The substitute part is pin-compatible and requires no design changes.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and regulatory compliance. The D50P91C4GL00LF is an active product with RoHS compliance, while the D50P91C4GL00 is obsolete and RoHS non-compliant. Packaging also differs: the substitute uses tray packaging versus bulk packaging for the main part.

Q: Why is the main part listed as obsolete?

A: Obsolescence indicates that the manufacturer has discontinued active production and support for the D50P91C4GL00. The D50P91C4GL00LF represents the current production equivalent and is recommended for all new designs and ongoing system support.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts share identical electrical ratings (5A, 300V), mechanical configuration (50-position, 3-row, shell size 5), termination method (press-fit), and material specifications (steel shell, PBT dielectric, phosphor bronze contacts with gold flash finish). They are functionally interchangeable.

Q: Does the tray packaging of D50P91C4GL00LF affect compatibility?

A: No. Packaging format does not affect electrical or mechanical compatibility. Tray packaging is standard for production environments and automated assembly. The connector itself is identical regardless of packaging type.

Q: Is RoHS compliance a factor in selecting between these parts?

A: RoHS compliance is a regulatory consideration. The D50P91C4GL00LF meets RoHS requirements, making it suitable for applications and markets with RoHS mandates. The non-compliant main part may face restrictions in certain jurisdictions or customer specifications. For new designs, the RoHS-compliant substitute is the appropriate choice.

Q: What is the operating temperature range for both parts?

A: Both the D50P91C4GL00 and D50P91C4GL00LF operate across the identical temperature range of -55°C to 125°C, ensuring thermal performance equivalence across all environmental conditions.