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L77DAH15SU
Part Overview
The L77DAH15SU is a 15 Position D-Sub Receptacle connector manufactured by Amphenol ICC (Commercial Products). This vertical through-hole, solder-terminated connector features female sockets with a 2-row (DA, A shell size) configuration and is rated for 7.5A at 300V. The connector is RoHS compliant and rated UL94 V-0 for material flammability. This part maintains Active product status with 734 units currently in stock.
Alternative D-Sub receptacle models are necessary when design specifications require different mounting configurations (panel mount versus board mount), alternative shell material finishes, modified dielectric materials, or when substituting obsolete product lines with active equivalents.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | L77DAH15SU |
| Manufacturer | Amphenol ICC (Commercial Products) |
| Connector Type | Receptacle, Female Sockets |
| Number of Positions | 15 |
| Shell Size, Connector Layout | 2 (DA, A) |
| Mounting Type | Through Hole |
| Termination | Solder |
| Current Rating | 7.5A |
| Voltage Rating | 300V |
| Operating Temperature Range | -55°C to 125°C |
| Shell Material, Finish | Steel, Tin Plated |
| Contact Finish | Gold (8.00µin / 0.203µm) |
| Contact Material | Brass |
| Flange Feature | Board Side (4-40) |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution for the L77DAH15SU is determined by alignment across the following critical electrical and mechanical parameters:
- Connector Type and Positions: All substitutes maintain 15-position, female socket receptacle configuration with 2-row (DA, A) D-Sub layout
- Mounting and Termination: Alternatives are grouped by mounting type (through hole or panel mount) and solder termination
- Flange Feature: Board-side mounting flanges with 4-40 threaded holes determine mechanical compatibility
- Current and Voltage Ratings: Electrical performance requirements establish limits for current handling and voltage isolation
- Operating Temperature Range: Temperature specifications must meet or exceed application requirements
- Shell Material and Contact Finish: Tin-plated or nickel-plated steel shells with gold contact finish provide corrosion protection and signal integrity
- Compliance Standards: RoHS and REACH compliance status document regulatory alignment
Substitute parts are organized into functional groupings: through-hole vertical-mount equivalents from HARTING and TE Connectivity, and panel-mount alternatives from NorComp Inc. with both active and obsolete product lines.
Parameter Comparison
| Parameter | L77DAH15SU (Main) | 09642127210 (HARTING) | 09642127230 (HARTING) | 172-E15-213R001 (NorComp) | 172-E15-213R011 (NorComp) | 172-E15-213R021 (NorComp) | 172-E15-213R031 (NorComp) | 172-E15-213R911 (NorComp) | 2-338314-2 (TE Connectivity) |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Amphenol ICC | HARTING | HARTING | NorComp Inc. | NorComp Inc. | NorComp Inc. | NorComp Inc. | NorComp Inc. | TE Connectivity |
| Connector Type | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets |
| Number of Positions | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Shell Size, Connector Layout | 2 (DA, A) | 2 (DA, A) | 2 (DA, A) | 2 (DA, A) | 2 (DA, A) | 2 (DA, A) | 2 (DA, A) | 2 (DA, A) | 2 (DA, A) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Panel Mount, Through Hole | Panel Mount, Through Hole | Panel Mount, Through Hole | Panel Mount, Through Hole | Panel Mount, Through Hole | Through Hole |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Current Rating (Amps) | 7.5A | 7.5A | 7.5A | 5A | 5A | 5A | 5A | 5A | 6A |
| Voltage Rating | 300V | 100V | 100V | — | — | — | — | — | — |
| Operating Temperature Range | -55°C to 125°C | -20°C to 125°C | -20°C to 125°C | -50°C to 100°C | -50°C to 100°C | -50°C to 100°C | -50°C to 100°C | -50°C to 100°C | -55°C to 105°C |
| Shell Material, Finish | Steel, Tin Plated | Steel | Steel | Steel, Tin Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Tin Plated |
| Contact Finish | Gold (8.00µin) | — | — | Gold (Flash) | Gold (Flash) | Gold (Flash) | Gold (Flash) | Gold (Flash) | Gold |
| Contact Material | Brass | Copper Alloy | Copper Alloy | Brass | Brass | Brass | Brass | Brass | Phosphor Bronze |
| Flange Feature | Board Side (4-40) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Board Side (4-40) | Board Side (4-40) | Mating Side (4-40) | Board Side (4-40) + Mating Side, Female Screwlock (4-40) | Housing/Shell (M3) |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Packaging | Tray | Bulk | Bulk | Tray | Tray | Tray | Tray | Tray | Bulk |
Engineering Selection Recommendations
Direct Functional Equivalents (Through-Hole, Vertical Mount): HARTING 09642127210 and 09642127230 provide functionally equivalent through-hole mounting configurations. Both are Active products with ROHS3 compliance and UL94 V-0 flammability ratings. However, both HARTING parts are rated for 100V versus the L77DAH15SU's 300V rating, and both have a reduced operating temperature floor of -20°C compared to the -55°C minimum of the original part. Selection of these substitutes requires confirmation that circuit voltage and temperature requirements do not exceed their specified limits.
Panel-Mount Alternatives (NorComp 172-E Series): NorComp Inc. 172-E15-213R001, 172-E15-213R011, 172-E15-213R021, 172-E15-213R031, and 172-E15-213R911 are Active products offering panel-mount configurations with mounting flange variations. All five are ROHS3 compliant with UL94 V-0 ratings. These parts have a 5A current rating versus the 7.5A rating of the L77DAH15SU, and a reduced operating temperature range of -50°C to 100°C. Flange feature differences (Housing/Shell unthreaded, Board Side 4-40, Mating Side 4-40, or combined Board and Mating side configurations) determine specific mounting compatibility. Selection of these panel-mount alternatives requires verification that the panel mounting interface and reduced current capacity align with circuit design.
High-Performance Alternative (TE Connectivity AMPLIMITE HDP-20): TE Connectivity 2-338314-2 (AMPLIMITE HDP-20 series) provides a through-hole mounting option with a 6A current rating and -55°C to 105°C operating temperature range that closely approaches the original part's specifications. This Active product carries RoHS compliance and UL94 V-0 flammability rating. The use of Phosphor Bronze contacts and Board Lock features differentiates this part mechanically.
Obsolete Product Lines: NorComp Inc. 172-015-212R001 and 172-015-212R911 (172 M Series) are marked Obsolete and should be avoided for new designs. These parts are retained in the reference table for legacy system maintenance only and carry reduced current ratings (5A) and narrower operating temperature ranges (-50°C to 100°C).
Frequently Asked Questions (FAQ)
Q: Can I substitute a panel-mount D-Sub for the L77DAH15SU vertical through-hole connector? A: Panel-mount connectors such as the NorComp 172-E15 series require different PCB mounting hole patterns and edge-mounted installation. Substitution is mechanically possible only if the PCB layout accommodates panel-edge mounting and the application does not require the component to mount perpendicular to the board surface.
Q: What are the implications of using a 5A-rated substitute instead of the 7.5A-rated L77DAH15SU? A: A 5A current rating reduces the maximum allowable current through the connector by approximately 33%. Circuit current must be verified to remain below 5A continuous operation. Exceeding this rating creates risk of premature contact erosion and connector degradation.
Q: Why do some substitute parts list no voltage rating? A: Voltage rating omission in technical specifications indicates the manufacturer established voltage performance through dielectric material properties and connector geometry rather than explicit voltage classification. The NorComp 172-E series relies on Polyamide (PA6T) dielectric material properties. When voltage rating is not specified, contact the manufacturer for dielectric breakdown voltage data if circuit voltage requirements exceed 300V.
Q: Are HARTING 09642127210 and 09642127230 electrically interchangeable with the L77DAH15SU? A: Both HARTING parts share identical 15-position, 2-row D-Sub configuration, through-hole mounting, and solder termination. However, the HARTING parts are rated for 100V versus 300V and have a minimum operating temperature of -20°C versus -55°C. Substitution is limited to low-voltage, higher-temperature operating environments only.
Q: What is the difference between the various NorComp 172-E15 part numbers? A: The suffix numbers indicate flange mounting feature configurations. 172-E15-213R001 has unthreaded housing flange; 172-E15-213R011 adds Board Side 4-40 threaded holes; 172-E15-213R021 includes Board Side 4-40 mounting; 172-E15-213R031 features Mating Side 4-40 threaded holes; and 172-E15-213R911 includes both Board Side and Female Screwlock mating side 4-40 features for additional locking capability.
Q: Is packaging format (Bulk versus Tray) relevant to functional compatibility? A: Packaging format affects supply chain handling and storage but does not alter electrical or mechanical performance. HARTING 09642127210 and 09642127230 are supplied in Bulk packaging, while most NorComp and Amphenol parts are Tray-packaged. Selection between bulk and tray packaging is a procurement consideration independent of connector function.
Q: Can I use TE Connectivity 2-338314-2 as a direct replacement for the L77DAH15SU in high-reliability applications? A: TE Connectivity 2-338314-2 operates within comparable current (6A versus 7.5A) and temperature ranges (-55°C to 105°C versus -55°C to 125°C). Both are RoHS compliant and UL94 V-0 rated. The primary differences are Phosphor Bronze contacts versus Brass and the inclusion of Board Lock features. These differences do not preclude substitution but require mechanical verification that the Board Lock feature does not conflict with the mating plug design.
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