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0 Ω Jumper 0402 - Royalohm CQ02WGF0000TCE

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0402 Automotive Thick Film Jumper · <50 mΩ · 1 A rated

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John Lauer Footprint per the manufacturer's land pattern (ipc-fallback), derived viewers/lbr/hero rebuilt, lbr-hover on both viewe… e38ca10 22d ago

0 Ω Jumper 0402 - Royalohm CQ02WGF0000TCE

Royalohm CQ02WGF0000TCE: 0402 Automotive Thick Film Jumper, <50 mΩ, 1 A rated. An Adom Basic Part: Adom keeps it on reels for its pick-and-place line, so boards built with it draw on Adom stock.

Key specs

Spec Datasheet
0402 automotive thick film chip resistor (CQ02), 1.00 × 0.50 mm body, 0.35 mm thick, alumina substrate; Ni/Cr inner, Ni-barrier, lead-free Sn outer termination p.1
Automotive grade: the doc states it “complies with the relevant provisions of AEC-Q200”, and its qualification rows reference AEC-Q200 TEST 1/7/8/15/18/21 p.1, p.2
0 Ω jumper (ordering code 0000), resistance <50 mΩ, rated current 1 A, max overload current 2 A p.1, p.2
Rated 1/16 W (62.5 mW) at 70 °C, derating linearly to zero at +155 °C p.1
Max working voltage 50 V; max overload voltage 100 V; dielectric withstanding voltage 100 V p.1
Anti-sulfurized construction, tested H2S 3-5 ppm, 50 °C, 91-93 %RH, 1,000 h: ΔR at ±1 % within ±(1.0 % + 0.1 Ω) p.1, p.2
Operational life 1,000 h at 125 °C (AEC-Q200 TEST 8): ΔR within ±(1.0 % + 0.1 Ω); biased humidity 1,000 h 85 °C/85 %RH: within ±(1.0 % + 0.05 Ω) p.2
Operating temperature −55 to +155 °C; RoHS compliant, suitable for reflow & wave soldering p.1
Suffix TCE: tape & reel, 10,000 pcs, lead-free (standard) p.2

Notes for designers

CQ02WGF0000TCE is the 0 Ω jumper of Royalohm’s (UNI-ROYAL) CQ automotive thick film series in the 0402 size (CQ02), a 1.00 × 0.50 mm body 0.35 mm thick. (p.1) It is the automotive (CQ) series: the doc claims compliance with the relevant provisions of AEC-Q200 and backs it with AEC-Q200-referenced test rows, plus an anti-sulfurized construction proven over 1,000 h in 3-5 ppm H2S. (p.1, p.2) The TCE suffix means tape & reel, 10,000 pcs, lead-free. (p.2)

Design against the current limits, not a resistance: the jumper is specified at <50 mΩ with a rated current of 1 A and a max overload current of 2 A. (p.1) The doc defines no TCR for the jumper, its TCR brackets start at 1 Ω. (p.2) Ambient limits match the rest of the series: −55 to +155 °C. (p.1)

Footprint

The datasheet has no land pattern, so the pads are the IPC-7351 nominal pattern (KiCad's standard Resistor_SMD:R_0402_1005Metric), replacing pads that were off it by up to 0.14 mm.

Source: IPC-7351 nominal (no land pattern in the datasheet): KiCad 10 Resistor_SMD:R_0402_1005Metric pads.

mm Datasheet KiCad standard (R_0402_1005Metric) Previous This page
Pad length (along the part) none given 0.54 0.6 0.54
Pad width none given 0.64 0.5 0.64
Gap between pads none given 0.48 0.4 0.48
Centre to centre none given 1.02 1 1.02
Overall none given 1.56 1.6 1.56
Corner radius none given 0.135 (ratio 0.25) 0.125 (ratio 0.25) 0.1 (ratio 0.1852)

Corners: KiCad roundrects with the radius held to 0.25 x the smaller pad side and no more than 0.1 mm (IPC-7351C favours rounded corners for paste release); copper area within 2.48 % of a square-cornered pad.

Chip outline

The part's 3D outline in the standard pose (pad 1 toward the viewer), drawn from the STEP by Adom's OpenCascade service; the part number sits where the laser-etched mark is on the 3D model and reads the same way.

Symbol options

The default symbol, CQ02WGF0000TCE.kicad_sym (the one in the Symbol & Footprint panel), is the plain standard symbol. CQ02WGF0000TCE-outline.kicad_sym is the same symbol with the part's 3D chip outline drawn beside it, its part number placed and reading as on the 3D model.

Ordering
MPN CQ02WGF0000TCE
Manufacturer Royalohm
Adom stock Adom Basic Part, stocked on reels for Adom's pick-and-place line; reel counts on pnp-inventory
Other sources adom-parts-search compares Mouser, DigiKey and JLCPCB

Downloads

File What it is
CQ02WGF0000TCE.kicad_sym KiCad symbol (standard symbol, the page default)
CQ02WGF0000TCE-outline.kicad_sym KiCad symbol with the 3D chip outline
CQ02WGF0000TCE.kicad_mod KiCad footprint (IPC-7351 nominal)
CQ02WGF0000TCE.step 3D STEP with the part number laser-etched (default)
CQ02WGF0000TCE-unetched.step 3D STEP, bare (no mark)
CQ02WGF0000TCE.glb 3D GLB of the etched model (board use)
CQ02WGF0000TCE-unetched.glb 3D GLB, bare
CQ02WGF0000TCE.lbr Fusion 360 / EAGLE library
CQ02WGF0000TCE.adom-lbr.json adom-lbr part (converts to Altium, KiCad, EAGLE)
CQ02WGF0000TCE-datasheet.pdf Datasheet (release asset)

Provenance

  • Datasheet: Automotive Thick Film Chip Resistors - CQ, revised No printed revision on either page; footers carry only full-catalog page numbers 52/53. PDF file metadata (NOT printed in doc): Adobe InDesign CC 14.0, CreationDate 2019-03-21, ModDate 2022-05-02, reported as metadata only, not used as a revision., UNI-ROYAL (厚聲集團 Hou Sheng group) / ROYALOHM, www.royalohm.com (both logos on both page headers). Manufacturer copy. md5 c0a124b7923e77ea3cfb7e70e0d618d4
  • Footprint: IPC-7351 nominal (no land pattern in the datasheet): KiCad 10 Resistor_SMD:R_0402_1005Metric pads. Pads set to the IPC-7351 nominal pattern on 2026-10-03.
  • 3D model and symbol: unchanged by the footprint pass; the etched STEP adds a flat virtual part-number mark (an identification aid, not the maker's marking).

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