Coat-Insulated Fixed Carbon Film Resistors (Flame retardant coating)
■Construction
C
①
②
③
④
⑤
⑥
L
⑦
⑤ Electrode cap
⑥ Lead wire
⑦ Resistive film
φd
D
Coating color : Green
Marking : Color code
① Marking
② Flame retardant coating
③ Trimming line
④ Ceramic core
■Features
・
Equivalent to flame retardant coat. (UL94 V-0)
・
Automatic insertion is applicable.
・
Stronger in pulse resistance than chip resistors of the same
power.
・
The smaller type of 1/4W (CFPS 1/4) is available.
・
Products meet EU-RoHS requirements.
■Dimensions
Dimensions（mm）
Type
CFPS1/4
CFP1/4
CFPS1/2
CFPB1/2
L
3.2±0.2
6.1±0.5
6.3±0.5
9.0±1.0
C Max.
3.4
7.1
7.1
11.0
D
1.7
＋0.2
.
－0.1
2.3±0.3
2.85±0.3
3.5±0.5
d Nominal）
（
0.45
0.60
0.60
0.70
ℓ
※3
Standard
Long
14min.
※1
20min.
20min.
※2
－
－
Weight
（g）
（1000pcs）
80
160
290
520
■Reference Standards
Low Power Type Resistors
IEC 60115-2
JIS C 5201-2
※1 Forming code S is applied for bulk type.
※2 Long type is custom-made
※3 Lead length changes depending on taping and forming type.
Example
CFP
Product
Code
■Type Designation
1/4
Power
Rating
S1/4 : 0.25W
1/4 : 0.25W
S1/2 : 0.5W
B1/2 : 0.5W
C
Terminal
Surface Material
C : SnCu
T52
Taping &
Forming
See table
below
A
Packaging
A : AMMO
R : REEL
Nil : BOX
103
Nominal
Resistance
3 digits
J
Resistance
Tolerance
G: ±2%
J : ±5%
Contact us when you have control request for environmental hazardous material other than the substance specified
by EU-RoHS.
For further information on taping and forming, please refer to APPENDIX C on the back pages.
■Taping & Forming Matrix
Type
CFPS 1/4C
CFP 1/4C
CFPS 1/2C
CFPB 1/2C
Straight
S
※1
○
※1
○
—
—
Nil
※2
○
※2
○
○
○
T26
○
○
○
—
Axial Taping
T52
○
○
○
○
L52
—
○
—
○
VT
—
○
○
—
MT
○
—
—
—
Radial Taping
MHT
○
—
—
—
VTP
—
○
○
—
GT
—
○
○
—
M Forming
M5F
M10H
—
M12.5K
L Forming
—
L10A
—
L12.5A
■Ratings
Type
CFPS 1/4C
CFP 1/4C
CFPS 1/2C
CFPB 1/2C
Power
Rating
0.25W
0.25W
0.5W
0.5W
Resistance Range
（Ω）
（E24）
G：±2%
J：±5% ＋350∼−450
10½100K
2.2Ω½47kΩ
2.2Ω½100kΩ
2.2½1M
10½1M
2.2Ω½91kΩ
2.2Ω½100kΩ
T.C.R. ×10 /K）
（
−6
0∼−700
51kΩ½100kΩ
110kΩ½330kΩ
100kΩ½1MΩ
110kΩ½1MΩ
0∼−1000
110kΩ½330kΩ
360kΩ½1MΩ
—
—
0∼−1300
360kΩ½1MΩ
—
—
—
Max. Working Max. Overload
Voltage
Voltage
250V
300V
350V
400V
500V
600V
700V
800V
Dielectric
Withstanding
Voltage
300V
500V
700V
Taping & Q'ty/AMMO
（pcs）
T26A
T52A
L52A
5,000
3,000
—
2,000
2,000
2,000
—
—
2,000
Rated Ambient Temperature : ＋70℃
Operating Temperature Range : −55℃∼＋155℃
Rated voltage＝
√￣￣￣￣￣￣￣￣￣￣￣
or Max. working voltage, whichever is lower.
Power Rating×Resistance value
134
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
www.koaglobal.com
荷経減曲線
■Derating Curve
Percent rated power ％）
（
100
80
60
40
20
0
-60 -40 -20 0 20 40 60 80 100 120 140 160
-55
70
155
Ambient temperature
（℃）
For resistors operated at an ambient temperature of 70℃ or higher, the power shall be
derated in accordance with the above derating curve.
■Performance
Test Items
Resistance
T.C.R.
Overload Short time）
（
Resistance to soldering heat
Terminal strength
Rapid change of temperature
Moisture resistance
Endurance at 70℃
Resistance to solvent
Performance Requirements
ΔR±
（%＋0.05Ω）
Limit
Within specified tolerance
Typical
—
—
0.5
0.5
—
0.5
2.5
1.5
—
Measuring points are at 10mm±1mm from the end cap.
＋25℃/＋125℃
Rated voltage×2.5 or Max. overload vol., whichever is lower, for 5s
260℃±5℃, 10s±1s、350℃±10℃, 3.5s±0.5s
Twist 360°5 times
,
－55℃
（30min.）
/＋125℃
（30min.）5 cycles
40℃±2℃, 90%½95%RH, 1000h
1.5h ON/0.5h OFF cycle
70℃±2℃, 1000h
1.5h ON/0.5h OFF cycle
Ultrasonic washing with Isopropyl alcohol for 2 min.
2
Power：0.3W/cm , f：28kHz, Temp：35℃±5℃
Flame test：The test flame shall be applied and removed for
each 15 sec respectively to repeat the cycle 5 times.
Overload flame retardant : AC Voltage corresponding to
2, 4, 8, 16 and 32 times the power rating shall be applied
for each 1min. until disconnection occurs.
However the applied voltage shall not exceed 4 times the
maximum operating voltage.
Test Methods
外½寸法
Ｃ
Within specified T.C.R.
1
1
1
5
½
Low Power Type Resistors
Low Power Type Resistors
No lead-coming off and loose terminals
Ｌ
3
No abnormality in appearance.
Marking shall be easily legible.
Ｄ
Flame retardant
No evidence of flaming or
self-flaming.
—
■Precautions for Use
・
Ionic impurities such as flux etc. that are attached to these products or those mounted onto a PCB, negatively affect their moisture resistance, corrosion
resistance, etc. The flux may contain ionic substances like chlorine, acid, estc. Please wash them to get rid of these ionic substances especially when using lead-
free solder that may contain much of the said substances for improving a wetting characteristic. Using RMA solder or RMA flux, or well-washing is needed.
Also, attaching ionic substances such as perspiration, salt etc. by storage environments or mounting conditions/environments negatively affects their moisture
resistance, corrosion resistance etc. Please wash them to remove the ionic substances when they are polluted.
・
Be careful to handle these resistors because outer coatings are comparatively weak to outer shock due to flameproof special coats. Please wash them to a
minimum. No external force is given to the coating films until they are well dried because the coating films become weaker right after washing. The original
strength will be returned after they are dried, so please pay attention not to apply any external force onto the coating film of resistors for 20 minutes after
drying. Especially no PC boards shall be piled up.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
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