# Keithley 2602B Dual-Channel System SourceMeter SMU Instrument (3A DC, 10A Pulse) # Keithley 2602B Dual-Channel System SourceMeter SMU Instrument (3A DC, 10A Pulse) ## Key Features At A Glance - Family spans nine models with output ranges from 200 V down to 0.1 fA sensitivity and pulse currents up to 10 A - Tightly integrated 4-quadrant voltage/current source and measure with 6½-digit resolution for source and measurement - Built-in Java-based test software runs directly from any web browser for plug-and-play I-V characterization with no PC installation - Test Script Processor (TSP) embeds complete test programs inside the instrument to eliminate PC-bus overhead during automated test - TSP-Link expansion interface synchronizes multiple units as a single multi-channel system without a mainframe (not available on 2604B/2614B/2634B) - Standard interfaces include USB 2.0, LXI Class C Ethernet (10/100BT), IEEE-488 GPIB, RS-232, and 14-bit digital I/O - High-capacitance mode supports capacitive loads up to 50 µF (typical) for stable sourcing into reactive devices - Software-compatible with the Keithley Model 2400 SourceMeter for migration of legacy test code The Keithley Series 2600B System SourceMeter SMU instruments are a family of source-measure units built on Keithley's third-generation SMU architecture. Each model combines the capabilities of a precision power supply, true current source, 6½-digit DMM, arbitrary waveform generator, pulse generator, and electronic load into a single tightly integrated instrument. The family includes single- and dual-channel configurations across three performance tiers — the 2601B/2602B/2604B for 3 A DC and 10 A pulse operation, the 2611B/2612B/2614B for 200 V and 10 A pulse operation, and the 2634B/2635B/2636B for low-current work down to 0.1 fA sensitivity. The datasheet identifies I-V functional test and characterization across a wide range of devices as the primary application set. Listed device categories include two- and three-leaded discrete and passive components — sensors, disk drive heads, metal oxide varistors, diodes, zener diodes, capacitors, thermistors, small-signal BJTs, and FETs — along with simple ICs such as optos, drivers, switches, sensors, converters, and regulators. The datasheet also calls out integrated devices including analog ICs, RFICs, ASICs, and system-on-a-chip parts; optoelectronic devices such as LEDs, laser diodes, HBLEDs, VCSELs, and displays; wafer level reliability work including NBTI, TDDB, HCI, and electromigration; and solar cells and batteries. ValueTronics is an authorized Keithley channel partner with a 20,000 sq ft secure facility at 1675 Cambridge Drive in Elgin, Illinois. Every Series 2600B unit we list — whether new or pre-owned — is processed through our in-house receiving, inspection, and test workflow before it ships. That work is performed by our own technicians in our own facility, not drop-shipped from a third party. The result is a documented condition report on every used unit and a single accountable contact if anything needs follow-up after delivery. ## Brand Heritage Keithley Instruments was founded in 1946 in Cleveland, Ohio and built its reputation on precision low-level current and voltage measurement. The company was acquired by Danaher Corporation in 2010 and, following Danaher's 2016 spin-off of its instrumentation businesses, became part of Fortive. Keithley today operates as a Tektronix company within the Fortive portfolio — the corporate co-branding visible on this datasheet's footer reflects that structure. Product development, calibration, and service support for the Series 2600B continue under the Keithley brand. ## Compare Other Models in This Series The Series 2600B is organized into three I-V envelopes that share a common architecture, common firmware, common TSP scripting, and a common set of host interfaces. The 2601B/2602B/2604B group is the 3 A / 40 V tier, optimized for higher-current source work with a 10 A pulse capability. The 2611B/2612B/2614B group is the 200 V / 1.5 A tier, optimized for higher-voltage work on the same physical chassis. The 2634B/2635B/2636B group shares the 200 V / 1.5 A envelope of the 2611B family but adds the low-current measurement ranges — down to 0.1 fA display resolution — needed for leakage, gate current, and other femtoamp-class characterization. Within each tier, the model number suffix indicates channel count and feature set: single-channel system models (2601B, 2611B, 2635B), dual-channel system models with full TSP-Link, contact check, and digital I/O (2602B, 2612B, 2636B), and dual-channel benchtop versions with TSP-Link, contact check, and digital I/O removed (2604B, 2614B, 2634B). The benchtop versions are positioned by the datasheet as value-priced alternatives for applications that do not require system-level automation. Each model on this page links to its own dedicated product page with condition-matched pricing. Whether you need a new 2602B for a multi-channel R&D bench or a new 2636B for femtoamp leakage work, the specifications and capabilities described here apply across both new and pre-owned units — the difference is condition, documentation, and price. The practical differences between the three tiers come down to the I-V envelope and the lowest measurable current. If the device under test runs at 3 A or higher current and below 40 V, the 2601B/2602B/2604B tier delivers the most usable power per channel (40.4 W vs. 30.3 W). If the device requires up to 200 V at lower currents, the 2611B/2612B/2614B tier or the 2634B/2635B/2636B tier are the correct choices. The deciding factor between those two 200 V tiers is the low end: the 2634B/2635B/2636B add the 100 pA and 1 nA current ranges (1 nA range on the 2635B; 100 pA range on the 2634B/2636B per the asterisked note) that the 2611B family does not have. Channel count and system features track the suffix. The single-channel models (2601B, 2611B, 2635B) are the right answer for applications that need one independent source/measure point. The dual-channel system models (2602B, 2612B, 2636B) double the channel density and retain TSP-Link expansion, contact check, and the 25-pin digital I/O — making them the building block for multi-SMU automated test. The dual-channel benchtop models (2604B, 2614B, 2634B) keep both channels but drop TSP-Link, contact check, and digital I/O. Model Channels Max Voltage Max Current (Pulse) **2602B** 2 40 V 10 A 2601B 1 40 V 10 A 2604B 2 40 V 10 A 2611B 1 200 V 10 A Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Operators and Programming Manuals - 2600-KIT: Mating Screw Terminal Connectors with strain relief and covers - CA-180-3A: TSP-Link/Ethernet Cable (two per unit) - TSP Express Software Tool (embedded) - Test Script Builder Software (supplied on CD) - LabVIEW Driver ## Product Core & Specifications Specification Value Voltage Source Voltage Ranges 100 mV, 1 V, 6 V, 40 V Voltage Programming Resolution 5 µV (100 mV) to 500 µV (40 V) Voltage Programming Accuracy (1 Year) 0.02% + 250 µV (100 mV) to 0.02% + 12 mV (40 V) Maximum Output Power 40.4 W per channel Source/Sink Limits ±40.4 V @ ±1.0 A, ±6.06 V @ ±3.0 A, four quadrant Current Source Current Ranges 100 nA, 1 µA, 10 µA, 100 µA, 1 mA, 10 mA, 100 mA, 1 A, 3 A, 10 A (pulse only) Current Programming Resolution (min) 2 pA (100 nA range) Current Programming Accuracy (1 Year) 0.06% + 100 pA (100 nA) to 0.06% + 4 mA (3 A) Source/Sink Limits ±1.01 A @ ±40.0 V, ±3.03 A @ ±6.0 V Pulse Max Pulse Current 10 A @ 20 V (1.8 ms, 1% duty) Minimum Programmable Pulse Width 100 µs Voltage Measurement Default Display Resolution 100 nV (100 mV range) Input Resistance \>10 GΩ Accuracy (1 Year) 0.015% + 150 µV (100 mV) to 0.015% + 8 mV (40 V) Current Measurement Default Display Resolution 100 fA (100 nA range) Voltage Burden <1 mV Accuracy (1 Year) 0.05% + 100 pA (100 nA) to 0.05% + 3.5 mA (3 A) Contact Check Accuracy 5% + 10 Ω (FAST) to 5% + 0.3 Ω (SLOW) General DC Floating Voltage ±250 VDC from chassis ground Interfaces IEEE-488, USB 2.0, RS-232, Ethernet (LXI Class C), TSP-Link, Digital I/O Power Supply 100 V to 250 VAC, 50-60 Hz, 240 VA max Operating Temperature 0°-50°C, 70% R.H. up to 35°C Dimensions 89 mm H × 213 mm W × 460 mm D (3.5 in × 8.375 in × 17.5 in) Weight 5.50 kg (12.0 lbs) **Important:** 200 V operation on the 2611B/2612B/2614B and 2634B/2635B/2636B requires the safety interlock pin on the digital I/O connector to be driven high (>3.4 V at 24 mA, absolute maximum 6 V). When the INTERLOCK signal is below 0.4 V, 200 V operation is blocked.**Important:** 200V operation on Models 2611B, 2612B, 2614B, 2634B, 2635B, and 2636B requires an active Safety Interlock signal (>3.4V @ 24mA) on the Digital I/O connector. 200V operation will be blocked when the INTERLOCK signal is <0.4V.**Important:** 10A current range is accessible only in pulse mode on all Series 2600B models.**Important:** 100nA range is not available in High Capacitance Mode (and 100nA and below are not available on Models 2634B/2635B/2636B in High-C mode).**Important:** Models 2604B, 2614B, and 2634B are benchtop versions that do NOT include TSP-Link, Contact Check, or Digital I/O capabilities.**Important:** 100 pA current measurement range is not available on Model 2634B.**Important:** Maximum DC floating voltage is 250VDC from chassis ground.**Important:** For Models 2611B/2612B/2614B/2634B/2635B/2636B, Triax cables and connectors are required for low-current measurements; the supplied 2600-ALG-2 Low Noise Triax Cable with Alligator Clips is included with 2634B (two), 2635B (one), and 2636B (two), but Models 2601B/2602B/2604B/2611B/2612B/2614B ship with screw terminal connectors (2600-KIT) and may require separate test leads or adapters (such as 2600-BAN or 2600-TRIAX) depending on the connection requirements of the device under test.Recommended pairing: TSP-enabled multi-unit systems use the supplied CA-180-3A CAT5 crossover cables (two per instrument) to chain instruments via the TSP-Link ports — Category 5e or higher, 3 meters maximum between nodes. **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:** 14025.0 USD - **Vendor:** Keithley - **Type:** Dc Supply - **Tags:** Keithley, Manufacturers, Meters & DAQ, product_manual_group_1, Product_new, Sourcemeter ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 14025.00 USD | In stock | ## Images - Keithley 2602B Dual-Channel System SourceMeter SMU Instrument (3A DC, 10A Pulse) --- > Source: [ValueTronics](https://valuetronics.com/products/2602b-keithley-sourcemeter-new) > Updated: 2026-05-30