KFNB Series
Non-inductive Foil Strain Gages

Summary
The gage element is made of a special alloy which provides less magnetoresistant effect; also, the shape is designed to eliminate induction. Thus, the KFNB series foil strain gages allow the strain to be measured accurately under AC magnetic environments.
Click here for the [Strain Gages with Pre-attached Lead Cables]
Major Properties
Materials Resistive element | NiCr alloy foil |
---|---|
Materials Base | Polyimide |
Operating temperature in combination with major adhesives after curing (°C) | PC-600: -196 to 150ºC CC-33A: -196 to 120ºC |
Operating temperature in combination with major leadwire cables (°C) | Vinyl-coated normal-temperature low-noise 3-wire cable (L-13): -10 to 80ºC |
Self-temperature-compensation (°C) | 0 to 150ºC |
Applicable linear expansion coefficients (×10-6/℃) | 11, 16, 23 |
Strain limits at normal temp. (approx. %) | 1.0 |
Fatigue lives at normal temp. (times) | 1x104 (±1500μm/m) |
Relative images

Contents
When ordering, suffix the lead-wire cable code to the model number with a space in between.
E.g.
KFNB-5-350-C9-11 with a vinyl-coated normal-temperature low-noise 3-wire cable 5 m long pre-attached
→ KFNB-5-350-C9-11 J5M3
If no lead-wire cable code is suffixed, the gage is delivered with 2 polyester-coated copper wires 10 cm long each.
For details, please refer to the [Strain Gages with Pre-attached Lead Cables]
Products table
All display
KFNB 350Ω Uniaxial

10 gages/pkg
Model | Dimensions (mm) | |||
---|---|---|---|---|
Gage(Grid) | Base | |||
Length | Width | Length | Width | |
KFNB-5-350-C9-11 | 5 | 6.6 | 12 | 10 |
KFNB-5-350-C9-16 | 5 | 6.6 | 12 | 10 |
KFNB-5-350-C9-23 | 5 | 6.6 | 12 | 10 |
KFNB-2-350-C9-11 | 2 | 3.5 | 6 | 5 |
KFNB-2-350-C9-16 | 2 | 3.5 | 6 | 5 |
KFNB-2-350-C9-23 | 2 | 3.5 | 6 | 5 |
KFNB 350Ω Biaxial, 0°/90° plane arrangement

5 gages/pkg
Model | Dimensions (mm) | |||
---|---|---|---|---|
Gage(Grid) | Base | |||
Length | Width | Length | Width | |
KFNB-5-350-D20-11 | 5 | 6.6 | 22 | 12 |
KFNB-5-350-D20-16 | 5 | 6.6 | 22 | 12 |
KFNB-5-350-D20-23 | 5 | 6.6 | 22 | 12 |
KFNB-2-350-D20-11 | 2 | 3.5 | 11 | 6 |
KFNB-2-350-D20-16 | 2 | 3.5 | 11 | 6 |
KFNB-2-350-D20-23 | 2 | 3.5 | 11 | 6 |