CRF2512-FX-0.00432OHMELF - Bourns, Inc.

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

CRF2512 - High Power Current Sense Chip Resistor

Electrical Characteristics Characteristic Data

Product Dimensions

Construction

Derating Curve

Features

■Resistance value as low as 0.001 ohm

■Power rating of 2 watts at 70 °C

■Lead free

■RoHS compliant*

Applications

■Power supplies

■Stepper motor drives

Power Rating @ 70 °C

0.001 to 0.010 ohms 2 W

0.015 to 0.040 ohms 1 W

Operating Temperature Range -55 °C to +170 °C

Derated to Zero Load at +170 °C

Maximum Working Voltage (P x R)1/2

Insulation Resistance > 100 megohms

Resistance Range 0.001 - 0.040 ohms

Resistance Tolerance ±1 %, ±5 %

Temperature Coefficient

0.001 to 0.002 ohms ±275 PPM/°C

0.003 to 0.010 ohms ±100 PPM/°C

0.015 to 0.040 ohms ±75 PPM/°C

Overcoat

Metal Alloy Plate

Ni / Sn

Plating

Ambient Temperature (°C)

70 170

100

-55

Power Ratio (%)

*RoHS COMPLIANT

Test ∆R Max.

Load Life (1000 hours) < ±1 %

Short Time Overload < ±0.5 %

Thermal Shock < ±0.5 %

6.40 ± 0.20

(0.252 ± 0.008)

0.60 ± 0.20

(0.024 ± 0.008)

3.20 ± 0.20

(0.126 ± 0.008)

0.90 ± 0.20

(0.035 ± 0.008)

0.90 ± 0.20

(0.035 ± 0.008)

DIMENSIONS: MM

(INCHES)

Recommended Solder Pad Layout

Soldering Profile

SENSING TRACE

Cu TRACE

Resistance Range (Ohms) A B L

0.001-0.002

0.003-0.040

4.0

(0.157)

3.1

(0.122)

1.3

(0.051)

4.0

(0.157)

2.1

(0.083)

4.1

(0.161)

100

150

200

250

Temperature (°C)

90 ± 30 seconds

Pre-heating Zone

150 °C

230 °C or higher

Peak 260 +5/-0 °C

180 °C

30 ± 10 seconds

Heating Time

Soldering Zone

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

CRF2512 - High Power Current Sense Chip Resistor

Packaging Dimensions (Conforms to EIA RS-481A)

3.60 ± 0.20

(0.142 ± 0.008) 2.0 ± 0.05

(0.079 ± 0.002)

4.0 ± 0.05

(0.157 ± 0.002)

4.0 ± 0.1

(0.157 ± 0.004)

1.5 +0.1/-0

(0.059 +0.004/-0) DIA. 1.5

(0.059)

DIA. MIN.

0.85 ± 0.15

(0.033 ± 0.006)

6.9 ± 0.2

(0.272 ± 0.008)

5.5 ± 0.05

(0.217 ± 0.002)

1.75 ± 0.1

(0.069 ± 0.004)

12.0 ± 0.2

(0.472 ± 0.008)

TOP TAPE

EMBOSSED TAPE

RESISTOR

USER DIRECTION OF FEED

Resistance Value Table

Code R Value

R001 0.001

R002 0.002

R003 0.003

R005 0.005

R007 0.007

R010 0.010

R015 0.015

R020 0.020

R025 0.025

R030 0.030

R035 0.035

R040 0.040

How To Order

CRF 2512 - F X - R003 E LF

Model

(CRF = Precision Chip Resistor

Size

2512 = 2512 Size

Resistance Tolerance

• F = ±1 %

• J = ±5 %

TCR (PPM/°C)

• Z = ±75 PPM/°C, 0.015 ohm or greater

• X = ±100 PPM/°C, 0.003 ohm through 0.010 ohm

• V = ±275 PPM/°C, 0.001 ohm through 0.002 ohm

Resistance Value

“R” (decimal point) followed by three significant digits (example: R025 = 0.025 ohm)

Packaging

• E = 4,000 pieces on 180 mm (7 inch) reel

Termination

• LF = Tin-plated (lead free)

60.0

(2.362)

MIN.

DIA.

180 +0/-3

(7.09 +0/-0.118)

13.0 ± 1.0

(0.512 ± 0.039)

DIA.

15.4 ± 2.0

(0.606 ± 0.079)

13.0 ± 1.0

(0.512 ± 0.039)

04/07

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