19 Pin HDMI Male Plug — Straddle Mount PCB Connector for HDMI Dongles & Adapters

The HDMI-AM-1904 is a 19 pin HDMI male plug mounted directly on the PCB edge in a straddle mount configuration. Most PCB-mounted HDMI interfaces use a female receptacle that accepts a separate HDMI cable. This connector takes the opposite approach: the male plug straddles the board so the PCB itself becomes part of the plug’s mechanical structure, allowing the board to plug directly into another device’s HDMI port without a cable in between.

The 19-pin contact array follows the standard HDMI Type A pinout, and all contacts are gold-plated for stable, low-resistance signal transfer across TMDS data and clock pairs, DDC, CEC, hot-plug detect and the 5V/ground supply pins. The connector is designed for a 1.6mm PCB thickness, which matches standard PCB stack-ups, and ships on reel or tray packaging for automated SMT placement lines.

Because the PCB forms part of the plug, this HDMI male plug PCB mount solution is particularly useful in dongles, adapters, and small format-conversion boards where an internal HDMI cable would add cost, thickness, and assembly steps. It is also used in test fixtures and breakout boards that need a direct male HDMI interface.

Manufactured in an ISO 9001:2015 certified facility, this 19 pin HDMI plug connector is fully compliant with RoHS 3 and REACH regulations.

A straddle mount HDMI connector is a specialized PCB connector that clamps onto the edge of the board rather than sitting entirely on the top surface. In this configuration, the connector shell wraps around the PCB edge, and the board thickness becomes part of the mechanical structure of the mated plug. This allows the PCB itself to be inserted into a standard HDMI female port on another device, eliminating the need for an HDMI cable and separate receptacle.

Straddle mount connectors are typically used when the finished product is a small board that plugs directly into a TV, monitor, or other HDMI host — for example, streaming dongles, format converters, and compact test adapters. The connector must match the board thickness, and the PCB edge must be prepared with the correct cutout and plating for reliable soldering and mechanical retention.

For the HDMI-AM-1904, the specified board thickness is 1.6mm, which is the most common PCB stack-up for consumer electronics. The connector shell is designed to grip the board edge and provide mechanical support during repeated mating cycles, while the contacts are soldered to pads on the board surface.

When to Use a Straddle Mount HDMI Connector

• When the PCB must plug directly into a host HDMI port without a cable.
• When the product thickness is critical and a cable assembly would add bulk.
• When reducing BOM cost by eliminating a separate receptacle and cable is a priority.
• When the connector will experience repeated mating cycles and requires robust mechanical support.

For standard PCB-mounted HDMI receptacles that accept a cable, see Vistar’s HDMI connector product range.

An HDMI male plug PCB mount connector is soldered directly onto the printed circuit board and provides a male HDMI interface at the board edge. Unlike a cable-mounted plug, which is crimped or soldered to a wire, the PCB-mount version uses the board itself as the substrate for the connector contacts, and the finished board assembly functions as the plug.

This approach is used when the product is a small board that must be inserted into a host device’s HDMI port. The connector must be carefully positioned so that the board edge aligns with the host port opening, and the contacts must be soldered to the correct pads to ensure signal integrity across all 19 pins.

The HDMI-AM-1904 is designed for a 1.6mm board thickness, which is the standard for most rigid PCBs. The straddle mount shell requires a specific board edge profile, so the PCB manufacturer should be provided with the connector’s recommended cutout drawing. This ensures that the shell clamps the board correctly and the contacts align with the solder pads.

PCB Design Considerations

• Confirm the board thickness matches the connector specification (1.6mm).
• Follow the recommended edge cutout drawing from the connector manufacturer.
• Route TMDS differential pairs with controlled impedance and matched lengths.
• Keep high-speed traces away from DDC, CEC, and power lines to reduce crosstalk.
• Provide adequate ground reference planes beneath the high-speed signal traces.
• Verify the connector placement relative to the enclosure opening before PCB release.

For a broader comparison of HDMI connector mounting styles, see Vistar’s HDMI 19 Pin Connector Complete Guide.

A 19 pin HDMI plug connector carries the standard HDMI Type A signal set: three TMDS data pairs, one TMDS clock pair, the Display Data Channel (DDC) for EDID communication, the Consumer Electronics Control (CEC) line, Hot Plug Detect (HPD), and the +5V power and ground pins. This is the same interface used by standard HDMI cables, so a PCB-mounted male plug is electrically compatible with any HDMI host port.

In the HDMI-AM-1904, all 19 contacts are gold-plated to maintain low and stable contact resistance across the differential pairs. Gold plating is particularly important for high-speed signals because it resists oxidation and corrosion, which would otherwise increase contact resistance and degrade signal integrity over time.

The 19-pin configuration follows the standard HDMI Type A pinout. However, because the connector is mounted on a PCB edge, the physical orientation of the contacts relative to the board must be confirmed from the product drawing. Straddle mount connectors can be oriented in different ways, and the pin order on the PCB may not match the pin order of a standard cable-mounted plug.

Standard HDMI Type A Pin Assignment

Always confirm the physical pin numbering against the product drawing before PCB layout, since straddle mount parts can mirror the pin order depending on orientation.

An HDMI Type A male plug is the standard full-size HDMI connector found on almost all consumer electronics: TVs, monitors, projectors, game consoles, and set-top boxes. The Type A connector uses a 19-pin interface in a compact rectangular shell, and it is the format most commonly used for HDMI video and audio transmission.

Signal integrity in an HDMI connection depends on several factors: the quality of the contact plating, the impedance control of the PCB traces, the shielding of the connector shell, and the physical alignment of the plug with the host port. The HDMI-AM-1904 addresses these factors with gold-plated contacts, a metal shell for EMI shielding, and a straddle mount design that provides mechanical support for the board edge.

For high-speed HDMI signals, contact resistance must remain low and stable across the mated interface. Gold plating provides this stability, while the nickel underplate prevents migration between the gold layer and the base metal. The connector shell, when properly grounded to the PCB, also helps control EMI radiation from the high-speed data lines.

PCB Layout for HDMI Signal Integrity

• TMDS pairs: Route with 100Ω ±10% differential impedance, matched lengths within 5 mil.
• Ground reference: Provide a continuous ground plane beneath the high-speed traces.
• Trace spacing: Maintain at least 8 mil spacing between differential pairs and other signals.
• Via usage: Minimize vias in high-speed paths; use ground stitching vias near layer transitions.
• DDC and CEC: Route separately from TMDS pairs to avoid coupling.
• ESD protection: Add low-capacitance ESD protection on exposed HDMI pins if required by the application.

For additional background on HDMI signal integrity and PCB design, refer to the official HDMI Specification published by HDMI Licensing Administrator, Inc.

Below are the published specifications for the 19 pin HDMI plug connector HDMI-AM-1904. Confirm all values against the latest Vistar engineering drawing before production release.

Confirm all ratings and dimensions against the latest Vistar engineering drawing before PCB layout or mass-production approval.

What Is a 19 Pin HDMI Male Plug?

A 19 pin HDMI male plug is a male HDMI Type A connector with 19 contacts, designed to insert into a standard HDMI female port. The HDMI-AM-1904 is a PCB-mount version that uses a straddle mount configuration, where the connector clamps onto the edge of the circuit board rather than sitting on the board surface. This allows the PCB itself to act as the plug, eliminating the need for an HDMI cable and a separate female receptacle.

The 19-pin interface carries the standard HDMI signal set: three TMDS data pairs, one TMDS clock pair, DDC (for EDID communication), CEC, Hot Plug Detect, and +5V power and ground. All contacts are gold-plated to maintain low and stable contact resistance across the high-speed differential pairs.

Straddle Mount HDMI Connector — How It Works

A straddle mount HDMI connector is designed to be soldered onto the edge of a PCB. The connector shell wraps around the board edge, and the contacts are soldered to pads on the board surface. The board thickness becomes part of the mechanical structure of the mated plug, so the finished PCB assembly can be inserted directly into a host HDMI port.

This configuration is used when the product is a small board that plugs directly into a TV, monitor, or other HDMI host. Streaming dongles, format converters, and compact test adapters are common examples. The connector must match the board thickness, and the PCB edge must be prepared with the correct cutout and plating for reliable soldering and mechanical retention. The HDMI-AM-1904 is designed for a 1.6mm board thickness, which is the standard for most rigid PCBs.

HDMI Male Plug PCB Mount — Design Considerations

An HDMI male plug PCB mount connector requires careful PCB layout to ensure signal integrity and mechanical reliability. The TMDS differential pairs should be routed with controlled impedance (typically 100Ω differential) and matched trace lengths. A continuous ground reference plane should be provided beneath the high-speed traces, and the DDC, CEC, and power lines should be routed separately to reduce coupling.

The connector shell should be grounded to the PCB to provide EMI shielding. The board edge cutout must match the connector’s recommended profile, and the contact pads must be positioned to align with the connector terminals. Because the connector is mounted on the board edge, the mechanical tolerance of the PCB outline and the connector placement directly affect how well the plug fits into the host port.

For additional background on HDMI signal integrity and PCB design, refer to the official HDMI Specification published by HDMI Licensing Administrator, Inc.

19 Pin HDMI Plug Connector — Standard Type A Interface

A 19 pin HDMI plug connector carries the full HDMI Type A signal set, which is the same interface used by standard HDMI cables. This means a PCB-mounted male plug is electrically compatible with any HDMI host port, as long as the PCB layout and connector orientation follow the standard pinout.

However, because the connector is mounted on a PCB edge, the physical orientation of the contacts relative to the board must be confirmed from the product drawing. Straddle mount connectors can be oriented in different ways, and the pin order on the PCB may not match the pin order of a standard cable-mounted plug. Always confirm the terminal assignment against the product drawing before PCB layout.

HDMI Type A Male Plug — Contact Plating and Signal Integrity

An HDMI Type A male plug is the standard full-size HDMI connector found on almost all consumer electronics. Signal integrity in an HDMI connection depends on several factors: contact plating quality, impedance control of the PCB traces, shielding of the connector shell, and physical alignment of the plug with the host port.

The HDMI-AM-1904 addresses these factors with gold-plated contacts, a metal shell for EMI shielding, and a straddle mount design that provides mechanical support for the board edge. Gold plating provides stable contact resistance, while the nickel underplate prevents migration between the gold layer and the base metal. The connector shell, when properly grounded to the PCB, helps control EMI radiation from the high-speed data lines.

Applications Across Industries

This 19 pin HDMI male plug is found across HDMI dongles and streaming sticks, compact signal converters, test and diagnostic fixtures, display adapters, broadcast and AV test equipment, and OEM embedded boards. Its straddle mount configuration, gold-plated contacts, and 5,000-cycle life make it suitable for products where a compact, cable-free HDMI interface is required.

Why Choose Vistar as Your HDMI Connector Supplier

Vistar Electronics is a trusted manufacturer and supplier of HDMI connectors serving customers in consumer electronics, professional AV, and embedded systems. Our HDMI connector lineup includes receptacles, plugs, straddle mount, SMT, and through-hole configurations with various pin counts and mounting styles.

With ISO 9001:2015 certification and a commitment to continuous improvement, Vistar is your reliable partner for high-quality interconnect solutions. For more technical resources, including PCB layout guidelines and connector selection guides, visit our technical blog or contact our engineering support team directly.

Explore our full range of HDMI connectors and related content:

• HDMI Connectors — Full Product Collection
• HDMI 19 Pin Connector Complete Guide
• 19 Pin PCB Mount HDMI Connector — DIP
• 19 Pin HDMI SMT Connector

For HDMI connector qualification and international electronics production, the following official references provide useful background information:

• HDMI Specification — HDMI Licensing Administrator, Inc.
• ISO 9001:2015 — Quality Management Systems
• European Commission — RoHS Directive
• European Chemicals Agency — REACH

These references are provided for engineering and compliance background. The applicable requirements for the finished equipment should be determined according to the product category, destination market, and customer specifications.