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RF (Rosette)

Due to its tiny size, the strain gauge rosette RF9 in miniature is especially suitable for circuit boards and very small components.

RF (Rosette)

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RF9 Strain Gauge Rosette for Printed Circuit Board Testing and Small Surfaces

Thanks to its three stacked measuring grids, the smallest version of the RF9 miniature SG rosette is only 5 mm in size. It enables biaxial stress states with unknown principal stress directions to be determined in the most confined of spaces, owing to its small diameter. The SG rosette is, therefore, particularly suitable for measurements on electric circuit boards or especially small components.

The following variants are available:

Pre-wired with thin, enameled copper wires (d=0.2 mm) and a particularly small measuring grid
Pre-wired with thin, enameled copper wires and a 1 mm² measuring grid (JEDEC/IPC 9704-compliant)
Pre-wired with 0,1m enameled copper wires + 3 m temperature-resistant TPE cable (4-wire configuration), and a 2 mm² measuring grid (new and JEDEC/IPC 9704-compliant)
Without a cable

The miniature rosettes are now also available with geometries that allow for measurements in compliance with the JEDEC/IPC 9704 standard.

Compact

The smallest variant is only 5 mm in diameter
Three stacked measuring grids
0.8 mm measuring grid length

If space is a constraint: Analysis of biaxial stress states with unknown principal stress direction in the most confined space

Easy handling

Various connection options
- Pre-wired with color-coded, enameled copper wires, 0.5 m wire length in a 2-wire configuration
- With 3 m TPE cable in a 4-wire configuration
- Without connection wires

No soldering on the strain gauge required

Available for immediate delivery

Standard versions available from stock

Save time and start straight away!

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Measuring grid width keyboard_arrow_down
Measuring grid width keyboard_arrow_down
Nominal resistance keyboard_arrow_down
Connection configuration keyboard_arrow_down
Measuring grid length keyboard_arrow_down
Measuring grid length keyboard_arrow_down
Carrier length keyboard_arrow_down
Carrier length keyboard_arrow_down

Code	Measuring grid length	Measuring grid length	Measuring grid width	Measuring grid width	Carrier length	Carrier length	Carrier width	Carrier width	Nominal resistance	Temperature response	Connection configuration
1-RF91-0.8/120ZE	0.8 mm	0.031 in	0.9 mm	0.035 in	5 mm	0.197 in	5 mm	0.197 in	120 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads
1-RF91-0.8/120_W	0.8 mm	0.031 in	0.9 mm	0.035 in	5 mm	0.197 in	5 mm	0.197 in	120 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Integrated solder tabs
1-RF91-1.4/350VE	1.4 mm	0.055 in	1.4 mm	0.055 in	6 mm	0.236 in	6 mm	0.236 in	350 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads
1-RF91-1/120DE	1 mm	0.0394 in	1 mm	0.039 in	5.2 mm	0.205 in	5.2 mm	0.205 in	120 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads
1-RF91-1/120ZE	1 mm	0.0394 in	1 mm	0.0394 in	5.2 mm	0.205 in	5.2 mm	0.205 in	120 Ohms	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F)	Leads
1-RF93-0.8/120ZE	0.8 mm	0.031 in	0.9 mm	0.035 in	5 mm	0.197 in	5 mm	0.197 in	120 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Leads
1-RF93-0.8/120_W	0.8 mm	0.031 in	0.9 mm	0.035 in	5 mm	0.197 in	5 mm	0.197 in	120 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Integrated solder tabs
1-RF93-1.4/350VE	1.4 mm	0.055 in	1.4 mm	0.055 in	6 mm	0.236 in	6 mm	0.236 in	350 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Leads
1-RF93-1/120ZE	1 mm	0.0394 in	1 mm	0.0394 in	5.2 mm	0.205 in	5.2 mm	0.205 in	120 Ohms	Aluminium (23 ppm/K; 12.8 ppm/°F)	Leads
1-RF95-0.8/120ZE	0.8 mm	0.031 in	0.9 mm	0.035 in	5 mm	0.197 in	5 mm	0.197 in	120 Ohms	Austenitic steel (16 ppm/K; 8.9 ppm/°F)	Leads
1-RF95-0.8/120_W	0.8 mm	0.031 in	0.9 mm	0.035 in	5 mm	0.197 in	5 mm	0.197 in	120 Ohms	Austenitic steel (16 ppm/K; 8.9 ppm/°F)	Leads
1-RF95-1.4/350VE	1.4 mm	0.055 in	1.4 mm	0.055 in	6 mm	0.236 in	6 mm	0.236 in	350 Ohms	Austenitic steel (16 ppm/K; 8.9 ppm/°F)	Leads
1-RF95-1/120ZE	1 mm	0.0394 in	1 mm	0.0394 in	5.2 mm	0.205 in	5.2 mm	0.205 in	120 Ohms	Austenitic steel (16 ppm/K; 8.9 ppm/°F)	Leads

F Series - Data Sheet	Data Sheets	English
F Series - Data Sheets	Data Sheets	German
F Series - Data Sheet	Data Sheets	Japanese
F Series - Data Sheet	Data Sheets	French
F Series - Data Sheet	Data Sheets	Spanish
F Series - Data Sheet	Data Sheets	Portuguese
F Series - Data Sheet	Data Sheets	Chinese
F Series - Data Sheet	Data Sheets	Italian

Certificates and Approvals

Strain Gauges and Accessories - Statement of Compliance

Declaration of Conformity

English

RF (Rosette)
Type/technology	Foil strain gauge
Application	Stress Analysis / structural testing
Geometry	3-grid rosette
Measuring grid length	1 mm, 1.4 mm, 0.8 mm
Measuring grid length	0.0394 in, 0.055 in, 0.031 in
Measuring grid width	1 mm, 1.4 mm, 0.9 mm
Measuring grid width	0.0394 in, 0.055 in, 0.035 in, 0.039 in
Carrier length	5.2 mm, 6 mm, 5 mm
Carrier length	0.205 in, 0.236 in, 0.197 in
Carrier width	5.2 mm, 6 mm, 5 mm
Carrier width	0.205 in, 0.236 in, 0.197 in
Temperature range	Limited temperature range
Nominal resistance	120 Ohms, 350 Ohms
Gauge factor (measuring grid material)	Constantan (ca 2.0)
Temperature response	Ferritic steel (10.8 ppm/K; 6.0 ppm/°F), Austenitic steel (16 ppm/K; 8.9 ppm/°F), Aluminium (23 ppm/K; 12.8 ppm/°F)
Maximum elongation	Standard
Fatigue life	Standard
Connection configuration	Leads, Integrated solder tabs
Mounting	Bondable
Grid protection	Covered

List of accessories available for all variants of this family

Product Code	Description
1-CA80	Cyanoacrylate adhesive (CA80) - 10 mL
1-X60	2-comp. q.-act. adhesive X60/100g+2x40ml
1-X60/A	Quick-act. adhesive X60/Comp. A - 100 g
1-X60/A-NP	Quick-act. adhesive X60/Comp. A - 400 g
1-X60/B	Quick-act. adhes. X60/Comp. B - 2 x 40ml
1-X60/B-NP	Quick-act. adhesive X60/Comp.B - 2x200ml
1-ABM75	Covering putty with aluminum foil ABM75
1-BR120	Butyl rubber protectiv covering BR120
1-SR180	Silicone covering SR180
1-RMS1-300	RMS1 solvent mixture 300 ml
K-KAB-ML	Measurement cable by the meter