CST0612 Series Datasheet by Bourns Inc.

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Features
n Four terminal design
n Low inductance value (<1 nH)
n Metal alloy strip
n RoHS compliant* and halogen free**
n AEC-Q200 compliant
Applications
n Current sense
n Precision circuits
n Medical equipment***
n Printers
n Automation equipment
n Navigation equipment
Model CST0612 Current Sense Resistor
* RoHS Directive 2002/95/EC Jan. 27, 2003
including annex and RoHS Recast 2011/65/EU
June 8, 2011.
** Bourns considers a product to be “halogen free” if
(a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less;
and (c) the total Bromine (Br) and Chlorine (Cl)
content is 1500 ppm or less.
*** Bourns® products have not been specifically
designed and tested for FDA Class III applications
and equivalent applications covered by other
regulatory authority such as the European Counsel,
and their use in such applications is neither
recommended nor supported.
Specifications are subject to change without notice.
Users should verify actual device performance in their
specific applications.
The products described herein and this document are
subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/
docs/legal/disclaimer.pdf.
Environmental Characteristics
Specification Model CST0612
Shelf Life Two years from manufacturing date
Storage Conditions:
Temperature +5 °C ~ +35 °C
Humidity 40 % ~ 75 %
Recommended Solder Sn96.5 / Ag3 / Cu0.5
, Material:
Strip Alloy
Overcoating Molding
Compound UL 94V0 Grade
How to Order
CST 0612 - F C - R001 E
Model
(CST = Current Sense
Terminal Type)
Size
0612
Resistance Tolerance
F = ±1 %
TCR (See Electrical
Characteristics chart)
X = ±100 PPM/°C
C = ±200 PPM/°C
Resistance Code
See Popular Resistance Table
Packaging Code (NOTE 2)
E = Embossed Tape (4,000 pcs. per 7 ” reel)
(NOTE 2) Part Number CST0612-FC-R0005-E
requires a hyphen before the
Packaging Code.
Electrical Characteristics
Characteristic Model CST0612
Power Rating @ 70 °C 1 W (NOTE 1)
Resistance Range 0.5 - 5 milliohms
Operating Temperature Range -55 °C to +170 °C
Temperature Coefficient of Resistance ±100 PPM/°C
±200 PPM/°C
Resistance Tolerance ±1 %
Insulation Resistance > 100 megohms
Derated to Zero Load at +170 °C
Maximum Working Voltage (V) (P*R)^1/2
(Note 1) 1 watt with total solder pad and trace size of 300 mm2.
Soldering Profile
50
100
150
200
250
Heating Time
Temperature (°C)
10 ±1 second
30 ±10 seconds
90 ±30 seconds
Peak: 260 °C
230 °C or higher
180 °C
150 °C
PREHEATING ZONE
SOLDERING ZONE
Iron Solder: 350 ±10 °C
3 +1/-0 seconds
Popular Resistance Table
Resistance
Value
(Milliohms)
Resistance
Code
0.50 R0005
0.75 R00075
1.00 R001
1.50 R0015
2.00 R002
3.00 R003
5.00 R005
Rated Voltage
The rated voltage is calculated by the
following formula:
V= P X R V: Rated Voltage (V)
P: Rated Power (W)
R: Resistance Value (W)
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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3312 - 2 mm SMD Trimming Potentiometer
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of
this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Model CST0612 Current Sense Resistor
Reliability Tests
Test Item Reference Standard Test Conditions Test Limits
Temperature Coefficient of Resistance IEC 60115-1-4.8
JIS-C5201-4.8 +25 °C ~ +125 °C Refer 4.0
Load Life IEC 60115-1-4.25.1
JIS-C5201-4.25.1
1000 hours at rated power, 70 °C,
1.5 hours “ON”, 0.5 hours “OFF” < ±2 %
Short Time Overload IEC 60115-1-4.13
JIS-C5201-4.13
5 times rated power
for 10 seconds < ±0.5 %
Moisture No Load IEC60115-1-4.24.2.1a
JIS-C5201-4.24.2.1a 85 °C, 85 %RH, 1000 hours < ±0.5 %
Temperature Cycle IEC60115-1-4.19
JIS-C5201-4.19
-55 °C and +155 °C, 300 cycles,
15 minutes per extreme condition < ±0.5 %
Resistance to Soldering Heat IEC60115-1-4.18
JIS-C5201-4.18
260 ° ±5 °C for 10 ±1 seconds,
2 cycles < ±0.5 %
Solderability IEC60115-1-4.17
JIS-C5201-4.17 245 ±5 °C, 2 ±0.5 seconds
At least 95 % of surface area of
electrode shall be covered with
new solder
High Temperature Exposure IEC60115-1-4.23.2
JIS-C5201-4.23.2 170 °C, 1000 hours < ±2 %
Low Temperature Storage IEC60115-1-4.23.4
JIS-C5201-4.23.4 -55 °C, 1000 hours < ±0.5 %
Substrate Bending IEC60115-1-4.33
JIS-C5201-4.33 2 mm bending width < ±0.5 %
Insulation Resistance IEC60115-1-4.6
JIS-C5201-4.6 100 V DC for 1 minute > 100 megohms
Product Dimensions
DIMENSIONS: MM
(INCHES)
3.05 ± 0.25
(.120 ± .010)
1.65 ± 0.20
(.065 ± .008)
0.40 ± 0.25
(.016 ± .010)
0.51 ± 0.13
(.020 ± .005)
0.51 ± 0.13
(.020 ± .005)
0.65 ± 0.20
(.026 ± .008)
1.0
(.039)
0.7
(.028)
0.40
(.016)
0.80
(.031)
2.3
(.091)
Recommended Solder Pad Layout
3.05 ± 0.25
(.120 ± .010)
1.65 ± 0.20
(.065 ± .008)
0.40 ± 0.25
(.016 ± .010)
0.51 ± 0.13
(.020 ± .005)
0.51 ± 0.13
(.020 ± .005)
0.65 ± 0.20
(.026 ± .008)
1.0
(.039)
0.7
(.028)
0.40
(.016)
0.80
(.031)
2.3
(.091)
Copper foil min.
thickness of PCB: 3 oz.
Derating Curve
100
80
60
40
20
0
Power Ratio (%)
-55 070 170
Ambient Temperature (°C)
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3312 - 2 mm SMD Trimming Potentiometer
3.60 ± 0.20
(0.142 ± 0.008) 2.0 ± 0.05
(0.079 ± 0.002)
4.00 ± 0.05
(0.157 ± 0.002)
4.00 ± 0.10
(0.157 ± 0.004)
DIA.
1.50 +0.10/-0
(0.059 +0.004/-0)
1.5
(0.059)
DIA. MIN.
3.40 ± 0.10
(0.134 ± 0.004)
5 °
0.22 ± 0.05
(0.008 ± 0.002)
1.04 ± 0.10
(0.041 ± 0.004) 1.77 ± 0.10
(0.070 ± 0.004)
8 °
6.9 ± 0.2
(0.272 ± 0.008)
3.50 ± 0.05
(0.138 ± 0.002)
1.75 ± 0.10
(0.069 ± 0.004)
8.00 ± 0.10
(0.315 ± 0.004)
USER DIRECTION OF FEED
60.0 ± 1.0
(2.362 ± 0.039)
MIN.
DIA.
DIA.
178 ± 2.0
(7.008 ± 0.079)
13.0 ± 1.0
(0.512 ± 0.039)
DIA.
9.0 ± 1.0
(0.354 ± 0.039)
11.5 ± 1.0
(0.453 ± 0.039)
Model CST0612 Current Sense Resistor
Packaging Specifications
DIMENSIONS: MM
(INCHES)
REV. 03/19
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
4,000 PIECES PER REEL
BOURNS'
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C1753 05/17/18R

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