Caddock Electronics Ultra-Precision Voltage Dividers
Product Overview
Caddock's Type USVD and Type HVD Ultra-Precision Voltage Dividers offer the highest precision available for voltage division applications. The USVD series covers the range of 450 Volts DC up to 2000 Volts DC, while the HVD series extends from 1500 Volts DC to 5000 Volts DC. These dividers are constructed by bonding together selected Type USF Ultra-Precision Resistors (USVD) or built with monolithic ceramic sandwich construction (HVD). They are ideal for high-performance voltage division in demanding applications such as medical equipment, laboratory equipment, and analytical instruments, providing exceptional ratio tolerance and temperature stability.
Product Attributes
- Brand: Caddock Electronics, Inc.
- Construction (HVD): Monolithic ceramic sandwich construction
- Construction (USVD): Formed by bonding two selected Type USF Ultra-Precision Resistors
- Origin: USA (implied by address)
Technical Specifications
| Model | Resistance (R1 + R2) | R1 | R2 | Voltage Division (RT : R2) | Vmax (Volts DC) | Ratio Tolerance (RT : R2) | Ratio T.C. (RT : R2) | Ratio V.C. (RT : R2) | Absolute Tolerance | Absolute TC | Operating Temperature | Load Life Stability (Ratio Change) | Overvoltage (Ratio Change) | Thermal Shock (Ratio Change) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| USVD2 - B1M - 010 - 02 | 990 K | 10 K | 100 : 1 | 450 | 0.01% | 2 ppm/C | 0.05 ppm/V | 0.10% | 10 ppm/C (USVD2) | -40C to +85C | 0.02% max. | 0.02% max. | 0.02% max. | |
| USVD2 - B1M - 025 - 02 | 990 K | 20 K | 100 : 1 | 450 | 0.025% | 2 ppm/C | 0.05 ppm/V | |||||||
| USVD2 - B2M - 010 - 02 | 1.98 Meg | 10 K | 100 : 1 | 650 | 0.01% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - B2M - 025 - 02 | 1.98 Meg | 20 K | 100 : 1 | 650 | 0.025% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - A10M - 010 - 02 | 9.99 Meg | 10 K | 1,000 : 1 | 1400 | 0.01% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - A10M - 025 - 02 | 9.99 Meg | 10 K | 1,000 : 1 | 1400 | 0.025% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - B10M - 010 - 02 | 9.9 Meg | 100 K | 100 : 1 | 1400 | 0.01% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - B10M - 025 - 02 | 9.9 Meg | 100 K | 100 : 1 | 1400 | 0.025% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - A20M - 010 - 02 | 19.98 Meg | 20 K | 1,000 : 1 | 2000 | 0.01% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - A20M - 025 - 02 | 19.98 Meg | 20 K | 1,000 : 1 | 2000 | 0.025% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - B20M - 010 - 02 | 19.8 Meg | 200 K | 100 : 1 | 2000 | 0.01% | 2 ppm/C | 0.02 ppm/V | |||||||
| USVD2 - B20M - 025 - 02 | 19.8 Meg | 200 K | 100 : 1 | 2000 | 0.025% | 2 ppm/C | 0.02 ppm/V | |||||||
| HVD5 - A10M - 050 - 05 | 9.99 Meg | 10 K | 1,000 : 1 | 1500 | 0.05% | 5 ppm/C (HVD5) | 0.02 ppm/V | 0.10% | 30 ppm/C (HVD5) | -40C to +85C | 0.02% max. | 0.02% max. | 0.02% max. | |
| HVD5 - B10M - 050 - 05 | 9.9 Meg | 100 K | 100 : 1 | 1500 | ||||||||||
| HVD5 - A20M - 050 - 05 | 19.98 Meg | 20 K | 1,000 : 1 | 2500 | ||||||||||
| HVD5 - B20M - 050 - 05 | 19.8 Meg | 200 K | 100 : 1 | 2500 | ||||||||||
| HVD5 - A50M - 050 - 05 | 49.95 Meg | 50 K | 1,000 : 1 | 5000 | ||||||||||
| HVD5 - B50M - 050 - 05 | 49.5 Meg | 500 K | 100 : 1 | 5000 |
Custom Options
For high quantity applications (greater than 1000 per year), custom voltage division ratios and ratio specifications are available to optimize performance and cost.
Dimensions (Refer to Figures)
Figure 1 (USVD2):
- Overall Length: 1.500 .020 (38.1 .51)
- Body Diameter: .500 .020 (12.7 .51)
- Lead Diameter: .032 DIA. (.81 DIA.)
- Lead Spacing: .115 .020 (2.92 .51)
- Body Height: 0.110 Max. (2.79 Max.)
- Lead Length: .200 .020 (5.08 .51)
Figure 2 (HVD5):
- Overall Length: 0.900 (22.86)
- Body Diameter: 0.610 Max. (15.5 Max.)
- Lead Diameter: 0.020 .002 (0.51 .05)
- Lead Spacing: 0.100 (2.54)
- Body Height: .155 .025 (3.94 .64)
2411220204_Caddock-USVD2-A10M-010-02_C1363427.pdf
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