PSR400

Ultra low ohmic Metal plate / High power type
Shunt Resistors
Data Sheet
PSR Series
Features
1) High power class up to 4 to 5W.
2) The lineup of ultra-low resistance value : correspondence from 0.2m
3) Excellent temperature coefficiency.
4) Ideal for current detection under high current circuit.
Products List
Size
Part No.
PSR400
Rated power
(mm)
(inch)
(70°C)
10 × 5.2
3921
4W
15 × 7.75
PSR500
Tolerance
5931
5W
Resistance
range
(mΩ)
Temperature∗
coefficient
(ppm / °C)
0.3,0.5
±175
1.0,2.0,3.0
±75
0.2
±225
F (±1%)
F (±1%)
0.3,0.4,0.5
±150
1.0,2.0
±75
Operating
Automotive
Temperature
Grade
Range
Available
(°C)
(AEC-Q200)
−55 to +170
Yes
∗(+20°C to +125°C)
Chip Resistor Dimensions and Materials
(Unit : mm)
(Top)
L
Part No.
L
W
H
b
Resistance
t
Material
0.3mΩ
1.85±0.15
0.5mΩ
1.30±0.15 Cu / Mn
1.0mΩ
0.90±0.15
2.0mΩ
1.15±0.15
3.0mΩ
0.90±0.15
0.2mΩ
1.85±0.15
0.3mΩ
1.40±0.15
0.4mΩ
1.15±0.15
0.5mΩ
1.05±0.15
1.0mΩ
1.35±0.15
2.0mΩ
0.90±0.15
W
PSR400
10±0.3
5.2±0.3
0.5±0.1
2.0±0.6
t
H
(Bottom)
b
Ni / Cr
Cu / Mn
PSR500
15±0.3
7.75±0.3
0.5±0.1
4.0±0.6
Ni / Cr
Derating Curve
When the ambient temperature exceeds 70°C, power dissipation must be adjusted according to the derating curves below.
RATED POWER (%)
100
80
60
40
20
0
−55
0
70
100
AMBIENT TEMPERATURE (°C)
170
Design and specifications are subject to change without notice.
Carefully check the specification sheet supplied with the product before using or ordering it.
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1/5
2015.10 - Rev.F
Data Sheet
PSR Series
Characteristics
Guaranteed Value
Resistor Type
Test Items
Test Conditions
Measuring method : 2probe per terminal
F : ±1%
Resistance
Probes
Variation of resistance
with temperature
See P1
Measurement : +20/+125
Overload
±0.5%
Rated power×5,5s
Rosin- Ethanol solution(25% weight)
Soldering condition : 245±5°C
Duration of immersion : 2.0±0.5s.
A new uniform coating of minimum of 95%
of the surface being immersed an no
soldering da a
Solderability
±1.0%
No remarkable abnormality on the appearance.
Resistance to
soldering heat
Soldering condition : 260±5°C
Duration of immersion : 10±1s
Rapid change of
temperature
±1.0%
Test temp. : −55°C to +155°C 5cycle
Damp heat, steady state
±0.5%
40°C, 93%RH (Relative Humidity)
Test time : 1,000h to 1,048h
Endurance at 70°C
±1.0%
70°C Rated power
1.5h : ON − 0.5h : OFF
Test time : 1,000h to 1,048h
Endurance at 170°C
±1.0%
70°C
Test time : 1,000h to 1,048h
Component Solvent
Resistance
±0.5%
23±5°C
Solvent : 2−propanol
Bend strength of
the end face plating
Without open
−
Compliance Standard(s) : IEC60115−8
JISC 5201−1
Solder Conditions
300
Soldering temperature(°C)
Recommended solder profile
Reflow
260
220
150 to 180
Temperature(°C)
Peak
Time(s)
60s
120s
10s Max.
260°C±5°C
max. 10s
250
(Note) About flow soldering
1 This part has the structure that resistive element is exposed.
Therefore, the solder may be attached to resistive element
if Flow soldering is used, and resistance value may be outside
of the spec.
2 This part is ultra low ohmic resistor.
If the solder is not equally attached on the whole area
between the bottom electrode and land pattern,
resistance value may be outside of the spec.
200
150
150∼180°C
max. 120s
100
220°C over
max. 60s
50
0
0
1
2
3
4
(min)
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c 2015 ROHM Co., Ltd. All rights reserved.
○
2/5
2015.10 - Rev.F
Data Sheet
PSR Series
<Reference data>
Characteristics
Resistance Value
(mΩ)
0.3
Type
PSR400
PSR500
Thermal resistivity of
product (ºC /W)
4.5
0.5
8
1
15
2
16
3
24
0.2
3
0.3
4.5
0.4
7
0.5
8
1
8
2
16
Thermal EMF
(μV/ºC)
Inductance
(nH)
2μV/ºC Max.
< 3nH
Variation of resistance with temperature (Reference temperature is 20ºC)
Cu/Mn
Ni/Cr
2.00
Resistance change rate (%)
( R/R)
Resistance change rate (%)
( R/R)
2.00
1.50
1.00
0.50
0.00
-0.50
-1.00
-1.50
-2.00
1.50
1.00
0.50
0.00
-0.50
-1.00
-1.50
-2.00
-60
-40
-20
0
20
40
60
80
100
120
140
-60
Temperature(°C)
-40
-20
0
20
40
60
80
100
120
140
Temperature(°C)
Endurance (170ºC with no load)
Resistance change rate (%)
( R/R)
2.00
1.50
1.00
0.50
Ni/Cr
Cu/Mn
0.00
-0.50
-1.00
-1.50
-2.00
0
500
1000
1500
2000
Time / h
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c 2015 ROHM Co., Ltd. All rights reserved.
○
3/5
2015.10 - Rev.F
Data Sheet
PSR Series
 Low Temperature exposure
Resistance change rate (%)
( R/R)
1.00
0.75
0.50
0.25
Cu/Mn
Ni/Cr
0.00
-0.25
-0.50
-0.75
-1.00
0
500
1000
1500
2000
Time / h
Surface Temp Rise (Ta=25ºC)
120
110
100
90
80
70
60
50
40
30
20
10
0
Surface temperature rise (˚C)
PSR500
120
110
100
90
80
70
60
50
40
30
20
10
0
Surface temperature rise (˚C)
PSR400
3mΩ
2mΩ
1mΩ
0.3mΩ
0
1
2
3
Wattage(W)
4
5
6
2mΩ
1mΩ
0.5mΩ
0.2mΩ
0
1
2
3
Wattage(W)
4
5
6
Measurement condition of this data was taken out from board created under our regulation.
Product with highest temperature was selected for the measurement.
Please contact us about test board and test conditions.
Land Pattern
B
A
D
Land
C
Type
A
PSR500
B
C
D
16.00
8.75
5.20
11.00
6.20
2.70
5.60
PSR400
Sensing Line
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c 2015 ROHM Co., Ltd. All rights reserved.
○
∗This land pattern is only for standard pattern.
This does not gurantee the characteristics of the parts
4/5
2015.10 - Rev.F
Data Sheet
PSR Series
Part Number Description
P S R 4 0 0
I T Q F
Part No.
Size (mm [inch])
PSR
400 (10×5.2 [3921])
500 (15×7.75 [5931])
(Ultra low ohmic metal plate
/ High power type shunt
Resistors)
Tolerance
F
Special part code
1%
Packaging Specifications code
Part No.
Packaging
Basic ordering
specifications
unit (pcs)
Code
PSR400
ITQ
Embossed tape
(8mm Pitch)
3,000
PSR500
HTQ
Embossed tape
(12mm Pitch)
2,000
C
0.2mΩ
D
0.3mΩ
E
0.4mΩ
F
0.5mΩ
H
1.0mΩ
J
2.0mΩ
L
3.0mΩ
Nominal Resistance
Resistance code 4 digits.
Resistance
tolerance
code
F
Resistance
:
4 digits
Tolerance
F
0.2mΩ
0L20
0.3mΩ
0L30
0.4mΩ
0L40
0.5mΩ
0L50
1.0mΩ
1L00
2.0mΩ
2L00
3.0mΩ
3L00
Tape Dimensions
Embossed Tape
(Unit : mm)
P0 P2
φD0
E
Part No.
W
F
E
A0
B0
PSR400
16.0±0.2
7.5±0.1
1.75±0.1
5.7±0.2
10.5±0.2
PSR500
24.0±0.2
11.5.±0.1
1.75±0.1
8.3±0.2
15.6±0.2
Part No.
D0
P0
P1
P2
K
PSR400
+0.1
φ1.5 0
4.0±0.1
8.0±0.1
2.0±0.1
2.3±0.1
PSR500
+0.1
φ1.5 0
4.0±0.1
12.0±0.1
2.0±0.1
2.3±0.1
F
W
B0
A0
K
P1
Reel Dimensions
A
B
D
label
C
ACCORDING TO EIAJ ET-7200A
(Unit : mm)
Part No.
A
B
φ330±2.00
φ100±1.00
D
φ17.4±1.0
PSR400
φ13.00±0.20
φ25.4±1.0
PSR500
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○
C
5/5
2015.10 - Rev.F
Datasheet
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(Note1) Medical Equipment Classification of the Specific Applications
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CLASSⅢ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅣ
CLASSⅢ
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H2S, NH3, SO2, and NO2
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[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4.
The Products are not subject to radiation-proof design.
5.
Please verify and confirm characteristics of the final or mounted products in using the Products.
6.
In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7.
De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8.
Confirm that operation temperature is within the specified range described in the product specification.
9.
ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1.
When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2.
In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must
be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products,
please consult with the ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice-PAA-E
© 2015 ROHM Co., Ltd. All rights reserved.
Rev.001
Datasheet
Precautions Regarding Application Examples and External Circuits
1.
If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2.
You agree that application notes, reference designs, and associated data and information contained in this document
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Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1.
Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2.
Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3.
Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4.
Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
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© 2015 ROHM Co., Ltd. All rights reserved.
Rev.001
Datasheet
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3.
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liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccur acy or errors of or
concerning such information.
Notice – WE
© 2015 ROHM Co., Ltd. All rights reserved.
Rev.001