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Time Electronics
Time Electronics 1040 Resistance Decade Box
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8-decade resistance box; 1 Ω–100 MΩ; to ±0.1%. RFQ + selection help.
Download datasheet PDF
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Key parameters
Accuracy
±1% (1 Ω, 10 MΩ); ±0.5% (10 Ω); ±0.1% (100 Ω…1 MΩ mid decades)
Type
8-decade precision resistance decade box
Residual Resistance
Less than 250 mΩ
Power Rating
1 W per resistor
Voltage Rating
Maximum 250 V DC / 176 V AC RMS
Max Current
0.5 A (1 Ω decade) down to µA on high decades
Fits wide-range resistance substitution where you need a Time Electronics 1040 covering 1 Ω to 100 MΩ in 1 Ω steps with mid-decade accuracy to ±0.1%.
Key advantages
- Range — 1 Ω to 100 MΩ in 1 Ω steps (8 decades)
- Accuracy — ±0.1% mid decades; ±0.5%/±1% on extremes
- Residual — <250 mΩ
- Ratings — 1 W per resistor; max 250 V DC / 176 V AC RMS
- TC — 50 ppm/°C; safety terminals
Typical applications
- Meter and bridge calibration aids.
- Circuit resistance substitution.
- Wide-range lab decade resistance.
Selection guide
- High end — 100 MΩ need
- Accuracy decade — Mid vs end decades
- Power/voltage — 1 W / 250 V limits
- Residual R — <250 mΩ context
Common mistakes
- Exceeding wattage on low decades.
- Ignoring residual on low settings.
- Overvoltage on high decades.
When to RFQ / what to tell us
- Quantity; ship-to; calibration cert if needed.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 25562 |
| Brand | Time Electronics |
| Model | 1040 Resistance Decade Box |
| Product type | Resistance Decade Box |
| Type | 8-decade precision resistance decade box |
| Range | 1 Ω to 100 MΩ in 1 Ω steps |
| Accuracy | ±1% (1 Ω, 10 MΩ); ±0.5% (10 Ω); ±0.1% (100 Ω…1 MΩ mid decades) |
| Residual resistance | Less than 250 mΩ |
| Power rating | 1 W per resistor |
| Voltage rating | Maximum 250 V DC / 176 V AC RMS |
| Max current | 0.5 A (1 Ω decade) down to µA on high decades |
| Temperature coefficient | 50 ppm/°C |
| Terminals | Safety terminals compatible with 4 mm shrouded plugs / wires / spades |
Documents
FAQ
Q: Range? A: 1 Ω to 100 MΩ in 1 Ω steps.
Q: Best accuracy? A: ±0.1% on 100 Ω…1 MΩ mid decades.
Q: What should I send for a quote? A: Quantity and ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | ±1% (1 Ω, 10 MΩ); ±0.5% (10 Ω); ±0.1% (100 Ω…1 MΩ mid decades) |
| Type | 8-decade precision resistance decade box |
| Residual Resistance | Less than 250 mΩ |
| Power Rating | 1 W per resistor |
| Voltage Rating | Maximum 250 V DC / 176 V AC RMS |
| Max Current | 0.5 A (1 Ω decade) down to µA on high decades |
| Temperature Coefficient | 50 ppm/°C |
| Terminals | Safety terminals compatible with 4 mm shrouded plugs / wires / spades |
| Construction | Metal case with removable protective rubber cover; gold multi-contact switches |
| Dimensions | W 215 × H 100 × D 120 mm / approx. 1 kg |
| Document | 1040 Data Sheet + 1040 User Manual |