DEM09P543 D-Sub 9-Position Right Angle Solder Plug Connector

Part Overview

The DEM09P543 is a 9-position D-Sub plug connector manufactured by Amphenol ICC (FCI) in the DM HE501 series. This through-hole, right-angle solder connector is designed for signal applications in harsh environments with a current rating of 7.5A per contact and operating temperature range of -55°C to 125°C. The connector features a steel shell with yellow cadmium plating, gold-plated contacts, and UL94 V-0 flammability rating. As an active product with 705 units in stock, substitute parts are identified to provide design flexibility, alternative sourcing options, and compliance alternatives for applications requiring RoHS3 compliance or different electrical specifications.

Substiute Parts

DEM09P543

Amphenol ICC (FCI)In Stock: 765DEM09P543 Datasheet

Current PartRFQ

09641247232

HARTINGIn Stock: 82109641247232 Datasheet

MFR RecommendedRFQ

09661237803

HARTINGIn Stock: 114409661237803 Datasheet

MFR RecommendedRFQ

09661626813

HARTINGIn Stock: 108209661626813 Datasheet

MFR RecommendedRFQ

09661627813

HARTINGIn Stock: 88309661627813 Datasheet

MFR RecommendedRFQ

09661636813

HARTINGIn Stock: 105109661636813 Datasheet

MFR RecommendedRFQ

09661637813

HARTINGIn Stock: 75509661637813 Datasheet

MFR RecommendedRFQ

5745434-8

TE Connectivity AMP ConnectorsIn Stock: 20685745434-8 Datasheet

MFR RecommendedRFQ

L717SDE09P1ACH4R

Amphenol ICC (Commercial Products)In Stock: 1408L717SDE09P1ACH4R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DEM09P543 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Parameters:

• 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, Right Angle
• Termination: Solder
• Material Flammability Rating: UL94 V-0

Electrical Performance Parameters:

• Current Rating: 7.5A (primary specification)
• Operating Temperature: -55°C ~ 125°C (full range compatibility)

Substitution Categories:

Category A – Direct Electrical Equivalents (HARTING 09661237803, 09661627813, 09661636813, 09661637813): These parts maintain 7.5A current rating, -55°C to 125°C operating temperature, UL94 V-0 rating, and identical mechanical form factor. Differences include contact material (Copper Alloy vs. Brass), dielectric material composition, and flange features. All are RoHS3 compliant.

Category B – Reduced Current Rating (HARTING 09641247232): Maintains mechanical compatibility and UL94 V-0 rating but operates at 6A current rating and -20°C to 125°C temperature range. Includes additional features (Board Lock, Filter, Grounding Indents, Mounting Brackets) and RoHS3 compliance.

Category C – Reduced Current and Temperature (TE Connectivity 5745434-8): Operates at 6A current rating and -55°C to 105°C temperature range. Features tin-plated steel shell, brass contacts, and RoHS compliance. Includes Grounding Indents and Mounting Brackets.

Category D – Reduced Current Rating (Amphenol ICC L717SDE09P1ACH4R): Operates at 3A current rating with 250V voltage rating. Maintains -55°C to 125°C operating temperature and RoHS3 compliance. Features board-side flange and stamped contact form.

Parameter Comparison

Engineering Selection Recommendations

For RoHS3 Compliance Requirement: HARTING parts 09661237803, 09661626813, 09661627813, 09661636813, and 09661637813 are ROHS3 compliant alternatives. Among these, 09661237803, 09661627813, 09661636813, and 09661637813 maintain the full -55°C to 125°C operating temperature range and 7.5A current rating of the original DEM09P543. Selection between these four depends on flange feature requirements (Housing/Shell vs. Mating Side Female Screwlock) and backset spacing specifications.

For Maintained Electrical Performance with Compliance: HARTING 09661237803 provides the closest electrical match with 7.5A current rating, -55°C to 125°C operating temperature, and ROHS3 compliance. This part is suitable for applications where the original DEM09P543 specifications must be preserved while achieving RoHS3 compliance.

For Reduced Current Applications: TE Connectivity 5745434-8 operates at 6A current rating with -55°C to 105°C temperature range and RoHS compliance. This part is appropriate for applications with lower current demands and maximum operating temperature not exceeding 105°C. Amphenol ICC L717SDE09P1ACH4R operates at 3A current rating and is suitable only for low-current signal applications.

For Lower Temperature Minimum Requirement: HARTING 09641247232 operates at -20°C minimum temperature with 7.5A current rating and includes additional features (Board Lock, Filter, Grounding Indents, Mounting Brackets). This part is suitable for applications where -55°C minimum temperature is not required.

Product Status Consideration: All substitute parts maintain Active product status, ensuring continued availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can HARTING 09661237803 be used as a direct replacement for DEM09P543? A: HARTING 09661237803 maintains the same connector style, position count, mounting type, termination method, and current rating (7.5A). Both operate across -55°C to 125°C. The primary differences are shell material finish (not specified vs. yellow cadmium plated), contact material (Copper Alloy vs. Brass), and dielectric material composition. Mechanical and electrical compatibility is established. RoHS3 compliance is an additional benefit.

Q: What is the impact of using TE Connectivity 5745434-8 with its 6A current rating instead of 7.5A? A: The 6A current rating of 5745434-8 represents a 20% reduction from the DEM09P543 specification. This part is suitable only for applications where the actual current per contact does not exceed 6A. The operating temperature range is also reduced to -55°C to 105°C, limiting use in applications requiring operation above 105°C.

Q: Why does Amphenol ICC L717SDE09P1ACH4R have a 3A current rating? A: L717SDE09P1ACH4R is designed for lower-current signal applications. The 3A current rating reflects its design specifications and contact geometry. This part is not suitable for applications requiring the 7.5A capability of the original DEM09P543.

Q: Are all HARTING substitute parts mechanically interchangeable? A: HARTING parts 09661237803, 09661626813, 09661627813, 09661636813, and 09661637813 share the same D-Sub 9-position form factor, through-hole right-angle mounting, and solder termination. Mechanical interchangeability is established. Differences in flange features (Housing/Shell vs. Mating Side Female Screwlock) and backset spacing must be verified against specific application requirements.

Q: What compliance certifications are relevant for substitute selection? A: The original DEM09P543 is RoHS non-compliant. HARTING parts 09661237803, 09661626813, 09661627813, 09661636813, 09661637813, and Amphenol ICC L717SDE09P1ACH4R are ROHS3 compliant. TE Connectivity 5745434-8 is RoHS compliant. All parts maintain UL94 V-0 flammability rating and REACH Unaffected or Vendor Undefined status. Selection depends on compliance requirements of the target application.

Q: Can packaging type (Tray vs. Bulk) affect substitution decisions? A: Packaging type does not affect electrical or mechanical compatibility. DEM09P543 is supplied in Tray packaging with 705 units in stock. Substitute parts are supplied in Bulk packaging with varying inventory levels (673 to 2054 units). Packaging selection depends on procurement and storage requirements, not functional compatibility.

Q: What is the significance of contact material differences (Brass vs. Copper Alloy)? A: Both brass and copper alloy contacts are suitable for signal applications. The DEM09P543 uses brass contacts with gold plating. HARTING substitutes use copper alloy contacts. Both materials provide adequate electrical conductivity and corrosion resistance when properly finished. Material selection does not affect functional compatibility for standard signal applications.