68 kΩ Resistor 0402 - Bourns CR0402-FX-6802GLF

Bourns CR0402-FX-6802GLF: 0402 Thick Film Resistor, 68 kΩ ±1%, 1/16 W. 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

Notes for designers

The datasheet’s 1 A current rating applies to the zero-ohm jumper, not this 68 kΩ resistor. For this value, enforce both power and voltage limits. Here the 50 V maximum working voltage is reached before the power rating: 50 V drives about 735 µA and dissipates 36.8 mW, under the 62.5 mW rating, before resistance tolerance and design margin. Reduce allowable power above 70 °C. Bourns CR-series datasheet, electrical characteristics.

CR0402-FX-6802GLF is the 68 kΩ member of Bourns’ CR series of general-purpose thick film chip resistors, in the 0402 size, a 1.00 × 0.50 mm body just 0.32 mm thick, built on a three-layer termination with a nickel barrier under the tin plating. (p.2, p.1) Tolerance is ±1 %, and like every CR0402 the top carries no marking, the value travels in the ordering code (6802 → 68 kΩ, 3 significant digits + 2 zeros), not on the part. (p.1, p.5, p.6)

Design against 1/16 W at 70 °C ambient, the rating derates linearly above that and reaches zero at +155 °C (p.1, p.3), and keep continuous voltage at or below 50 V; the 100 V figure is an overload limit, not a working one. (p.1) TCR is ±100 ppm/°C across the 10 Ω-1 MΩ ±1 % band this value sits in. (p.1) A 2.5× rated-voltage, 5-second overload is allowed to shift the value by up to ±(2 % + 0.1 Ω), worth knowing if a transient can land across it. (p.4)

3D model provenance

Bourns publishes no 3D model for the CR series, so the STEP is AI-generated from the Bourns CR Series datasheet (REV. 03/21, p.2 Product Dimensions, CR0402 row) with OpenCascade: L 1.00, W 0.50, T 0.32 mm, top terminal C 0.20 mm, bottom terminal D 0.25 mm, as a white alumina body with a black overcoat between tin-plated wrap-around terminals. The marked STEP carries the part number from the mark planner; CR0402-FX-6802GLF-unetched.step is the same model without it. The previous model (KiCad's generic R_0402_1005Metric) is kept in provenance/, with the builder in provenance/tools/.

Footprint

Redrawn from the datasheet land pattern (the previous pads were off by up to 0.1 mm).

Source: Land pattern from Bourns CR Series Thick Film Chip Resistors datasheet, REV. 03/21, p.2 (Recommended Pad Layout).

Why the pads line up flush with the chip's terminals

Seen from underneath, each pad's inner edge sits exactly on the inner edge of the chip's bottom terminal, the pad is exactly as wide as the chip, and the copper reaches past the chip only at its two outer ends. That is the intended fit, and it follows the land-pattern standard and the Bourns datasheet:

• IPC-7351B solder-joint goals for chip resistors and capacitors smaller than 0603 (1608 metric), nominal density: toe 0.20 mm, heel 0.00 mm, side 0.00 mm (summarised on the PCB Libraries forum). The toe is the copper beyond the terminal's outer end, where the solder fillet forms and is inspected; heel and side are the copper inside and beside the terminal, and their nominal goal is zero.
• Bourns CR Series datasheet (REV. 03/21, p.2): CR0402 body L 1.00 +/- 0.05, W 0.50 +/- 0.05, T 0.32 +/- 0.05, bottom terminal D 0.25 +/- 0.10 mm; Recommended Pad Layout a (gap) 0.50 to 0.60, b (overall) 1.40 to 1.60, c (pad width) 0.40 to 0.60 mm.

This footprint uses a 0.50, b 1.50, c 0.50 mm, all inside Bourns' table:

In the 3D viewer the part is seated at z = 0, the top of the copper. The pad outlines and the copper fill are drawn 0.02 mm below it so they never flicker against the part, which can read as a hairline gap when you zoom in close.

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, CR0402-FX-6802GLF.kicad_sym (the one in the Symbol & Footprint panel), is the plain standard symbol. CR0402-FX-6802GLF-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

Downloads

Provenance

• Datasheet: CR Series - Thick Film Chip Resistors, REV. 03/21 revised REV. 03/21 (March 2021, month/year only, no day printed), Bourns, Inc. Manufacturer copy. md5 bd7ef760deb65299950312783d29622d
• Footprint: Land pattern from Bourns CR Series Thick Film Chip Resistors datasheet, REV. 03/21, p.2 (Recommended Pad Layout). Pads redrawn 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).
• Earlier passes: provenance/ and CHANGES.md.

More

• Datasheet pages: the 9 datasheet pages as images.
• Assembly animation: the part dropping onto its pads, and Adom's pick-and-place picking it from tape.