CR0402-FX-78R7GLF,CR0402-FX-78R7GLF pdf中文资料,CR0402-FX-78R7GLF引脚图,CR0402-FX-78R7GLF电路-Datasheet-电子工程世界

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Features

Small package dimensions

RoHS compliant*

Power rating at 70 °C = 1/16 W

Tight dimensional tolerances

Three layer termination process with

Suitable for most types of soldering

processes

Standard packaging on paper tape and reel

nickel barrier prevents leaching and

provides excellent solderability

CR0402 - Chip Resistor

Derating Curve

100

Rated Power (%)

-55

155

Electrical Characteristics

Power Rating @ 70 °C ................1/16 W

Operating Temperature Range

................................-55 °C to +155 °C

Derated to 0 Load at ..................+155 °C

Maximum Working Voltage ..............50 V

Maximum Overload Voltage ..........100 V

Resistance Range

1 %, E-96

and E-24...... 10 ohms to 10 megohms

5 %, E-24 ........ 1 ohm to 20 megohms

Zero Ohm Jumper ............ <0.05 ohms

Temperature Coefficient

1 %

........10 Ω ≤ R ≤ 1 MΩ ±100 ppm/℃

5 %

......10 Ω ≤ R ≤ 10 MΩ ±200 ppm/℃

AEC-Q200 ..................... Contact Bourns

to confirm availability

10 MΩ < R ≤ 20 MΩ ±400 ppm/℃

1 Ω ≤ R < 10 Ω -200 to +500 ppm/°C

1 MΩ < R ≤ 10 MΩ ±200 ppm/℃

Ro VE LEA

HS RS D

C ION FRE

OM S E

PL AR

IA E

Ambient Temperature (°C)

Standard Values

For Standard Values Used in Capac-

itors, Inductors, and Resistors,

click

here.

Part Marking System

No Marking on the CR0402 Chip

Resistors.

Dimensional Drawings

0.20 ± 0.10

(0.008 ± 0.004)

0.35 ± 0.05

(0.014 ± 0.002)

0.20 ± 0.10

(0.008 ± 0.004)

Resistor (Ru0

)

(Jumper chip is

a conductor)

Overcoat

0.25 ± 0.10

(0.010 ± 0.004)

0.25 ± 0.10

(0.010 ± 0.004)

1.00 ± 0.10

(0.040 ± 0.004)

0.50 ± 0.05

(0.020 ± 0.002)

Alumina Substrate

DIMENSIONS:

(INCHES)

Internal Electrode (Ag)

Secondary Electrode (Nickel Plated)

External Electrode

(tin-plated)

Performance Characteristics

Test

Thermal Shock

Short Time Overload

Resistance to Solder Heat

Resistance to Dry Heat

Load Life

Load Life with Humidity

Solderability

Bending

Dielectric Withstanding

Voltage

Insulation Resistance

Procedure

-55 ℃ for 30 minutes, +155 ℃ for 30 minutes,

5 cycles

2.5 X rated voltage for 5 seconds

270 ±5 ℃ for 10 ±1 seconds

125 ±5 ℃ for 96 ±4 hours

Rated voltage for 1000 hours, 70 ℃,

1.5 hours “ON“, 0.5 hours “OFF”

Rated voltage for 1000 hours, 40 ±2 ℃,

90~95 % RH, 1.5 hours “ON“, 0.5 hours “OFF”

245 ±5 ℃, 2 ±0.5 seconds

3 mm

100 V

Method

IEC60115-1-4.19

IEC60115-1-4.13

IEC60115-1-4.18

IEC60115-1-4.23.2

IEC60115-1-4.25.1

IEC60115-1-4.24

IEC60115-1-4.17

IEC60115-1-4.33

IEC60115-1-4.7

IEC60115-1-4.6

Test Limits

≤±(0.5 % + 0.05 Ω)

≤±(1 % + 0.05 Ω)

≤±(2 % + 0.1 Ω)

≤±(0.5 % + 0.05 Ω)

≤±(1 % + 0.05 Ω)

≤±(2 % + 0.1 Ω)

≤±(3 % + 0.1 Ω)

≥95 % of area covered

≤±(0.5 % + 0.05 Ω)

≤±(1 % + 0.05 Ω)

>100 V

≥1 GΩ

*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.

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

Users should verify actual device performance in their specific applications.

CR0402 - Chip Resistor

Soldering Profile for RoHS Compliant Chip Resistors and Arrays

275

+255 °C and +260 °C

225

220 °C

Temperature (°C)

190 °C

175

150 °C

60 - 90

seconds

Ramp Down

6 °C/second

60 - 120 seconds

10 seconds minimum

Ramp Up

3 °C/second maximum

<1>

Maximum of 20 seconds between

<1>

255 °C

260 °C peak

125

100

150

Time (seconds)

200

250

300

Packaging Dimensions (Conforms to EIA RS-481A)

1.5 + 0.1/-0 DIA.

(0.059 + 0.004/-0)

0.45 ± 0.1

(0.018 ± 0.004)

4.0 ± 0.1

(0.157 ± 0.004)

1.75 ± 0.1

(0.069 ± 0.004)

1.0 ± 0.2

(.040 ± .020)

2.0

(.080)

13.0 ± 0.5

(.512 ± .020)

80.0 ± 1.0

(3.150 ± .040)

0.65 ± 0.1

(0.026 ± 0.004)

1.15 ± 0.1

(0.045 ± 0.004)

3.5 ± 0.05

(0.138 ± 0.002)

8.0 ± 0.2

(0.315 ± 0.008)

2.0 ± 0.1

(0.079 ± 0.004)

Direction of Feeding

Paper

(Punched)

20.5

(.807)

178.0 ± 2.0

(7.008 ± .080)

DIMENSIONS:

(INCHES)

10.0 ± 1.5

(.394 ± .059)

Specifications are subject to change without notice.

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

Users should verify actual device performance in their specific applications.

CR0402 - Chip Resistor

How to Order

Model

(CR = Chip Resistor)

Size

• 0402

Resistance Tolerance

F = ±1 % ..............Used with “X” TCR code only for values from 10 ohms through 1 megohm; and

Used with “W” TCR code only for values above 1 megohm. through 10 megohms.

J = ±5 % ............... Used with “W” TCR code for values from 10 ohms through 10 megohms;

Used with “Z” TCR code for values above 10 megohms through 20 megohms;

Used with “/” TCR code for zero ohm (jumper); and for values from 1 ohm through 9.1 ohms.

TCR (ppm/°C)

X = ±100

W = ±200

Z = ±400

/ = -200 to +500

Resistance Value

For 1 % Tolerance:

<100 ohms ...........“R” designates 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).

For 5 % Tolerance:

<10 ohms .............“R” designates 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; 000 = Jumper).

Packaging

G = Paper Tape (10,000 pcs.) on 7 ” Plastic Reel

Termination

LF = Tin-plated (RoHS compliant)

CR 0402 - F X - 8252 G LF

REV. 11/16

Specifications are subject to change without notice.

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

Users should verify actual device performance in their specific applications.