Plugs into an J-Link to convert the 100mil 20-pin header into a 100mil and 50mil 10-pin headers with standard SWD pinout. A reset switch and some test loops are also provided.

Because of the depth of the header on the J-Link relative to the housing and the limited selection of heights of female SMT headers, I recommend using a piece of ~1/16" or 2mm thick craft foam as a spacer between the bottom of the board and the J-Link. It can be cut to the outline of this board, with a rectangle cutout for the header on the bottom, and glued or double-stick-taped to the bottom of the PCB.

#   Manufacturer    MFR PN  Quantity    Qty Ext'd   Value   Description Designator
------------------------------------------------------------------------------------
1   Kingbright  APTD1608CGCK    1   100 Green   0603 LED Green 60° 230mcd 570nm    D1
2   3M Interconnect Solutions   966210-2000-AR=PR   2   200 966210      J1, J2
3   Amphenol FCI    20021521-00010T1LF  1   100         J3
4   3M Interconnect Solutions   N2510-6V0C-RB-WD    1   100         J4
5   KOA Speer   RK73H1JTTD1000F 1   100 100 100Ω 100mW 1% 100 PPM/°C 0603 Thick Film Resistor R1
6   KOA Speer   RK73H1JTTD2201F 1   100 2k2 2k2Ω 100mW 1% 100 PPM/°C 0603 Thick Film Resistor R2
7   Wurth Electronik    430 182 095 816 1   100 430 182 095 816     SW1
8   Keystone Electronics Corp   5015    6   600 5015    SMT Micro Miniature test point  TP1, TP2, TP3, TP4, TP5, TP6