VTA52 through 56, VMTA55, VMTB60
Vishay Foil Resistors
Bulk Metal® Foil Technology Tubular Axial-Lead Resistors,
Meets or Exceed MIL-R-39005 Requirements
FEATURES
• Temperature Coefficient of Resistance (TCR):
8 ppm/°C (- 55 °C to + 125 °C, + 25 °C Ref.)
4 ppm/°C (0 °C to + 60 °C)
Pb-free
Available
• Tolerance: to 0.01 %
RoHS*
• Load Life Stability:
COMPLIANT
0.05 % at 25 °C, 2000 hours at Rated Power
0.0025 % at 25 °C, 2000 hours at Low Power
• Electrostatic Discharge (ESD) above 25 000 Volts
• Resistance Range: 5 Ω to 500 kΩ
• Power Rating: 0.2 W to 1.0 W at 70 °C
• Non-Inductive, Non-Capacitive Design
Any value and tolerance available within resistance range
• Thermal EMF: 0.1 µV/°C maximum, 0.05 µV/°C typical
This series of axial leaded resistors is made using the same
foil technology as the S102C. The difference is axial versus
radial leads. Axial leads have the advantage of readily
available auto insertion equipment while the radial leaded
devices may require additional tooling. Also, when
converting from metal film (RNC 55) to foil (VMTA 55) boards
may already be laid out for the axial leaded device. It is worth
noting that for new designs the S102C footprint is the
smallest in the industry (taking into account the need for lead
exit to board pad length allowance).
Our Application Engineering Department is available to
advise and to make recommendations. For non-standard
technical requirements and special applications, please
contact us.
• Voltage Coefficient: < 0.1 ppm/V
• Terminal Finishes available: Lead (Pb)-free
Tin/Lead
• For better performances, please contact Application
Engineering
• Any value available within resistance range (e.g. 1K2345)
• Prototype samples available from 48 hours. For more
information, please contact foil@vishaypg.com
FIGURE 1 - POWER DERATING CURVE
Double Rated Power
220
200
180
Rated
Power
160
140
120
100
80
TABLE 1 - TCR (for values under 50R)
- 55 to + 125 °C,
VALUES
0 °C to + 60 °C
+ 25 °C Ref.
8 ppm/°C
25R - 50R
5 ppm/°C
6 ppm/°C
8 ppm/°C
15 ppm/°C
60
40
15R - 24R999
5R - 14R999
1R - 4R999
10 ppm/°C
12 ppm/°C
20 ppm/°C
+ 145 °C
20
0
30 40 50 60 70 80 90 100 110 120 130 140 150
Ambient Temperature (°C)
TABLE 2 - MODEL SELECTION
POWER
VISHAY
MODEL
MIL
STYLE
MAXIMUM
WORKING VOLTAGE
RESISTANCE
TIGHTEST
TOLERANCE
TCR RANGE2)
RANGE1) (Ω)
at + 70 °C
at + 125 °C
5 to 24R9
0.1 %
V4
VTA56
VTA55
VTA54
VTA53
VTA52
VMTA55
VMTB60
RBR56
RBR55
RBR54
RBR53
RBR52
RNC55
RNC60
0.25 W
0.3 W
0.5 W
0.66 W
1.0 W
0.2 W
0.25 W
0.125 W
300 V
25 to 150K
0.01 %
V3, V2
5 to 24R9
25 to 150K
5 to 24R9
25 to 300K
5 to 24R9
25 to 300K
5 to 24R9
25 to 500K
5 to 49R9
50 to 30K
5 to 49R9
50 to 60K
0.1 %
0.01 %
0.1 %
0.01 %
0.1 %
0.01 %
0.1 %
0.01 %
0.1 %
0.01 %
0.1 %
0.01 %
V4
V3, V2
V4
V3, V2
V4
V3, V2
V4
V3, V2
V4
V3, V2
V4
V3, V2
0.15 W
0.25 W
0.33 W
0.5 W
300 V
300 V
300 V
300 V
200 V
250 V
0.1 W
0.125 W
Notes
1. For higher/lower resistance values, consult the Application Engineering Department
2. TCR options for values > 50 Ω
V4 = 4 ppm/°C (0 to + 60 °C); 8 ppm°C (- 55 °C to + 125 °C, + 25 °C Ref.)
V3 = 3 ppm/°C (0 to + 60 °C); 5 ppm/°C (- 55 °C to + 125 °C, + 25 °C Ref.)
V2 = 2 ppm/°C (0 to + 60 °C); 5 ppm/°C (- 55 °C to + 125 °C, + 25 °C Ref.)
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 63011
Revision: 23-Mar-10
For any questions, contact: foil@vishaypg.com
www.foilresistors.com
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