AC/DC Current Measurement Systems
TCPA300 • TCP312 • TCP305 • TCP303 • TCPA400 • TCP404XL Data Sheet
Features & Benefits
AC/DC Measurement Capabilities
DC – 100 MHz, Current Probe Amplifier (TCPA300) uses:
DC – 100 MHz, 30 A DC (TCP312)
DC – 50 MHz, 50 A DC (TCP305)
DC – 15 MHz, 150 A DC (TCP303)
DC – 50 MHz, Current Probe Amplifier (TCPA400) Uses:
DC – 2 MHz, 750*1A DC (TCP404XL) (500 A DC Continuous)
Automatic Scaling and Units*2– Oscilloscope On-screen Readout of
Magnitude and Amps reduces Measurement Errors with No More Hand
Calculations
AC/DC Input Coupling
Low Insertion Impedance reduces Device Under Test Loading
Split-core Construction allows Easy Circuit Connection
Status Indicators provide Visual Operating Status and Notification of
Potential Error Conditions – Degauss, Probe Open, Overload, Not
Terminated into 50 Ω, Noncompatible Probe Type
Lower DC Drift and Noise allows Improved Low-level Current
Measurements
Certified for use in U.S., Canada, and Europe. Complies with applicable
IEC Standards.
Applications
Development and Analysis Solutions for Designers, Installers,
and Service Personnel in Telecomm, Data Comm, Computer, and
Semiconductor Power Electronics Environments for:
Power Supplies (Switching and Linear)
Semiconductor Devices (SCRs, IGBTs, MOSFETs, CMOS, BJTs)
Power Inverters/Converters
ElectronicBallasts
Industrial/Consumer Electronics
Mobile Communications (Phone, Satellite, Relay Stations)
Motor Drives
Transportation Systems (Electronic Vehicles, Electric Trains,
Locomotives, Avionics)
Increased Performance and Simplicity
The TCP300 and TCP400 Series AC/DC current measurement family
is a highly advanced current measurement system for today's current
measurement needs. When connected to Tektronix oscilloscopes with
TEKPROBE Level II, TekConnect (w/ TCA-BNC), or TekVPI (w/ TPA-BNC)
interfaces, current measurements and calculations are simple and easy.
*1Derated with duty cycle.
*2Requires a TDS TEKPROBE oscilloscope or a TekConnect oscilloscope with TCA-BNC.
Data Sheet
Meets Today's AC/DC Current Measurement
Applications
The TCPA300 amplifier, when used with TCP312, TCP305, or TCP303
probes, provides a wide range of current measurement capability and spans
the gap between low-level milliamp measurements to very high current
levels. These three probes provide current measurement capabilities of
30 A, 50 A, and 150 A DC continuous. For even higher current levels, the
TCPA400 amplifier with the TCP404XL current probe measures 500 A DC
continuous and 750 A DC continuous, derated with duty cycle.
Higher frequency performance is available with the TCP312 w/TCPA300
providing ≥100 MHz bandwidth and a maximum current of 30 A DC.
Measurement Errors and Manual Calculations are Now
a Thing of the Past
With this new series of current measurement tools, automatic control and
on-screen scaling and units is provided for users of Tektronix TDS3000,
TDS500, TDS600, TDS700, TDS5000, TDS6000, and TDS7000B Series
oscilloscope systems (the DPO3000, DPO4000, and DPO7000 Series
oscilloscopes, the TPA-BNC adapter is required).
The TCP300/TCP400 current measurement systems seamlessly integrate
with your TDS Series oscilloscope.
Even non-TEKPROBE systems can use the TCPA300/400 Series to make
proper current measurements by simply multiplying the measured output
voltage on the oscilloscope by the TCPA300/400 Series range setting.
Characteristics
Characteristic TCP312 w/ TCPA300 TCP305 w/ TCPA300 TCP303 w/ TCPA300 TCP404XL w/ TCPA400
Bandwidth (–3 dB) DC – 100 MHz DC – 50 MHz DC – 15 MHz DC – 2 MHz*3
Rise Time ≤3.5 ns ≤7ns ≤23 ns ≤175 ns
Maximum Current Ratings:
High-current Sensitivity Range 10 A/V Range 10 A/V Range 50 A/V Range 1 A/mV Range
DC (Continuous) 30 A 50 A 150 A 500 A (750 A*4)
RMS (Sinusoidal) 21.2 A 35.4 A 150 A 500 A
Peak Pulse 50 A 50 A 500 A 750 A
Low-current Sensitivity Range 1 A/V Range 5 A/V Range 5 A/V Range N/A
DC (Continuous) 5A 25A 25A N/A
RMS (Sinusoidal) 3.5 A 17.7 A 17.7 A N/A
Peak Pulse 50 A 50 A 500 A N/A
DC Accuracy
(Operating temp 0 °C to 50 °C)
±3% of reading ±3% of reading ±3% of reading (10 °C to 50 °C)
+3%/–6% of reading (0 °C
to <10 °C)
±3% of reading
DC Accuracy, Typical
(Operating temp 23 °C ±5 °C)
±1% of reading ±1% of reading ±1% of reading ±1% of reading
Nominal
Maximum Bare Wire Voltage For use with insulated wires only 600 VRMS CAT I & II
300 VRMS CAT III
1mA 5mA 5mA 1A
Lowest Measurable Current
(at ±3% accuracy at DC) Scope set to 1 mV/div and 20 MHz BW Limited Scope set to 1 mV/div and 20 MHz BW Limited
Insertion Impedance
(See curves below)
0.08 Ωat 1 MHz
0.15 Ωat 10 MHz
0.27 Ωat 50 MHz
0.7 Ωat 100 MHz
0.035Ωat 1 MHz
0.12 Ωat 10 MHz
0.4 Ωat 50 MHz
0.01 Ωat 1 MHz
0.025Ωat 5 MHz
0.1 Ωat 15 MHz
0.1 mΩat 10 kHz
0.6 mΩat 100 kHz
8mΩat1MHz
16 mΩat 2 MHz
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AC/DC Current Measurement Systems — TCPA300 • TCP312 • TCP305 • TCP303 • TCPA400 • TCP404XL
Characteristic TCP312 w/ TCPA300 TCP305 w/ TCPA300 TCP303 w/ TCPA300 TCP404XL w/ TCPA400
Typical
Maximum Amp-Second Product
(Based on Amplifier Range
setting)
50 A*μS–1A/V
500 A*μS–10A/V
500 A*μS–5A/V
NA–10A/V
3,000 A*μS–5A/V
15,000 A*μS–50A/V
NA – 1 A/mV
AC-coupling Low-frequency
Bandwidth
(Low Pass – 3 dB point)
<7 Hz
Displayed RMS Noise
(at 20 MHz bandwidth limit)
≤250 μARMS ≤1.25 mARMS ≤2.5 mARMS ≤250 mARMS
Signal Delay (Delay to output
BNC)
17 ns 19 ns 40 ns 80 ns
Inputs (Probe amplifier) 1
Probe Open Indicator Yes
Overload Indicator Yes
Termination Indicator Yes
Noncompatible Probe Indicator Yes
Safety Certifications
U.S. NRTL Listing UL3111-1
(Amplifier)
UL3111-2-032 ; UL3111-1
(Probe and Amplifier)
Canadian Certification CAN/CSA C22.2 No.1010.1
(Amplifier)
CAN/CSA C22.2 No.1010.2.032
CAN/CSA C22.2 No.1010.1
(Probe and Amplifier)
European Union Compliance EN61010-1/A2
(Amplifier)
EN61010-1/A2; EN61010-2-032
EN61010-1/A2
(Probe and Amplifier)
Other IEC61010-1/A2 (Amplifier) IEC61010-2-032
IEC61010-1/A2
(Probe and Amplifier)
Electromagnetic Compatibility EC Council Directive 89/336/EEC, FCC Part 15, Subpart B Class A, AS/NZS 2064.1/2.
Power Requirements
(TCPA300/TCPA400 Amplifiers)
90 V to 264 V; 47 to 440 Hz; 50 W
Maximum CAT II (Auto Switch)
Power Requirements (Probes) Requires TCPA300 Amplifier Requires TCPA400 Amplifier
Probe Model TCP312 TCP305 TCP303 TCP404XL
Warranty 1Year
Probe Mechanical Characteristics
Probe Cable Length 1.5 meters (60 inches) 2 meters (78.7 inches) 8 meters (315 inches)
Probe Jaw Size (Max conductor
size)
3.8 mm (0.15 inches) 21 mm × 25 mm (0.83 × 1.0 inches)
Length 20 cm (7.87 inches) 26.8 cm (10.55 inches) 26.8 cm (10.55 inches)
Width 1.6 cm (0.625 inches) 4.1 cm (1.60 inches) 4.1 cm (1.60 inches)
Height 3.2 cm (1.25 inches) 15.6 cm (6.13 inches) 15.6 cm (6.13 inches)
Weight 0.15 kg (0.33 lb.) 0.66 kg (1.45 lb.) 0.88 kg (1.90 lb.)
TCPA300 and TCPA400 Mechanical Characteristics
Length 17.3 cm (6.8 inches)
Width 16.7 cm (6.6 inches)
Height 9.14 cm (3.6 inches)
Weight 1.14 kg (2.5 lb.)
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Data Sheet
Characteristic TCP312 w/ TCPA300 TCP305 w/ TCPA300 TCP303 w/ TCPA300 TCP404XL w/ TCPA400
Environmental Characteristics
Temperature
Operating 0 °C to +50 °C (32 °F to 122 °F)
Nonoperating –40°Cto+75°C(–40°Fto167°F)
Humidity
Operating 5% to 95% R.H. to +30 °C (86 °F)
5% to 85% R.H. +30 °C to +50 °C (86 °F to 122 °F)
Nonoperating 5% to 95% R.H. to +30 °C (86 °F)
5% to 85% R.H. +30 °C to +75 °C (86 °F to 167 °F)
Altitude
Operating 2000 m (6800 ft.) maximum
Nonoperating 12,192 m (40,000 ft.) maximum
*3Calculatedfromrisetime.
*4Deratedw/dutycycleandfrequency.
TCP312 Typical Peak Current Frequency Derating Curve.
TCP312 Typical Insertion Impedance Curve.
TCP312 Typical Specified Operating Area Characteristics.
TCP305 Typical Peak Current Frequency Derating Curve.
TCP305 Typical Insertion Impedance Curve.
TCP305 Typical Specified Operating Area Characteristics.
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AC/DC Current Measurement Systems — TCPA300 • TCP312 • TCP305 • TCP303 • TCPA400 • TCP404XL
TCP303 Typical Peak Current Frequency Derating Curve.
TCP303 Typical Insertion Impedance Curve.
TCP303 Typical Specified Operating Area Characteristics.
TCP404XL Typical Peak Current Frequency Derating Curve.
TCP404 Typical Insertion Impedance Curve.
TCP404XL Maximum Current Measurement Time (750 A at 50 °C Ambient).
TCP404XL Maximum Current Measurement Time (600 A at 50 °C Ambient).
TCP404XL Maximum Current Measurement Time (750 A at 23 °C Ambient).
(Note: At 23 °C ambient, 600 A may be measured continuously with the TCP404XL
probe.)
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Data Sheet
Ordering Information
Probes
Product Description
TCP312 Probe; AC/DC current, DC to 100 MHz; 30 A DC (Requires
TCPA300 amplifier)
TCP305 Probe; AC/DC current, DC to 50 MHz; 50 A DC (Requires
TCPA300 amplifier)
TCP303 Probe; AC/DC current, DC to 15 MHz; 150 A DC (Requires
TCPA300 amplifier)
TCP404XL Probe; AC/DC current, DC to 2 MHz; 500 A DC (750 A DC
derated with duty cycle) (Requires TCPA400 amplifier)
All TCP300/TCP400 Current Probes Include: AC/DC current probe, instruction
sheet, probe cover, Certificate of Traceable Calibration.
Amplifiers
Product Description
TCPA300 Amplifier; AC/DC current probe, DC to 100 MHz, (Requires
TCP305 or TCP312 or TCP303 probes)
TCPA400 Amplifier; AC/DC current probe, DC to 50 MHz, (Requires
TCP404XL probe)
All TCPA300/TCPA400 Current Probe Amplifiers Include: AC/DC current probe
amplifier, instruction/service manual, TEKPROBE interface cable, Male-to-Male BNC
cable (50 Ω), 50 Ωfeedthrough termination, Certificate of Traceable Calibration.
TCPA300/TCPA400
Power Plug Options
Option Description
Opt. A0 North America power
Opt. A1 Universal Euro power
Opt. A2 United Kingdom power
Opt. A3 Australia power
Opt. A5 Switzerland power
Opt. A6 Japan power
Opt. A10 China power
Opt. A11 India power
Opt. A12 Brazil power
Opt. A99 No power cord
Language Options
Option Description
Opt. L0 English manual
Opt. L5 Japanese manual
Opt. L10Russian manual
Opt. L99No manual
Protective covers.
All TCP300/TCPA300/TCP400/TCPA400 Series
Service Options
Option Description
Opt. C3 Calibration Service 3 Years
Opt. C5 Calibration Service 5 Years
Opt. D1 Calibration Data Report
Opt. D3 Calibration Data Report 3 Years (with Option C3)
Opt. D5 Calibration Data Report 5 Years (with Option C5)
Opt. R3 Repair Service 3 Years
Opt. R5 Repair Service 5 Years
Recommended Accessories
Accessory Description
016-1923-00 Cover, Small Probe Protective; (for TCP305, TCP312,
A6302, A6302XL, A6312, TCP202)
016-1924-00 Cover, Large Probe Protective; (for TCP303, TCP404XL,
A6303, A6303XL, A6304XL)
016-1922-00 Case, Transit; Current Measurement Systems
011-0049-02 50 ΩFeedthrough Termination
012-0117-00 50 ΩBNC-to-BNC Coaxial Cable
012-1605-00 TEKPROBE Interface Cable, TCPA300 or TCPA400
Amplifier to TDS Series Oscilloscopes
015-0601-50 Current Loop, 1 Turn, 50 Ω, BNC Connector (for TCP305,
TCP312, A6302, A6302XL A6312, TCP202, TCP303, A6303,
A6303XL)
174-4765-00 TCPA300/TCPA400 Amplifier Calibration Adapter
067-1478-00 Power Measurements Deskew Fixture, for TCP202, TCP305,
TCP312, TCP303, A6302, A6312, A6303, Series Probes
Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar.
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AC/DC Current Measurement Systems — TCPA300 • TCP312 • TCP305 • TCP303 • TCPA400 • TCP404XL
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Data Sheet Contact Tektronix:
ASEAN / Australasia (65) 6356 3900
Austria 00800 2255 4835*
Balkans, Israel, South Africa and other ISE Countries +41 52 675 3777
Belgium 00800 2255 4835*
Brazil +55(11)37597627
Canada 1 800 833 9200
Central East Europe and the Baltics +41526753777
Central Europe & Greece +41 52 675 3777
Denmark +4580881401
Finland +41526
75 3777
France 00800 2255 4835*
Germany 00800 2255 4835*
Hong Kong 400 820 5835
India 000 800 650 1835
Italy 00800 2255 4835*
Japan 81 (3) 6714 3010
Luxembourg +41526753777
Mexico, Central/South America & Caribbean 52 (55) 56 04 50 90
Middle East, Asia, and North Africa +41 52 675 3777
The Netherlands 00800 2255 4835*
Norway 800 16098
People’s Republic of China 400 820 5835
Poland +41 52 675 3777
Portugal 80 08 12370
Republic of Korea 001 800 8255 2835
Russia & CIS +7 (495) 7484900
South Africa +41526753777
Spain 00800 2255 4835*
Sweden 00800 2255 4835*
Switzerland 00800 2255 4835*
Taiwan 886 (2) 2722 9622
United Kingdom & Ireland 00800 2255 4835*
USA 1 800 833 9200
* European toll-free number. If not accessible, call: +41 52 675 3777
Updated 10 February 2011
For Further Information. Tektronix maintains a comprehensive, constantly expanding
collection of application notes, technical briefs and other resources to help engineers working
on the cutting edge of technology. Please visit www.tektronix.com
Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents,
issued and pending. Information in this publication supersedes that in all previously published material.
Specification and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of
Tektronix, Inc. All other trade names referenced are the service marks, trademarks, or registered trademarks
of their respective companies.
02 Oct 2011 60W-16458-5
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