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.
Product Attributes
- Brand: KOA
- Material: Ceramic
- Coating: Flame retardant (Equivalent of UL94V0)
- Certifications: EU RoHS compliant, AEC-Q200 Tested
- Resistance Type: Non-inductive
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 (kV) | Dimensions (mm) L x C (max.) x D (nom.) x d |
|---|---|---|---|---|---|---|---|---|---|
| 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 | 200 | 400 | 10kV (3.3R<10k) 14kV (30kR<390k) 20kV (3.3R<10k) | L: 1.18.118 (30.03.0) C (max.): 0.437 (11.1) D (nom.): 0.276.039 (7.01.0) d: 0.031 (0.8) |
| 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 | -40C to +200C | +70C | 300 | 600 | 10kV (10kR<33k) 7kV (30kR<390k) 11kV (10kR<390k) | L: 1.50.118 (38.03.0) C (max.): 0.748 (19.0) D (nom.): 0.437 (11.1) d: 0.028 (0.7) |
| 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 | -40C to +200C | +70C | 400 | 800 | 10kV (33kR<100k) 5kV (10kR<100k) 5kV (30kR<390k) 20kV (10kR<390k) | L: 0.886 (22.5) C (max.): 0.886 (22.5) D (nom.): 0.354.039 (9.01.0) d: 0.028 (0.7) |
Ordering Information Example: PCF1 C R 103 K
- Type: PCF
- Power Rating: 1/2 (0.5W), 1 (1W), 2 (2W)
- Termination Material: C (SnCu)
- Packaging: R (Reel)
- Tolerance: K (10%), M (20%)
- Nominal Resistance: 3 significant figures + 1 multiplier (e.g., 103 = 10k)
Performance Characteristics:
| Parameter | Requirement R ((% + 0.05)) | Limit | Typical | Test Method |
|---|---|---|---|---|
| Resistance T.C.R. | Within regulated to tolerance | +25C/-40C, +25C/+75C and +25C/+125C | ||
| Voltage Coefficient (Apply for over 1k) | 0~-0.2%/V | Rated voltage and rated voltage x 10% | ||
| Resistance Measurement voltage | 3.3=| | | ||
| Overload | 2% | 0.4% | Rated voltage x 2.5 or maximum overload voltage for 5s, whichever less | |
| Resistance to pulse | Refer to the table on the right | The resistor mounted to the test circuit as below is applied with high voltage impulse 10,000 cycles. | ||
| 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. |
Derating Curve: For resistors operated at an ambient temperature of 70C or above, a power rating shall be derated in accordance with the derating curve.
2411220016_KOA-PCF2CT631R821K_C20097632.pdf
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