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General-purpose Foil Strain Gages

The KFRB series foil strain gages are durable and easy-to-use high-grade strain gages. The gage element is sandwiched between heat-resistant polyimide base and cover, thereby letting it exhibit high performance in a wide temperature range.

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Technical Information

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-36: -30 to 100ºC CC-33A: -196 to 120ºC EP-340: -55 to 150ºC CC-35: -30 to 120ºC
Operating temperature in combination with major leadwire cables (°C)	Polyester-coated copper wire: -196 to 150ºC Vinyl-coated flat cable (L-6, L-7): -10 to 80ºC Mid-temperature cable (L-11, L-12): -100 to 150ºC
Self-temperature-compensation (°C)	0 to 150ºC
Applicable linear expansion coefficients (×10^-6/℃)	11, 16, 23
Strain limits at normal temp. (approx. %)	2.2 (Strain measurement at mid temperature, for transducers)
Fatigue lives at normal temp. (times)	1x10^6 (±1500μm/m) (Strain measurement at mid temperature, for transducers)

Contents

When ordering, suffix the lead-wire cable code to the model number with a space in between.
(Except for D9 and D19)

KFRB-02N-120-C1-11 With 2 polyester-coated copper wires 10 cm long
→ KFRB-02N-120-C1-11 N10C2

KFRB-05-120-D25-11 With a vinyl-coated ?at 3-wire cable 5 m long
→ KFRB-05-120-D25-11 L5M3S

If no lead-wire cable code is suffixed, the gage is delivered with gage leads only.
(Silver-covered copper wires 25 mm long)