PCF
ceramic resistors for anti pulse surge
d
resistors
EU
features
KOA original bulk ceramic resistors
Coated with UL94V0 flameproof material
Excellent in anti-pulse characteristics
Non-inductive resistors
Marking: Light green body color with color-coded bands
Products with lead-free terminations
meet EU RoHS requirements
•
Higher reliability against disconnection compared
to wirewound resistors and film resistors
•
•
•
•
•
•
dimensions and construction
C
Inner
Electrode
Resistive Body
Type
PCF1/2
PCF1
PCF2
L
.354±.039
(9.0±1.0)
0.65±.039
(16.5±1.0)
.748±.039
(19.0±1.0)
Dimensions
inches
(mm)
C (max.)
D
d (nom.)
.437
(11.1)
.748
(19.0)
.886
(22.5)
.138±.02
(3.5±0.5)
.217±.039
(5.5±1.0)
.276±.039
(7.0±1.0)
.028
(0.7)
.031
(0.8)
l*
1.18±.118
(30.0±3.0)
1.50±.118
(38.0±3.0)
Coating Marking
ℓ
L
Lead
Electrode Wire
Cap
ℓ
* Lead length changes depending on taping type
D
ordering information
Part #
PCF
Type
PCF
1
Power
Rating
1/2: 0.5W
1: 1W
2: 2W
C
Termination
Material
C: SnCu
T631
Taping
1/2: T52
1: T631
2: T631
R
Packaging
R: Reel
103
Nominal
Resistance
2 significant
figures + 1
multiplier
K
Tolerance
K: ±10%
M: ±20%
For further information on packaging,
please refer to Appendix C.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/29/16
176
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
ceramic resistors for anti pulse surge
applications and ratings
Part
Designation
PCF1/2
PCF1
PCF2
Power
Rating
@ 70°C
0.5W
1.0W
2.0W
Resistance
Minimum
Absolute Absolute Absolute
Range
Dielectric
Maximum Maximum Maximum
Resistance
T.C.R.
Withstanding E-12 (±10%) Tolerance (ppm/°C) Working Overload
Pulse
E-6 (±20%)
Voltage
Voltage
Voltage
Voltage*
-900±300:
4.7Ω - 100KΩ
200V
400V
10kV
500V
R<100Ω
K: ±10%
300V
600V
14kV
3.3Ω - 390KΩ M: ±20% -1300±300:
700V
400V
800V
20kV
R≥100Ω
Rated
Ambient
Temp.
Operating
Temp.
Range
-40°C
to
+200°C
+70°C
* Resistance to pulse: change shall be ±5% of the pre-test values. 1 sec. ON, 1 second OFF, 10,000 cycles. The voltage is applied with maximum pulse voltage.
environmental applications
Derating Curve
100
80
% Rated Power
60
40
20
0
-60 -40 -20
For resistors operated at an
ambient temperature of 70°C
or above, a power rating shall
be derated in accordance with
the derating curve.
0
20 40 60 80 100 120 140 160 180 200
70
Ambient Temperature
(°C)
Performance Characteristics
Parameter
Requirement
∆
R ±(% + 0.05Ω)
Limit
Typical
Within regulated
to tolerance
—
Resistance
3.3Ω=<R<10Ω
10Ω=<R<100Ω
100Ω=<R=<390kΩ
Test Method
Measurement voltage
0.3V
1.0V
3.0V
Resistance
25°C
T.C.R
Voltage Coefficient
(Apply for over 1kΩ)
Overload
-900±300x10
-6
/K: R<100Ω
-1300±300x10
-6
/K: R≥100Ω —
0~-0.2%/V
2%
—
0.4%
+25°C/-40°C, +25°C/+75°C and +25°C/+125°C
Rated voltage and rated voltage x 10%
Rated voltage x 2.5 or maximum overload voltage for 5s, whichever less
The resistor mounted to the test circuit as below.
1 sec. ON and 1 sec. OFF. 10,000 cycles.
The voltage is applied with maximum
pulse voltage.
SW
1 sec OFF
C=1.000pF
Rx
(HPC: In
insulation oil)
1 sec ON
Protection
resistor
DC
(Max. pulse
voltage)
Resistance to pulse
5%
—
Resistance to soldering heat
Rapid change of temperature
Moisture resistance
Load life
Resistance to Solvent
2%
2%
5%
5%
No abnormality in
appearance. Marking
shall be easily legible.
0.8%
0.4%
0.6%
0.4%
—
350°C±10°C, 3.5s±0.5s
-40°C (30 min.)/+85°C (30 min.), 5 cycles
40°C±2°C, 90%~95%RH, 1000 hours, 1.5h ON/0, 5h OFF cycles
70°C±3°C, 1000h, 1.5h ON/0, 5h OFF cycles
Dipping in IPA or Xylene for 3 minutes and leaving for 10 minutes after removing drops,
then brushing 10 times.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
11/29/16
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
177
resistors
PCF
PCB Design
京公网安备 11010802033920号
EEWORLD
