CRM0805-FW-4873ELF [BOURNS]

Fixed Resistor, Thick Film, 0.25W, 487000ohm, 150V, 1% +/-Tol, 200ppm/Cel, Surface Mount, 0805, CHIP, ROHS COMPLIANT;


型号：	CRM0805-FW-4873ELF
厂家：	BOURNS ELECTRONIC SOLUTIONS
描述：	Fixed Resistor, Thick Film, 0.25W, 487000ohm, 150V, 1% +/-Tol, 200ppm/Cel, Surface Mount, 0805, CHIP, ROHS COMPLIANT 电阻器
文件：	总3页 (文件大小：302K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Features

Applications

■ Power supplies

■ Stepper motor drives

■ Thick ﬁlm technology

■ Power rating of 0.25, 0.5 or 1 watt at 70 °C

■ Strong pulse performance

■ RoHS compliant*

CRM0805/1206/2010 Chip Resistors

Electrical Characteristics

Characteristic

General Information

Bourns CRM Series are thick ﬁlm chip

Model

resistors with high power ratings making

them suitable for different applications in

power supply circuits including current

sensing, current limiting and high pulse

resistance.

CRM0805

CRM1206

CRM2010

Power Rating @ 70 °C

Operating Temperature Range

Derated to Zero Load at

0.25 W

0.5 W

-55 °C to +155 °C

+155 °C

1 W

Maximum Working Voltage

Characteristic Data

0.047 to 0.91 ohms

477 mV

150 V

675 mV

200 V

>1000 megohms

954 mV

400 V

1.0 ohm to 1.0 megohm

Insulation Resistance

Resistance Range

Test

ΔR Max.

Load Life (1000 hours)

Rated Voltage @ 70 °C

(1.5 hrs. on, 0.5 hrs. off)

1 ꢀ Tolerance

0.047 - 0.91 ohm (E24 Values)

1.0 - 9.1 ohms (E24 Values)

10.0 ohms - 1 megohm (E24 + E96 Values)

< 1 ꢀ

< 3 ꢀ

5 ꢀ Tolerance

Resistance Tolerance

1 ꢀ, 5 ꢀ

Short Term Overload

(5 X Rated Power for 5 sec.)

1 ꢀ Tolerance

Temperature Coefﬁcient

0.047 to 0.091 ohms

0.100 to 0.91 ohms

150 PPMꢁ°C

100 PPMꢁ°C

200 PPMꢁ°C

100 PPMꢁ°C

< 1 ꢀ

< 2 ꢀ

5 ꢀ Tolerance

1.0 ohm to 1 megohm

10 ohms to 1 megohm

Thermal Shock

(5 Cycles: -55 °Cꢁ30 min.;

+25 °Cꢁ2-3 min.; +155 °Cꢁ

30 min.; +25 °Cꢁ2-3 min.)

1 ꢀ Tolerance

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

< 0.5 ꢀ

< 1 ꢀ

Product Dimensions

5 ꢀ Tolerance

Derating Curve

(INCHES)

DIMENSIONS:

100

Model

2.00 0.15

1.20 0.15

0.40 0.20

0.50 0.10

CRM0805

(0.079 0.006) (0.047 0.006) (0.016 0.008) (0.016 0.008) (0.020 0.04)

-55

155

3.10 0.15

(0.122 0.006) (0.063 0.006) (0.020 0.010) (0.020 0.010) (0.022 0.004)

5.00 0.20 2.50 0.20 0.60 0.25 0.60 0.25 0.60 0.10

(0.197 0.008) (0.098 0.008) (0.024 0.010) (0.024 0.010) (0.024 0.004)

1.60 0.15

0.50 0.25

0.55 0.10

Ambient Temperature (°C)

CRM1206

CRM2010

Recommended Solder Pad Layout

Model

1.3

1.15

1.2

CRM0805

(0.051)

(0.045)

(0.047)

1.8

1.3

2.1

CRM1206

CRM2010

Cu TRACE

(0.071)

(0.051)

(0.083)

SENSING TRACE

3.0

1.5

3.8

(0.118)

(0.059)

(0.149)

(INCHES)

DIMENSIONS:

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

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

CRM0805/1206/2010 Chip Resistors

Soldering Proﬁle

275

<1>

Maximum of 20 seconds between

+255 °C and +260 °C

260 °C peak

<1>

255 °C

225

175

125

220 °C

190 °C

90 - 150

seconds

Ramp Down

6 °C/second

150 °C

60 - 120 seconds

10 seconds minimum

Ramp Up

3 °C/second maximum

100

150

200

250

300

Time (seconds)

Pulse Voltage Curve

10000

1000

100

CRM2010

CRM1206

CRM0805

100

1000

10000

100000

RESISTANCE (OHMS)

Test Method: 1.2/50 μs Waveform with 12 Ohm Resistor, 5 Pulses at 12 Second Intervals

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

CRM0805/1206/2010 Chip Resistors

How to Order

CRM 2010 - F X - R100 E LF

Model

(CRM = Precision Chip Resistor)

Size

0805 = 0805 Size

1206 = 1206 Size

2010 = 2010 Size

Resistance Tolerance

• F = 1 ꢀ

• J = 5 ꢀ

TCR (PPM/°C)

• W = 200 PPM/°C

• Z = 150 PPM/°C

• X = 100 PPM/°C

Resistance Value

R <1 ohm (1 ꢀ or 5 ꢀ Tolerance: “R” (decimal point) followed by three signiﬁcant digits (example: R100 = 0.100 ohm

1ꢀ Tolerance:

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

≥100 ohms.......First three digits are signiﬁcant, fourth digit represents number of zeros to follow

(example: 8252 = 82.5K ohms)

5ꢀ Tolerance:

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

≥10 ohms.........First two digits are signiﬁcant, third digit represents number of zeros to follow

(example: 474 = 470K ohms)

Packaging

• E = 5000 pieces on 180 mm (7 inch) reel - CRM0805, CRM1206

4000 pieces on 180 mm (7 inch) reel - CRM2010

Termination

• LF = Tin-plated (RoHS Compliant)

Packaging Dimensions (Conforms to EIA RS-481A)

4.0 0.1

(.157 .004)

13.0 1.0

(0.512 0.039)

2.0 0.05

(.079 .002)

DIA.

180 +0/-3

(7.09 +0/-0.118)

DIA.

60.0

(2.362)

MIN.

DIA.

1.75 0.1

(.059 .004)

1.5 +0.1/-0

(.056 + .004/-0)

15.4 2.0

(0.606 0.079)

Maximum 1 mm (.040) thick

* Cumulative over 10 holes: 0.2 mm

13.0 1.0

(0.512 0.039)

(INCHES)

DIMENSIONS:

Model

2.40 0.20

1.65 0.20

3.50 0.05

8.00 0.30

CRM0805

(0.094 0.008) (0.065 0.008) (0.138 0.002) (0.315 0.012)

3.57 0.20

(0.141 0.008) (0.079 0.008) (0.138 0.002) (0.315 0.012)

5.50 0.20 2.80 0.20 5.50 0.05 12.00 0.30

(0.217 0.008) (0.110 0.008) (0.217 0.002) (0.472 0.012)

2.00 0.20

3.50 0.05

8.00 0.30

CRM1206

CRM2010

REV. 02/12

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

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