Type USVD and Type HVD
Ultra-Precision Voltage Dividers - 450 Volts to 5 KV
Type USVD Ultra-Precision Voltage Dividers
have the
very highest precision available in voltage dividers in the range of 450
Volts DC up to 2000 Volts DC. These dividers are formed by bonding
together two selected Type USF Ultra-Precision Resistors. The precise
selection of these high performance resistors, which form the voltage
dividers, makes possible the outstanding voltage division performance.
Ratio Tolerance as tight as 0.01% and Ratio TC of 2ppm/°C.
Part Number
Vmax
Continuous
Operating
Voltage
(VDC)
USVD2 - B1M - 010 - 02
450
100 : 1
USVD2 - B1M - 025 - 02
450
USVD2 - B2M - 010 - 02
650
Voltage
Division
(RT : R2)
Resistance
Type HVD Ultra-Precision Voltage Dividers
are
monolithic voltage dividers built with ceramic sandwich construction.
These voltage dividers have ultra-precision performance in the
range of 1500 volts DC to 5000 volts DC, with a Ratio Tolerance of
0.05% and Ratio TC of 5ppm/°C. These dividers are ideal for high
performance voltage division applications in medical equipment,
laboratory equipment, analytical instruments, etc.
Ratio
Tolerance
(RT : R2)
Ratio T.C.
(RT : R2)
Ratio V.C.
(RT : R2)
Fig.
1 Meg
0.01%
2 ppm/°C
0.05 ppm/V
1
10 K
1 Meg
0.025%
2 ppm/°C
0.05 ppm/V
1
20 K
2 Meg
0.01%
2 ppm/°C
0.02 ppm/V
1
R1
R2
RT = R1 + R2
990 K
10 K
100 : 1
990 K
100 : 1
1.98 Meg
USVD2 - B2M - 025 - 02
650
100 : 1
1.98 Meg
20 K
2 Meg
0.025%
2 ppm/°C
0.02 ppm/V
1
USVD2 - A10M - 010 - 02
1400
1,000 : 1
9.99 Meg
10 K
10 Meg
0.01%
2 ppm/°C
0.02 ppm/V
1
USVD2 - A10M - 025 - 02
1400
1,000 : 1
9.99 Meg
10 K
10 Meg
0.025%
2 ppm/°C
0.02 ppm/V
1
USVD2 - B10M - 010 - 02
1400
100 : 1
9.9 Meg
100 K
10 Meg
0.01%
2 ppm/°C
0.02 ppm/V
1
USVD2 - B10M - 025 - 02
1400
100 : 1
9.9 Meg
100 K
10 Meg
0.025%
2 ppm/°C
0.02 ppm/V
1
USVD2 - A20M - 010 - 02
2000
1,000 : 1 19.98 Meg
20 K
20 Meg
0.01%
2 ppm/°C
0.02 ppm/V
1
USVD2 - A20M - 025 - 02
2000
1,000 : 1 19.98 Meg
20 K
20 Meg
0.025%
2 ppm/°C
0.02 ppm/V
1
USVD2 - B20M - 010 - 02
2000
100 : 1
19.8 Meg
200 K
20 Meg
0.01%
2 ppm/°C
0.02 ppm/V
1
USVD2 - B20M - 025 - 02
2000
100 : 1
19.8 Meg
200 K
20 Meg
0.025%
2 ppm/°C
0.02 ppm/V
1
HVD5 - A10M - 050 - 05
1500
1,000 : 1
9.99 Meg
10 K
10 Meg
0.05%
5 ppm/°C
0.02 ppm/V
2
HVD5 - B10M - 050 - 05
1500
100 : 1
9.9 Meg
100 K
10 Meg
0.05%
5 ppm/°C
0.02 ppm/V
2
HVD5 - A20M - 050 - 05
2500
1,000 : 1 19.98 Meg
20 K
20 Meg
0.05%
5 ppm/°C
0.02 ppm/V
2
HVD5 - B20M - 050 - 05
2500
200 K
20 Meg
0.05%
5 ppm/°C
0.02 ppm/V
2
HVD5 - A50M - 050 - 05
5000
50 K
50 Meg
0.05%
5 ppm/°C
0.04 ppm/V
2
HVD5 - B50M - 050 - 05
5000
500 K
50 Meg
0.05%
5 ppm/°C
0.04 ppm/V
2
100 : 1
19.8 Meg
1,000 : 1 49.95 Meg
100 : 1
49.5 Meg
FIG. 1
Marking Side
R1
.500 ±.020
(12.7 ±.51)
R2
2
1
Pin 1
Input
1.500 ±.020
(38.1 ±.51)
.155 ±.025
(3.94 ±..64)
3
.500 ±.125
(12.7 ±3.18)
4
Pin 2
To be held
near ground
Circuit Board
Trace
Pin 1
.115 ±.020
(2.92 ±.51)
FIG. 2
CADDOCK
USVD2-A20M-010-02
0622
.032 DIA.
(.81 DIA.)
.200 ±.020
(5.08 ±.51)
.800 ±.020
(20.32 ±.51)
1.350 ±.020
(34.29 ±.51)
Pin1
1 2 3
Pin 1, 2, and 3
Input
4 5
0.110 Max.
(2.79 Max.)
1.500 ±.020
(38.10 ±.51)
R2
6
Pin 6
To be held
near ground
0.050 ±0.015
(1.27 ±0.38)
0.100 (2.54)
0.100 (2.54)
CADDOCK
CADDOCK
HVD5-A50M-050-05
HVD5-A50M-050-05
0247
0609
0.900
(22.86)
0.100 (2.54)
0.200 (5.08)
0.610 Max.
(15.5 Max.)
0.150 ±.040
(3.81 ±1.0)
0.020 ±.002
(0.51 ±.05)
Ratio Tolerance (RT : R2): See table.
Ratio Tolerance measured at +23°C ±2°C,
at 100 volts DC applied to the divider.
Absolute TC: USVD2: 10 ppm/°C, HVD5: 30 ppm/°C,
referenced to +25°C, ∆R taken at -40°C and +85°C.
Ratio Temperature Coefficient (RT : R2): See
table. Ratio Temperature Coefficient from -40°C to
+85°C.
Ratio Voltage Coefficient (RT : R2): See table.
Maximum Ratio V.C. measured at 10% of Vmax.
to 100% of Vmax.
Voltage Rating: Maximum voltage (volts DC)
applied to RT = (R1 + R2). See table.
Load Life Stability: Ratio stability with maximum
continuous operating voltage applied to the divider
for 1000 hours at +85°C, ratio change 0.02% max.
Overvoltage: 1.5 times rated voltage for 5
seconds, ratio change 0.02% max.
Thermal Shock: Mil-Std-202. Method 107, Cond. A,
except minimum temperature is -40°C, ratio change
0.02% max.
Custom Type USVD and Type HVD
Voltage Dividers: For high quantity applications
(greater than 1000 per year) these voltage dividers
can be produced with custom voltage division ratios and
ratio specifications that optimize the performance and
the cost for your application.
See note
0.010 ±.002
(0.25 ±.05)
Note: Lead form detail provides interference
in the circuit board hole to achieve a vertical
mount of the device. Recommended circuit
board hole is nominally 0.039 inch (.99 mm).
ELECTRONICS, INC.
e-mail: caddock@caddock.com • web: www.caddock.com
For Caddock Distributors listed by country see caddock.com/contact/dist.html
© 2003-2017 Caddock Electronics, Inc.
Absolute Tolerance: ±0.10% for all resistors,
measured at +23°C ±2°C.
Operating Temperature: -40°C to +85°C
Marking Side
R1
Specifications:
Sales and Applications Engineering
17271 North Umpqua Hwy.
Roseburg, Oregon 97470-9422
Phone: (541) 496-0700
Fax: (541) 496-0408
28_IL132.0717
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