DEMV09P500MN 9 Position D-Sub Plug Equivalent & Substitute Parts

Part Overview

The DEMV09P500MN is a 9 position D-Sub plug connector manufactured by Amphenol ICC (FCI) in the DM HE508 series. This right-angle, through-hole solder termination connector features male pins with a mating side female screwlock (4-40) flange and is designed for signal applications. The part is currently active in production with 801 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers are preferred for supply chain diversification, or when specific compliance requirements (such as RoHS status) must be met for particular applications.

Key Parameters

Parameter	DEMV09P500MN
Connector Type	Plug, Male Pins
Number of Positions	9
Shell Size, Connector Layout	1 (DE, E)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Flange Feature	Mating Side, Female Screwlock (4-40)
Current Rating	7.5A per Contact
Voltage Rating	300V
Operating Temperature	-55°C ~ 155°C
Shell Material, Finish	Steel, Yellow Cadmium Plated
Contact Finish	Gold
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility for the DEMV09P500MN is determined by the following critical parameters:

Mandatory Matching Parameters:

Connector Type: Plug, Male Pins
Number of Positions: 9
Shell Size, Connector Layout: 1 (DE, E)
Mounting Type: Through Hole, Right Angle
Termination: Solder
Material Flammability Rating: UL94 V-0

Allowable Variation Parameters:

Current Rating: Substitute parts may have lower current ratings (minimum 3A observed in alternatives)
Voltage Rating: Substitute parts may have lower voltage ratings (minimum 125V observed)
Operating Temperature: Substitute parts may have narrower temperature ranges (minimum -55°C ~ 105°C observed)
Shell Material, Finish: Alternative finishes permitted (Tin Plated, Steel without cadmium)
Contact Finish: Gold or alternative finishes acceptable
Flange Feature: Variations in flange configuration permitted (Board Side, Housing/Shell, Mating Side with different screw sizes)
RoHS Status: Both compliant and non-compliant alternatives listed

All identified substitute parts maintain the core D-Sub 9-position plug configuration with right-angle through-hole solder termination and meet the UL94 V-0 flammability requirement.

Parameter Comparison

Parameter	DEMV09P500MN	09651626817	5745434-8	FCE17E09PB440	L717SDE09P1ACH3R	L717SDE09P1ACH4R	L717SDE09PA4CH4F
Manufacturer	Amphenol ICC (FCI)	HARTING	TE Connectivity AMP	Amphenol ICC (Commercial)	Amphenol ICC (Commercial)	Amphenol ICC (Commercial)	Amphenol ICC (Commercial)
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	9	9	9	9	9	9	9
Shell Size, Connector Layout	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	7.5A per Contact	6.5A	6A	5A	3A	3A	3A
Voltage Rating	300V	—	125V	—	250V	250V	250V
Operating Temperature	-55°C ~ 155°C	-55°C ~ 125°C	-55°C ~ 105°C	-40°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Shell Material, Finish	Steel, Yellow Cadmium Plated	Steel	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated
Contact Finish	Gold	—	Gold	Gold	Gold	Gold	Gold
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	RoHS non-compliant
Flange Feature	Mating Side, Female Screwlock (4-40)	Mating Side, Female Screwlock (4-40)	Mating Side, Standard Screws	Housing/Shell (4-40)	Board Side (M3)	Board Side (4-40)	Mating Side, Female Screwlock (4-40)
Backset Spacing	0.406" (10.30mm)	0.409" (10.40mm)	0.454" (11.53mm)	0.405" (10.29mm)	0.406" (10.30mm)	0.406" (10.30mm)	0.318" (8.08mm)

Engineering Selection Recommendations

Direct Substitutes (Matching Flange Configuration):

L717SDE09PA4CH4F is the closest functional equivalent to DEMV09P500MN, maintaining identical mating side female screwlock (4-40) flange configuration and backset spacing of 0.406" (10.30mm). Both parts share the same base product number (L717SDE09) within the Amphenol ICC commercial product line. This part is suitable for applications where the original flange mounting interface is required. Note that L717SDE09PA4CH4F is RoHS non-compliant, matching the compliance status of the primary part.

High Current Alternatives (6A+ Rating):

09651626817 (HARTING) and 5745434-8 (TE Connectivity AMP) provide current ratings of 6.5A and 6A respectively, approaching the 7.5A rating of DEMV09P500MN. Both parts are RoHS compliant. The HARTING part maintains the mating side female screwlock (4-40) flange. The TE Connectivity part features mating side standard screws and a wider backset spacing of 0.454" (11.53mm), which may require PCB layout verification.

RoHS Compliant Alternatives:

For applications requiring RoHS compliance, 09651626817 (HARTING, ROHS3 Compliant), 5745434-8 (TE Connectivity, RoHS Compliant), FCE17E09PB440 (Amphenol ICC Commercial, RoHS Compliant), L717SDE09P1ACH3R (Amphenol ICC Commercial, RoHS Compliant), and L717SDE09P1ACH4R (Amphenol ICC Commercial, ROHS3 Compliant) are available. Current ratings range from 3A to 6.5A, with operating temperature ranges from -40°C ~ 85°C to -55°C ~ 125°C.

Board-Side Flange Alternatives:

L717SDE09P1ACH3R and L717SDE09P1ACH4R feature board-side flange configurations (M3 and 4-40 respectively) instead of mating-side, suitable for applications where board-level mounting is preferred. Both are RoHS compliant with 3A current ratings and -55°C ~ 125°C operating temperature range.

All substitute parts maintain UL94 V-0 flammability rating and 9-position D-Sub plug configuration with through-hole right-angle solder termination.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a lower current rating than the original DEMV09P500MN?

A: Substitution with lower current ratings is permissible only if your application's actual current requirements do not exceed the substitute part's rating. The DEMV09P500MN is rated at 7.5A per contact. Alternatives rated at 6.5A, 6A, 5A, or 3A must be evaluated against your circuit's maximum current draw per contact. Exceeding a part's current rating may result in connector degradation or failure.

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

A: Mating-side flanges (DEMV09P500MN, 09651626817, L717SDE09PA4CH4F) mount on the connector's mating interface and secure the plug to the receptacle. Board-side flanges (L717SDE09P1ACH3R, L717SDE09P1ACH4R) mount directly to the PCB. These configurations are not interchangeable; selection depends on your mechanical assembly design.

Q: Are all substitute parts compatible with the same PCB footprint as DEMV09P500MN?

A: Backset spacing varies among alternatives. DEMV09P500MN specifies 0.406" (10.30mm), matching L717SDE09P1ACH3R, L717SDE09P1ACH4R, and FCE17E09PB440 (0.405"). The HARTING part (09651626817) has 0.409" spacing, and the TE Connectivity part (5745434-8) has 0.454" spacing. Verify PCB hole positioning before substitution, particularly for the TE Connectivity alternative.

Q: What is the significance of RoHS compliance status in selecting a substitute?

A: RoHS compliance restricts the use of hazardous substances in electrical and electronic equipment. DEMV09P500MN is RoHS non-compliant due to yellow cadmium plating. If your application or market requires RoHS compliance, select from the compliant alternatives: 09651626817, 5745434-8, FCE17E09PB440, L717SDE09P1ACH3R, or L717SDE09P1ACH4R. L717SDE09PA4CH4F remains non-compliant, matching the original part's status.

Q: How do operating temperature ranges affect part selection?

A: DEMV09P500MN operates from -55°C to 155°C. Substitute parts have narrower ranges: most Amphenol alternatives operate to -55°C ~ 125°C, the TE Connectivity part to -55°C ~ 105°C, and the FCE17E09PB440 to -40°C ~ 85°C. Select a substitute only if your application's temperature extremes fall within the part's specified range.

Q: Can I substitute based on manufacturer alone?

A: No. Manufacturer alone does not determine compatibility. All parameters listed in the Key Parameters section must be verified. For example, both HARTING (09651626817) and TE Connectivity (5745434-8) are established connector manufacturers, but they differ in current rating, voltage rating, flange type, and backset spacing. Verify all electrical and mechanical specifications against your design requirements.

Q: What does "Contact Form" indicate, and why do some parts list it as blank?

A: Contact Form describes the manufacturing method of the connector contacts (Machined, Stamped, or other). DEMV09P500MN uses Machined contacts, while several alternatives use Stamped contacts. This affects contact durability and mating force characteristics. Parts with blank Contact Form data lack this specification in the provided documentation.

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