Keithley Instruments Germany

(A2LA Cert. No. 2611.01) 07/28/2025 Page 1 of 10 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 KEITHLEY INSTRUMENTS GERMANY Landsberger Str. 65 82110 Germering, GERMANY Thomas Worm Phone: +49 (89) 84 93 07 -35 CALIBRATION Valid To: September 30, 2027 Certificate Number: 2611.01 In recognition of the successful co mpletion of the A2LA evaluation process (including an assessment of the organization’s compliance with R205 – A2LA’s Calibration Program Requirements), accreditation is granted to this laboratory to perform the following calibrations 1: I. Electrical – DC/Low Frequency Parameter/Equipment Range CMC 2 (±) Comments DC Voltage – Generate 6 Fixed Point (0.001 to 0.004) V (0.004 to 0.01) V (0 to 0.22) V (0.22 to 2.2) V (2.2 to 11) V (11 to 22) V (22 to 220) V (220 to 1100) V (300 to 3000) V 10 V 27 µV/V 20 µV/V 6.0 µV/V + 0.40 µV 3.5 µV/V + 0.70 µV 2.5 µV/V + 2.5 µV 2.5 µV/V + 4.1 µV 3.5 µV/V + 40 µV 4.5 µV/V + 0.40 mV 59 µV/V + 30 mV 0.72 µV/V Fluke 5730A (based on 90 day specs) into Keithley 262 divider Fluke 5730A (based on 90 day specs) Characterized Keithley 2657A, Keithley 2002 Fluke 7001 DC Voltage – Generate 3 (0 to 0.2) V (0.2 to 2) V (2 to 20) V (20 to 200) V (300 to 3000) V 23 µV/V + 49 µV 13 µV/V + 52 µV 15 µV/V + 60 µV 26 µV/V + 0.73 mV 59 µV/V + 30 mV Voltage source Keithley 2002 Characterized Keithley 2657A, Keithley 2002

(A2LA Cert. No. 2611.01) 07/28/2025 Page 2 of 10 Parameter/Equipment Range CMC2, 7 (±) Comments DC Voltage – Measure 5, 6 (0.001 to 0.1) V (0.1 to 1) V (1 to 10) V (10 to 100) V (100 to 500) V (500 to 1000) V (300 to 3000) V 14 µV/V + 0.42 µV 12 µV/V + 0.42 µV 12 µV/V + 0.90 µV 14 µV/V + 42 µV 18 µV/V + 0.15 mV 28 µV/V + 0.15 mV 59 µV/V + 25 mV Agilent 3458A Voltage divider & Keithley 2002 DC Voltage – Measure3 (0 to 0.2) V (0.2 to 2) V (2 to 20) V (20 to 200) V (300 to 3000) V 23 µV/V + 19 µV 13 µV/V + 20 µV 15 µV/V + 24 µV 26 µV/V + 0.66 mV 59 µV/V + 25 mV Keithley 2002 Voltage divider & Keithley 2002 DC Current – Generate4, 6 Pulsed (1 ms Max) (0.2 to 2) pA (2 to 20) pA (20 to 200) pA (0.2 to 2) nA (2 to 20) nA (20 to 200) nA (5 to 100) nA (0.1 to 1) µA (1 to 10) µA (10 to 220) µA (0.22 to 2.2) mA (2.2 to 22) mA (22 to 220) mA (0.22 to 1) A (1 to 2.2) A (2.2 to 5) A (1 to 10) A (10 to 20) A (20 to 50) A 0.075 % + 4.1 fA 0.075 % + 4.1 fA 0.021 % + 41 fA 0.021 % + 41 fA 0.018 % + 0.41 pA 0.014 % + 4.1 pA 41 µA/A + 59 pA 29 µA/A + 74 pA 29 µA/A + 0.15 µA 35 µA/A + 6.0 nA 30 µA/A + 7.0 nA 30 µA/A + 41 nA 40 µA/A + 0.70 µA 60 µA/A + 12 µA 0.011 % + 12 µA 0.034 % + 0.48 mA 76 µA/A + 2.0 mA 76 µA/A + 3.5 mA 95 µA/A + 3.2 mA Keithley 5156, Fluke 5730A (based on 90 day specs) Auxiliary current source characterized with Agilent 3458A Fluke 5730A (based on 90 day specs) Fluke 5730A/5725A Agilent 3458A, 0.1 Ω shunt

(A2LA Cert. No. 2611.01) 07/28/2025 Page 3 of 10 Parameter/Equipment Range CMC2, 7 (±) Comments DC Current – Generate3 (0 to 1) pA (1 to 10) pA (10 to 100) pA (0.1 to 1) nA (1 to 10) nA (10 to 100) nA (0.1 to 1) µA (1 to 10) µA (10 to 100) µA (0.1 to 1) mA (1 to 10) mA (10 to 100) mA (0.1 to 1) A 0.12 % + 2.2 fA 0.12 % + 2.3 fA 0.024 % + 17 fA 0.012 % + 34 fA 0.012 % + 90 fA 0.012 % + 0.44 pA 0.012 % + 3.9 pA 0.012 % + 37 pA 82 µA/A + 0.30 nA 82 µA/A + 3.0 nA 93 µA/A + 30 nA 0.012 % + 0.30 µA 0.024 % + 5.5 µA Keithley 2002 Keithley 7177 current source DC Current – Measure5, 6 Pulsed (1 ms Max) (0.1 to 1) pA (1 to 10) pA (10 to 100) pA (0.1 to 1) nA (1 to 10) nA (10 to 100) nA (0 to 100) nA (0.1 to 1) ) µA (1 to 10) µA (10 to 100) µA (0.1 to 1) mA (1 to 10) mA (10 to 100) mA (0.1 to 1.1) A (1.1 to 5) A (1 to 10) A (10 to 20) A (20 to 50) A 0.075 % + 4.1 fA 0.075 % + 4.1 fA 0.022 % + 41 fA 0.022 % + 42 fA 0.018 % + 0.43 pA 0.015 % + 4.2 pA 41 µA/A + 59 pA 29 µA/A + 59 pA 29 µA/A + 0.13 nA 29 µA/A + 1.1 nA 29 µA/A + 7.0 nA 29 µA/A + 70 nA 47 µA/A + 0.70 µA 0.014 % + 13 µA 69 µA/A + 6.0 µA 76 µA/A + 10 mA 76 µA/A + 11 mA 95 µA/A + 11 mA Keithley 5156 Agilent 3458A Agilent 3458A KI 2300-RBOX with Agilent 3458A Agilent 3458A, 0.1 Ω shunt DC Current – Measure 3 (0 to 1) pA (1 to 10) pA (10 to 100) pA (0.1 to 1) nA (1 to 10) nA (10 to 100) nA (0.1 to 1) µA (1 to 10) µA (10 to 100) µA (0.1 to 1) mA (1 to 10) mA (10 to 100) mA (0.1 to 1) A 0.12 % + 2.2 fA 0.12 % + 2.3 fA 0.024 % + 17 fA 0.012 % + 34 fA 0.012 % + 89 fA 0.012 % + 0.43 pA 0.012 % + 3.8 pA 0.012 % + 37 pA 82 µA/A + 0.29 nA 82 µA/A + 2.9 nA 93 µA/A + 29 nA 0.012 % + 0.30 µA 0.024 % + 5.1 µA Keithley 2002 Keithley 7177

(A2LA Cert. No. 2611.01) 07/28/2025 Page 6 of 10 Parameter/Range Frequency CMC2, 7 (±) Comments AC Current – Measure 6 (cont.) (10 to 100) mA ( 0.1 to 1) A (10 to 20) Hz (20 to 45) Hz (45 to 100) Hz 100 Hz to 5 kHz (10 to 20) Hz (20 to 45) Hz (45 to 100) Hz 100 Hz to 5 kHz 0.47 % + 23 µA 0.18 % + 23 µA 0.069 % + 23 µA 0.035 % + 23 µA 0.47 % + 0.24 mA 0.19 % + 0.23 mA 0.092 % + 0.23 mA 0.12 % + 0.23 mA Agilent 3458A (based on 2 year specs) AC Voltage – Generate 4, 6 (1 to 2.2) mV (2.2 to 22) mV (22 to 220) mV 220 mV to 2.2 V (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz 0.022 % + 4.1 µV 85 µV/V + 4.0 µV 75 µV/V + 4.0 µV 0.018 % + 4.0 µV 0.046 % + 5.0 µV 0.090 % + 10 µV 0.12 % + 20 µV 0.25 % + 20 µV 0.022 % + 4.1 µV 85 µV/V + 4.0 µV 75 µV/V + 4.0 µV 0.018 % + 4.0 µV 0.046 % + 5.0 µV 0.090 % + 10 µV 0.12 % + 20 µV 0.25 % + 20 µV 0.022 % + 12 µV 85 µV/V + 7.2 µV 75 µV/V + 7.0 µV 0.018 % + 7.0 µV 0.042 % + 17 µV 0.075 % + 20 µV 0.12 % + 25 µV 0.25 % + 45 µV 0.022 % + 41 µV 80 µV/V + 17 µV 40 µV/V + 8.0 µV 70 µV/V + 10 µV 0.011 % + 30 µV 0.034 % + 81 µV 0.090 % + 0.20 mV 0.15 % + 0.30 mV Fluke 5730A (based on 90 day specs)

(A2LA Cert. No. 2611.01) 07/28/2025 Page 7 of 10 Parameter/Range Frequency CMC2, 7 (±) Comments AC Voltage – Generate 4, 6 (cont.) (2.2 to 22) V (22 to 220) V For the 1100 V Range: (220 to 250) V (220 to 1100) V (220 to 750) V (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (10 to 20) Hz (20 to 40) Hz 40 Hz to 20 kHz (20 to 50) kHz (50 to 100) kHz (100 to 300) kHz (300 to 500) kHz 500 kHz to 1 MHz (15 to 40) Hz 40 Hz to 1 kHz (1 to 20) kHz (20 to 30) kHz (30 to 50) kHz (50 to 100) kHz 0.022 % + 0.41 mV 80 µV/V + 0.17 mV 40 µV/V + 51 µV 70 µV/V + 0.10 mV 95 µV/V + 0.20 mV 0.026 % + 0.60 mV 0.090 % + 2.0 mV 0.13 % + 3.2 mV 0.022 % + 4.0 mV 80 µV/V + 1.7 mV 47 µV/V + 0.60 mV 75 µV/V + 1.0 mV 0.013 % + 2.5 mV 0.080 % + 16 mV 0.42 % + 40 mV 0.70 % + 80 mV 0.026 % + 16 mV 80 µV/V + 4.1 mV 0.013 % + 6.0 mV 0.036 % + 11 mV 0.036 % + 11 mV 0.13 % + 45 mV Fluke 5730A (based on 90 day specs) Fluke 5730A/5725A (based on 90 day specs) AC Voltage – Measure5, 6 (1 to 10) V (1 to 40) Hz 40 Hz to 1 kHz (1 to 20) kHz 83 µV/V + 0.46 mV 83 µV/V + 0.23 mV 0.017 % + 0.23 mV Agilent 3458A (based on 2 year specs)

(A2LA Cert. No. 2611.01) 07/28/2025 Page 8 of 10 Parameter/Equipment Frequency CMC2 (±) Comments 4 Terminal Parallel Capacitance – Generate3 1 pF 10 pF 100 pF 1000 pF 10 nF 100 nF 1 MHz 10 MHz 100 kHz 1 MHz 10 MHz 10 kHz 100 kHz 1 MHz 10 MHz 1 kHz 10 kHz 100 kHz 1 MHz 10 MHz 1 kHz 10 kHz 100 kHz 1 kHz 10 kHz 1.4 fF 7.9 fF 4.4 fF 5.4 fF 29 fF 67 fF 37 fF 20 fF 0.1 pF 9.2 pF 0.36 pF 0.19 pF 0.25 pF 2.3 pF 15 pF 2.1 pF 2.6 pF 35 pF 30 pF Set of standard capacitors from 1 pF to 100 nF 4 Terminal Parallel Conductance – Generate3 1 pF, (1 to 17) nS 1 pF, (5 to 200) nS 10 pF, (0.1 to 1.4) nS 10 pF, (2.2 to 17) nS 10 pF, (2 to 3) µS 100 pF, (1 to 22) nS 100 pF, (7.1 to 19.2) nS 100 pF, (0.26 to 122) nS 100 pF, (13 to 30) µS 1000 pF, (1.4 to 2.8) nS 1000 pF, (8 to 31) nS 1000 pF, (122 to 535) nS 1000 pF, 1.7 nS to 14.2 µS 1000 pF, (68 to 695) nS 10 nF, (0.07 to 9.6) nS 10 nF, (1.4 to 40) nS 10 nF, (67 to 324) nS 100 nF, (34.4 to 68) nS 100 nF, (111 to 404) nS 1 MHz 10 MHz 100 kHz 1 MHz 10 MHz 10 kHz 100 kHz 1 MHz 10 MHz 1 kHz 10 kHz 100 kHz 1 MHz 10 MHz 1 kHz 10 kHz 100 kHz 1 kHz 10 kHz 4.2 nS 48 nS 1.3 nS 2.4 nS 61 nS 2.5 nS 2.4 nS 16 nS 1.1 µS 41 nS 4.3 nS 24 nS 0.5 µS 44 µS 38 nS 37 nS 0.35 µS 0.70 µS 0.42 µS Keithley 4210-CVU CAL-KIT Keithley 4210-CVU CAL-KIT

(A2LA Cert. No. 2611.01) 07/28/2025 Page 9 of 10 Parameter/Equipment Frequency CMC2, 7 (±) Comments Pulse Characterization – Measure, Fixed Points 3 Overshoot Preshoot Pulse Width Settling Time RMS Jitter Slew Rate 0.5 V 2 V 5 V 20 V 20 mV 80 mV 500 ns 0 s 0 s 0.5 V/ns 0.2 V/ns 1.4 % 0.87 % 0.29 % 0.13 % 8.5 mV 35 mV 0.44 ns 2.7 ns 20 ps 0.089 V/ns 0.0083 V/ns Digital oscilloscope II. Time & Frequency Parameter/Equipment Frequency CMC 2 (±) Comments Frequency – Measuring Equipment 4, 6 Fixed Point (1 to 10) Hz 10 Hz to 1 kHz 1 kHz to 20 MHz 10 MHz 6.7 μHz/Hz 5.8 μHz/Hz 5.8 μHz/Hz 49 mHz Agilent 33220A / Spectrum TM4 GPS oscillator Spectrum TM4 ______________________________ 1 This laboratory offers commercial and field calibration service. 2 Calibration and Measurement Capability Uncertainty (C MC) is the smallest uncertainty of measurement that a laboratory can achieve within its scope of accreditation when performing more or less routine calibrations of nearly ideal measurement standards or nearly ideal measuring equipment. CMCs represent expanded uncertainties expressed at approximately the 95 % level of confidence, usually using a coverage factor of k = 2. The actual measurement uncertainty of a specific calibration performed by the laboratory may be greater than the CMC due to the behavior of the customer’s device and to influences from the circumstances of the specific calibration.

(A2LA Cert. No. 2611.01) 07/28/2025 Page 10 of 10 3 Field calibration service is available for this calibration. Please note the actual measurement uncertainties achievable on a customer's site can normally be expected to be larger than the CMC found on the A2LA Scope. Allowance must be made for aspects such as the environment at the place of calibration and for other possible adverse effects such as those caused by transportation of the calibration equipment. The usual allowance for the actual uncertainty introduced by the item being calibrated, (e.g. resolution) must also be considered and this, on its own, could result in the actual measurement uncertainty achievable on a customer’s site being larger than the CMC. 4 This capability is suitable for th e calibration of the devices intended to measure the stated measurand in the ranges indicated. CMC is expressed as either a specific value that covers the full range or as a fraction of the reading plus floor specification. 5 This capability is suitable for the calibration of th e devices intended to generate the measurand in the ranges indicated. CMC is expressed as either a specific value that covers the full range or as a combination of the fraction of the reading /output plus a range specification. 6 CMC is [µX/X of Reading] + offset (where listed) for the ranges indicated in the Parameter/Equipment column of table, where “X” equals V, Ω, A or Hz. 7 In the statement of CMC, percentages are percentages of reading, unless otherwise indicated.

For the calibrations to which this accreditation applies, please refer to the laboratory’s Calibration Scope of Accreditation. Accredited Laboratory A2LA has accredited KEITHLEY INSTRUMENTS GERMANY Germering, GERMANY for technical competence in the field of Calibration This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This laboratory also meets the requirements of R205 – Specific Requirements: Calibration Laboratory Accreditation Program. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017). Presented this 28th day of July 2025. __ _____________________ Mr. Trace McInturff, Vice President, Accreditation Services For the Accreditation Council Certificate Number 2611.01 Valid to September 30, 2027