AC/DC Current Measurement Systems
TCPA300, TCP312A, TCP305A, TCP303, TCPA400, TCP404XL Datasheet
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.
Key performance specifications
DC - 100 MHz, Current Probe Amplifier (TCPA300) uses:
DC - 100 MHz, 30 A DC (TCP312A)
DC - 50 MHz, 50 A DC (TCP305A)
DC - 15 MHz, 150 A DC (TCP303)
DC - 50 MHz, Current Probe Amplifier (TCPA400) Uses:
DC - 2 MHz, 750 A DC1 (TCP404XL) (500 A DC Continuous)
1Derated with duty cycle
Key features
Automatic scaling and units2 - 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
Low DC drift and noise allows improved low-level current
measurements
3rd party safety certification
2 Requires a TDS TEKSCOPE oscilloscope or a TekConect oscilloscope
with TCA-BNC adapter
Applications
Development and analysis solutions for designers, installers, and
service personnel in telecom, data comm, computer, and
semiconductor power electronics environments for:
Power supplies (switching and linear)
Semiconductor devices (SCRs, IGBTs, MOSFETs, CMOS, BJTs)
Power inverters/converters
Electronic ballasts
Industrial/consumer electronics
Mobile communications (phone, satellite, relay stations)
Motor drives
Transportation systems (electronic vehicles, electric trains, locomotives,
avionics)
Meets today's AC/DC current measurement
applications
The TCPA300 amplifier, when used with TCP312A, TCP305A, 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 TCP312A 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, MDO/MSO/DPO4000, MSO/
DPO5000, 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.
Specifications
All specifications apply to all models unless noted otherwise.
Model overview
TCP312A w/ TCPA300 TCP305A w/ TCPA300 TCP303 w/ TCPA300 TCP404XL w/ TCPA400
Bandwidth DC – 100 MHz DC – 50 MHz DC – 15 MHz DC – 2 MHz
Rise time ≤3.5 ns ≤7 ns ≤23 ns ≤175 ns
DC accuracy ±3% of reading ±3% of reading ±3% of reading ±3% of reading
DC accuracy, typical ±1% of reading ±1% of reading ±1% of reading ±1% of reading
Lowest measurable current (at ±3%
accuracy at DC)
Scope set to 1 mV/div and 20 MHz
BW limited
1 mA 5 mA 5 mA 1 A
Maximum Amp-Second product,
typical (Based on amplifier range
setting)
50 A*μS – 1 A/V
500 A*μS – 10 A/V
500 A*μS – 5 A/V
NA – 10 A/V
3,000 A*μS – 5 A/V
15,000 A*μS – 50 A/V
NA – 1 A/mV
Maximum wire voltage, bare
insulated
150 V CAT II
300 V CAT II
150 V CAT II
300 V CAT II
600 V CAT I & II
300 V CAT III
600 V CAT I & II
300 V CAT III
AC-coupling low-frequency
Bandwidth, typical (Low pass – 3 dB
point)
<7 Hz <7 Hz <7 Hz <7 Hz
Displayed RMS noise, typical (at
20 MHz bandwidth limit)
≤250 μARMS ≤1.25 mA RMS ≤2.5 mARMS ≤250 mARMS
Signal delay (to output BNC) 17 ns 19 ns 40 ns 80 ns
Insertion impedance 0.11 Ω at 1 MHz
0.12 Ω at 10 MHz
0.35 Ω at 50 MHz
0.7 Ω at 100 MHz
0.02 Ω at 1 MHz
0.1 Ω at 10 MHz
0.35 Ω at 50 MHz
0.01 Ω at 1 MHz
0.025 Ω at 5 MHz
0.1 Ω at 15 MHz
0.1 m Ω at 10 kHz
0.6 m Ω at 100 kHz
8 m Ω at 1 MHz
16 m Ω at 2 MHz
Datasheet
2 www.tektronix.com
Characteristics
Maximum current ratings
High-current sensitivity TCP312A w/ TCPA300 TCP305A w/ TCPA300 TCP303 w/ TCPA300 TCP404XL w/ TCPA400
Range 10 A/V 10 A/V 50 A/V 1 A/mV
DC (continuous) 30 A 50 A 150 A 500 A (750 A)
RMS (sinusoidal) 21.2 A 35.4 A 150 A 500 A
Peak 50 A 50 A 500 A 750 A
Low-current sensitivity Range 1 A/V 5 A/V 5 A/V N/A
DC (continuous) 5 A 25 A 25 A N/A
RMS (sinusoidal) 3.5 A 17.7 A 17.7 A N/A
Peak 50 A 50 A 500 A N/A
Physical characteristics
Amplifiers TCPA300/TCPA400
Length 17.3 cm (6.8 in)
Width 16.7 cm (6.6 in)
Height 9.14 cm (3.6 in)
Weight 1.14 kg (2.5 lb)
Probes TCP305A/TCP312A TCP303 TCP404XL
Length 20 cm (7.77 in) 26.8 cm (10.55 in) 26.8 cm (10.55 in)
Width 6 cm (0.625 in) 4.1 cm (1.60 in) 4.1 cm (1.60 in)
Height 3.2 cm (1.25 in) 15.6 cm (6.13 in) 15.6 cm (6.13 in)
Weight 0.15 kg (0.33 lb) 0.66 kg (1.45 lb) 0.88 kg (1.90 lb)
Maximum conductor size TCP312A TCP305A TCP303 TCP404XL
5.0 mm (0.15 in) 5.0 mm (0.15 in) 21 mm x 25 mm (0.83 x 1.0 in) 21 mm x 25 mm (0.83 x 1.0 in)
Cable length 1.5 m (60 in) 1.5 m (60 in) 2 m (78.7 in) 8 m (315 in)
EMC environment and safety
U.S. NRTL listing TCP312A/305A probe and amplifier Amplifiers TCP303/404XL probe and amplifier
UL61010-2-032, UL61010-1 UL3111-1, first edition UL3111-2-032, UL3111-2-031; UL3111-1
Canadian certification CAN/CSA C22.2 No. 61010-1, CAN/CSA
C22.2 No. 61010-2-032
CAN/CSA C22.2 No.1010.1-92 CAN/CSA C22.2 No.1010.1-92
European Union compliance EN61010-1, EN61010-2-032 EN61010-1:2001 EN61010-1/A2, EN61010-2-031,
EN61010-2-032
Other IEC61010-1/A2 IEC61010-2-032
Electromagnetic compatibility EC Council Directive 89/336/EEC, FCC
Part 15, Subpart B Class A, AS/NZS
2064.1/2.
AC/DC Current Measurement Systems
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Temperature
Operating 0 °C to +50 °C (32 °F to 122 °F)
Nonoperating -40 °C to +75 °C (-40 °F to 167 °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
Ordering information
Models
Probes
TCP312A Probe AC/DC current, DC to 100 MHz; 30 A DC (Requires TCPA300 amplifier)
TCP305A 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)
Amplifiers
TCPA300 Amplifier AC/DC current probe, DC to 100 MHz, (Requires TCP305A or TCP312A or TCP303 probes)
TCPA400 Amplifier AC/DC current probe, DC to 50 MHz, (Requires TCP404XL probe)
Recommended accessories
Cover, large probe protective; (for
TCP303, TCP404XL)
016-1924-00
Case, transit; current
measurement systems
016-1922-00
50 Ω feedthrough termination 011-0049-02
50 Ω BNC-to-BNC coaxial cable 012-0117-00
TEKPROBE interface cable,
TCPA300 or TCPA400 amplifier to
TDS series oscilloscopes
012-1605-00
Current loop, 1 turn, 50 Ω, BNC
connector (for TCP305A, TCP312A,
TCP202A)
067-2396-00
Current loop, 1 turn, 50 Ω, BNC
connector (for TCP303, TCP404XL)
015-0601-50
Datasheet
4 www.tektronix.com
TCPA300/TCPA400 amplifier
calibration adapter
174-4765-00
Power measurements deskew
fixture for TCP202A, TCP305A,
TCP312A, TCP303 probes
067-1478-00
Warranty
One year parts and labor.
Power requirements
Amplifiers 90 V to 264 V, 47 to 440 Hz, 50 W; Maximum CAT II (auto switch)
Probes TCP312A, TCP305A, TCP303 probes require a TCPA300 Amplifier; TCP404XL probe requires a TCPA400 Amplifier
Options
Power plug options
Opt. A0 North America power plug (115 V, 60 Hz)
Opt. A1 Universal Euro power plug (220 V, 50 Hz)
Opt. A2 United Kingdom power plug (240 V, 50 Hz)
Opt. A3 Australia power plug (240 V, 50 Hz)
Opt. A5 Switzerland power plug (220 V, 50 Hz)
Opt. A6 Japan power plug (100 V, 110/120 V, 60 Hz)
Opt. A10 China power plug (50 Hz)
Opt. A11 India power plug (50 Hz)
Opt. A12 Brazil power plug (60 Hz)
Opt. A99 No power cord
ServiceOptions
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 Opt. C3)
Opt. D5 Calibration Data Report 5 Years (with Opt. C5)
Opt. R3 Repair Service 3 Years (including warranty)
Opt. R3DW Repair Service Coverage 3 Years (includes product warranty period). 3-year period starts at time of instrument purchase
Opt. R5 Repair Service 5 Years (including warranty)
Opt. R5DW Repair Service Coverage 5 Years (includes product warranty period). 5-year period starts at time of instrument purchase
Opt. SILV400 Standard warranty extended to 5 years (TCP305A, TCP312A, TCPA300, TCPA400 )
Opt. SILV600 Standard warranty extended to 5 years (TCP303, TCP404XL)
AC/DC Current Measurement Systems
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Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar.
Datasheet
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Republic of Korea 001 800 8255 2835 Russia & CIS +7 (495) 6647564 South Africa +41 52 675 3777
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 April 2013
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.
12 Apr 2013 60W-16458-7
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