AC/DC Current Measurement Systems
TCPA300, TCP312A, TCP305A, TCP303, TCPA400, TCP404XL Datasheet
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)
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.
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)
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:
1
Derated
DC - 2 MHz, 750 A DC
1
(TCP404XL) (500 A DC Continuous)
with duty cycle
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.
Key features
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
Datasheet
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
Bandwidth
Rise time
DC accuracy
DC accuracy, typical
Lowest measurable current (at ±3%
accuracy at DC)
Scope set to 1 mV/div and 20 MHz
BW limited
Maximum Amp-Second product,
typical (Based on amplifier range
setting)
Maximum wire voltage, bare
insulated
AC-coupling low-frequency
Bandwidth, typical (Low pass – 3 dB
point)
Displayed RMS noise, typical (at
20 MHz bandwidth limit)
Signal delay (to output BNC)
Insertion impedance
DC – 100 MHz
≤3.5 ns
±3% of reading
±1% of reading
1 mA
TCP305A w/ TCPA300
DC – 50 MHz
≤7 ns
±3% of reading
±1% of reading
5 mA
TCP303 w/ TCPA300
DC – 15 MHz
≤23 ns
±3% of reading
±1% of reading
5 mA
TCP404XL w/ TCPA400
DC – 2 MHz
≤175 ns
±3% of reading
±1% of reading
1A
50 A*μS – 1 A/V
500 A*μS – 10 A/V
150 V CAT II
300 V CAT II
<7 Hz
500 A*μS – 5 A/V
NA – 10 A/V
150 V CAT II
300 V CAT II
<7 Hz
3,000 A*μS – 5 A/V
15,000 A*μS – 50 A/V
600 V CAT I & II
300 V CAT III
<7 Hz
NA – 1 A/mV
600 V CAT I & II
300 V CAT III
<7 Hz
≤250 μA
RMS
17 ns
0.11 Ω at 1 MHz
0.12 Ω at 10 MHz
0.35 Ω at 50 MHz
0.7 Ω at 100 MHz
≤1.25 mA
RMS
19 ns
0.02 Ω at 1 MHz
0.1 Ω at 10 MHz
0.35 Ω at 50 MHz
≤2.5 mA
RMS
40 ns
0.01 Ω at 1 MHz
0.025 Ω at 5 MHz
0.1 Ω at 15 MHz
≤250 mA
RMS
80 ns
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
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AC/DC Current Measurement Systems
Characteristics
Maximum current ratings
High-current sensitivity
Range
DC (continuous)
RMS (sinusoidal)
Peak
Low-current sensitivity
Range
DC (continuous)
RMS (sinusoidal)
Peak
TCP312A w/ TCPA300
10 A/V
30 A
21.2 A
50 A
1 A/V
5A
3.5 A
50 A
TCP305A w/ TCPA300
10 A/V
50 A
35.4 A
50 A
5 A/V
25 A
17.7 A
50 A
TCP303 w/ TCPA300
50 A/V
150 A
150 A
500 A
5 A/V
25 A
17.7 A
500 A
TCP404XL w/ TCPA400
1 A/mV
500 A (750 A)
500 A
750 A
N/A
N/A
N/A
N/A
Physical characteristics
Amplifiers
TCPA300/TCPA400
Length
Width
Height
Weight
Probes
Length
Width
Height
Weight
Maximum conductor size
TCP312A
5.0 mm (0.15 in)
Cable length
1.5 m (60 in)
TCP305A/TCP312A
20 cm (7.77 in)
6 cm (0.625 in)
3.2 cm (1.25 in)
0.15 kg (0.33 lb)
TCP305A
5.0 mm (0.15 in)
1.5 m (60 in)
17.3 cm (6.8 in)
16.7 cm (6.6 in)
9.14 cm (3.6 in)
1.14 kg (2.5 lb)
TCP303
26.8 cm (10.55 in)
4.1 cm (1.60 in)
15.6 cm (6.13 in)
0.66 kg (1.45 lb)
TCP303
TCP404XL
26.8 cm (10.55 in)
4.1 cm (1.60 in)
15.6 cm (6.13 in)
0.88 kg (1.90 lb)
TCP404XL
21 mm x 25 mm (0.83 x 1.0 in) 21 mm x 25 mm (0.83 x 1.0 in)
2 m (78.7 in)
8 m (315 in)
EMC environment and safety
U.S. NRTL listing
TCP312A/305A probe and amplifier
UL61010-2-032, UL61010-1
Canadian certification
CAN/CSA C22.2 No. 61010-1, CAN/CSA
C22.2 No. 61010-2-032
EN61010-1, EN61010-2-032
Amplifiers
UL3111-1, first edition
CAN/CSA C22.2 No.1010.1-92
TCP303/404XL probe and amplifier
UL3111-2-032, UL3111-2-031; UL3111-1
CAN/CSA C22.2 No.1010.1-92
European Union compliance
EN61010-1:2001
EN61010-1/A2, EN61010-2-031,
EN61010-2-032
IEC61010-2-032
Other
Electromagnetic compatibility
IEC61010-1/A2
EC Council Directive 89/336/EEC, FCC
Part 15, Subpart B Class A, AS/NZS
2064.1/2.
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Datasheet
Temperature
Operating
Nonoperating
Humidity
Operating
Nonoperating
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)
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)
0 °C to +50 °C (32 °F to 122 °F)
-40 °C to +75 °C (-40 °F to 167 °F)
Altitude
Operating
Nonoperating
2000 m (6800 ft.) maximum
12,192 m (40,000 ft.) maximum
Ordering information
Models
Probes
TCP312A Probe
TCP305A Probe
TCP303 Probe
TCP404XL Probe
Amplifiers
TCPA300 Amplifier
TCPA400 Amplifier
AC/DC current probe, DC to 100 MHz, (Requires TCP305A or TCP312A or TCP303 probes)
AC/DC current probe, DC to 50 MHz, (Requires TCP404XL probe)
AC/DC current, DC to 100 MHz; 30 A DC (Requires TCPA300 amplifier)
AC/DC current, DC to 50 MHz; 50 A DC (Requires TCPA300 amplifier)
AC/DC current, DC to 15 MHz; 150 A DC (Requires TCPA300 amplifier)
AC/DC current, DC to 2 MHz; 500 A DC (750 A DC derated with duty cycle) (Requires TCPA400 amplifier)
Recommended accessories
Cover, large probe protective; (for
TCP303, TCP404XL)
Case, transit; current
measurement systems
50 Ω feedthrough termination
50 Ω BNC-to-BNC coaxial cable
TEKPROBE interface cable,
TCPA300 or TCPA400 amplifier to
TDS series oscilloscopes
016-1924-00
016-1922-00
011-0049-02
012-0117-00
012-1605-00
Current loop, 1 turn, 50 Ω, BNC
067-2396-00
connector (for TCP305A, TCP312A,
TCP202A)
Current loop, 1 turn, 50 Ω, BNC
015-0601-50
connector (for TCP303, TCP404XL)
4 www.tektronix.com
AC/DC Current Measurement Systems
TCPA300/TCPA400 amplifier
calibration adapter
Power measurements deskew
fixture for TCP202A, TCP305A,
TCP312A, TCP303 probes
174-4765-00
067-1478-00
Warranty
One year parts and labor.
Power requirements
Amplifiers
Probes
90 V to 264 V, 47 to 440 Hz, 50 W; Maximum CAT II (auto switch)
TCP312A, TCP305A, TCP303 probes require a TCPA300 Amplifier; TCP404XL probe requires a TCPA400 Amplifier
Options
Power plug options
Opt. A0
Opt. A1
Opt. A2
Opt. A3
Opt. A5
Opt. A6
Opt. A10
Opt. A11
Opt. A12
Opt. A99
North America power plug (115 V, 60 Hz)
Universal Euro power plug (220 V, 50 Hz)
United Kingdom power plug (240 V, 50 Hz)
Australia power plug (240 V, 50 Hz)
Switzerland power plug (220 V, 50 Hz)
Japan power plug (100 V, 110/120 V, 60 Hz)
China power plug (50 Hz)
India power plug (50 Hz)
Brazil power plug (60 Hz)
No power cord
ServiceOptions
Opt. C3
Opt. C5
Opt. D1
Opt. D3
Opt. D5
Opt. R3
Opt. R3DW
Opt. R5
Opt. R5DW
Opt. SILV400
Opt. SILV600
Calibration Service 3 Years
Calibration Service 5 Years
Calibration Data Report
Calibration Data Report 3 Years (with Opt. C3)
Calibration Data Report 5 Years (with Opt. C5)
Repair Service 3 Years (including warranty)
Repair Service Coverage 3 Years (includes product warranty period). 3-year period starts at time of instrument purchase
Repair Service 5 Years (including warranty)
Repair Service Coverage 5 Years (includes product warranty period). 5-year period starts at time of instrument purchase
Standard warranty extended to 5 years (TCP305A, TCP312A, TCPA300, TCPA400 )
Standard warranty extended to 5 years (TCP303, TCP404XL)
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