Product Overview
Caddock's Type TK Low TC Precision Radial-Lead Film Resistors, featuring the proprietary Tetrinox resistance system, are engineered to overcome reliability challenges associated with other low TC precision resistor technologies. These resistors offer exceptional performance in harsh temperature cycling and power cycling environments. Key advantages include a low temperature coefficient (TC) of 5 ppm/C, 10 ppm/C, or 20 ppm/C over a wide temperature range, long-term absolute stability, an extended resistance range from 1 Kohm to 10 Megohm, and precision tolerances including 0.1% as standard. Their robust construction, small size, and non-inductive performance make them ideal for high-frequency circuits and high-density packaging in commercial and industrial applications. Caddock does not recommend these resistors for military applications due to the matte tin lead finish.
Product Attributes
- Brand: Caddock
- Resistance System: Tetrinox
- Lead Finish: Matte Tin (Sn)
- Compliance: RoHS Compliant
- Recommended Use: Commercial and Industrial applications
Technical Specifications
| Model Series | Temperature Coefficient (ppm/C) | Resistance Range | Standard Tolerance | Available Tolerances | Operating Temperature Range (C) | Power Rating (+85C) | Max. Working Voltage | 2000 hr Load Life R | Dimensions (Fig) | TC Identification |
|---|---|---|---|---|---|---|---|---|---|---|
| TK200 Series / TK700 Series | 5 or 10 | 1 Kohm to 1.5 Megohm | 0.1% | 1%, 0.05% | -40C to +150C | 0.2 Watt | 200V | < 0.07% | Fig 1 | 5 ppm/C: White Stripe 10 ppm/C: No Stripe |
| TK200 Series / TK700 Series | 10 or 20 | 1.51 Megohm to 10 Megohm | 0.1% | 1%, 0.05% | -40C to +150C | 0.3 Watt | 300V | < 0.10% | Fig 2 | 10 ppm/C: No Stripe 20 ppm/C: Green Stripe |
| TK229 | 5 or 10 | 1.00 K to 500 K | 0.1% | 1%, 0.05% | -40C to +150C | 0.2 Watt | 200V | < 0.07% | Fig 1 | 5 ppm/C: White Stripe 10 ppm/C: No Stripe |
| TK729 | 10 or 20 | 501 K to 2.00 Meg | 0.1% | 1%, 0.05% | -40C to +150C | 0.2 Watt | 200V | < 0.10% | Fig 1 | 10 ppm/C: No Stripe 20 ppm/C: Green Stripe |
| TK233 | 5 or 10 | 1.00 K to 900 K | 0.1% | 1%, 0.05% | -40C to +150C | 0.3 Watt | 300V | < 0.07% | Fig 2 | 5 ppm/C: White Stripe 10 ppm/C: No Stripe |
| TK733 | 10 or 20 | 1.51 Meg to 10.0 Meg | 0.1% | 1%, 0.05% | -40C to +150C | 0.3 Watt | 300V | < 0.10% | Fig 2 | 10 ppm/C: No Stripe 20 ppm/C: Green Stripe |
| General Specifications | ||||||||||
| Long-Term Absolute Stability | Typically better than 0.05% per 2,000 hours | |||||||||
| Dielectric Strength | 300V (Fig 1), 400V (Fig 2) | |||||||||
| Insulation Resistance | 10,000 Megohms | |||||||||
| Shelf Stability (Typical) | TK200/TK700 (Std Range): 50 ppm/year TK200/TK700 (Ext Range): 25 ppm/year | |||||||||
| Solderable Leads | Matte Tin Plated Copper | |||||||||
Derating Curve: 100% @ +85C, 40% @ +125C
2411220152_Caddock-TK233-50-0K-0-1--10PPM_C7123968.pdf
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