www.vishay.com

For technical questions, contact: sfer@vishay.com

Document Number: 53033

68

Revision: 23-Jan-07

PRA 100, 135, 182 (CNW)

Vishay Sfernice

High Precision Resistor Arrays

SPECIAL FEATURES

Resistance values can be different on a given network

(R max./R min. as high as 300). Tooling charges might

be required depending on the ohmic values in the

same network. Please, consult VISHAY SFERNICE for

ohmic values, tolerances and also temperature coefficient

(e.g. ± 1 ppm/°C) outside the standard range.

PACKAGING

Several types of packaging are available: waffle-pack and

tape and reel.

POWER RATING

MARKING

On the primary package, printed information includes

VISHAY S.A. trademark series and model, schematic

number of resistors, ohmic value, absolute tolerance, ratio

tolerance, type of termination: B tinned over nickel barrier.

Note:

Rn: nominal resistance

MECHANICAL SPECIFICATIONS

Substrate

Alumina

Technology

Thin film

Film

Nickel chromium with mineral passivation

Terminations

B type: SnPb over nickel barrier

N type: SnAg over nickel barrier

G type: Gold over nickel barrier

070

20

40

60

80

100

120

140 155

0

20

40

60

80

100

Ambient Temperature in °C

PERFORMANCE

TESTS

CONDITIONS

CECC REQUIREMENTS

DRIFTS

ABSOLUTE PER

(Typical Values)

RATIO

Overload

2.5 Un/2 s

0.05 % Rn + 0.05

Ω

0.01 % Rn

Climatic sequences

- 55 °C + 155 °C/5 moisture cycles

0.1 % Rn + 0.05

Ω

0.01 % Rn

Thermal shock

- 55 °C + 155 °C/5 cycles 30'

0.05 % Rn + 0.05

Ω

0.01 % Rn

Load life

1000 h/Pn at + 70 °C

0.1 % Rn + 0.05

Ω

0.02 % Rn

Resistance to solder heat

260 °C/10 s

0.05 % Rn + 0.05

Ω

0.01 % Rn

Moisture resistance

0.01 Pn at + 40 °C 93 % RH

0.1 % Rn + 0.05

Ω

0.01 % Rn

High temperature storage

1000 h/no load at + 155 °C

0.1 % Rn + 0.05

Ω

0.02 % Rn