70

www.vishay.com

Vishay Spectrol

Revision: 22-Sep-15

2

Document Number: 57076

For technical questions, contact: sferpottrimmers@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

Note

• Nothing stated herein shall be construed as a guarantee of quality or durability.

ELECTRICAL SPECIFICATIONS

Resistance range

10

 thru 2 M

Standard resistance tolerance

10 %

End resistance

2 % maximum

Actual effective electrical travel

20 turns nominal

Contact resistance variation

3 % or 3

, whichever is greater

Dielectric withstanding voltage

1000 VAC at sea level, 350 VAC at 80 000 feet (24 400 meters)

Insulation resistance

1000 M



Power rating

0.5 W at 70 °C

Circuit diagram

Limiting element voltage

350 V

Temperature coefficient of resistance (typical)

± 100 ppm/°C

MECHANICAL SPECIFICATIONS

Operating torque

5 oz. in (3.60 Ncm) maximum

Rotational life

200 cycles with loaded circuit, maximum change in resistance 2 % or

500 cycles without discontinuity unloaded

Weight

0.116 oz. (3.3 g) maximum

Terminals

Pure Sn (code e3)

ENVIRONMENTAL SPECIFICATIONS

Operating temperature range

-55 °C to +125 °C (100 °C for leadwire style)

Terminal strength

2 lbs (9 N) minimum push/pull

Sealed

All units sealed to permit cleaning in common solvents immersion

Climatic category

M70Y: 55/125/21

M70L: 55/100/21

PERFORMANCES

TESTS

CONDITIONS

TYPICAL VALUES AND DRIFTS

R

T/RT (%)

R

1-2/R1-2 (%)

Thermal shock

-55 °C to +125 °C, 5 cycles

(100 °C for leadwire style)

1 %

1 %

Shock

50 g at 11 ms, 3 successive shocks in 3 directions

1 %

1 %

Vibration

10 Hz to 55 Hz 0.75 mm or 10 g for 6 h

1 %

1 %

Load life

1000 h at rater power 90'/30'

1 %

5 %

High temperature exposure

+125 °C (100 °C for leadwire style)

1 %

5 %

Resistance to solder heat

350 °C for 3 s

1 %

-

0140

0.5

0

AMBIENT TEMPERATURE IN °C

0.1

0.6

0.4

0.3

0.2

120

100

80

70

60

40

20

70L

70Y

a

(1)

b

(2)

c

(3)

cw