CRM2512-JW-6R2ELF - Bourns

Features

■ Thick ﬁ lm technology

■ Power rating of 2 watts at 70 °C

■ Low resistance value available

■ RoHS compliant*

Applications

■ Current sensing

■ Power supplies

■ Stepper motor drives

■ Snubber resistor for ﬂ yback power supplies

CRM2512 - High Power Current Sense Chip Resistors

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speciﬁ cations are subject to change without notice.

Users should verify actual device performance in their speciﬁ c applications.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

General Information

The Bourns® CRM2512 Series is a

thick ﬁ lm power resistor with a rating of

2 watts in a standard 2512 chip format.

This product has a very wide resistance

range making it suitable for different

applications in power supply circuits

including current sensing and current

limiting.

*RoHS COMPLIANT

DIMENSIONS: MM

(INCHES)

Electrical Characteristics

Product Dimensions

Derating Curve

Characteristic Data

Test ΔR Max.

Load Life (1000 hours)

1 % Tolerance < 1 %

5 % Tolerance < 3 %

Short Term Overload

1 % Tolerance < 1 %

5 % Tolerance < 2 %

Thermal Shock

1 % Tolerance < 0.5 %

5 % Tolerance < 1 %

6.3 ± 0.20

(0.248 ± 0.008)

TOP SIDE 3.1 ± 0.20

(0.122 ± 0.008)

0.6 ± 0.20

(0.024 ± 0.008) 0.6 ± 0.20

(0.024 ± 0.008)

1.8 ± 0.20

(0.070 ± 0.008)

Ambient Temperature (°C)

70 155

100

-55

Power Ratio (%)

Recommended Solder Pad Layout

Soldering Proﬁ le

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

For Standard Values Used in Capacitors, Inductors, and Resistors, click here.

Notes:

(1) CRM2512 2 W loading with total solder pad and trace size of 300 mm2.

(2) E = (PxR)1/2

E: Working Voltage (V); P: Rated Power (W); R: Resistance Value (Ω)

(3) Jumper (0 Ω): Rated current 6 A maximum with 300 mm2 pad. Temperature coefﬁ cient is not

applicable.

Characteristic Model CRM2512

(0.047 to 0.91 Ω) (0 Ω,1 Ω to 1 M Ω)

Power Rating @ 70 °C 2 W

Operating Temp. Range -55 °C to +155 °C

Derated to Zero Load at +155 °C

Maximum Working Voltage 1349 mV 300 V

Maximum Overload Voltage 2698 mV 600 V

Insulation Resistance > 1000 MΩ

Resistance Range 0.047 - 0.91 Ω

(E24 Values)

0 Ω,

1.0 - 1 MΩ

(E24 Values)

1 Ω - 1 MΩ

(E96 + E24

Values)

Resistance Tolerance ±1 % & ±5 % ±5 % ±1 %

Temperature Coefﬁ cient ±100 PPM/°C ±200 PPM/°C ±100 PPM/°C

Zero Ohm Jumper

<0.02 Ω Max. Rated Current 6A

7.6

(.299)

3.7

(.146)

2.45

(.096)

Speciﬁ cations are subject to change without notice.

Users should verify actual device performance in their speciﬁ c applications.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

CRM2512 - High Power Current Sense Chip Resistors

How to Order

CRM 2512 - F X - R100 E LF

Model

(CRM = Precision Chip Resistor)

Size

2512 = 2512 Size

Resistance Tolerance

• F = ±1 % .................Use with “X” TCR code

• J = ±5 % .................Use with “W” TCR code for values from 1 ohm through 1 megohm

Use with “X” TCR code for values from 0.047 ohm through 0.91 ohm

Use with “/” TCR code for 0 ohm (Jumper)

TCR (PPM/°C - See Electrical Characteristics chart)

• W = ±200 PPM/°C

• X = ±100 PPM/°C

• / = Jumper

Resistance Value

• 1 % or 5 % Tolerance:

R <1 ohm ..............“R” represents decimal point followed by three signiﬁ cant digits (example: R100 = 0.100 ohm)

• 1% Tolerance:

<100 ohms ...........“R” represents decimal point (example: 24R3 = 24.3 ohms)

≥100 ohms ...........First three digits are signiﬁ cant, fourth digit represents number of zeros to follow (example: 8252 = 82.5K ohms)

• 5% Tolerance:

<10 ohms .............“R” represents decimal point (example: 4R7 = 4.7 ohms)

≥10 ohms .............First two digits are signiﬁ cant, third digit represents number of zeros to follow (example: 474 = 470K ohms)

0 ohm Jumper ......“000”

Packaging

• E = 4000 pieces per 180 mm (7 inch) reel

Termination

• LF = Tin-plated (RoHS Compliant)

Pulse Load Characteristics

PULSE DURATION (SEC.)

PEAK POWER (WATTS)

0.0001 0.001 0.01 0.1 1

1000

100

0.1

REV. 05/15

Speciﬁ cations are subject to change without notice.

Users should verify actual device performance in their speciﬁ c applications.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

CRM2512 - High Power Current Sense Chip Resistors

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

PAPER TAPE

RESISTOR

USER DIRECTION OF FEED

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)

DIMENSIONS: MM

(INCHES)

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

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