Product Overview
The PCF series of ceramic resistors are designed for anti-pulse surge applications, offering superior in-pulse and inrush current characteristics. These KOA original bulk ceramic resistors feature a flame-retardant coating (UL94V0 equivalent) and are non-inductive. They provide higher reliability against disconnection compared to wirewound and film resistors and meet EU RoHS requirements. All PCF resistors are AEC-Q200 tested, making them suitable for demanding environmental applications.
Product Attributes
- Brand: KOA
- Material: Bulk Ceramic Resistors
- Coating: Flame Retardant (UL94V0 equivalent)
- 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 (kV) | 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 10kV: 10kR<33k 10kV: 33kR<100k 4kV: 10kR<100k | 1.18.118 (30.03.0) | .276.039 (7.01.0) | .031 (0.8) | .138.02 (3.50.5) |
| 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 | 300V | 600V | 14kV:3.3R<30k 14kV:30kR<390k 7kV:30kR<390k | 1.50.118 (38.03.0) | .437 (11.1) | .028 (0.7) | .217.039 (5.51.0) |
| 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 | -40C to +200C | +70C | 400V | 800V | 20kV:3.3R<10k 20kV:10kR<390k 11kV:10kR<390k | .748.039 (19.01.0) | .886 (22.5) | .028 (0.7) | .354.039 (9.01.0) |
| Performance Parameter | Requirement R ((% + 0.05)) | Limit | Typical | Test Method |
|---|---|---|---|---|
| Resistance | Within regulated to tolerance | |||
| 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% | ||
| 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 | |||
| 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 | Resistance Change R ((% + 0.05)) | Pulse Test Voltage |
|---|---|---|
| PCF1/2 | 5 | 10kV: 4.7R<10k 10kV: 10kR<33k 10kV: 33kR<100k 4kV: 10kR<100k |
| PCF1 | 10 | 14kV:3.3R<30k 14kV:30kR<390k 7kV:30kR<390k |
| PCF2 | 5 | 20kV:3.3R<10k 20kV:10kR<390k 11kV:10kR<390k |
Ordering Information Example: PCF1 C R 103 K (Type, Termination Material, Packaging, Resistance, Tolerance)
Ordering Information Key:
- Type: PCF1/2, PCF1, PCF2
- Power Rating: 1/2 (0.5W), 1 (1W), 2 (2W)
- Nominal Resistance: 2 significant figures + 1 multiplier (e.g., 103 = 10 x 103 = 10k)
- Tolerance: K (10%), M (20%)
- Packaging: R (Reel)
- Taping: T52, T631 (Axial)
- Termination Material: C (SnCu)
For further information on packaging, please refer to Appendix C.
2411220016_KOA-PCF2CT631R393K_C20097612.pdf
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