Product Overview
The PCF series ceramic resistors are designed for anti-pulse surge applications, featuring KOA's original bulk ceramic resistor technology. These non-inductive resistors offer excellent in-pulse and inrush current characteristics, with a flame retardant coating equivalent to UL94V0. They provide higher reliability against disconnection compared to wirewound and film resistors and are AEC-Q200 tested. Products meet EU RoHS requirements, making them suitable for demanding environmental applications.
Product Attributes
- Brand: KOA
- Material: Ceramic
- Coating: Flame retardant (Equivalent of UL94V0)
- Certifications: EU RoHS compliant, AEC-Q200 Tested
- Reliability: Higher reliability against disconnection compared to wirewound and film resistors
Technical Specifications
| Model | Power Rating @ 70C | Resistance Range () | T.C.R. (x10-6/K) | Operating Temp. Range | Rated Ambient Temp. | Dielectric Withstanding Voltage (V) | Maximum Working Voltage (V) | Maximum Overload Voltage (V) | Dimensions (mm) L x C (max.) | Dimensions (mm) D (nom.) | Dimensions (mm) d | Dimensions (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCF1/2 | 0.5W | 4.7 - 100K | -500 ~ -1300 (3.3R<10) -600 ~ -1500 (10R<100) -700 ~ -1800 (100R<1k) -900 ~ -1900 (1kR<100k) -900 ~ -2000 (100kR<200k) -900 ~ -2200 (200kR390k) | -40C to +200C | +70C | 200V | 400V | 10kV (4.7R<10k) 4kV (10kR<100k) | 30.03.0 | 5.51.0 | 0.8 | 11.1 |
| PCF1 | 1.0W | 3.3 - 330K | -500~-1300:3.3R<10 -600~-1500:10R<100 -700~-1800:100R<1k -900~-1900:1kR<100k -900~-2000:100kR<200k -900~-2200:200kR390k | 300V | 600V | 14kV (3.3R<30k) 7kV (30kR<390k) | 38.03.0 | 7.01.0 | 0.7 | 19.0 | ||
| PCF2 | 2.0W | 4.7 - 100K | -500~-1300:3.3R<10 -600~-1500:10R<100 -700~-1800:100R<1k -900~-1900:1kR<100k -900~-2000:100kR<200k -900~-2200:200kR390k | 400V | 800V | 20kV (3.3R<10k) 11kV (10kR<390k) |
| Performance Characteristic | Requirement R ((% + 0.05)) | Limit Typical | Test Method |
|---|---|---|---|
| Resistance | Within regulated to tolerance | ||
| Resistance T.C.R. | +25C/-40C, +25C/+75C and +25C/+125C | ||
| Voltage Coefficient (Apply for over 1k) | 0~-0.2%/V | Rated voltage and rated voltage x 10% | |
| Overload | 2% | 0.4% | Rated voltage x 2.5 or maximum overload voltage for 5s, whichever less |
| Resistance to soldering heat | 2% | 0.8% | 350C10C, 3.5s0.5s |
| Rapid change of temperature | 2% | 0.4% | -40C (30 min.)/+85C (30 min.), 5 cycles |
| Moisture resistance | 5% | 0.6% | 40C2C, 90%~95%RH, 1000 hours, 1.5h ON/0, 5h OFF cycles |
| Load life | 5% | 0.4% | 70C2C, 1000h, 1.5h ON/0, 5h OFF cycles |
| Resistance to Solvent | No abnormality in appearance. Marking shall be easily legible. | Dipping in IPA or Xylene for 3 minutes and leaving for 10 minutes after removing drops, then brushing 10 times. |
| Type | Tolerance | Resistance Range () | T.C.R. (x10-6/K) | Power Rating @ 70C | Max. Pulse Voltage | Max. Working Voltage |
|---|---|---|---|---|---|---|
| PCF1/2 | K: 10% M: 20% | 4.7 - 100K | -500 ~ -1300: 3.3R<10 -600 ~ -1500: 10R<100 -700 ~ -1800: 100R<1k -900 ~ -1900: 1kR<100k -900 ~ -2000: 100kR<200k -900 ~ -2200: 200kR390k | 0.5W | 10kV: 4.7R<10k 10kV: 10kR<33k 10kV: 33kR<100k | 400V |
| PCF1 | K: 10% M: 20% | 3.3 - 330K | -500~-1300:3.3R<10 -600~-1500:10R<100 -700~-1800:100R<1k -900~-1900:1kR<100k -900~-2000:100kR<200k -900~-2200:200kR390k | 1.0W | 14kV: 3.3R<30k 14kV: 30kR<390k | 600V |
| PCF2 | K: 10% M: 20% | 4.7 - 100K | -500~-1300:3.3R<10 -600~-1500:10R<100 -700~-1800:100R<1k -900~-1900:1kR<100k -900~-2000:100kR<200k -900~-2200:200kR390k | 2.0W | 20kV: 3.3R<10k 20kV: 10kR<390k | 800V |
Ordering Information Example: PCF 1 C R 103 K T631
PCF = Series
1 = Power Rating (1/2: 0.5W, 1: 1W, 2: 2W)
C = Termination Material (SnCu)
R = Packaging (Reel)
103 = Nominal Resistance (10 x 10^3 = 10k)
K = Tolerance (10%)
T631 = Taping
Note: For further information on packaging, please refer to Appendix C.
2411220016_KOA-PCF2CT631R4R7K_C20097620.pdf
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