Call:+86 13689553728 Email:sales@hv-caps.com
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High Voltage Ceramic Capacitor Expert
Does HVC offer replacements for Caddock TG/TF series high voltage resistors?
Yes — HVC Capacitor's HVR product portfolio includes direct equivalents for Caddock's TG (tube/glass) and TF (flat/film) high voltage resistor families, addressing Caddock's limited production capacity and extended lead times with immediate availability.
| Caddock Series | Type | Voltage Range | Power Rating | HVC Equivalent | Status |
| TG / TGL | Tubular glass encapsulated | 15kV – 75kV | 10W – 75W | HVR-BSP/BOP (Tube) | ✅ Active replacement |
|---|---|---|---|---|---|
| TF / TFL | Flat film planar | 5kV – 35kV | 5W – 50W | HVR-GFP/GXP (Flat) | ✅ Active replacement |
| MG / MS | Metal glaze precision | 2kV – 20kV | 1W – 10W | HVR-Precision (Custom) | ✅ Available on request |
| 9G Series | Ultra-HV cylindrical | 50kV – 150kV | 25W – 250W | HVR-UltraHV (Custom) | ✅ Engineering development |
For engineers concerned about specification equivalence during qualification testing:
| Test Parameter | Caddock Typical Value | HVC HVR Typical Value | Compliance |
| Voltage Coefficient | <50 ppm/V | <30 ppm/V | ✅ Exceeds |
|---|---|---|---|
| Load Life Stability | ±0.5% after 1000hrs | ±0.3% after 1000hrs | ✅ Better |
| Short-Time Overload | 10x rated power, 5 seconds | 12x rated power, 5 seconds | ✅ Higher margin |
| Dielectric Withstand | 1.5x rated voltage DC | 1.8x rated voltage DC | ✅ Superior |
| Insulation Resistance | >10¹² Ω typical | >10¹² Ω typical | ✅ Equivalent |
Note: Caddock's reputation for ultra-high-precision metal-glaze resistors in scientific instrument applications is well-deserved. For metrology-grade applications requiring ±0.01% tolerance or <10 ppm/°C TCR, HVC recommends maintaining Caddock as primary source while using HVR for general-purpose high-voltage positions where such extreme precision is not required.
Contact: Sales Department
Phone: +86 13689553728
Tel: +86-755-61167757
Email: sales@hv-caps.com
Add: 9B2, TianXiang Building, Tianan Cyber Park , Futian, Shenzhen, P. R. C
