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Pulse Power Resistors

Present-day electronic devices are often faced with short-term increases in voltage or current such as inrush current during electronics turn-on, transient load when transformers or motors are energized, capacitor charging or discharging, electrostatic discharge sparks, lightning strikes or overcurrent caused by malfunction of the circuit or mixed up lines.

Bourns provides a wide selection of resistors able to withstand such short duration impulse events, up to rated limits.

The maximum pulse capability of the resistors is specified in each product data sheet.

The pulse power and pulse energy graph below shows the maximal power or energy to be applied to the resistor over a given time period.

cmp_surge_performance

Example of CMP Series Thick Film Chip Resistor Peak Pulse vs. Duration

The following surge performance curve shows the maximal peak voltage for a 1.2 / 50 µs pulse according to the IEC 61000-4-5 standard.

ws_surge_performance

Example of WS Series Wirewound Resistor Peak Voltage vs. Resistance

surge_plot

1.2 / 50 µs Surge Defined by IEC 61000-4-5

Available features

Thick film chip resistors
Wirewound SMT resistors
Wirewound axial resistors
Sulfur-resistant designs available
AEC-Q200 compliancy available
Tested according to IEC 61000-4-5
RoHS compliant*
Suitable for most types of soldering processes
Standard packaging in tape and reel, and ammo pack

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Applications

Consumer
Industrial
Telecom
Smart meters
Power supplies
Inverters
Inrush current limiting
Capacitor charge/discharge
Bleeder circuits

Documents

Specifications

Product Series

Parametric Table

RoHS Files

Collateral

Videos

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Series	Resistance Range	Tolerances	Temperature Coefficient	Power per Resistor	Physical Configuration	MDS	Design Files	Buy Now
CRS0805	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	0.25 W	Thick Film Chip	CRS0805 Series	Downloads	Buy
CRS1206	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	0.5 W	Thick Film Chip	CRS1206	Downloads	Buy
CRS2010	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	1 W	Thick Film Chip	CRS2010 Series	Downloads	Buy
CRS2512	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	2 W	Thick Film Chip	CRS2512	Downloads	Buy
CRS0603A	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	0.125 W	Thick Film Chip	CRS0603A	Downloads	Buy
CRS0805A	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±150 ppm/±200 ppm	0.25 W	Thick Film Chip	CRS0805A	Downloads	Buy
CRS1206A	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	0.5 W	Thick Film Chip	CRS1206A	Downloads	Buy
CRS1210A	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	0.5 W	Thick Film Chip	CRS1210A	Downloads	Buy
CRS2010A	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	1 W	Thick Film Chip	CRS2010A	Downloads	Buy
CRS2512A	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	2 W	Thick Film Chip	CRS2512A	Downloads	Buy
CMP0603	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	0.25 W	Thick Film Chip	CMP0603	Downloads	Buy
CMP0805	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	0.5 W	Thick Film Chip	CMP0805	Downloads	Buy
CMP1206	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	0.75 W	Thick Film Chip	CMP1206	Downloads	Buy
CMP2010	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	1 W	Thick Film Chip	CMP2010	Downloads	Buy
CMP2512	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	1.5 W	Thick Film Chip	CMP2512	Downloads	Buy
CMP0603A	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	0.25 W	Thick Film Chip	CMP0603A	Downloads	Buy
CMP0805A	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	0.5 W	Thick Film Chip	CMP0805A	Downloads	Buy
CMP1206A	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	0.75 W	Thick Film Chip	CMP1206A	Downloads	Buy
CMP2010A	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	1 W	Thick Film Chip	CMP2010A	Downloads	Buy
CMP2512A	10 Ω to 1 MΩ	1 % 5 %	±100 ppm ±200 ppm	1.5 W	Thick Film Chip	CMP2512A	Downloads	Buy
CHP0805	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±150 ppm/±200 ppm	0.5 W	Thick Film Chip	CHP0805	Downloads	Buy
CHP1206	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	0.75 W	Thick Film Chip	CHP1206	Downloads	Buy
CHP2512	0.1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	3 W	Thick Film Chip	CHP2512	Downloads	Buy
CHP0603	1 Ω to 1 MΩ	1 % / 5 %	±100 ppm/±200 ppm	0.33 W	Thick Film Chip	CHP0603	Downloads	Buy
CHP0603A	10 mΩ to 1 MΩ	1 % 5 %	±100 ppm/±200 ppm	0.33 W	Thick Film Chip	CHP0603-A	Downloads	Buy
CHP0805A	10 mΩ to 1 MΩ	1 % 5 %	±100 ppm/±150 ppm/±200 ppm	0.5 W	Thick Film Chip	CHP0805-A	Downloads	Buy
CHP1206A	10 mΩ to 1 MΩ	1 % 5 %	±100 ppm/±200 ppm	0.75 W	Thick Film Chip	CHP1206-A	Downloads	Buy
CHP2512A	10 mΩ to 1 MΩ	1 % 5 %	±100 ppm/±200 ppm	3 W	Thick Film Chip	CHP2512-A	Downloads	Buy
PWR2010	0.1 to 1K Ω	0.5 % / 1 % / 5 %	±20 to ±90 ppm	0.5 W	Surface Mount Wirewound		Downloads	Buy
PWR2615	0.01 to 3k Ω	1 % / 5 %	±20 to ±150 ppm	1 W	Surface Mount Wirewound	PWR2615	Downloads	Buy
PWR3014	0.1-4K ohms	0.5 %,1 %, 5 %	±20 to ±90 ppm	1 W	Surface Mount Wirewound		Downloads	Buy
PWR4318	0.1-8K ohms	0.5 %,1 %, 5 %	±20 to ±90 ppm	2 W	Surface Mount Wirewound		Downloads	Buy
PWR4525	0.01-15k ohms	1 %, 5 %	±20 to ±150 ppm	2 W	Surface Mount Wirewound	PWR4525	Downloads	Buy
PWR5322	0.1-15K ohms	0.5 %,1 %, 5 %	±20 to ±90 ppm	3 W	Surface Mount Wirewound		Downloads	Buy
FW Series Fusible	4.7 to 100 Ω	5 %	±200 ppm	1, 2, 3, 5, 7 W	Through-hole Axial Wirewound	FW Series	Downloads	Buy (FW1) Buy (FW2) Buy (FW3) Buy (FW5) Buy (FW7)
W Series	15 to 150 Ω	5 %	±300 ppm	1-10 W	Axial	W Series	Downloads	Buy (W1M) Buy (W2M) Buy (W3M) Buy (W5M) Buy (W7M) Buy (W9M) Buy (W10)
WS Series Surge Withstand	15 Ω to 3.3 kΩ	5 %	±200 ppm	1-8 W	Through-hole Axial Wirewound		Downloads	Buy (WS1) Buy (WS) Buy (WS2) Buy (WS3) Buy (WS5) Buy (WS7) Buy (WS8)
BR/BRT	0.1-1K Ω	1 %, 5 %, 10 %	< 260 PPM/°C	60 - 500 W	High Power Metal Clad Braking Resistor	TBD	Downloads	Buy (BR) Buy (BRT)
BRS	1-1K Ω	1 %, 5 %, 10 %	< 260 PPM/°C	100 - 500 W	Slim Profile High Power Metal Clad Braking Resistor	TBD	Downloads	Buy
UWP	1-1K Ω	1 %, 5 %	< 260 PPM/°C	20 - 100 W	High Power Ceramic Wirewound Resistor	TBD	Downloads	Buy