Metal Film Fixed Resistors
(RoHS Compliant)
FEATURES
•
•
•
•
•
•
•
Temperature Range: -55°C ~ +155°C
±1% tolerance
Epoxy coated miniature resistors
Nickel chromium ceramic substrate
Alloy coated leads
Welded end caps
EIA standard color coding
MF-RC Series
LOAD LIFE
100
Percent Rated Load
+0.8
+0.4
∆
R/R (%)
0
-0.4
-0.8
100Ω
1KΩ
10KΩ
100KΩ
Nominal Resistance (Ω)
1MΩ
80
DERATING CURVE
db
0
-10
-20
40
20
0
20 40
70
100 120 155
-30
-40
-50
Ambient Temperature (°C)
Code:
PART NUMBERING SYSTEM
Package:
Bulk
Tape and Reel
Ammo Pack
REEL
AP
2
7
Series
0
1
0
Ohms
0
R
E
E
L
-
R
C
Package Code
Suffix (RoHS Compliant)
SERIES, WATTAGE, SIZE, VOLTAGE, DIMENSIONS, AND AVAILABLE PACKAGING
d
–0.05
H –3
L
H –3
D
Series
270
271
273
Watts
1/8
1/4
1/2
Standard Range
of Values (Ω)
1~10M
1~10M
1~10M
Voltage (max.)
W.V.
O.V.
200
400
250
500
350
700
L max.
3.5
6.8
10
Dimensions (mm)
D max.
H
1.85
28
2.5
28
3.5
28
d
0.45
0.54
0.54
Standard Quantities Available
Bulk
Tape and Reel Ammo Pack
1,000
5,000
2,000
1,000
5,000
1,000
1,000
3,000
1,000
XICON PASSIVE COMPONENTS • (800) 628-0544
XC-600046
Date Revised: 9/28/05
Metal Film Fixed Resistors
(RoHS Compliant)
STANDARD VALUES (Ω)
10
10.2
10.5
10.7
11
11.3
11.5
11.8
12
12.1
12.4
12.7
13
13.3
13.7
14
14.3
14.7
15
15.4
15.8
16
16.2
16.5
16.9
17.4
17.8
18
18.2
18.7
19.1
19.6
20
20.5
21
21.5
22
22.1
22.6
23.2
23.7
24
24.3
24.7
24.9
25.5
26.1
26.7
27
27.4
28
28.7
29.4
30
30.1
30.9
31.6
32.4
33
33.2
34
34.8
35.7
36
36.5
37.4
38.3
39
39.2
40.2
41.2
42.2
43
43.2
44.2
45.3
46.4
47
47.5
48.7
49.9
51
51.1
52.3
53.6
54.9
56
56.2
57.6
59
60.4
61.9
62
63.4
64.9
66.5
68
68.1
69.8
71.5
73.2
75
75.5
76.8
78.7
80.6
82
82.5
84.5
86.6
88.7
90.9
91
93.1
95.3
97.6
100
102
105
107
110
113
115
118
120
121
124
127
130
133
137
140
143
147
150
154
158
160
162
165
169
174
178
180
182
187
191
196
200
205
210
215
220
221
226
232
237
240
243
249
255
261
267
270
274
280
287
294
300
301
309
316
324
330
332
340
348
350
357
360
365
374
383
390
392
402
412
422
430
432
442
453
464
470
475
487
499
510
511
523
536
549
560
562
565
MF-RC Series
715 1.27K 2.26K 3.83K 6.49K 11.3K 20K 33.6K 56K 95.3K 174K 294K 487K 845K
732 1.3K 2.32K 3.9K 6.65K 11.5K 20.5K 34K 56.2K 97.6K 178K 300K 499K 866K
750 1.33K 2.37K 3.92K 6.8K 11.8K 21K 34.8K 57.6K 100K 180K 301K 511K 887K
768 1.37K 2.4K 4.02K 6.81K 12K 21.5K 35.7K 59K 102K 182K 309K 523K 909K
787 1.4K 2.43K 4.12K 6.98K 12.1K 22K 36K 60.4K 105K 187K 316K 536K 910K
806 1.43K 2.49K 4.22K 7.15K 12.4K 22.1K 36.5K 61.9K 107K 191K 324K 549K 931K
820 1.47K 2.55K 4.32K 7.32K 12.7K 22.6K 37.4K 62K 110K 192K 330K 560K 953K
825 1.5K 2.61K 4.42K 7.5K 13K 23.2K 38.3K 63.4K 113K 196K 332K 562K 976K
845 1.54K 2.67K 4.53K 7.68K 13.3K 23.7K 39K 64.9K 115K 200K 340K 576K 1.0M
866 1.58K 2.7K 4.64K 7.87K 13.7K 24K 39.2K 66.5K 118K 205K 348K 590K 1.5M
887 1.6K 2.74K 4.7K 8.06K 14K 24.3K 40.2K 68K 120K 210K 357K 604K 2.2M
909 1.62K 2.8K 4.75K 8.2K 14.3K 24.9K 41.2K 68.1K 121K 215K 360K 619K
910 1.65K 2.87K 4.87K 8.25K 14.7K 25.5K 42.2K 69.8K 124K 220K 365K 620K
931 1.69K 2.94K 4.99K 8.45K 15K 26.1K 43K 71.5K 127K 221K 374K 634K
953 1.74K 3.0K 5.1K 8.66K 15.4K 26.7K 43.2K 73.2K 130K 226K 383K 649K
976 1.78K 3.01K 5.11K 8.8K 15.8K 27K 44.2K 75K 133K 232K 390K 665K
576
1K 1.8K 3.09K 5.23K 8.87K 16K 27.4K 45.3K 76.8K 137K 237K 392K 680K
590 1.02K 1.82K 3.16K 5.36K 9.09K 16.2K 28K 46.4K 78.7K 140K 240K 402K 681K
604 1.05K 1.87K 3.24K 5.49K 9.1K 16.5K 28.7K 47K 80.6K 143K 243K 412K 698K
619 1.07K 1.91K 3.3K 5.6K 9.31K 16.9K 29.4K 47.5K 82K 147K 249K 422K 715K
620 1.1K 1.96K 3.32K 5.62K 9.53K 17.4K 30K 48.7K 82.5K 150K 255K 430K 732K
634 1.13K 2K 3.4K 5.76K 9.76K 17.8K 30.1K 49.9K 84.5K 154K 261K 432K 750K
649 1.15K 2.05K 3.48K 5.9K 10K 18K 30.9K 51K 86.6K 158K 267K 442K 768K
665 1.18K 2.1K 3.57K 6.04K 10.2K 18.2K 31.6K 51.1K 88.7K 160K 270K 453K 787K
680 1.2K 2.15K 3.6K 6.19K 10.5K 18.7K 32.4K 52.3K 90.9K 162K 274K 464K 806K
681 1.21K 2.2K 3.65K 6.2K 10.7K 19.1K 33K 53.6K 91K 165K 280K 470K 820K
698 1.24K 2.21K 3.74K 6.34K 11K 19.6K 33.2K 54.9K 93.1K 169K 287K 475K 825K
CHARACTERISTICS
Characteristics
DC. Resistance
Limits
Must be within the specified
tolerance.
Test Methods
( JIS C 5201-1 )
5.1 The limit of error of measuring apparatus
shall not exceed allowable range or 1% of
resistance tolerance
5.2 Natural resistance change per temp.
degree centigrade.
R
2
-R
1
x10
6
(PPM/°C)
R
1
(t
2
-t
1
)
R
1
: Resistance value at room temperature (t
1
)
R
2
: Resistance value at room temp.plus 100°C (t
2
)
5.5 Permanent resistance change after the
application of a potential of 2.5 times RCWV
for 5 seconds.
Temperature
coefficient
Within the temperature
coefficient specified below
±50 PPM / °C
Short time
overload
Resistance change rate is
± (5 % + 0.05Ω) Max. with no
evidence of mechanical damage
Dielectric
withstanding
voltage
No evidence of flashover
mechanical damage,arcing or
insulation break down.
5.7 Resistors shall be clamped in the trough
of a 90° metallic V-block and shall be tested
at AC potential respectively specified in the
table 1
5.8 Resistance change afther 10,000 cycles
(1 second “on”, 25 seconds “off”)
at 4 times RCWV
Pulse overload
Resistance change rate is
±(1% +0.05Ω) Max. with no
evidence of mechanical damage
XICON PASSIVE COMPONENTS • (800) 628-0544
XC-600046
Date Revised: 9/28/05
Metal Film Fixed Resistors
(RoHS Compliant)
CHARACTERISTICS
(Cont.)
Characteristics
Limits
Test Methods
( JIS C 5201-1 )
MF-RC Series
Terminal
strength
With no evidence of mechanical
damage.
6.1
Direct load
Resistance to a 2.5 kgs direct load for 10 secs.
in the direction of the longitudinal axis of the terminal leads.
Twist test :
Terminal leads shall be bent through 90° at a point of about
6mm from the body of the resistor and shall be rotated through 360°
about the original axis of the bent terminal in alternating direction
for a total of 3 rotations.
6.4 Permanent resistance change when leads
immersed to 3.2 to 4.8 mm from the body in
350 °C ± 10°C solder for 3 ± 0.5 seconds
6.5 The area covered with a new , smooth
clean , shiny and continuous surface free
from concentrated pinholes.
Test temp. of solder : 245°C ± 3°C
Dwell time in solder : 2 ~ 3 seconds
6.9 Specimens shall be immersed in a bath of
trichroethane completely for 3 minutes with
ultrasonic.
7.4 Resistance change after continuous
5 cycles for duty shown below:
StepTemperature
Time
1
-55°C ±3°C
2
Room temp.
3
+155°C ±2°C
4
Room temp.
7.9 Resistance change after 1,000 hours
operating at RCWV with duty cycle of
(1.5 hours "on", 0.5 hour "off") in a humidity
test chamber controlled at 40°C ± 2°C
and 90 to 95 % relative humidity
7.10 Permanent resistance change after
1,000 hours operating at RCWV with duty
cycle of ( 1.5 hours "on", 0.5 hour "off" ) at
70°C ± 2°C ambient
Resistance to
soldering heat
Resistance change rate is
± (1% + 0.05Ω) Max. with no
evidence of mechanical damage.
Solderability
95 % coverage Min.
Resistance to
solvent
No deterioration of protective
coatings and markings.
Temperature
cycling
Resistance change rate is
± (1% + 0.05Ω) Max. with no
evidence of mechanical damage.
30 mins
10~15 mins
30 mins
10~15 mins
Resistance value
Load life in
humidity
Normal type
∆R/R
± 1.5 %
Resistance value
Load life
Normal type
∆R/R
± 1.5 %
XICON PASSIVE COMPONENTS • (800) 628-0544
XC-600046
Date Revised: 9/28/05
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