RESISTORS
TECHNOLOGY OF TOMORROW
STANDARD
CF • CFP
(RD • RDF)
STRUCTURE
1
2
3
4
5
6
7
Ceramic core
Trimmed carbon film
Steel cap
(Cu, Sn plated)
Lead wire
Welding joint
Epoxy resin overcoating
Marking
IDENTIFICATION
PRODUCT CODE
CFS 1/4
CF 1/4, CFB 1/2
CFS 1/2
CFP series
COATING COLOR
Ivory
Venetian Red
Green
MARKING
Color Code
(R-value
and
tolerance)
Products with Pb-free terminations
meet RoHS requirements
TYPE DESIGNATION (HOW TO ORDER)
Old Part No.
New Part No.
(Pb-free)
RD
CF
PRODUCT CODE
25S
1/4
POWER RATING
S1/4(16S):0.25W
1/4(25S):0.25W
B1/2(50S):0.5W
S1/2(50SS):0.5W
J
C
RESISTANCE
TERMINATION
SURFACE MATERIAL TOLERANCE
C: SnCu
L: Sn/Pb
T52
T52
TAPING &
FORMING
A
A
PACKAGING
A: Ammo
R: Reel
*
10K
103
NOMINAL
RESISTANCE
3 digits
J
RESISTANCE
TOLERANCE
G: ±2%
J: ±5%
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
*Please see “PACKAGING”
FEATURES
■
■
■
■
■
■
■
■
General purpose lead-type resistor
Automatic insertion is applicable
Various types of forming are available
Stronger in pulse resistance than chip resistors of the same power
CFP = Flame retardant coating (UL94 V-0)
CF (P) S = Reduced size
Rated ambient temperature: +70°C
Operating temperature range: -55°C ... +155°C
DIMENSIONS (mm)
TYPE
CF (P) S 1/4
CF 1/4
CFP 1/4
CF (P) B 1/2
CF (P) S 1/2
L
3.2 ± 0.2
6.1 ± 0.5
6.3 ± 0.5
9.0 ± 1.0
6.3 ± 0.5
C Max.
3.4
7.1
11.0
7.1
1.7
D
+ 0.2
- 0.1
d (nom.)
0.45
0.6
0.7
0.6
l
2.3 ± 0.3
3.5 ± 0.5
2.85 ± 0.3
20 Min.
SURFACE TEMPERATURE RISE
LOAD LIFE AT +70°C/1000h
DERATING CURVE
Percent rated power (%)
Ambient temperature (°C)
RATING
DIN
SIZE
0204
0207
0411
0307
0204
0207
0411
0307
TYPE
CFS 1/4
CF 1/4
CFB 1/2
CFS 1/2
CFPS 1/4
CFP 1/4
CFPB 1/2
CFPS 1/2
POWER
RATING*
+350... -450
0.25 W
0.25 W
0.5 W
0.5 W
0.25 W
0.25 W
0.5 W
0.5 W
2.2Ω...47kΩ
T.C.R.
(ppm/K)
0... -700
51kΩ...100kΩ
0... -1000
110kΩ...330kΩ
0... -1300
360kΩ...1MΩ
MAX.
MAX.
WORKING
OVERLOAD
VOLTAGE
VOLTAGE
250 V
300 V
400 V
350 V
250 V
300 V
400 V
350 V
500 V
600 V
800 V
700 V
500 V
600 V
800 V
700 V
DIELECTRIC
WITH-
STANDING
VOLTAGE
300 V
500 V
700 V
300 V
500 V
700 V
RESISTANCE RANGE
E24
G (±2%)
10Ω... 330kΩ
J (±5%)
2.2Ω ... 1MΩ
2.2Ω...100kΩ 110kΩ...330kΩ
2.2Ω...100kΩ
2.2Ω...91kΩ
2.2Ω...47kΩ
110kΩ...1MΩ
100kΩ...1MΩ
51kΩ...100kΩ
360kΩ...1MΩ 1.1MΩ...5.1MΩ
1.1MΩ...2.2MΩ 2.4MΩ...5.1MΩ
1.1MΩ...2.2MΩ 2.4MΩ...5.1MΩ
110kΩ...330kΩ
360kΩ...1MΩ
–
–
360kΩ...1MΩ
–
–
–
10Ω...1MΩ
2.2Ω... 5.1MΩ
10Ω...100kΩ
2.2Ω... 1MΩ
2.2Ω...100kΩ 110kΩ...330kΩ
2.2Ω...100kΩ
2.2Ω ~ 91kΩ
110kΩ...1MΩ
100kΩ...1MΩ
10Ω...1MΩ
*For resistors operated in ambient temperature over +70°C, power rating shall be derated.
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
Revision: 5. Nov. 2004
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