SFX

www.vishay.com

Vishay Electro-Films

Revision: 04-Mar-13

1

Document Number: 61018

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

Thin Film, Top-Contact Megohm Resistor

Product may not be to scale

The SFX series resistor chips extends the range of available

resistance to 20 M

 These offer one of the best

combinations of small size and high value available.

The SFXs are manufactured using Vishay Electro-Films (EFI)

sophisticated thin film equipment and manufacturing

technology. The SFXs are 100 % electrically tested and

visually inspected to MIL-STD-883, method 2032 class H or

class K.

FEATURES

• Wire bondable

• Megohm resistance range: 0.51 M

 to 20 M

• Chip size: 0.040 inches square standard, 0.030

inches square and 0.055 inches square optional

• Case: 0404

• Reduced hybrid size

• Resistor material: Tantalum nitride, self-passivating

• Oxidized silicon substrate

• Material categorization: For definitions of compliance

APPLICATIONS

The SFX series megohm resistor chips are designed for use

in hybrid packages which require small-size high-value

resistors.

TEMPERATURE COEFFICIENT OF RESISTANCE, VALUES, AND TOLERANCES

PARAMETER

VALUE

UNIT

Total Resistance Range

360K to 30M



Standard Tolerances

± 0.1, ± 0.5

%

TCR

± 50, ± 100, ± 250, ± 350

ppm/°C

360 k

Ω

10 M

Ω

0.1 %

Tightest Standard Tolerance Available

± 350 ppm/°C

± 50 ppm/°C

2 M

Ω 3.3 MΩ

± 250 ppm/°C

0.5 %

30 M

Ω

± 100 ppm/°C

SIZE (in inches)

MIN.

MAX.

0.030 x 0.030

360 k



10 M



0.040 x 0.040

510 k



20 M



0.055 x 0.055

1 M



30 M



STANDARD ELECTRICAL SPECIFICATIONS

PARAMETER

VALUE

UNIT

Noise, MIL-STD-202, Method 308

- 12 typ.

dB

Moisture Resistance, MIL-STD-202

Method 106, (Passivated only)

± 0.5 max.

R/R

%

Stability, 1000 h, + 125 °C, 10 mW

± 1.0 max.

R/R

%

Operating Temperature Range

- 55 to + 125

°C

Thermal Shock, MIL-STD-202, Method 107, Test Condition F

± 0.25 max.

R/R

%

High Temperature Exposure, + 150 °C, 100 h

± 0.5 max.

R/R

%

Dielectric Voltage Breakdown

400

V

Insulation Resistance



Operating Voltage

100 max.

V

DC Power Rating at + 70 °C (Derated to zero at + 175 °C)

0.020

W

5 x Rated Power Short-Time Overload, + 25 °C, 5 s

± 0.25 max.

R/R

%