PRA HR (CNW HR)

www.vishay.com

Vishay Sfernice

Space Applications Only

Revision: 19-Nov-14

1

Document Number: 53043

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

ESCC 4001/025 (

) Qualified High Precision

Thin Film Chip Resistor Arrays

Vishay Sfernice Thin Film division holds ESCC QML

qualification (ESCC technology flow qualification). PRA

Hi-Rel arrays can be used in most applications requiring a

matched pair (or set) of resistor elements. The networks

provide 3 ppm/°C TCR tracking, a ratio tolerance as tight as

0.05 % and outstanding stability. They are available in

1 mm, 1.35, mm and 1.82 mm pitch.

DIMENSIONS

Note

FEATURES

• Thin film technology

• High stability passivated nichrome resistive layer 0.02 %

on ratio, 1000 h at Pn at +70 °C

• Tight TCR (10 ppm/°C) and TCR tracking (3 ppm/°C)

• Very low noise < -35 dB and voltage coefficient

< 0.01 ppm/V

• Ratio tolerance to 0.01 % (R

 200R)

• Pre-tinned terminations over nickel barrier

• ESA/ESCC qualified

• ESCC 4001 (generic specification)

• ESCC 4001/025 (detailed specification)

• SMD wraparound chip resistor array

• Up to eight different ohmic values (CNW HR)

• Suitable for military use

• Material categorization: for definitions of compliance

TYPICAL PERFORMANCE

TC tracking: 3 ppm/°C if all resistors of the array are:



Rn > 250



TC tracking: 5 ppm/°C if one or more resistors of the array

is in the range: 100

 to 250  included

DIM.

PRA HR 100

PRA HR 135

PRA HR 182

mm

mil

mm

mil

mm

mil

A1.6

+ 0.2



- 0.1

63

1.85

+ 0.2



- 0.1

72

3.0

+ 0.2



- 0.1

118

B

0.34 ± 0.17

13

0.34 ± 0.17

13

0.34 ± 0.17

13

C0.65

+ 0.15



- 0.15

25.5

1.05

+ 0.15



- 0.15

41

1.3

+ 0.35



- 0.15

51

D

0.25100.25100.2510

E = (N x F) ± 0.2 mm

E = (N x F) ± 8 mil

F

1

40

1.35

53.1

1.82

72

G0.38

+ 0.2



- 0

15

0.38

+ 0.2



- 0

15

0.38

+ 0.2



- 0

15

P

0.7

27.5

1.05

41.3

1.52

59.8

Q

0.3

12

0.3120.3

12

R

1

401401

40

S

0.6

23.5

0.8

31.5

1.8

70.8

R

R

F

P

S

Q

Land Pattern

ABSOLUTE

TRACKING

TCR

10 ppm/°C

3 ppm/°C

ABSOLUTE

RATIO

TOL.

0.1 %

0.05 %

I: Independent resistors

E

F

G

C

D

B

A

Termination

Electrical diagram

Number of resistors:

2 to 8

R1 = R2 = ... R8

R1

R2

R7

R8

C: One common point N resistors

F

G

E

C

D

B

A

Number of resistors:

2 to 8

R1 = R2 = ... R8

R1

R2

R7

R8