VPR220S, VPR221S
Vishay Foil Resistors
Bulk Metal
®
Foil Technology
Precision Foil Surface Mount Power Resistors in TO-220 Configuration
FEATURES
• Leads preformed for surface mounting
• Power: 8 watts - chassis mounted (per MIL-R-39009)
• Load Life Stability:
±
0.05% maximum
∆R
at rated
power and temperature for 2,000 hours
Product may not
be to scale
SURFACE MOUNT
• Temperature Coefficient of Resistance: to
±
5ppm/°C
• Resistance Range: 0.5 to 10KΩ
• Tolerance: To
±
0.01%
Models VPR220S AND VPR221S, made from Vishay Bulk
Metal
®
Foil, offer low TCR, high stability, tight tolerance and fast
response time in a small, molded resistor. Model VPR220S is
a 2 lead device. Model VPR221S is a 4 lead Kelvin connected
device. The 4 leaded version is highly recommended for
precision applications requiring ohmic values of 100R or less.
• Low Thermal EMF: 0.15µV/°C maximum (lead effect)
• Non-Inductive Construction
• Heat sink is isolated
• Tin/Lead (Sn 60% Pb 40%) coated termination standard.
Lead free (100% Sn) option available
NOTES:
1. Maximum is 1.0% A.Q.L. standard for all
specifications except TCR. Typical is a designers
reference which represents that 85% of the units
supplied, over a long period of time, will be at least the
figure shown or better.
2. Whichever is lower.
3. Heat sink chassis dimensions and requirements
per MIL-R-39009/1B:
DIMENSION
Inches
mm
L
6.00
152.4
W
4.00
101.6
H
2.00
50.8
T
0.04
1.0
4. Inductance (L) due mainly to the leads.
5. The resolution limit of existing test equipment
(within the measurement capability of the equipment,
“essentially zero”).
6.
µV/°C
relates to EMF due to lead temperature
difference.
TABLE 1 - SPECIFICATIONS
Load Life Stability at 2,000 hrs
Shelf Life Stability
Power Rating @ + 25
°
C
±
0.05% max
∆R
under full rated power @ + 25°C
±0.0025%
∆R/year
8 watts or 3 amps
2
on heat sink
3
1.5 watts or 3 amps
2
in free air
Further derating not necesary.
Current Noise
High Frequency Operation
Rise/Decay Time
Inductance
4
(L)
Capacitance (C)
Voltage Coefficient
5
Operating Temperature Range
Maximum Working Voltage
Thermal EMF
6
< 0.010µV (rms)/volt of applied voltage (– 40dB)
0.2ns @ 1
Ω
0.1µH maximum: 0.03µH typical
1
1.0pF maximum: 0.5pF typical
1
< 0.1ppm/V
– 55°C to + 150°C
300 V. Not to exceed power rating.
0.15µV/°C maximum (lead effect)
TABLE 2 - VPR220S
RESISTANCE
RANGE (
Ω
)
50 to 10K
25 to < 50
10 to < 25
5 to < 10
TIGHTEST
RESISTANCE TOLERANCE
±
0.01%
±
0.02%
±
0.05%
±
0.1%
TCR*
±
5ppm/°C
±
7ppm/°C
±
10ppm/°C
±
13ppm/°C
TABLE 3 - VPR221S
RESISTANCE
RANGE (
Ω
)
0.5 to < 1
1 to < 10
10 to 500
TIGHTEST
RESISTANCE TOLERANCE
±
0.05%
±
0.02%
±
0.01%
TCR*
±
5ppm/°C
±
5ppm/°C
±
5ppm/°C
Weight = 1 gram Maximum
*Maximum specifications.
Lower values available but not recommended due to high TCR.
Weight = 1.2 grams Maximum
*Maximum specifications.
Contact Applications Engineering for other available values.
VISHAY FOIL • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31
• GERMANY +49.9287.710 FAX: +49 9287.70435
• ISRAEL +972.3.557.0945 FAX: +972.3.558.9121
• ITALY + 39.2.300.11919 FAX: +39.2.300.11999
• JAPAN +81.42.729.0661 FAX: +81.42.729.3400
• SINGAPORE +65.788.6668 FAX: +65.788.0988
• SWEDEN +46.8.594.70590 FAX: +46.8.594.70581
• UK +44 191 514 8237 FAX: +44 1953 457 722
• USA +1 610 407-4800 FAX: +1 610 640-9081
Document Number: 63050
Revision 20-Jul-04
www.vishay.com
33
VPR220S, VPR221S
Vishay Foil Resistors
SURFACE MOUNT
Bulk Metal
®
Foil Technology
Precision Foil Surface Mount Power Resistors in TO-220 Configuration
FIGURE 2 - VPR220S, VPR221S FORMING
DIMENSIONS
in inches (millimeters)
0.365 (9.271) Reference
0.015
±0.002
(0.381
±0.05)
+100
FIGURE 1 - POWER DERATING CURVE
Percent of Rated Power
+75
0.050
±0.005
(1.27
±0.13)
0.150
±0.008
(3.81
±0.2)
Before Forming
0.078
±0.005
(1.98
±0.13)
+50
0.695
±0.010
(17.65
±0.25)
+25
0.110 (2.794) Reference
0.090 (2.286) Reference
0
+25
+50
+75
+100
+125
+150
Ambient Temperature (°C)
0.090
±0.010
(2.286
±0.25)
Heat Sink
Flush with Heat Sink
Within
±0.002
(±0.051)
After Forming
FIGURE 3 - VPR220S DIMENSIONS
in inches (millimeters)
0.400
±
0.010
(10.16
±
0.25)
0.245
±0.010
(6.22
±0.25)
VISHAY
VPR220S
1K0 1%
0101
FIGURE 4 - VPR221S DIMENSIONS
in inches (millimeters)
0.400
±0.010
(10.16
±0.25)
0.115
±0.005
(2.92
±0.13)
0.141
±0.005
Diameter
(3.58
±0.13)
0.050
±0.005
(1.27
±0.13)
0.030
±0.002
(0.76
±0.05)
0.245
±0.010
(6.22
±0.25)
VISHAY
VPR221S
1R0 1%
0101
0.115
±0.005
(2.92
±0.13)
0.141
±0.005
Diameter
(3.58
±0.13)
0.050
±0.005
(1.27
±0.13)
0.030
±0.002
(0.76
±0.05)
I
1
E
1
E
2
I
2
0.200
±0.030
(5.08
±0.76)
0.200
±0.030
(5.08
±0.76)
0.200
±0.005
(5.08
±0.13)
0.100
±0.005
(2.54
±0.13)
TABLE 4 - ORDERING INFORMATION
Specify Vishay VPR220S or VPR221S for surface mount resistors as follows:
Example:
(none) = 60/40Tin/Lead
T = 100% Tin
(none) = Bulk Pack
T = Tape and Reel
VPR221S
5R0000
1.0%
MODEL NO.
TERMINATION
RESISTANCE VALUE
TOLERANCE
PACKAGING
Resistance value, in ohms, is expressed by a series of 6 characters, 5 of which represent significant digits while the 6th is a dual purpose
letter that designates both the multiplier and the location of the comma or decimal.
RESISTANCE
RANGE
0.5Ω to < 1KΩ
1KΩ to 10KΩ
LETTER
DESIGNATOR
R
K
MULTIPLIER
FACTOR
x1
x10
3
EXAMPLE
100R01 = 100.01Ω
5K2310 = 5,231Ω
VISHAY FOIL • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31
• GERMANY +49.9287.710 FAX: +49 9287.70435
• ISRAEL +972.3.557.0945 FAX: +972.3.558.9121
• ITALY + 39.2.300.11919 FAX: +39.2.300.11999
• JAPAN +81.42.729.0661 FAX: +81.42.729.3400
• SINGAPORE +65.788.6668 FAX: +65.788.0988
• SWEDEN +46.8.594.70590 FAX: +46.8.594.70581
• UK +44 191 514 8237 FAX: +44 1953 457 722
• USA +1 610 407-4800 FAX: +1 610 640-9081
www.vishay.com
34
Document Number: 63050
Revision 20-Jul-04
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
www.vishay.com
1
Programming Basics
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