VSMP2018 datasheet(3/5 Pages) VISHAY

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TABLE 5 - PERFORMANCES



TEST OR CONDITIONS

MIL-PRF-55342

CHARACTERISTIC E

R LIMITS

TYPICAL

R LIMITS

MAXIMUM

R LIMITS (1)

Thermal Shock, 100 x (- 65 °C to + 150 °C)

± 0.1 %

± 0.005 % (50 ppm)

± 0.01 % (100 ppm)

Low Temperature Operation, - 65 °C, 45 min at Pnom

± 0.1 %

± 0.005 % (50 ppm)

± 0.01 % (100 ppm)

Short Time Overload, 6.25 x Rated Power, 5 s

± 0.1 %

± 0.005 % (50 ppm)

± 0.01 % (100 ppm)

High Temperature Exposure, + 150 °C, 100 h

± 0.1 %

± 0.01 % (100 ppm)

± 0.02 % (200 ppm)

Resistance to Soldering Heat

± 0.2 %

± 0.005 % (50 ppm)

± 0.01 % (100 ppm)

Moisture Resistance

± 0.2 %

± 0.005 % (50 ppm)

± 0.02 % (200 ppm)

Load Life Stability + 70 °C for 2000 h at Rated Power

± 0.5 %

± 0.005 % (50 ppm)

± 0.01 % (100 ppm)

VSMP Series (0603, 0805, 1206, 1506, 2010, 2018, 2512) (Z-Foil)

Vishay Foil Resistors

Document Number: 63060

For any questions, contact: foil@vishaypg.com

www.vishayfoilresistors.com

Revision: 29-Oct-2012

Note

(1) As shown + 0.01

 to allow for measurement errors at low values

FIGURE 4 - RECOMMENDED MOUNTING

Notes

(1) IR and vapor phase reflow are recommended.

(2) Avoid the use of cleaning agents which could attack epoxy resins, which form part

of the resistor construction

(3) Vacuum pick up is recommended for handling

(4) If the use of a soldering iron becomes necessary, precautionary measures should

be taken to avoid any possible damage / overheating of the resistor

* Recommendation: The solder fillet profile should be such as to avoid running over

the top metallization

FIGURE 5 - VSMP0603 100 CYCLE

THERMAL SHOCK - 65 °C TO

150 °C, 10 UNITS EACH VALUE

100

- 20

- 40

VSMP0603

100R

VSMP0603

FIGURE 6 - LOAD LIFE TEST FOR

10,000 HRS @0.3W, +70°C;

VSMP 1206, N=40

-500

-400

-300

-200

-100

100

200

300

400

500

1000

2000

3000

4000

5000

6000

7000

8000

9000 10000

(ppm)

Time (hrs)

10R

12K

CRYOGENIC TEST

Different expansion/contraction rates of composite materials

in resistors may induce discontinuities during temperature

excursions that are not evident at temperature extremes,

making an unreliable resistor appear normal. A good resistor

must also return to its initial value with no resistance drift. In

this demo, a VFR VSMP0805 precision resistor is monitored

through the range of +25°C, down to -196°C and back up to

+25°C. Results confirm the VSMP0805 exhibits only 5

ppm/°C TCR, experiences no discontinuities, and returns to

its exact same starting value, showing absolutely no change

in resistance (< 1 ppm measurement accuracy).

FIGURE 7 - PRECISION RESISTOR IN

CRYOGENIC CONDITIONS -

ONLY 5 PPM/

°C

(PRODUCT DEMO)

VSMP2018 Datasheet(PDF) 3 Page - Vishay Siliconix

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