P
High Precision Wraparound
Thin Film Chip Resistors Vishay Sfernice
Document Number: 53017 For technical questions, contact: sfer@vishay.com www.vishay.com
Revision: 02-May-07 3
ELECTRICAL SPECIFICATIONS
Resistance Range: 10 Ω to 3 MΩ
Resistance Tolerance: ± 0.1 % to ± 5 %
± 0.01 % to ± 0.05 % on Y type
Power Dissipation: Pn: 50 mW to 1 W
Pd: 37 mW to 500 mW
on tolerance tighter than ± 0.05 %
Temperature Coefficient: see table below
MECHANICAL SPECIFICATIONS
Substrate: Alumina
Technology: Thin Film
Film: Nickel Chromium with mineral
passivation or Ta2N
Protection: Silicon
Terminations: B type: SnPb over nickel barrier
for solder reflow
N type: SnAg over nickel barrier
G type: gold over nickel barrier
for other applications
CLIMATIC SPECIFICATIONS
Operating Temp. Range: - 55 °C to + 155 °C
For temperature up to 200 °C, please consult factory
* R > 50 Ω on request for lower values
** Reduced operating range: 0 °C; + 70 °C
option available for ( - 25 °C; + 85 °C)
POWER DERATING CURVE
PACKAGING
Several types of packaging are available: tube, waffle-pack, and
tape and reel.
* 12 mm on request
** Reduced operating range: 0 °C; + 70 °C
option available for ( - 25 °C; + 85 °C)
* 0.05 % under Pd
TEMPERATURE COEFFICIENT
TCR CODE FILM
± 5 ppm/°C** Z Ni Cr
± 10 ppm/°C* Y Ni Cr
± 25 ppm/°C E Ni Cr
± 50 ppm/°C H Ni Cr or Ta2N
± 100 ppm/°C K Ni Cr or Ta2N
SIZE
NUMBER OF PIECES PER PACKAGE
TAPE
WIDTH
WAFFLE
PACK
2" × 2"
TAPE AND REEL
MIN. MAX.
0402
100
100 4000 8 mm
0505
0603
0805
0705
1005 140
1206
1505 60
2010 100 2000 8 mm*
BEST TOL. AND TCR V RESISTANCE VALUE
TIGHTEST
TOLERANCE CODE OHMIC VALUES TCR
ppm/°C
± 0.25 % C R > 10 Ω± 25
± 0.10 % B R > 25 Ω± 20
± 0.05 % W R > 50 Ω± 10
± 5**
± 0.02 % P R > 100 Ω
± 0.01 % L R > 250 Ω
REWOP DETAR %
100
80
60
40
20
0
0 20 40 60 70 80 100 120 140 155
AMBIENT TEMPERATURE IN °C
PERFORMANCE
TESTS CONDITIONS
Ta2N DRIFTS Ni Cr
MIL-PRF-55342G
Requirements
Ty p i c a l
Performances MIL-PRF-55342G Ty p i c a l
Performances
Thermal Shock MIL-PRF-55342G
MIL-STD-202 F-Method 107 F ± 0.25 % ± 0.02 % ± 0.05 % ± 0.02 %
Short Time Overload MIL-PRF-55342G
Para 3.10.4.7.5 ± 0.10 % ± 0.01 % ± 0.05 % ± 0.01 %
Low Temperature Operation MIL-PRF-55342G
Para 3.9 & 4.7.4 ± 0.25 % ± 0.01 % ± 0.05 % ± 0.01 %
Resistance to Solder Heat MIL-PRF-55342G
Para 3.12, 4.7.7, 4.7.1.2 ± 0.25 % ± 0.04 % ± 0.05 % ± 0.03 %
Moisture Resistance MIL-PRF-55342G
Para 3.13 & 4.7.8
MIL-STD-202 F-Method 106 E
± 0.40 % ± 0.01 % ± 0.10 % ± 0.01 %
High Temperature MIL-PRF-55342G
Para 3.11 & 4.7.6 ± 0.20 % ± 0.075 % ± 0.05 % ± 0.05 %
Load Life MIL-PRF-55342G
2000 hours Pn at 70 °C
MIL-STD-202 F-Method 108 A
± 0.50 % ± 0.15 % ± 0.5 % ± 0.10 %*