Carbon Composite Energy Absorption Resistors | PCB Energy Absorption Resistor Solutions for High-Pulse Power Systems
Looking for a rugged, high-frequency energy-absorption resistor that mounts directly to your PCB? Our carbon-composite energy-absorption resistors—also marketed as PCB energy-absorption resistors—are engineered for designers who need to clamp mega-watt pulses without adding inductance or bulk.
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Why Engineers Choose Our Carbon Composite PCB Energy Absorption Resistors
• Truly Non-Inductive – Graphite/Al₂O₃ bulk construction keeps ESL <1 nH; usable to MHz frequencies.
• Extreme Pulse Load Handling – Single-shot 2.8 kJ (CZ series) or 1.4 kJ (CY series) in a 25 mm footprint.
• UL94-V0 Epoxy Seal – Moisture-proof and 150 °C continuous rated; survives traction and induction-heating environments.
• Drop-In PCB Footprints – Standard 0.8–1.0 mm leads on 12.5–27 mm spacing; no heatsink required for sub-second pulses.
• Extreme Pulse Load Handling – Single-shot 2.8 kJ (CZ series) or 1.4 kJ (CY series) in a 25 mm footprint.
• UL94-V0 Epoxy Seal – Moisture-proof and 150 °C continuous rated; survives traction and induction-heating environments.
• Drop-In PCB Footprints – Standard 0.8–1.0 mm leads on 12.5–27 mm spacing; no heatsink required for sub-second pulses.
Typical Applications
- Power-transmission surge dumps
- Traction inverter snubbers
- Pulse-power modulators
- Induction-heating crowbars
Part Number Decoder (example: CY-50R-10%)
CY = Series
50R = 50 Ω nominal
10 % = ±10 % tolerance
50R = 50 Ω nominal
10 % = ±10 % tolerance
Quick-Select Table – Carbon Composite PCB Energy Absorption Resistors
| Series | Resistance Range | Rated Power @25 °C | Max Energy (J) | L×D (mm) | Lead Dia. |
|---|---|---|---|---|---|
| CW | 6 Ω–1.5 kΩ | 2.5 W | 400 | 20×13 | 0.8 mm |
| CX | 2 Ω–400 Ω | 3.5 W | 700 | 15×21 | 1.0 mm |
| CY | 2 Ω–700 Ω | 4.5 W | 1 400 | 25×21 | 1.0 mm |
| CZ | 2 Ω–500 Ω | 5.5 W | 2 800 | 30×26 | 1.0 mm |
Derating & Pulse Equations
Use the industry-standard formulas printed on the datasheet to calculate maximum pulse voltage for 1.2/50 µs, 10/1 000 µs, or 500/5 000 µs waveforms—critical when sizing the carbon composite energy absorption resistor for your PCB energy-absorption stage.
Use the industry-standard formulas printed on the datasheet to calculate maximum pulse voltage for 1.2/50 µs, 10/1 000 µs, or 500/5 000 µs waveforms—critical when sizing the carbon composite energy absorption resistor for your PCB energy-absorption stage.
Ordering Information
Standard tolerance is ±10 % or ±20 %; tighter tolerances, custom leads, and special temperature coefficients are available on request. Sample kits ship within 48 hours.
Standard tolerance is ±10 % or ±20 %; tighter tolerances, custom leads, and special temperature coefficients are available on request. Sample kits ship within 48 hours.
Call to Action
Stop hunting for oversized wire-wounds—our carbon composite PCB energy absorption resistors deliver kilojoules of energy dumping in a compact, solder-friendly package. Request the datasheet or order samples today and see why power-supply OEMs trust our carbon composite technology for mission-critical pulses.
Stop hunting for oversized wire-wounds—our carbon composite PCB energy absorption resistors deliver kilojoules of energy dumping in a compact, solder-friendly package. Request the datasheet or order samples today and see why power-supply OEMs trust our carbon composite technology for mission-critical pulses.
https://www.eak.sg/product/high-power-carbon-composite-energy-absorbing-resistor-for-pcb-applications/
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