# Keithley 2606B System SourceMeter SMU Instrument # Keithley 2606B System SourceMeter SMU Instrument ## Key Features At A Glance - Four-channel SMU instrument in a single 1U full-rack chassis; stackable with no 1U thermal spacing required between units - 20-watt-per-channel power envelopes: 20 V at 1 A and 6 V at 3 A, with full four-quadrant DC and pulse operation - Tightly integrated source-and-measure architecture with 6½-digit resolution and 0.015% basic DCV measurement accuracy - Test Script Processor (TSP) technology embeds complete test programs inside the instrument for high-throughput automated testing - TSP-Link channel-expansion bus synchronizes multiple units to under 500 ns for SMU-per-pin parallel testing without a mainframe - Front-panel LAN (LXI-C), USB 2.0 TMC488, and up to 28 open-drain digital I/O bits across the chassis - Built-in web-browser-based interface enables remote control from any computer with a standard browser - Code-compatible with the Keithley 2602B System SourceMeter SMU Instrument when using the new ranges The Keithley 2606B System SourceMeter is a four-channel Source Measure Unit (SMU) instrument that consolidates the functions of a precision power supply, true current source, 6½-digit DMM, arbitrary waveform generator, and pulse generator into a single 1U full-rack chassis. Built on Keithley's third-generation SMU architecture, the 2606B delivers four 20-watt SMU channels in a tightly integrated source-and-measure package designed for demanding automated qualification and production-test environments. The 2606B is positioned for I-V functional test and characterization across a wide range of devices. Per the datasheet, typical applications include optoelectronic devices such as VCSELs and laser diodes used in 3D sensing and telecommunications, high-brightness LEDs used in consumer products and automobiles, and displays. The datasheet also lists integrated devices including analog ICs, RFICs, ASICs, and system-on-a-chip (SOC) devices, along with discrete and passive components such as two-leaded sensors, disk drive heads, metal oxide varistors, diodes, zener diodes, capacitors, thermistors, and three-leaded BJTs and FETs. Simple ICs including optos, drivers, switches, sensors, converters, and regulators are also called out. ValueTronics has supported automated test, semiconductor characterization, and optoelectronic-device test labs since 1992 from our 20,000 sq ft secure facility at 1675 Cambridge Drive, Elgin, Illinois. Every {{CONDITION}} 2606B chassis we ship is handled, inspected, and prepared in-house by our own technicians — not drop-shipped from a third party or routed through a broker. That direct chain of custody is what lets us stand behind condition descriptions, accessory completeness, and calibration documentation in a way that pass-through resellers structurally cannot. ## Brand Heritage Keithley Instruments was founded in Cleveland, Ohio in 1946 and built its reputation around precision low-level current and voltage measurement and source-measure unit technology. Keithley was acquired by Danaher Corporation in 2010 and, in 2016, moved with the broader test-and-measurement portfolio to Fortive Corporation when Fortive was spun off from Danaher. The Keithley brand and the System SourceMeter product line continue to operate under Tektronix, also a Fortive company, with Keithley-branded SMU instruments remaining the reference for I-V characterization in semiconductor and optoelectronic test. ## Accessories Supplied - Operators and Programming Manuals - CA-180-16 LAN crossover cable, 0.41 m (16 in.) (2 included) - 174710700 Shielded CAT5 Crossover Cable for TSP-Link and direct Ethernet connection, 1.5 m (5 ft.) - CA-568 Green and yellow ground cable, 3 m (120 in.) - 2600-KIT Eight-pin custom cable connector, cable housing, and strain relief (4 included) - 7709-308A 25-pin D-shell connector kit (for Digital I/O port) (2 included) - 4299-13 1U Fixed Rack Mount Kit (Minimum 0.686 m / 27 inches rail depth required) - Power Line Cord (Country Dependent) - Test Script Builder Software (Available download from www.tek.com) - LabVIEW Driver (Available download from www.tek.com) - User's Manual (Available download from www.tek.com) ## Product Core & Specifications Specification Value DC Power Maximum output power per channel 20.2 W maximum Voltage source limits 20.2 V at 1.0 A, −20.2 V at −1.0 A; 6.06 V at 3.0 A, −6.06 V at −3.0 A Current source limits 1.01 A at 20 V, −1.01 A at −20 V; 3.03 A at 6 V, −3.03 A at −6 V Number of SMU channels 4 Voltage Source / Measure Voltage ranges 100 mV, 1 V, 6 V, 20 V Source programming resolution (best) 5 µV (100 mV range) Source accuracy (best) ±(0.02% + 250 µV) on 100 mV range Measure display resolution (best) 100 nV (100 mV range) Measure accuracy (best) ±(0.015% + 150 µV) on 100 mV range DCV basic accuracy 0.015% Current Source / Measure Current ranges 100 nA, 1 µA, 10 µA, 100 µA, 1 mA, 10 mA, 100 mA, 1 A, 3 A Source programming resolution (best) 2 pA (100 nA range) Source accuracy (best) ±(0.06% + 100 pA) on 100 nA range Measure display resolution (best) 100 fA (100 nA range) Measure accuracy (best) ±(0.05% + 100 pA) on 100 nA range Pulse Minimum programmable pulse width 100 µs Pulse width programming resolution 1 µs Pulse width programming accuracy ±5 µs Pulse width jitter 2 µs Additional Source Characteristics Noise (10 Hz to 20 MHz) < 20 mV peak-peak, < 3 mV RMS, 6 V range Transient response time <70 µs to recover within 0.1% for 10% to 90% step change in load Guard offset voltage <4 mV, current <10 mA Remote sense operating range Max 3 V between HI and SENSE HI; Max 3 V between LO and SENSE LO Additional Measurement Characteristics Input impedance \> 10 GΩ Sense high input impedance \>10 GΩ Maximum sense lead resistance 1 kΩ for rated accuracy Maximum load impedance Normal mode 10 nF; High capacitance mode 50 µF Common mode voltage 250 VDC Common mode isolation \>1 GΩ, < 4500 pF Overrange 101% of source range; 102% of measure range Measurement Speed Maximum sweep rate (0.001 NPLC, Internal trigger) Up to 20,000 readings/s (Measure to Memory, 60 Hz / 50 Hz) Maximum single measurement rate (0.001 NPLC) 1900 (1800) readings/s, Measure to USB Maximum measurement range change rate \>7000/s for >10 µA; >2200/s when changing to/from a range ≥1 A Command processing time <1 ms Triggering and Synchronization Trigger in to trigger out 0.5 µs Trigger in to source change 10 µs Trigger timer accuracy ±2 µs Source change after LXI trigger 280 µs Multi-node synchronized source change < 0.5 µs Single-node synchronized source change < 0.5 µs Programming / Memory Embedded scripting Test Script Processor (TSP) Minimum user memory available 16 MB (approximately 250,000 lines of TSP code) Buffer size (with timestamp and source setting) \>60,000 samples Buffer size (without timestamp and source setting) \>140,000 samples Timing Timer Free-running 47-bit counter with 1 MHz clock input Timestamp resolution 1 µs Timestamp accuracy ±100 ppm Digital I/O Interface Connector 25-pin female D Input/Output pins 14 open drain I/O bits per module (up to 28 total) Absolute maximum input voltage 5.25 V Absolute minimum input voltage −0.25 V Maximum logic low input voltage 0.7 V, +850 µA max Minimum logic high input voltage 2.1 V, +570 µA Maximum source current +960 µA Maximum sink current at max logic low (0.7 V) −5.0 mA Absolute maximum sink current −11 mA 5 V power supply pin Limited to 250 mA, solid-state fuse protected Interfaces & Expansion Ethernet RJ-45 connector, LXI version 1.4 Core 2011, 10/100BaseT, Auto-MDIX LXI compliance LXI version 1.4 Core 2011 Expansion interface TSP-Link (Category 5e or higher LAN crossover cable, 9.84 ft / 3 m max between instruments) TSP-Link nodes Maximum of 32 nodes; each source-measure module uses one TSP-Link node TSP-Link connectors Four (two on each module) USB Control USB 2.0 Device: USB-TMC488 protocol USB File System USB 2.0 Host: Mass storage class device General Power supply 100 VAC to 240 VAC, 50 Hz or 60 Hz (auto sensing), 425 VA maximum Cooling Forced air; front and side intakes and rear exhaust Warranty 1 year EMC Conforms to European Union EMC Directive Safety NRTL Listed to UL61010-1, and CSA C22.2 No 61010-1; Conforms with European Union Low Voltage Directive Environment For indoor use only Altitude Maximum 6562 ft (2000 m) above sea level Operating temperature/humidity 0°C to 50°C, 70% relative humidity up to 35°C; derate 3% RH/°C, 35°C to 50°C Storage temperature −25°C to 65°C Dimensions (Rack Mount) 1.7 in. high × 19 in. wide × 26.8 in. deep (44 mm × 483 mm × 680 mm) Weight 13.6 kg (30 lb.) **Important:** Common mode voltage is 250 VDC; maximum voltage between HI and SENSE HI is 3 V, and maximum voltage between LO and SENSE LO is 3 V. Maximum load impedance is 10 nF in normal mode and 50 µF in high-capacitance mode.**Important:** Specifications apply at 23°C ±5°C, <70% relative humidity, after a two-hour warm-up period, speed normal (1 NPLC), A/D autozero enabled, remote sense operation or properly zeroed local operation, and a one-year calibration period.**Important:** The System SourceMeter will allow quadrant II and quadrant IV operation; however, it is intended for low power or short transient behavior. Operation in quadrant II and quadrant IV could result in an overtemperature error.**Important:** For temperatures 0°C to 18°C and 28°C to 50°C, accuracy is degraded by ±(0.15 × accuracy specification)/°C.**Important:** Rack mounting requires a minimum rail depth of 27 inches (0.686 m). The included 4299-13 1U Fixed Rack Mount Kit is provided.**Important:** Internally sensed temperature overload puts the instrument in standby mode (overtemperature protection).Recommended pairing: when higher SMU channel counts are needed, multiple 2606B chassis stack directly on top of each other without thermal spacing and interconnect via TSP-Link for synchronized multi-channel test. The 2606B is also code-compatible with the Keithley 2602B when using the new ranges, which simplifies mixed-fleet TSP-Link expansion. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 36600.0 USD - **Vendor:** Keithley - **Type:** Dc Supply - **Tags:** Keithley, Manufacturers, Meters & DAQ, product_manual_group_2, Product_new, Sourcemeter ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 36600.00 USD | In stock | ## Images - 2606B Keithley Sourcemeter --- > Source: [ValueTronics](https://valuetronics.com/products/2606b-keithley-sourcemeter-new) > Updated: 2026-05-30