Current transducer CASR series
IP N = 6, 15, 25, 50 A
Ref: CASR 6-NP, CASR 15-NP, CASR 25-NP, CASR 50-NP
For the electronic measurement of current: DC, AC, pulsed..., with galvanic separation
between the primary and the secondary circuit.
Features
Applications
●● Closed loop (compensated) multi-range current transducer
●● AC variable speed and servo motor drives
●● Voltage output
●● Static converters for DC motor drives
●● Single supply
●● Battery supplied applications
●● Insulated plastic case material recognized according to
UL 94-V0
●● Switched Mode Power Supplies (SMPS)
●● Compact design for PCB mounting.
●● Uninterruptible Power Supplies (UPS)
●● Power supplies for welding applications
Advantages
●● Solar inverters.
●● Very low temperature coefficient of offset
Standards
●● Very good dv/dt immunity
●● EN 50178: 1997
●● LTSR compatible footprint
●● IEC 60950-1: 2006
●● Reduced height
●● Reference pin with two modes: Ref IN and Ref OUT
●● Extended measuring range for unipolar measurement.
●● IEC 61010-1: 2010
●● IEC 61326-1: 2012
●● UL 508: 2013.
Application Domains
●● Industrial
●● Automotive (list of additional tests available at
●●
LEM_Auto_Tech_Support@lem.com).
N°97.E6.09.000.7, N°97.E6.15.000.7, N°97.E6.19.000.7, N°97.E6.25.000.7
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CASR SERIES
Absolute maximum ratings
Parameter
Symbol
Unit
Value
Maximum supply voltage
UC max
V
7
Maximum primary conductor temperature
TB max
°C
110
Maximum steady state primary current
IP max
A
20 × IP N
UESD max
kV
4
Maximum ESD rating, Human Body Model (HBM)
Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may
degrade reliability.
UL 508: Ratings and assumptions of certification
File # E189713 Volume: 2 Section: 1
Standards
●● UL 508 STANDARD FOR INDUSTRIAL CONTROL EQUIPMENT - Edition 17
●● CSA C22.2 NO. 14-10 INDUSTRIAL CONTROL EQUIPMENT - Edition 11
Ratings
Parameter
Symbol
Primary involved potential
Unit
Value
V AC/DC
600
Max surrounding air temperature
TA
°C
105
Primary current
IP
A
According to series primary
currents
Secondary supply voltage
UC
V DC
5
Output voltage
Vout
V
0 to 5
Conditions of acceptability
When installed in the end-use equipment, consideration shall be given to the following:
1 -
These devices must be mounted in a suitable end-use enclosure.
4 -
CASR series intended to be mounted on the printed circuit wiring board of the end-use equipment (with a minimum
CTI of 100).
5 -
CASR series shall be used in a pollution degree 2.
8 -
Low voltage circuits are intended to be powered by a circuit derived from an isolating source (such as transformer,
optical isolator, limiting impedance or electro-mechanical relay) and having no direct connection back to the primary
circuit (other than through the grounding means).
11 -
CASR series: based on results of temperature tests, in the end-use application, a maximum of 100 °C cannot be
exceeded at soldering joint between primary coil pin and soldering point (corrected to the appropriate evaluated max.
surrounding air).
Marking
Only those products bearing the UL or UR Mark should be considered to be Listed or Recognized and covered under UL's FollowUp Service. Always look for the Mark on the product.
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CASR SERIES
Insulation coordination
Parameter
Symbol
Unit
Value
RMS voltage for AC insulation test, 50 Hz, 1 min
Ud
kV
4.1
Impulse withstand voltage 1.2/50 µs
ÛW
kV
7.5
Partial discharge extinction RMS voltage @ 10 pC
Ue
V
1000
Clearance distance (pri. - sec.)
dCI
mm
7.5
Shortest distance through
air
Creepage distance (pri. - sec.)
dCp
mm
7.5
Shortest path along device
body
Creepage distance (pri. .- sec.)
dCp
mm
6.2
When mounted on PCB with
recommended layout
Comparative tracking index
CTI
Comment
600
Application example
-
-
300 V CAT III
PD2
Reinforced insulation, non
uniform field according to
EN 50178, EN 61010
Application example
-
-
600 V CAT III
PD2
Basic insulation, non
uniform field according to
EN 50178, EN 61010
According to UL 508:
primary potential involved in Volts RMS AC or DC
-
V
600
Symbol
Unit
Min
Ambient operating temperature
TA
°C
−40
105
Ambient storage temperature
TS
°C
−55
105
Mass
m
g
For use in a pollution
degree 2 environment
Environmental and mechanical characteristics
Parameter
Typ
Max
Comment
9
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CASR SERIES
Electrical data CASR 6-NP
At TA = 25 °C, UC = +5 V, NP = 1 turn, RL = 10 kΩ, internal reference, unless otherwise noted (see Min, Max, typ. definition
paragraph in page 13).
Parameter
Symbol
Unit
Primary nominal RMS current
IP N
A
Primary current, measuring range
IP M
A
Number of primary turns
NP
-
Supply voltage
UC
V
Current consumption
IC
mA
Reference voltage @ IP = 0 A
Vref
V
2.495
External reference voltage
Vref
V
0
4
Output voltage
Vout
V
0.375
4.625
Output voltage @ IP = 0 A
Vout
V
Electrical offset voltage
VO E
mV
−5.3
5.3
100 % tested
Vout − Vref
Electrical offset current referred to
primary
IO E
mA
−51
51
100 % tested
Temperature coefficient of Vref
TCVref
ppm/K
±5
±50
Internal reference
Temperature coefficient of Vout
@ IP = 0 A
TCVout
ppm/K
±6
±14
ppm/K of 2.5 V
−40 °C … 105 °C
Theoretical sensitivity
Gth
mV/A
104.2
Sensitivity error
εG
%
TCG
ppm/K
εL
% of IP N
−0.1
0.1
Magnetic offset current @ IP = 0 and
specified RM, after an overload
of 10 × IP N
IO M
A
−0.1
0.1
Output rms current noise spectral
density 100 Hz … 100 kHz referred to
primary
Ino
µA/Hz½
20
Peak-peak output ripple at oscillator
frequency f = 450 kHz (typ.)
-
mV
40
Reaction time @ 10 % of IP N
tra
Response time @ 90 % of IP N
Temperature coefficient of G
Linearity error
Min
Typ
Max
Comment
6
−20
20
1, 2, 3
4.75
5
15 +
IP (mA)
NS
2.5
5.25
20 +
IP (mA)
NS = 1731 turns
NS
2.505
Internal reference
Vref
−0.7
625 mV/IP N
0.7
100 % tested
±40
−40 °C … 105 °C
RL = 1 kΩ
160
RL = 1 kΩ
µs
0.3
RL = 1 kΩ
di/dt = 18 A/µs
tr
µs
0.3
RL = 1 kΩ
di/dt = 18 A/µs
Frequency bandwidth (±1 dB)
BW
kHz
200
RL = 1 kΩ
Frequency bandwidth (±3 dB)
BW
kHz
300
RL = 1 kΩ
Overall accuracy
XG
% of IP N
1.7
Overall accuracy @ TA = 85 °C (105 °C)
XG
% of IP N
2.2 (2.4)
Accuracy
X
% of IP N
0.8
Accuracy @ TA = 85 °C (105 °C)
X
% of IP N
1.4 (1.6)
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CASR SERIES
Electrical data CASR 15-NP
At TA = 25 °C, UC = +5 V, NP = 1 turn, RL = 10 kΩ, internal reference, unless otherwise noted (see Min, Max, typ. definition
paragraph in page 13).
Parameter
Symbol
Unit
Primary nominal RMS current
IP N
A
Primary current, measuring range
IP M
A
Number of primary turns
NP
-
Supply voltage
UC
V
Current consumption
IC
mA
Reference voltage @ IP = 0 A
Vref
V
2.495
External reference voltage
Vref
V
0
4
Output voltage
Vout
V
0.375
4.625
Output voltage @ IP = 0 A
Vout
V
Electrical offset voltage
VO E
mV
−2.21
2.21
100 % tested
Vout − Vref
Electrical offset current referred to
primary
IO E
mA
−53
53
100 % tested
Temperature coefficient of Vref
TCVref
ppm/K
±5
±50
Internal reference
Temperature coefficient of Vout
@ IP = 0 A
TCVOUT
ppm/K
±2.3
±6
ppm/K of 2.5 V
−40 °C … 105 °C
Theoretical sensitivity
Gth
mV/A
41.67
Sensitivity error
εG
%
TCG
ppm/K
εL
% of IP N
−0.1
0.1
Magnetic offset current
@ IP = 0 and specified RM, after an
overload of 10 × IP N
IO M
A
−0.1
0.1
Output rms current noise spectral
density 100 Hz … 100 kHz referred
to primary
Ino
µA/Hz½
20
Peak-peak output ripple at oscillator
frequency f = 450 kHz (typ.)
-
mV
15
Reaction time @ 10 % of IP N
tra
Response time @ 90 % of IP N
Temperature coefficient of G
Linearity error
Min
Typ
Max
Comment
15
−51
51
1, 2, 3
4.75
5
15 +
IP (mA)
NS
2.5
5.25
20 +
IP (mA)
NS
2.505
NS = 1731 turns
Internal reference
Vref
−0.7
625 mV/IP N
0.7
100 % tested
±40
−40 °C … 105 °C
RL = 1 kΩ
60
RL = 1 kΩ
µs
0.3
RL = 1 kΩ
di/dt = 44 A/µs
tr
µs
0.3
RL = 1 kΩ
di/dt = 44 A/µs
Frequency bandwidth (±1 dB)
BW
kHz
200
RL = 1 kΩ
Frequency bandwidth (±3 dB)
BW
kHz
300
RL = 1 kΩ
Overall accuracy
XG
% of IP N
1.2
Overall accuracy @ TA = 85 °C (105
°C)
XG
% of IP N
1.5 (1.7)
Accuracy
X
% of IP N
0.8
Accuracy @ TA = 85 °C (105 °C)
X
% of IP N
1.2 (1.3)
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CASR SERIES
Electrical data CASR 25-NP
At TA = 25 °C, UC = +5 V, NP = 1 turn, RL = 10 kΩ, internal reference, unless otherwise noted (see Min, Max, typ. definition
paragraph in page 13).
Parameter
Max
Comment
Unit
Primary nominal RMS current
IP N
A
Primary current, measuring range
IP M
A
Number of primary turns
NP
-
Supply voltage
UC
V
Current consumption
IC
mA
Reference voltage @ IP = 0 A
Vref
V
2.495
External reference voltage
Vref
V
0
4
Output voltage
Vout
V
0.375
4.625
Output voltage @ IP = 0 A
Vout
V
Electrical offset voltage
VO E
mV
−1.35
1.35
100 % tested
Vout − Vref
Electrical offset current referred to
primary
IO E
mA
−54
54
100 % tested
Temperature coefficient of Vref
TCVref
ppm/K
±5
±50
Internal reference
Temperature coefficient of Vout
@ IP = 0 A
TCVout
ppm/K
±1.4
±4
ppm/K of 2.5 V
−40 °C … 105 °C
Theoretical sensitivity
Gth
mV/A
25
Sensitivity error
εG
%
TCG
ppm/K
εL
% of IP N
−0.1
0.1
Magnetic offset current
@ IP = 0 and specified RM, after an
overload of 10 × IP N
IO M
A
−0.1
0.1
Output rms current noise spectral
density 100 Hz … 100 kHz referred to
primary
Ino
µA/Hz½
20
Peak-peak output ripple at oscillator
frequency f = 450 kHz (typ.)
-
mV
10
Reaction time @ 10 % of IP N
tra
Response time @ 90 % of IP N
Temperature coefficient of G
Linearity error
Min
Typ
Symbol
25
−85
85
1, 2, 3
4.75
5
15 +
IP (mA)
NS
2.5
5.25
20 +
IP (mA)
NS
2.505
NS = 1731 turns
Internal reference
Vref
−0.7
625 mV/IP N
0.7
100 % tested
±40
−40 °C … 105 °C
RL = 1 kΩ
40
RL = 1 kΩ
µs
0.3
RL = 1 kΩ
di/dt = 68 A/µs
tr
µs
0.3
Frequency bandwidth (±1 dB)
BW
kHz
200
RL = 1 kΩ
Frequency bandwidth (±3 dB)
BW
kHz
300
RL = 1 kΩ
Overall accuracy
XG
% of IP N
1
Overall accuracy @ TA = 85 °C (105
°C)
XG
% of IP N
1.35 (1.45)
Accuracy
X
% of IP N
0.8
Accuracy @TA = 85 °C (105 °C)
X
% of IP N
1.15 (1.25)
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RL = 1 kΩ
di/dt = 68 A/µs
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CASR SERIES
Electrical data CASR 50-NP
At TA = 25 °C, UC = +5 V, NP = 1 turn, RL = 10 kΩ, internal reference, unless otherwise noted (see Min, Max, typ. definition
paragraph in page 13).
Parameter
Max
Comment
Unit
Primary nominal RMS current
IP N
A
Primary current, measuring range
IP M
A
Number of primary turns
NP
-
Supply voltage
UC
V
Current consumption
IC
mA
Reference voltage @ IP = 0 A
Vref
V
2.495
External reference voltage
Vref
V
0
4
Output voltage
Vout
V
0.375
4.625
Output voltage @ IP = 0 A
Vout
V
Electrical offset voltage
VO E
mV
−0.725
0.725
100 % tested
Vout − Vref
Electrical offset current referred to
primary
IO E
mA
−58
58
100 % tested
Temperature coefficient of Vref
TCVref
ppm/K
±5
±50
Internal reference
Temperature coefficient of Vout
@ IP = 0 A
TCVout
ppm/K
±0.7
±3
ppm/K of 2.5 V
−40 °C … 105 °C
Theoretical sensitivity
Gth
mV/A
12.5
Sensitivity error
εG
%
TCG
ppm/K
εL
% of IP N
−0.1
0.1
Magnetic offset current (10 × IP N)
referred to primary
IO M
A
−0.1
0.1
Output rms current noise spectral
density 100 Hz … 100 kHz referred
to primary
Ino
µA/Hz½
20
Peak-peak output ripple at
oscillator frequency = 450 kHz
(Typ.)
-
mV
5
Reaction time @ 10 % of IP N
tra
Response time @ 90 % of IP N
Temperature coefficient of G
Linearity error
Min
Typ
Symbol
50
−150
150
1,2,3
4.75
5
15 +
IP (mA)
NS
2.5
5.25
20 +
IP (mA)
NS
2.505
NS = 966 turns
Internal reference
Vref
−0.7
625 mV/IP N
0.7
100 % tested
±40
−40 °C … 105 °C
RL = 1 kΩ
20
RL = 1 kΩ
µs
0.3
RL = 1 kΩ
di/dt = 100 A/µs
tr
µs
0.3
RL = 1 kΩ
di/dt = 100 A/µs
Frequency bandwidth (±1 dB)
BW
kHz
200
RL = 1 kΩ
Frequency bandwidth (±3 dB)
BW
kHz
300
RL = 1 kΩ
Overall accuracy
XG
% of IP N
0.9
Overall accuracy @ TA = 85 °C
(105 °C)
XG
% of IP N
1.2 (1.3)
Accuracy
X
% of IP N
0.8
Accuracy @ TA = 85 °C (105 °C)
X
% of IP N
1.1 (1.3)
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CASR SERIES
0
-0.05
-0.1
-6
0
I P (A)
Figure 1: Linearity error
1000
10000 100000 1000000
Frequency (Hz)
Figure 2: Frequency response
3.2
7
3.2
6
3.1
6
3.1
3.0
5
3.0
2.9
4
IP = 6 A
3
2.8
I P (A)
4
V out (V)
7
5
I P (A)
Relative
Sensitivity
Phase
100
6
3
2.8
IP
2.7
2.6
1
V out
2.6
0
2.5
0
2.5
-1
2.4
-1
2.4
1
0
0.5
1
1.5
2.7
-2
2
0
2
4
6
8
10
t (µs)
Figure 3: Step response
Figure 4: Step response
10000
Primary Voltage V P (V)
800
1000
100
10
3.6
600
3.4
400
3.2
200
0
ref
-400
1
-600
0.1
3.0
20 kV/μs
-200
Vp
V out
V ref
2.8
2.6
-800
1.E+1 1.E+2 1.E+3 1.E+4 1.E+5 1.E+6 1.E+7
Frequency (Hz)
Figure 5: Input referred ouput noise current spectral density
V out (V)
IP
V out
t (µs)
½
2.9
IP = 6 A
2
2
-0.5
ino (μA/Hz )
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
IP = 6 A
V out (V)
0.05
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
Phase (°)
0.1
Relative Sensitivity (dB)
Linearity error (% of I PN)
Typical performance characteristics CASR 6-NP
2.4
-1
0
1
2
3
4
5
t (µs)
Figure 6: dv/dt
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CASR SERIES
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-0.05
-0.1
-15
0
I P (A)
15
Relative
Sensitivity
Phase
100
Figure 7: Linearity error
1000
10000 100000 1000000
Frequency (Hz)
Figure 8: Frequency response
17.5
3.2
15
3.1
15
3.1
12.5
3.0
12.5
3.0
2.9
10
I P (A)
10
I P = 15 A
7.5
5
2.5
2.8
V out
2.6
2.5
2.5
0
2.4
-2.5
-2.5
0
0.5
1
5
2.7
1.5
2.6
2.4
0
2
4
6
8
10
t (µs)
Figure 10: Step response
10000
Primary Voltage V P (V)
800
1000
Iinono (μA/Hz½)
2.7
2.5
t (µs)
Figure 9: Step response
2.8
IP
V out
-2
2
2.9
I P = 15 A
7.5
IP
0
-0.5
I P (A)
3.2
V out (V)
17.5
100
10
3.6
600
3.4
400
3.2
200
0
3.0
20 kV/μs
-200
Vp
V out
V ref
-400
1
2.8
2.6
-600
0.1
1.E+1 1.E+2 1.E+3 1.E+4 1.E+5 1.E+6 1.E+7
Frequency (Hz)
Figure 11: Input referred ouput noise current spectral density
V out (V)
0
V out (V)
0.05
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
I P = 15 A
Phase (°)
0.1
Relative Sensitivity (dB)
Linearity error (% of I PN)
Typical performance characteristics CASR 15-NP
-800
2.4
-1
0
1
2
3
4
5
t (µs)
Figure 12: dv/dt
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CASR SERIES
Relative Sensitivity (dB)
0
-0.05
-0.1
-25
0
25
Relative
Sensitivity
Phase
100
1000
10000 100000 1000000
Frequency (Hz)
I P (A)
Figure 13: Linearity error
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
I P = 25 A
Figure 14: Frequency response
29.2
3.2
25.0
3.1
25.0
3.1
20.8
3.0
20.8
3.0
2.9
16.7
16.7
I P (A)
I P = 25 A
12.5
2.8
IP
V out
8.3
4.2
2.7
I P (A)
3.2
V out (V)
29.2
12.5
2.6
2.9
I P = 25 A
2.8
8.3
IP
2.7
4.2
V out
2.6
0.0
2.5
0.0
2.5
-4.2
2.4
-4.2
2.4
-0.5
0
0.5
1
1.5
2
-2
0
2
t (µs)
6
8
10
t (µs)
Figure 15: Step response
Figure 16: Step response
800
Primary Voltage V P (V)
10000
1000
Iinono (μA/Hz½)
4
100
10
3.6
600
3.4
400
3.2
200
0
3.0
20 kV/μs
-200
VP
V out
V ref
-400
1
-600
2.8
2.6
-800
0.1
1.E+1 1.E+2 1.E+3 1.E+4 1.E+5 1.E+6 1.E+7
2.4
-1
0
Frequency (Hz)
Figure 17: Input referred ouput noise current spectral density
V out (V)
0.05
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
V out (V)
Linearity error (% of I PN)
0.1
Phase (°)
Typical performance characteristics CASR 25-NP
1
2
3
4
5
t (µs)
Figure 18: dv/dt
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CASR SERIES
Typical performance characteristics CASR 50-NP
Relative Sensitivity (dB)
-0.05
-0.1
-50
0
Relative
Sensitivity
Phase
100
50
I P (A)
Figure 19: Linearity error
1000
10000 100000 1000000
Frequency (Hz)
Figure 20: Frequency response
58.3
3.2
50.0
3.1
50.0
3.1
41.7
3.0
41.7
3.0
2.9
33.3
25.0
2.8
25.0
16.7
IP
2.7
8.3
V out
2.6
8.3
2.5
0.0
2.4
-8.3
-8.3
-0.5
0
0.5
1
1.5
2
VoutI
16.7
2
4
10000
800
Primary Voltage VVpP (V)
Figure 22: Step response
Iinono (μA/Hz½)
10
6
8
10
3.6
600
3.4
400
3.2
200
0
Vp
VP
Vout
VOUT
VREF
Vref
-400
-600
0.1
1.E+1 1.E+2 1.E+3 1.E+4 1.E+5 1.E+6 1.E+7
2.8
2.6
-800
2.4
-1
0
Frequency (Hz)
Figure 23: Input referred ouput noise current spectral density
3.0
20 kV/μs
-200
1
2.6
t (µs)
Figure 21: Step response
100
2.7
2.4
0
t (µs)
1000
2.8
IP
V out
2.5
-2
I
0.0
2.9
IP = 50 A
V
I P (A)
I P = 50 A
I P (A)
33.3
V out (V)
3.2
58.3
V out (V)
0
VOUT (V)
Linearity error (% of I PN)
0.05
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
I P = 50 A
Phase (°)
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
0.1
1
2
3
4
5
t (µs)
Figure 24: dv/dt
Page 11/19
19May2017/version 9
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
CKSR
series
CKSR
series
CASR SERIES
CKSR series
CKSR series
Maximum
continuous
DC primary
current
Maximum
continuous
DC primary
current
Maximum continuous DC primary current
40
Maximum40
continuous
DC primary
Maximum
continuous
DCcurrent
primary current
30
25
25
20
20
I P (A)
15
20
I P (A)
(A)
P
25
I P (A)I
30
15
10
10
15
70
30
60
25
20
15
50
0 5
200
0
0
20
0
50
40
30
5 10
105
0
CASR 6-NP CASR 6-NP
35
20
20
40
40
60
60
80
80
100
30
20
70
50
60
40
50
30
40
20
30
10
10
0
CASR 15-NPCASR 15-NP
80
60
40
0
120 0
C) 80
20
60
T A (° 40
C)
60
80T A (°
100
120 100
040
90
70
50
10
120
100
120
CASR 15-NP
CASR 15-NP
80
80
90 70
80 60
I P (A)I P (A)
30
35
CASR 6-NP
CASR 6-NP
40
I P (A)
35
I P (A)
35
40
90
90
20
0
0
200
10
20
0
040
T (° C)
T (° C)
20
40
40
60
60
80
80
100
100
120
T A (° C)
(° C)60
20
80
60 T40
100
120 100
A80
T (° C)
120
120
T (° C)
Figure
vs TAA for6-NP
CKSR A6-NP
Figure
vs ATA for15-NP
CKSR 15-NP
Figure 25:
IP vs25:
TA Ifor
Figure 26:
IPA vs26:
TA Ifor
P CKSR
P CKSR
Figure
25:
I
vs
T
for
CASR
6-NP
Figure
26:
I
vs
T
for
CASR
15-NP
25:
I vs T6-NP
for CKSR 6-NP
26:
I vs
for CKSR
15-NP
A CKSR
P CKSR
A T15-NP
Figure 25: I Figure
vsPT for
Figure 26: I Figure
vs T for
P
160
160
70 80
160 140
140 120
160
140
50 60
120 100
100
40
30
40
50
40
30
30
CASR 25-NP
CASR 25-NP
20
30
20
20 25-NPCASR 25-NP
CASR
10
10
20
10
10
0
0
80
60
40
0 0
20 60
40 80
60 100
80 120
100
200 0 40
20
40 20
60 40
80 60
100 80
120 100
T A (° C) T AT A(°(°C)C)
20
0
120
120
60
A
CASR 50-NP
CASR 50-NP
CASR 50-NPCASR 50-NP
100
100
80
80
60
60
40
40
40
20
20
0
P
120
80
0
A
140
120
I P I P(A)(A)
50
40
I P (A)
I P (A)
60
50
I P (A)
60 70
70
60
P
P
I P (A)
80
70
I P I(A)(A)
A
80 90
90
80
0
P
90
90
0
A
20
0
20
0
20
00
0
T A (° C)
40
20
40
20
60
40 80
60 100
80 120
100 120
60
40
80 60
100 80
120 100 120
(° C)
T (° C)
T AT(°A C)
T A (° C)A
Figure 28: IP vs TA for CASR 50-NP
Figure 27: IP vs TA for CASR 25-NP
TATfor
CKSR
Figurevs
28:
vsCKSR
Tforfor
CKSR
50-NP
Figure
Iforvs
vs
for
CKSR25-NP
25-NP
28:
IAPIfor
vs
CKSR
50-NP
27:
IPCKSR
vsT27:
Tfor
25-NP
Figure
28:
T
50-NP
Figure27:
27:
IFigure
P T
A
A A
P
A PCKSR
vs
25-NP
Figure
28:
IPFigure
vs TIAPfor
for
CKSR
50-NP
Figure
I
The maximum Pcontinuous
DC primary current plot shows the boundary of
the
area
which
all
the following conditions are true:
A
maximum
continuous
DC
primaryplot
current
plotthe
shows
the
boundary
ofofthe
area
forfor
which
thethe
following
conditions
maximum
continuous
DC
primary
plot
shows
the
boundary
the
area
which
all
following
conditions
are true:
The
maximum
continuous
DC
primary
current
shows
boundary
ofarea
the for
area
for
which
all
theallfollowing
conditions
are are
true:true:
IP MThe
●● maximum
IP
