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Tag-Connect, LLC

Tag-Connect TC2050-IDC-NL-050-ALL-20 No-Legs Cable

Tag-Connect TC2050-IDC-NL-050-ALL-20 No-Legs Cable

10-pin TC2050 Plug-of-Nails™ to 20-pin 0.05″ micro-IDC for ULINK2/Pro.

SKU: TC2050-IDC-NL-050-ALL-20

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Key Features

No-Legs TC2050 Target Connector
20-Pin 0.05″ Micro-IDC Tool End
Space-Saving, Zero BOM Footprint
Robust Spring-Pin Contacts
Consistent 10-Pin TC2050 Pinout
Accessory Ecosystem For Retention
Compatible With ULINK2/Pro Workflows

Overview

Tag-Connect TC2050-IDC-NL-050-ALL-20 is a professional programming/debug cable that mates a 10-pin TC2050 “No-Legs” Plug-of-Nails™ connector on the target PCB to a 20-pin, 0.05″ (1.27 mm) micro-IDC on the tool side. It is designed for debuggers that use the Cortex-20/MIPI-20 micro-header, such as Keil ULINK2 and ULINK Pro.

The No-Legs (NL) tip minimises PCB footprint and eliminates a mating header, reducing BOM cost and board height. For hands-free sessions, use a retention accessory such as the TC2050-CLIP. Where a 10-pin micro-IDC is preferred, consider the related TC2050-IDC-NL-050-ALL. If your tool presents a 20-pin 0.1″ header, the TC2050-ARM2010 adapter routes ARM-20 to the same TC2050 target footprint.

This cable suits production programming—where short, repeatable connections matter—and development debug when combined with a clip or fixture. It retains the robust spring-pin contact system and keyed geometry expected of Tag-Connect, helping ensure reliable engagement with correctly implemented footprints. Engineers working on ARM-based designs who want to conserve space, remove board-mounted headers, and keep a consistent 10-pin TC2050 target can standardise on this part across projects.

For 6-pin Cortex-SWD targets with a 20-pin tool end, see TC2030-CTX-20.

Tiny Footprint, Zero BOM

Remove board-mounted headers to save cost, height, and space while keeping a proven, reliable 10-pin programming/debug interface.

Direct Cortex-20 Connection

Plug straight into 0.05″ micro-headers on ULINK2/Pro, avoiding extra adapters when your debug pod already exposes MIPI-20.

Production-Ready Reliability

Spring-pin contacts, alignment features, and optional clip/fixtures support repeatable programming on the line and stable bench debugging.

The TC2050-IDC-NL-050-ALL-20 programming cable has an 0.050″ pitch ribbon connector suitable for ULINK2 and similar debuggers that use the Samtec FTSH-110-01 style micro-header. This uses the "No Legs" version of the TC2050 connector, ideally suited to production where short board connection times are required but also suitable for development.

The pin connections are 1-1 and pins 1-10 are connected, pins 11-20 are not connected in the cable.

Please refer to TC2050-IDC-NL datasheet for the PCB footprint information.

Frequently Asked Questions

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  • Does the cable support trace signals?

    Trace typically uses additional pins. For ULINK Pro ETM, consider <a href="">TC2030-CTX-ETM</a> which adds trace via a TC2050 tail.

  • How does this compare with expensive bed-of-nails fixtures?

    It offers a simple, lower-complexity path for bring-up and production flashing; fixtures remain for high-volume automated test when needed.

  • Is there a legged version for snap-in retention?

    Yes: TC2050-IDC-050-ALL-20 (legged) provides mechanical hold-down on the PCB.

  • What if my debugger only has a 20-pin 0.1″ header?

    Use TC2050-ARM2010 (ARM-20 to TC2050) with a TC2050-IDC/-IDC-NL cable.

  • Can I use it for production programming?

    Yes. The pogo-pin system and alignment holes support fast, repeatable engagements. Add a TC2050-CLIP or fixture for throughput.

  • I only use SWD—should I pick a 6-pin solution?

    Many do. Take a look at the TC2030-CTX-20 to pair a 6-pin Tag-Connect with a 20-pin tool end.

  • Is there a version with a 10-pin micro-IDC (FTSH-105) tool end?

    Yes: the TC2050-IDC-NL-050-ALL uses a 10-pin 0.05″ micro-IDC for tools with FTSH-105-01 headers.

  • How do I keep the No-Legs tip attached during debug?

    Use the TC2050-CLIP for hands-free retention, or a suitable fixture where continuous connection is required.

  • What debuggers does this cable suit?

    t mates with debuggers exposing a 20-pin 0.05″ Cortex-20/MIPI-20 micro-header (e.g., ULINK2/Pro). For 0.1″ ARM-20 tools, use the TC2050-ARM2010 adapter.

Customer Reviews

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I
Ian Benton
continued. . .

But it has a 0.05" pitch ribbon cable connector, not a 0.1" pitch, and I am not free to use the pins how I like because I am constrained by the connections of the device it plugs into.

The Tag Connect cable footprint is much smaller than an equivalent 0.1' pitch header. You are free to allocate pins as you choose; they do not need to mirror the same pin numbers as a previous design as the connectors are quite different. If you do need to maintain the same pin numbers then you might have to rearrange pins as you suggest. Most of our customers are designing the Tag Connect footprint into a completely new PCB design so this is not an issue.

John Legg