DB25 Male Right Angle PCB Mount D-SUB Connector

Specifications

• Product Type: D-SUB Right Angle PCB Mount Plug / Male Header
  
• Gender: Male (Plug / Pin Contacts)
  
• Pin Count: 25 Pins (2-Row Standard DB25)
  
• Orientation: Right Angle (90° PCB Mount)
  
• Pitch (Pin Spacing): Standard D-SUB 2.77mm
  
• Termination Style: Through-Hole Solder Pins (Solder Tail)
  
• Board Retention: Integrated Board-Lock Snap-In Grounding Tabs
  
• Mounting Hardware: Dual Threaded Hex Standoff Nuts (M3 / #4-40 UNC)
  
• Current Rating: 3A Continuous per pin
  
• Rated Voltage: 250V AC/DC Max
  
• Contact Resistance: 15mΩ Max
  
• Insulation Resistance: 1000MΩ Min at 500V DC
  
• Dielectric Withstanding Voltage: 500V AC for 1 minute
  
• Operating Temperature: -55°C to +105°C
  
• Material: Nickel-plated Steel Shell, Black Glass-filled PBT Insulator (UL94V-0)
  
• Compatible Applications: Parallel Port (LPT), CNC Breakout Boards, Industrial Controllers

Project Evolution

Unlock New Capabilities

• Past Projects (Prerequisites): If you've already built projects using basic microcontroller UART modules, jumper cables, or panel-mounted DB9 connectors, you're familiar with basic point-to-point data communication. Upgrading to the DB25 male right-angle PCB mount D-SUB connector is the natural next step for routing multi-channel signals—such as legacy IEEE 1284 parallel printer ports, multi-axis CNC controller breakout boards, or industrial PLC interface cards—directly onto printed circuit boards without cable harness clutter.
• Feature Upgrade (What This Unlocks): This DB25 male right-angle connector unlocks compact, board-mounted 90-degree D-SUB interconnects for 25-channel signal lines. Featuring solid male contact pins, integrated snap-in metal board locks, and dual threaded M3 hex standoff nuts, it enables clean right-angle enclosure cutouts while transferring mechanical plugging stress directly into the PCB ground plane.

Effort Level & Minimum Hardware

Effort Level: Intermediate 

Minimum hardware to get started:

• Custom PCB with 2-Row 2.77mm Pitch Through-Hole Footprint — required to insert the connector pins and board-lock tabs for proper 90-degree board mounting.
  
• Soldering Station & Solder — required to form solid electrical solder joints on all 25 through-hole pins and secure the grounding board locks.
  
• DB25 Female Cable / Mating Harness — necessary to plug into this male board header to carry parallel port or CNC control signals to external devices.

Virtual Technician & Pinout Guide

⚠️ Safety Warnings:

• Solder Thermal Rating: Limit soldering iron tip temperature to 260°C maximum for under 5 seconds per pin during hand or wave soldering to prevent melting the black PBT insulator.
  
• Board Lock Grounding: Solder both metal board-lock snap tabs to the PCB ground plane to ensure low-impedance ground shielding and prevent mechanical strain on signal solder joints when mating cables.
  
• Pin Alignment Check: Verify all 25 right-angle pins are fully seated and aligned square in PCB through-holes before applying solder; forcing a misaligned connector can bend delicate pins inside the housing.

Package Includes: 

1× DB25 Male Right Angle PCB Mount D-SUB Connector

Frequently Asked Questions

1. What is the pin orientation and mounting style of this DB25 male connector?
   It features a 90-degree right-angle through-hole PCB mount design with solid male contacts, allowing horizontal D-SUB port placement flush against board edges.
2. Is this DB25 male right-angle header compatible with standard female DB25 parallel port cables?
   Yes, it features standard 2-row 2.77mm DB25 male pin spacing that securely mates with standard 25-pin female DB25 cable sockets, LPT printer cables, and CNC control looms.
3. Can I use this right-angle DB25 connector on standard 1.6mm thick PCBs? Yes, the through-hole solder pins and snap-in metal board locks are optimized for standard 1.6mm double-sided FR4 printed circuit boards.
4. What is the continuous current rating per male contact pin?
   Each solid male contact pin is rated for up to 3A AC/DC continuous current.
5. What is the maximum operating voltage rating across adjacent pins?
   The connector is rated for an operating voltage of up to 250V AC/DC Max with a dielectric withstanding voltage of 500V AC for 1 minute.
6. How do the metal board-lock tabs attach to the printed circuit board?
   The dual metal board-lock tabs snap into PCB mounting holes to provide mechanical strain relief and should be soldered directly to the ground plane.
7. Are the M3 hex standoff nuts removable or fixed onto the front flange? The dual threaded M3 hex standoff nuts are pre-installed into the metal shell flange to securely lock mating cable jackscrews.
8. Does this DB25 male right-angle PCB connector require any software library code?
   No, this is a passive physical connector component and requires no software drivers, microcode, or microcontroller libraries.
9. Can this connector carry differential RS422/RS485 or high-speed CNC step/dir signals?
   Yes, as a passive physical interface, it carries low-voltage digital signals, parallel port data streams, and CNC motion channels reliably.
10. How do I prevent the plastic isolator from melting during through-hole soldering?
    Maintain soldering iron tip temperature at 260°C maximum for under 5 seconds per pin during hand soldering.
11. Why are mating cables failing to lock into the front D-SUB shell?
    Check that your mating cable uses standard M3 or #4-40 UNC threaded jackscrews that match the pre-installed flange standoff nuts.
12. What should I do if adjacent PCB through-hole pins bridge with solder? Apply flux paste and use desoldering braid (solder wick) to remove excess solder between the staggered 2.77mm through-hole pads.
13. Are these DB25 male right-angle PCB connectors quality inspected at Probots?
    Yes, every batch undergoes visual QC inspection at Probots in Bangalore to verify straight male pins, intact black PBT housings, and secure board locks.
14. Is bulk/tiered pricing available for machinery OEMs and contract electronics manufacturers?
    Yes, Probots offers volume discounts and bulk dispatch for industrial automation OEMs, CNC controller builders, and PCB assembly houses across India.
15. Does Probots stock matching DB25 female right-angle connectors and PCB breakout boards?
    Yes, we carry matching female DB25 right-angle PCB connectors, DB25 breakout boards with enclosures, and DB25 cable assemblies in our Bangalore store.