D09P91C4PL00 Equivalent & Substitute Parts

Part Overview

The D09P91C4PL00 is a 9-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, designed for signal applications requiring 5A current capacity at 300V. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs.

Key Parameters

Parameter	Value
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	9
Number of Rows	2
Shell Size, Connector Layout	1 (DE, E)
Mounting Type	Through Hole
Termination	Press-Fit
Current Rating	5A
Voltage Rating	300V
Operating Temperature Range	-55°C ~ 125°C
Shell Material, Finish	Steel, Tin Plated
Contact Material	Phosphor Bronze
Contact Finish	Gold, Flash
Dielectric Material	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0
Flange Feature	Housing/Shell (M3)
Features	Grounding Indents
Color	Black

Substitute Part Grouping Explanation

Substitution eligibility for the D09P91C4PL00 is determined by strict equivalence across the following critical parameters:

Connector style, type, and pin configuration (D-Sub plug, 9-position, 2-row, male pins)
Shell size and connector layout (Size 1, DE/E configuration)
Mounting method and termination technology (through-hole, press-fit)
Electrical ratings (5A current, 300V voltage)
Operating temperature range (-55°C ~ 125°C)
Material specifications (PBT dielectric, phosphor bronze contacts, gold flash finish)
Mechanical interface (M3 housing/shell flange)

The substitute part D09P91C4PL00LF maintains full compatibility across all these parameters. Variations in shell finish material (tin-nickel plated versus tin plated) and product status (active versus obsolete) do not affect functional interchangeability in the specified application context.

Parameter Comparison

Parameter	D09P91C4PL00	D09P91C4PL00LF
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	Delta D	Delta D
Connector Style	D-Sub	D-Sub
Connector Type	Plug, Male Pins	Plug, Male Pins
Number of Positions	9	9
Number of Rows	2	2
Shell Size, Connector Layout	1 (DE, E)	1 (DE, E)
Mounting Type	Through Hole	Through Hole
Termination	Press-Fit	Press-Fit
Current Rating	5A	5A per Contact
Voltage Rating	300V	300V
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C
Shell Material, Finish	Steel, Tin Plated	Steel, Tin-Nickel Plated
Contact Material	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold, Flash	Gold, Flash
Dielectric Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0	UL94 V-0
Flange Feature	Housing/Shell (M3)	Housing/Shell (M3)
Features	Grounding Indents	Grounding Indents
Color	Black	Black
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS Compliant
Packaging	Not specified	Tray

Engineering Selection Recommendations

The D09P91C4PL00LF is the direct functional equivalent of the D09P91C4PL00. Both connectors share identical electrical, mechanical, and thermal specifications within the Delta D series.

Selection between these parts should be based on the following criteria:

For new designs and ongoing production: D09P91C4PL00LF is the preferred choice. This part carries active product status, RoHS compliance, and REACH unaffected designation, aligning with current regulatory requirements and supply chain continuity.

For legacy system maintenance: D09P91C4PL00 remains functionally compatible where existing inventory is available. The tin-plated shell finish and RoHS non-compliant status reflect its obsolete classification but do not affect electrical or mechanical performance in applications already qualified to this specification.

Shell finish variation (tin plated versus tin-nickel plated) does not impact connector function, mating performance, or signal integrity in the specified application range.

Frequently Asked Questions (FAQ)

Q: Can D09P91C4PL00LF be used as a direct replacement for D09P91C4PL00?

A: Yes. Both connectors are functionally equivalent across all critical parameters: connector type, pin configuration, electrical ratings, operating temperature range, and mechanical interface. The D09P91C4PL00LF is the active production equivalent.

Q: What is the difference between the tin-plated and tin-nickel plated shell finishes?

A: The shell material finish differs between the two parts. D09P91C4PL00 uses steel with tin plating; D09P91C4PL00LF uses steel with tin-nickel plating. Both finishes provide corrosion protection and do not affect connector performance or mating characteristics.

Q: Why is D09P91C4PL00 classified as obsolete?

A: The D09P91C4PL00 has been superseded by the D09P91C4PL00LF in the manufacturer's product line. The newer variant offers RoHS compliance and active production status, making it the recommended choice for new applications.

Q: Are there packaging differences between these parts?

A: D09P91C4PL00LF is supplied in tray packaging. Packaging specification for D09P91C4PL00 is not provided. Packaging does not affect connector functionality or interchangeability.

Q: What is the current rating per contact?

A: Both connectors are rated for 5A. The D09P91C4PL00LF specification explicitly states 5A per contact, confirming the same current capacity as the original part.

Q: Are these connectors RoHS compliant?

A: D09P91C4PL00LF is RoHS compliant. D09P91C4PL00 is RoHS non-compliant. For applications requiring RoHS compliance, D09P91C4PL00LF is the appropriate selection.

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