*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.
CRH0603/CRH0805/CRH1206 - Chip Resistors
Electrical Characteristics Characteristic Data
Dimensional Drawing
Derating Curve
DIMENSIONS ARE: MM
(INCHES)
Features
■1 % tolerance from 1.02 megohms to
10 megohms
■RoHS compliant*
■Power rating at 70 °C: CRH0603 - 0.10 W,
CRH0805 - 0.125 W, CRH1206 - 0.25 W
■Suitable for all types of soldering
processes
■Three layer contacting process with
nickel barrier helps prevent leaching and
provides excellent solderability
■Paper tape on reel for automatic
placement
Characteristic Model Model Model
CRH0603 CRH0805 CRH1206
Power Rating @ 70 °C 1/10 W 1/8 W 1/4 W
Operating Temperature Range -55 °C to +125 °C
Derated to 0 Load at +125 °C
Maximum Working Voltage 50 V 100 V 200 V
Maximum Overload Voltage 100 V 200 V 400 V
Resistance Range (E-96 + E-24) 1.02 megohms - 10 megohms
Temperature Coefficient ±200 ppm/°C
L
H
I2I2W
I1
I1
Overcoat
Resistor (Ru02)
(Jumper chip is
a conductor)
Alumina Substrate
Internal Electrode (Ag-Pd)
Secondary Electrode (Nickel Plated)
External Electrode
(see Part Numbering - may be
ordered as solder-plated
or tin-plated)
Chip Dimensions
Dimension Model Model Model
CRH0603 CRH0805 CRH1206
L1.60±0.10 2.00±0.15 3.20±0.25
(0.063±0.004) (0.079±0.006) (0.126±0.010)
W0.80±0.10 1.25±0.15 1.60±0.15
(0.031±0.004) (0.049±0.006) (0.063±0.006)
H0.45±0.10 0.50±0.10 0.60±0.15
(0.018±0.004) (0.020±0.004) (0.024±0.006)
I10.30±0.20 0.40±0.20 0.50±0.25
(0.012±0.008) (0.016±0.008) (0.020±0.010)
I20.30±0.20 0.40±0.20 0.50±0.20
(0.012±0.008) (0.016±0.008) (0.020±0.010)
100
80
60
40
20
0
Rated power in percentage (%)
-55 070 125
(°C) Ambient temperature
*RoHS COMPLIANT
Tests per IEC115-1 ∆R Max.
Load Life (1000 hours) ±1 %
Load Life Humidity
(1000 hours) ±1 %
Short Time Overload ±1 %
Asia-Pacific:
TEL +886-2 25624117
FAX +886-2 25624116
Europe:
TEL +41-41 7685555
FAX +41-41 7685510
The Americas:
TEL +1-951 781-5500
FAX +1-951 781-5700
www.bourns.com
For Standard Values Used in Capacitors, Inductors, and Resistors, click here.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Soldering Profile for RoHS Compliant Chip Resistors and Arrays
CRH0603/CRH0805/CRH1206 - Chip Resistors
25
75
125
175
225
275
0 50 100 150 200 250 300
Time (seconds)
Temperature (°C)
60 - 120 seconds
60 - 90
seconds
260 °C peak
190 °C
150 °C
220 °C
Ramp Down
6 °C/second
255 °C
Maximum of 20 seconds between
+255 °C and +260 °C
Ramp Up
3 °C/second maximum
10 seconds minimum
<1>
<1>
Series A B
CRH0603 1.9 ± 0.2 1.1 ± 0.2
(.075 ± .008) (.043 ± .008)
CRH0805 2.4 ± 0.2 1.65 ± 0.2
(.094 ± .008) (.065 ± .008)
CRH1206 3.57 ± 0.2 2.00 ± 0.2
(.161 ± .008) (.079 ± .008)
Packaging Dimensions (Conforms to EIA RS-481A)
Marking on reel: Part number, quantity, resistance value and tolerance, date code.
1.5 +0.1/-0
(.056 + .004/-0)
Maximum 1 mm (.040) thick
*Cumulative tolerance over 10 holes: ±0.2 mm
1.75 ± 0.1
(.059 ± .004)
B
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.05
(.079 ± .002)
A
8.0 ± 0.2
(.315 ± .008)
3.5 ± 0.05
(.138 ± .002)
4.0 ± 0.1
(.157 ± .004)
20.5
(.807)
13.0 ± 0.5
(.512 ± .020)
2.0
(.080)
1.0 ± 0.2
(.040 ± .020)
10.0 ± 1.5
(.394 ± .059)
80.0 ± 1.0
(3.150 ± .040)
178.0 ± 2.0
(7.008 ± .080)
DIMENSIONS ARE: MM
(INCHES)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
CRH0603/CRH0805/CRH1206 - Chip Resistors
CRH0805
CRH1206
E-96 marking
Value = 44.2K ohms
CRH0603
EIA-96 Marking
1 % marking
Value = 12.4K ohms
Marking Explanation
E-96: 4 digits, first three digits are
significant, fourth digit is number of
zeros to follow.
Letter R is decimal point.
0603 E-96: EIA-96 marking (see table
below).
Resistor Markings
EIA-96 Marking for CRH0603, 1 %
Code R Value Code R Value Code R Value Code R Value Code R Value Code R Value Code R Value Code R Value
01 100 13 133 25 178 37 237 49 316 61 422 73 562 85 750
02 102 14 137 26 182 38 243 50 324 62 432 74 576 86 768
03 105 15 140 27 187 39 249 51 332 63 442 75 590 87 787
04 107 16 143 28 191 40 255 52 340 64 453 76 604 88 806
05 110 17 147 29 196 41 261 53 348 65 464 77 619 89 825
06 113 18 150 30 200 42 267 54 357 66 475 78 634 90 845
07 115 19 154 31 205 43 274 55 365 67 487 79 649 91 866
08 118 20 158 32 210 44 280 56 374 68 499 80 665 92 887
09 121 21 162 33 215 45 287 57 383 69 511 81 681 93 909
10 124 22 165 34 221 46 294 58 392 70 523 82 698 94 931
11 127 23 169 35 226 47 301 59 402 71 536 83 715 95 953
12 130 24 174 36 232 48 309 60 412 72 549 84 732 96 976
This table shows the first two digits for the three-digit EIA-96 part marking scheme. The third character is a letter multiplier:
Y=10-2 X=10-1 A=100B=101C=102D=103E=104F=105
How To Order
CRH 1206 - F W - 1024 E LF
Model
(CRH = Chip Resistor High Value)
Size
• 0603
• 0805
• 1206
Resistance Tolerance
F = ±1 %
TCR (ppm/°C)
W = ±200
Resistance Value
±1 %, 1.02 megohms through 10 megohms ......First three digits are significant, fourth digit represents number of zeros to follow
(example: 1024 = 1.02 megohms).
Packaging
E = Paper Tape (5,000 pcs.) on 7 ” Plastic Reel
Termination
LF = Tin-plated (RoHS compliant)
REV. 02/08
