L
Vishay Sfernice
Ultra Low Value
Thin Film Resistors
FEATURES
•
NiCr + Ta
2
O
5
resistive layer
•
Pre-soldered or gold terminations
•
No inductance for high frequency applications
•
Alumina substrates for high power handling
capability
•
Resistance range: 0.1
Ω
to 10
Ω
•
TCR: down to ± 50 ppm/°C
•
Power rating: up to 1 W at + 70 °C
With extremely low resistance and high power capabilities,
these ultra low value resistors are available with solderable
or weldable terminations.
Pb-free
Available
RoHS*
COMPLIANT
DIMENSIONS
in millimeters [inches]
A
D
D
C
B
E
E
DIMENSION
CASE
SIZE
A
MAX .TOL
+ 0.64 [+ 0.025]
MIN. TOL.
- 0.13 [- 0.005]
1.27 [0.050]
1.52 [0.060]
1.91 [0.075]
2.54 [0.100]
3.20 [0.126]
3.81 [0.150]
5.08 [0.200]
B
MAX. TOL.
+ 0.26 [+ 0.010]
MIN. TOL.
- 0.13 [- 0.005]
1.27 [0.050]
0.75 [0.030]
1.27 [0.050]
1.27 [0.050]
1.60 [0.063]
1.27 [0.050]
2.54 [0.100]
C
MAX .TOL
+ 0.64 [+ 0.025]
MIN. TOL.
- 0.13 [- 0.005]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
D/E
MAX. TOL.
+ 0.13 [+ 0.005]
MIN. TOL.
- 0.13 [- 0.005]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
0.38 [0.015]
POWER
RATING
mW
LIMITING
ELEMENT
VOLTAGE
V
RESISTANCE
RANGE
0505
0603
0705
0805
1005
1206
1505
2010
125
125
200
250
330
500
1000
50
50
50
50
50
50
50
0.1
Ω...
10
Ω
0.1
Ω...
10
Ω
0.1
Ω...
10
Ω
0.1
Ω...
10
Ω
0.1
Ω...
10
Ω
0.1
Ω...
10
Ω
0.1
Ω...
10
Ω
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 53018
Revision: 12-Dec-07
For technical questions, contact: sfer@vishay.com
www.vishay.com
57
L
Vishay Sfernice
ELECTRICAL SPECIFICATIONS
Resistance range:
Resistance tolerance:
Power dissipation:
Temperature coefficient:
0.1
Ω
to 10
Ω
± 1 % to ± 10 %
0.125 mW to 1 W at + 70 °C
down to ± 50 ppm/°C
Ultra Low Value
Thin Film Resistors
TOLERANCE AND TCR VERSUS OHMIC
VALUE
MINIMUM
TOLERANCE
± 10 %
±5%
±2%
±1%
±1%
OHMIC
VALUES
0.1
Ω
0.25
Ω
0.5
Ω
1
Ω
5
Ω
BEST TCR
ppm/°C
± 300
± 200
± 100
± 100
± 50
MECHANICAL SPECIFICATIONS
Substrate:
Resistive layer:
Coating:
Terminations:
Alumina
NiCr + Ta
2
O
5
Silicone
Solderable
B type:
SnPb over nickel barrier
N type:
SnAg over nickel barrier
G type:
gold over nickel barrier
PACKAGING
Several types of packaging are proposed: tube, waffle-pack
and tape and reel.
NUMBER OF PIECES PER PACKAGE
SIZE
TUBE
WAFFLE
PACK
2" x 2"
TAPE AND REEL
MIN.
MAX.
TAPE
WIDTH
CLIMATIC SPECIFICATIONS
Operating temp. range:
- 55 °C to + 155 °C
POWER DERATING CURVE
Rated Power (%)
100
80
60
40
0505
0603
0805
0705
1005
1206
250
140
00
100
100
2000
12 mm
500
100
100
4000
8 mm
20
0
1505
2010
0
20
40
60 70
80
100
120
140 155
Ambient Temperature in °C
PERFORMANCE
VALUES AND DRIFT
TESTS
CONDITIONS
MIL-R-55342 C
MIL-STD-702-Method 107
MIL-R-55342 C
PARA 3.10.4.7.5
MIL-R-55342 C
PARA 3.9 and 4.7.4
MIL-R-55342 C
PARA 3.12, 4.7.7, 4.7.1.2
MIL-R-55342 C
PARA 3.13 and 4.7.8
MIL-STD-202-Method 106
MIL-R-55342 C
PARA 3.11 and 4.7.6
MIL-R-55342 C
2000 h Pn at 70 °C
MIL-STD-202-Method 108
MIL-R-55342
REQUIREMENTS
± 0.25 %
± 0.10 %
± 0.25 %
± 0.25 %
TYPICAL
PERFORMANCES
± 0.02 %
± 0.01 %
± 0.01 %
± 0.04 %
Thermal shock
Short time overload
Low temperature operation
Resistance to solder heat
Moisture resistance
± 0.40 %
± 0.01 %
High temperature
± 0.20 %
± 0.075 %
Load life
± 0.50 %
± 0.15 %
www.vishay.com
58
For technical questions, contact: sfer@vishay.com
Document Number: 53018
Revision: 12-Dec-07
L
Ultra Low Value
Thin Film Resistors
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: L0805K1R00FBT0028
Vishay Sfernice
L
GLOBAL
MODEL
L
0
8
0
5
K
1
R
0
0
F
B
T
0
0
2
8
SIZE
0505
0603
0705
0805
1005
1206
1505
2010
TCR
H
= ± 50 ppm
K
= ± 100 ppm
L
= ± 200 ppm
M
= ± 300 ppm
VALUE
R designated
decimal point
TOLERANCE
F
=±1%
G
=±2%
H
=±3%
J
=±5%
K
= ± 10 %
TERMINATION
B:
SnPb over
nickel barrier
N:
SnAg over
nickel barrier
G:
gold over
nickel barrier
PACKAGING
blank:
Waffle pack
T:
Tape
and reel
OPTION
leave blank
if no option
B:
Lead bearing version
N and G:
Lead (Pb)-free/
RoHS version
Historical Part Number example: L 0805 K 1R00 1 % B T R0028
L
MODEL
0805
SIZE
K
TCR
1R00
VALUE
1%
TOLERANCE
B
TERMINATION
T
PACKAGING
R0028
OPTION
Document Number: 53018
Revision: 12-Dec-07
For technical questions, contact: sfer@vishay.com
www.vishay.com
59
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
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