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ceramic resistor KOA PCF2CT631R473K featuring flame retardant UL94V0 coating and EU RoHS compliance

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Product Description

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. Products meet EU RoHS requirements and are AEC-Q200 tested, making them suitable for demanding environmental applications.

Product Attributes

  • Brand: KOA
  • Resistor Type: Ceramic
  • Coating: Flame retardant (Equivalent of UL94V0)
  • Certifications: EU RoHS compliant, AEC-Q200 Tested
  • Termination Material: SnCu

Technical Specifications

Model Power Rating @ 70C Resistance Range () T.C.R. (x10-6/K) Operating Temp. Range Rated Ambient Temp. Maximum Working Voltage (V) Dielectric Withstanding Voltage (V) Maximum Overload Voltage (kV)
PCF1/2 0.5W 4.7 - 100K -500 ~ -1300: 3.3R-600 ~ -1500: 10R-700 ~ -1800: 100R-900 ~ -1900: 1kR-900 ~ -2000: 100kR-900 ~ -2200: 200kR390k -40C to +200C +70C 200V 400V 10kV: 4.7R10kV: 10kR14kV: 3.3R
PCF1 1.0W 3.3 - 330K -600 ~ -1500: 10R-700 ~ -1800: 100R-900 ~ -1900: 1kR-900 ~ -2000: 100kR-900 ~ -2200: 200kR390k 300V 600V 10kV: 10kR14kV: 30kR20kV: 3.3R
PCF2 2.0W 4.7 - 100K -700 ~ -1800: 100R-900 ~ -1900: 1kR-900 ~ -2000: 100kR-900 ~ -2200: 200kR390k 400V 800V 10kV: 33kR14kV: 30kR20kV: 10kR

Dimensions and Construction

Type L (max.) C (max.) D (nom.) d (nom.) (inches/mm)
PCF1/2 1.18.118 (30.03.0) 0.65.039 (16.51.0) 0.748.039 (19.01.0) .031 (0.8) .276.039 (7.01.0)
PCF1 1.50.118 (38.03.0) 0.748.039 (19.01.0) .886 (22.5) .028 (0.7) .354.039 (9.01.0)
PCF2 .437 (11.1) .217.039 (5.51.0) .748 (19.0) .031 (0.8) .138.02 (3.50.5)

Performance Characteristics

Parameter Requirement Typical Test Method
Resistance Within regulated to tolerance
Resistance T.C.R. R (% + 0.05) 5 (PCF1/2), 5 (PCF1), 5 (PCF2) +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.
Resistance to pulse R (% + 0.05) 10 (PCF1/2), 10 (PCF1), 10 (PCF2) The resistor mounted to the test circuit as below is applied with high voltage impulse 10,000 cycles.

Ordering Information Structure

Format: PCF [Power Rating] [Termination Material] [Packaging] [Tolerance]

Example: PCF 1 C R T631 103 K

  • 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)
  • Taping: T52, T631

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Beijing Silk Road Enterprise Management Services Co., Ltd.
Location 16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person Sellina

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