Dual-Range Linear DC Power Supply TK6860 / TK6870
Dual-Range Linear DC Power Supply TK6860 / TK6870 - TK6861A Free standard shipping to supported destinations. See the shipping policy for preparation and transit estimates.
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Shipping & returns
Shipping & returns
Free standard shipping is available to supported destinations. Delivery time includes order preparation and transit and varies by destination. See our shipping policy for current delivery estimates and availability.
See our return policy for return conditions. For an order-specific delivery question, contact Mcooh.
Dual-Range Linear DC Power Supply TK6860 / TK6870 - TK6861A Free standard shipping to supported destinations. See the shipping policy for preparation and transit estimates.
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Description
Description
The Testkey TK6860 and TK6870 linear DC power supply family provides one output with two selectable voltage/current ranges. Compare the six models by the voltage, current and power limits available in each range.
Each model provides one output with two selectable voltage/current ranges. Compare both ranges for the intended DUT, including their individual power ratings. The DVM has its own 80 Vpk input limit. TK6874A range 2 uses a 72 V maximum and 2 mV voltage-setting resolution.
Model comparison and specifications
| Specification | TK6861A | TK6862A | TK6863A |
|---|---|---|---|
| Range 1 voltage range | 0–22 V | 0–36 V | 0–36 V |
| Range 1 current range | 0–5 A | 0–3 A | 0–3 A |
| Range 1 rated power | 110 W | 108 W | 108 W |
| Range 2 voltage range | 0–9 V | 0–20 V | 0–81 V |
| Range 2 current range | 0–10 A | 0–6 A | 0–1.5 A |
| Range 2 rated power | 90 W | 120 W | 121.5 W |
| Range 2 voltage setting resolution | 1 mV | ||
| Load / line voltage regulation | ≤0.01%+4mV | ≤0.01%+3mV | ≤0.01%+3mV |
| Load / line current regulation | ≤0.01%+2mA | ||
| Differential voltage ripple and noise | ≤3 mVpp / ≤1 mVrms | ≤3.5 mVpp / ≤1 mVrms | ≤3 mVpp / ≤1 mVrms |
| Differential current ripple and noise | <9 mArms | <7 mArms | <6 mArms |
| Transient recovery, full ↔ half load | <50 µs to within 75 mV | ||
| Voltage rise time, 10–90% | <90 ms | ||
| Voltage fall time, 90–10% | <150 ms | <200 ms | <250 ms |
| Specification | TK6872A | TK6873A | TK6874A |
|---|---|---|---|
| Range 1 voltage range | 0–36 V | 0–81 V | 0–152 V |
| Range 1 current range | 0–6 A | 0–3 A | 0–1.5 A |
| Range 1 rated power | 216 W | 243 W | 228 W |
| Range 2 voltage range | 0–15 V | 0–36 V | 0–72 V |
| Range 2 current range | 0–12 A | 0–6 A | 0–2 A |
| Range 2 rated power | 180 W | 216 W | 160 W |
| Range 2 voltage setting resolution | 1 mV | 1 mV | 2 mV |
| Load / line voltage regulation | ≤0.01%+6mV | ≤0.01%+5mV | ≤0.01%+6mV |
| Load / line current regulation | ≤0.01%+5mA | ≤0.01%+4mA | ≤0.01%+4mA |
| Differential voltage ripple and noise | ≤4 mVpp / ≤1 mVrms | ≤4 mVpp / ≤1 mVrms | ≤5 mVpp / ≤1 mVrms |
| Differential current ripple and noise | ≤10 mArms | ≤8 mArms | ≤7 mArms |
| Transient recovery, full ↔ half load | <50 µs to within 120 mV | <50 µs to within 75 mV | <50 µs to within 75 mV |
| Voltage rise time, 10–90% | <120 ms | <180 ms | <250 ms |
| Voltage fall time, 90–10% | <350 ms | <250 ms | <350 ms |
Specifications shared by all listed models
| Specification | Value |
|---|---|
| Independent output channels | 1 |
| Rated output temperature range | 0–40°C |
| Range 1 voltage setting resolution | 1 mV |
| Current setting resolution | 0.1 mA |
| Voltage readback resolution | 1 mV |
| Current readback resolution | 0.1 mA |
| Voltage setting accuracy, 1 year at 25 ± 5°C | ±(0.04% of reading + 8 mV) |
| Current setting accuracy, 1 year at 25 ± 5°C | ±(0.1% of reading + 5 mA) |
| Voltage readback accuracy, 1 year at 25 ± 5°C | ±(0.04% of reading + 8 mV) |
| Current readback accuracy, 1 year at 25 ± 5°C | ±(0.1% of reading + 5 mA) |
| DC voltage meter input range | 0–80 Vpk differential and common mode |
| DC voltage meter resolution / accuracy | 1 mV / ±(0.05% + 10 mV) |
| Output and compensation connections | Front/rear output and sense terminals |
| Programmable sequences / stored setups | 20 trigger files × 1,000 steps, 1,000 stored setups |
| Overall dimensions, W × H × D | 260 × 110 × 445 mm |
| Communication protocols | SCPI, MODBUS |
| Protection | Overvoltage, overcurrent, overtemperature |
| Communication connections | RS232/RS485, USB HOST, USB DEVICE |
| Net weight | 9.65 kg |
The integrated eight-channel temperature measurement module is optional and supports K, T, J, N, E, S, R and B thermocouples.
Included equipment
- Selected TK6860 / TK6870 series instrument
- TSK107 China-standard (3C), three-core three-pin AC power cord
Product photographs show the TK6872 configuration. The selected model determines the supplied electrical specification and channel configuration.
Browse Power Supply to compare related instruments.

