CSRF0402FT3L00 Datasheet CSRF0402FT10L0, CSRF0805FT10L0, CSRF2010FT6L00 | P4-P6

Rev Date: 03/16/2017 4 www.seielect.com

This specification may be changed at any time without prior notice marketing@seielect.com

Please confirm technical specifications before you order and/or use.

CSRF Series

Foil on Ceramic Current Sensing Chip Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Packaging Specifications – Paper Tape

Packaging Specifications – Embossed Plastic Tape

Type / Code Unit

0.028 ± 0.002 0.047 ± 0.002 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches

0.70 ± 0.05 1.20 ± 0.05 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm

0.043 ± 0.004 0.075 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches

1.10 ± 0.10 1.90 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm

0.063 ± 0.004 0.094 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches

1.60 ± 0.10 2.40 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm

0.079 ± 0.004 0.142 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches

2.00 ± 0.10 3.60 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm

0.079 ± 0.004 0.142 ± 0.004 0.069 ± 0.004 0.138 ± 0.002 0.315 ± 0.008 Inches

2.00 ± 0.10 3.60 ± 0.10 1.75 ± 0.10 3.50 ± 0.05 8.00 ± 0.20 mm

Type / Code Unit

0.157 ± 0.004 0.079 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.024 ± 0.004 Inches

4.00 ± 0.10 2.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.60 ± 0.10 mm

0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.028 ± 0.004 Inches

4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.70 ± 0.10 mm

0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.038 ± 0.004 Inches

4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.97 ± 0.10 mm

0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.038 ± 0.004 Inches

4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.97 ± 0.10 mm

0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.061 ± 0.002 0.038 ± 0.004 Inches

4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.55 ± 0.05 0.97 ± 0.10 mm

CSRF0402

CSRF0603

CSRF0805

CSRF1206

CSRF0612

CSRF0603

CSRF1206

CSRF0612

CSRF0402

CSRF0805

Type / Code Unit

0.110 ± 0.004 0.211 ± 0.004 0.069 ± 0.004 0.217 ± 0.002 0.472 ± 0.012 Inches

2.80 ± 0.10 5.35 ± 0.10 1.75 ± 0.10 5.50 ± 0.05 12.00 ± 0.30 mm

0.138 ± 0.004 0.268 ± 0.004 0.069 ± 0.004 0.217 ± 0.002 0.472 ± 0.008 Inches

3.50 ± 0.10 6.80 ± 0.10 1.75 ± 0.10 5.50 ± 0.05 12.00 ± 0.20 mm

Type / Code Unit

0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.059 ± 0.004 0.039 ± 0.008 Inches

4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 1.50

0.10 1.00 ± 0.20 mm

0.157 ± 0.002 0.157 ± 0.004 0.079 ± 0.002 0.059 ± 0.004 0.039 ± 0.008 Inches

4.00 ± 0.05 4.00 ± 0.10 2.00 ± 0.05 1.50 ± 0.10 1.00 ± 0.20 mm

CSRF2512

CSRF2010

CSRF2512

Rev Date: 03/16/2017 5 www.seielect.com

This specification may be changed at any time without prior notice marketing@seielect.com

Please confirm technical specifications before you order and/or use.

CSRF Series

Foil on Ceramic Current Sensing Chip Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Solder Land Pattern

Packaging Specifications – Embossed Plastic Tape

Type / Code Unit

0.211 ± 0.004

0.462

± 0.004

0.069 ± 0.004 0.453

± 0.004 0.945 ± 0.012

0.157 ±

0.004

Inches

5.36 ±

0.10 11.74 ± 0.10 1.75

± 0.10

11.50

± 0.10

24.00

± 0.30 4.00 ± 0.10

0.211

0.004 0.462

0.004 0.069 ± 0.004 0.453

0.004 0.945

± 0.012

0.157 ±

0.004

Inches

5.36

0.10 11.74 ±

0.10

1.75 ± 0.10

11.50

± 0.10

24.00 ±

0.30

4.00 ±

0.10 mm

Type / Code Unit

0.315 ± 0.004 0.079 ± 0.004 0.059 ± 0.004 0.059 ±

0.010 0.013

0.004 0.077 ± 0.004 Inches

8.00 ±

0.10 2.00 ±

0.10 1.50 ± 0.10 1.50 ±

0.25

0.33 ±

0.10 1.96 ± 0.10 mm

0.315

0.004 0.079 ± 0.004 0.059

0.004 0.059

± 0.010 0.013 ± 0.004 0.077 ± 0.004 Inches

8.00 ±

0.10 2.00

± 0.10 1.50 ± 0.10

1.50 ± 0.25 0.33

± 0.10 1.96

0.10 mm

CSRF2043

CSRF4320

CSRF2043

CSRF4320

Size a b c Unit

0.008 0.031 0.024 inches

0.20 0.80 0.60

0.012 0.024 0.024 inches

0.30 0.60

0.60 mm

0.020 0.020 0.024 inches

0.50 0.50 0.60 mm

0.035

0.028 0.039 inches

0.90 0.70 1.00 mm

0.047 0.047 0.055 inches

1.20 1.20 1.40 mm

0.087 0.051 0.071 inches

2.20 1.30 1.80 mm

0.024 0.051 0.142 inches

0.60 1.30 3.60 mm

0.118 0.061 0.120 inches

3.00 1.56 3.05 mm

0.150 0.083 0.134 inches

3.80 2.10 3.40 mm

0.157 0.197 0.276 inches

4.00 5.00 7.00 mm

0.118 0.079 0.472 inches

3.00 2.00 12.00 mm

CSRF0612

CSRF2010

CSRF4320

CSRF2043

CSRF0402

0.003Ω - 0.004Ω

CSRF2512

CSRF0402

0.005Ω - 0.007Ω

CSRF0402

0.008Ω - 0.05Ω

CSRF0603

CSRF1206

CSRF0805

Rev Date: 03/16/2017 6 www.seielect.com

This specification may be changed at any time without prior notice marketing@seielect.com

Please confirm technical specifications before you order and/or use.

CSRF Series

Foil on Ceramic Current Sensing Chip Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

High Power Chip Resistors and Thermal Management

Stackpole has developed several surface mount resistor series in addition to our current sense resistors,

which have had higher power ratings than standard resistor chips. This has caused some uncertainty and

even confusion by users as to how to reliably use these resistors at the higher power ratings in their designs.

The data sheets for the RHC, RMCP, RNCP, CSR, CSRN, CSRF, CSS, and CSSH state that the rated

power assumes an ambient temperature of no more than 100ºC for the CSS / CSSH series and 70ºC for all

other high power resistor series. In addition, IPC and UL best practices dictate that the combined

temperature on any resistor due to power dissipated and ambient air shall be no more than 105ºC . At first

glance this wouldn’t seem too difficult, however the graph below shows typical heat rise for the CSR1206 100

milliohm at full rated power. The heat rise for the RMCP and RNCP would be similar. The RHC with its

unique materials, design, and processes would have less heat rise and therefore would be easier to

implement for any given customer.

The 102ºC heat rise shown here would indicate there will be additional thermal reduction techniques needed

to keep this part under 105ºC total hot spot temperature if this part is to be used at 0.75 watts of power.

However, this same part at the usual power rating for this size would have a heat rise of around 72ºC. This

additional heat rise may be dealt with using wider conductor traces, larger solder pads and land patterns

under the solder mask, heavier copper in the conductors, vias through PCB, air movement, and heat sinks,

among many other techniques. Because of the variety of methods customers can use to lower the effective

heat rise of the circuit, resistor manufacturers simply specify power ratings with the limitations on ambient air

temperature and total hot spot temperatures and leave the details of how to best accomplish this to the

design engineers. Design guidelines for products in various market segments can vary widely so it would be

unnecessarily constraining for a resistor manufacturer to recommend the use of any of these methods over

another.

Note: The final resistance value can be affected by the board layout and assembly process, especially the size of the

mounting pads and the amount of solder used. This is especially notable for resistance values ≤ 50 mΩ.

This should be taken into account when designing.

P1-P3 P4-P6 P7-P8

CSRF0402FT3L00

Mfr. #:

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Foil on Ceramic Current Sensing Chip Resisto

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CSRF0402FT3L00

CSRF0402FT3L00

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