PCF
ceramic resistors for anti pulse surge
EU
resistors
features
•
•
•
•
•
KOA original bulk ceramic resistors
Coated with UL94V0 flameproof material
Excellent in anti-pulse characteristics
Non-inductive resistors
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
d
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
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%
taping
Type
PCF1/2
PCF1
PCF2
—
—
Contact us for lead forming details.
Axial Taping
T52
T631
—
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.
11/21/17
186
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
PCF
ceramic resistors for anti pulse surge
resistors
applications and ratings
Part
Designation
PCF1/2
PCF1
PCF2
Power
Rating
@ 70°C
0.5W
1.0W
3.3 - 390K
2.0W
Resistance Range (Ω)
K: ±10%
E-12
4.7 - 100K
M: ±20%
E-6
4.7 - 100K
T.C.R.
(x10
-6
/K)
Maximum Maximum Dielectric
Rated Operating
Working Overload Withstanding Ambient
Temp.
Voltage
Voltage
Voltage
Temp.
Range
200V
300V
400V
400V
500V
600V
800V
700V
+70°C
-40°C
to
+200°C
-500 ~ -1300: 3.3Ω≤R<10Ω
-600 ~ -1500: 10Ω≤R<100Ω
-700 ~ -1800: 100Ω≤R<1kΩ
-900 ~ -1900: 1kΩ≤R<100kΩ
3.3 - 390K -900 ~ -2000: 100kΩ≤R<200kΩ
-900 ~ -2200: 200kΩ≤R≤390kΩ
Rated Voltage =
√
Power Rating x Resistance Value or Maximum Working Voltage, whichever is lower.
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
-500~-1300:3.3Ω≤R<10Ω
-600~-1500:10Ω≤R<100Ω
-700~-1800:100Ω≤R<1kΩ
-900~-1900:1kΩ≤R<100kΩ
-900~-2000:100kΩ≤R<200kΩ
-900~-2200:200kΩ≤R≤390kΩ
Test Method
Resistance
3.3Ω=<R<10Ω
10Ω=<R<100Ω
100Ω=<R=<390kΩ
Measurement voltage
0.3V
1.0V
3.0V
Resistance
—
25°C
T.C.R
—
+25°C/-40°C, +25°C/+75°C and +25°C/+125°C
Voltage Coefficient
(Apply for over 1kΩ)
Overload
0~-0.2%/V
—
0.4%
Rated voltage and rated voltage x 10%
Rated voltage x 2.5 or maximum overload voltage for 5s, whichever less
SW
1 sec OFF
1 sec ON
2%
The resistor mounted to the test circuit as below is applied with high voltage
impulse 10,000 cycles.
Type
Test Voltage
Performance
Requirements
∆
R ±(% + 0.05Ω)
5
10
25
5
5
10
5
5
10
5
Protection
resistor
DC
(Max. pulse
voltage)
Resistance to pulse
Refer to the table on
the right
—
10kV:4.7Ω≤R<10kΩ
PCF1/2
10kV:10kΩ≤R<33kΩ
10kV:33kΩ≤R<100kΩ
4kV:10kΩ≤R<100kΩ
14kV:3.3Ω≤R<30kΩ
PCF1
14kV:30kΩ≤R<390kΩ
7kV:30kΩ≤R<390kΩ
20kV:3.3Ω≤R<10kΩ
PCF2
20kV:10kΩ≤R<390kΩ
11kV:10kΩ≤R<390kΩ
C=1.000pF
Rx
(HPC: In
insulation oil)
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±2°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.
12/19/17
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
187
Embedded System
京公网安备 11010802033920号
EEWORLD
