www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 53018
58 Revision: 19-Aug-08
L
Vishay Sfernice Ultra Low Value
Thin Film Resistors
ELECTRICAL SPECIFICATIONS
Resistance range: 0.1 Ω to 9.99 Ω
Resistance tolerance: ± 1 % to ± 10 %
Power dissipation: 0.125 mW to 1 W at + 70 °C
Temperature coefficient: down to 100 ppm/°C
CLIMATIC SPECIFICATIONS
Operating temp. range: - 55 °C to + 155 °C
MECHANICAL SPECIFICATIONS
Substrate: Alumina
Resistive layer: NiCr + Ta2O5
Coating: Silicone
Terminations: Solderable
B type:
SnPb over nickel barrier
N type:
SnAg over nickel barrier
G type: gold over nickel barrier
POWER DERATING CURVE
TOLERANCE AND TCR VERSUS OHMIC
VALUE
PACKAGING
Several types of packaging are proposed: waffle-pack and
tape and reel
Note
(1) 12 mm on request
PACKAGING RULES
Waffle Pack
Can be filled up to maximum quantity indicated in the table
here above, taking into account the minimum order quantity.
When quantity ordered exceeds maximum quantity of a
single waffle pack, the waffle packs are stacked up on the top
of each other and closed by one single cover.
To get “not stacked up” waffle pack in case of ordered
quantity > maximum number of pieces per package:
Please concult Vishay/Sfernice for specific ordering
code
Tape and Reel
Can be filled up to maximum quantity indicated in the table
here above, taking into account the minimum order quantity.
When quantity ordered is between the MOQ and the
maximum reel capacity, only one reel is provided.
When several reels are needed for ordered quantity
within MOQ and maximum reel capacity: Please concult
Vishay/Sfernice for specific ordering code
VALUE
RANGE
TIGHTEST
TOLERANCE
%
BEST TCR
(ppm/°C) TERMINATIONS
0R1 < 0R25 1 % 300 N or B
0R25 < 0R5 1 % 200 N or B
0R5 < 9R99 1 % 100 N or B
0R1 < 0R5 10 % 300 G
0R5 < 9R99 5 % 200 G
07020 40 60 80 100 120 140 155
0
20
40
60
80
100
Ambient Temperature in °C
Rated Power (%)
SIZE MOQ
NUMBER OF PIECES PER PACKAGE
TAPE
WIDTH
WAFFLE PACK
2" × 2"
TAPE AND REEL
MIN. MAX.
0402
100
100
100
4000 8 mm
0505
0603
0805
0705
1005 221
1206 140
1505
60
2010 2000 8 mm (1)