CRM2512-FZ-R090ELF【PDF 1/3 页】RES .090 OHM 2W 1% 2512 SMD

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Sheet目录972

[1页]2页 3页

Features

■ Thick ?lm technology

■ Power rating of 2 watts at 70 °C

Applications

■ Power supplies

■ Stepper motor drives

■ RoHS compliant*

CRM2512 - Pulse Resistant Power Resistor

Electrical Characteristics

General Information

Characteristic

Power Rating @ 70 °C

Operating Temp. Range

Derated to Zero Load at

Maximum Working Voltage

Model

CRM2512

(0.110 to 0.91 Ω)

1349 mV

Model

CRM2512

(0 Ω, 1.0 Ω to 1.0 M Ω)

-55 °C to +155 °C

+155 °C

300 V

The Bourns ? CRM2512 Series is a

thick- ?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 inrush

current limiting.

Maximum Overload Voltage

Insulation Resistance

2698 mV

> 1000 M Ω

600 V

Characteristic Data

Resistance Range

Resistance Tolerance

Temperature Coef?cient

0.110 - 0.91 Ω

(E24 Values)

±1 % & ±5 %

±100 PPM/°C

0 Ω,

1.0 - 1 M Ω

(E24 Values)

±5 %

±200 PPM/°C

1 Ω - 9.1 Ω

(E24 Values)

10 Ω - 1 M Ω

(E96 Values)

±1 %

±100 PPM/°C

Test

Load Life (1000 hours)

1 % Tolerance

5 % Tolerance

Short Term Overload

Δ R Max.

<1%

<3%

Notes:

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

(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 mm 2 pad.

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

Soldering Pro?le

250

Peak 260 +5/-0 °C

230 °C or higher

1 % Tolerance

5 % Tolerance

Thermal Shock

1 % Tolerance

5 % Tolerance

Product Dimensions

6.3 ± 0.20

(0.248 ± 0.008)

TOP SIDE

<1%

<2%

< 0.5 %

<1%

3.1 ± 0.20

(0.122 ± 0.008)

200

180 °C

Pre-heating Zone

150

100

150 °C

90 ± 30 seconds

30 ± 10 seconds

Heating Time

Soldering Zone

0.6 ± 0.20

(0.024 ± 0.008)

1.8 ± 0.20

(0.070 ± 0.008)

0.6 ± 0.20

(0.024 ± 0.008)

Recommended Solder Pad Layout

Derating Curve

100

7.6

(.299)

2.45

(.096)

3.7

(.146)

-55

155

Ambient Temperature (°C)

DIMENSIONS:

(INCHES)

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

Speci?cations are subject to change without notice.

Users should verify actual device performance in their speci?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.

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