PSG4/PSF4
current sensing power shunt
EU
features
current
sense
• Correcter electric current detection is
possible with 4-terminal construction
• Excellent T.C.R. achieved (±50×10-6/K)
• Ultra low resistance, suitable for large current sensing
• Automatic mounting machines are applicable
• Suitable for reflow soldering (Not suitable for
flow soldering)
• Products meet EU RoHS requirements
• AEC-Q200 tested
dimensions and construction
Type
(Inch Size Code)
PSG4
(2725)
PSF4
(1216)
Resist.
(Ω)
0.5m
1m
0.5m
1m
L
W
Dimensions inches (mm)
c
d
Ws
.272±.010 .260±.010 .079±.004
(6.9±0.25) (6.6±0.25) (2.0±0.1)
.118±.004 .150±.004
(3.0±0.1) (3.8±0.1)
––
––
Wv
t
.120±.008
.039±.004 .028±.010 (3.05±0.2)
(1.0±0.1) (0.7±0.1) .110±.008
(2.8±0.2)
.037±.006 .028±.002 .020±.002 .071±.004
(0.95±0.15) (0.7±0.05) (0.5±0.05) (1.8±0.1)
L
Derating Curve
Current
Terminal
c
Electrode
80
Ws
Wv
% Rated Power
Resistive
Element
t
100
W
d
Voltage Terminal
PSG4
PSF4
60
40
20
0
-80
-60 -40 -20
-65
When the terminal part temperature
of the resistor exceeds the rated
terminal part temperature shown,
the power shall be derated according
to the derating curve.
Please refer to “Introduction of the
derating curve based on the terminal
part temperature” in the beginning of
our catalog before use.
0 20 40 60 80 100 120 140 160 180
75
130
175
Terminal Part Temperature
(°C)
ordering information
PS
Type
G
4
N
Power
Rating
G (0.5m): 10W
G (1m): 8W
F (0.5m): 5W
F (1m): 3W
Termination
Number
Termination
Material
N: No surface
treatment
TEB
Packaging
TEB: Plastic
embossed
L500
Nominal
Resistance
4 digits: all
values less than
100mΩ are
expressed in
mΩ with “L” as
decimal Ex:
0.5mΩ - L500
1mΩ - 1L00
F
Tolerance
F: ±1%
Contact us when you have control request for environmental hazardous material other
than the substance specified by EU RoHS.
For further information on packaging, please refer to Appendix A.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
4/13/20
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
95
PSG4/PSF4
current sensing power shunt
applications and ratings
Power
Rating
(Current Rating)
current
sense
Part
Designation
T.C.R.
(ppm/°C)
Max.
10W (141A)
PSG4
Resistance
Tolerance
Rated
Terminal Part
Temperature
F: ±1%
75°C
0.5mΩ
±50
8W (89A)
1mΩ
5W (100A)
PSF4
Resistance
Range
-65°C to +175°C
0.5mΩ
±50
3W (54A)
Operating
Temperature
Range
F: ±1%
130°C
1mΩ
environmental applications
One-Pulse Limiting Electric Power
PSF4
1,000,000
100,000
10,000
1,000
0.5mΩ
100
1mΩ
10
1
.001
.01
10
1
.1
100
One-Pulse Limiting Electric Power (W)
One-Pulse Limiting Electric Power (W)
PSG4
10,000,000
10,000,000
1,000,000
100,000
10,000
1,000
100
0.5mΩ
1mΩ
10
1
.001
.01
Thermal Resistance
PSF4
Rth (°C/W)
9
12
8
14
TH + T=Hs
Terminal Part Temperature
TH :High
TM :Medium =ts
TL :Low
TM + T=Hs
Temperature
PSG4
Resistance (Ω)
0.5m
1m
0.5m
1m
100
Pulse Duration
(ms)
Pulse Duration
(ms)
Type
10
1
.1
The maximum applicable voltage is
equal to the max. overload voltage.
Please ask us about the resistance
characteristic of continuous applied
pulse.
The pulse endurance values are
not assured values,so be sure to
check the products on actual
equipment when you use them.
T
TL + T=Hs
Rth=(Hs-ts)/Power
Regarding the temperature rise, the value of the temperature
varies per conditions and board for use since the temperature
is measured under our measuring conditions. Please refer to
us before use.
T
T
TH
TM
TL
Low
The temperature of the resistor will
increase the same ⊿T from the
standard terminal part temperature
regardlless of the ambient temperature
when the same power is applied. This
is because there is hardly any heat
dissipation from the resistor surface
to the ambient air.
High
Terminal Part Temperature
Performance Characteristics
Parameter
T.C.R.
Requirement ∆ R ±%
Limit
Typical
Within specified
––
T.C.R.
Overload (Short time)
±0.5%
±0.1%
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
±0.5%
±0.5%
±0.5%
±0.1%
±0.1%
±0.05%
Endurance at Rated Terminal
Part Temperature
±1.0%
±0.5%
Low Temperature Exposure
High Temperature Exposure
±0.5%
±1%
±0.01%
±0.6%
Test Method
+25°C/+125°C
PSG4 (0.5mΩ): 30W for 5 seconds; PSG4 (1mΩ): 20W for 5 seconds
PSF4 (0.5mΩ): 15W for 5 seconds; PSF4 (1mΩ): 9W for 5 seconds
260°C ± 5°C, 15 seconds ± 1 second
-55°C (30 minutes), +150°C (30 minutes), 1,000 cycles
85°C ± 3°C, 85% ± 3% RH, 1000 hours, 10% Bias
PSG4: Terminal part temperature: 75°C ± 3°C, 1000 hours,
1.5 hr ON, 0.5 hr OFF cycle
PSF4: Terminal part temperature: 130°C ± 3°C, 1000 hours,
1.5 hr ON, 0.5 hr OFF cycle
-65°C, 1000 hours
+175°C, 1,000 hours
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
96
10/22/20
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
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