Power Resistors combine power density and SFF design.

Press Release Summary:

Constructed from stamped metal alloy, 1 W-rated CRF1206 comes in 1206-size package. Inductance is under 5 nH, while resistance values are 0.01 and 0.02 W, with respective TCRs of +100 and +75 PPM/ºC. Overload conditions equivalent to 5X operating power can be tolerated for up to 5 sec. With power rating of 2 W, SMT CRM2512-FT comes in 2512-size package and meets ITU-T K.20, K.21, and K.45 basic test requirements within rated limits for telecom ports designed for MELT functionality.

Original Press Release:

Bourns Announces New Power Resistor Products

New Power Resistors Feature High Power Density and Small Form Factor Design

RIVERSIDE, Calif., June 29, 2009 - Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced the introduction of two new power resistor products that provide high power density in a small form factor designed to satisfy the growing demand for low-power, space-saving devices. Designated Bourns® models CRF1206 and CRM2512-FT, the new power resistors are also RoHS compliant. Bourns' CRF1206 power resistor is constructed from a stamped metal alloy boasting an extremely low one watt of power in an ultra small 1206 size package. Bourns' CRM2512-FT is a new surface mount power resistor that features a power rating of two watts in a small 2512 size package.

The small package size and low power features of Bourns' CRF1206 make it an ideal solution for power supplies and stepper motor drive applications. Bourns' CRF1206 features low inductance (less than 5 nH) and resistance values of 0.01 and 0.02 ohms with TCRs of +100 PPM/ºC and +75 PPM/ºC respectively. This new power resistor is also rated to handle overload conditions equivalent to five times the operating power for up to five seconds.

Bourns' CRM2512-FT power resistor meets ITU-T K.20, K.21 and K.45 basic test requirements within rated limits for telecom ports designed for Metallic Ended Line Test (MELT) functionality such as ADSL and VDSL2 hardware or for telecom line test equipment.

"Bourns' latest extension of the company's fixed resistors product line provides a viable solution for engineers facing the increasing challenge of designing highly integrated circuitry with low power consumption in ever smaller form factors," said Cathal Sheehan, product marketing manager for Bourns Resistive Products Division. "The company is committed to continuing the tradition of introducing the latest generation of power resistor products to help solve design challenges for designers and our OEM customers worldwide."
CRF1206 Technical Specifications
Specification Description
Power Rating @ 70 ºC 1 W
Operating Temperature Range -55 ºC to +170 ºC
Derated to Zero Load at +170 ºC
Maximum Working Voltage (P x R)1/2
Insulation Resistance > 100 megohms
Resistance Range 0.01 - 0.02 W
Resistance Tolerance +1 %

CRM2512-FT Technical Specifications
Specification Description
Power 2W
Resistance 10K to 1M Ohms (E24)
Working Voltage 300 V
Short Time Overload Voltage 600 V
Operating Temperature Range -55 ºC to +155 ºC
TCR +100 PPM/ºC

Pricing and Availability
Bourns' new power resistors are available now. As a pricing reference, Bourns' CRF1206 power resistor is priced from $0.25-$0.30 in 10,000 piece quantities and Bourns' CRM2512-FT power resistor is priced from $0.10-$0.14 in 8,000 piece quantities.

About Bourns
Bourns, Inc. is a leading manufacturer and supplier of automotive sensors, circuit protection solutions, magnetic products, microelectronic modules, precision potentiometers, panel controls and encoders and resistive products. Headquartered in Riverside, California, Bourns serves a broad range of markets, including telecommunications, computer, industrial, instrumentation, automotive, consumer, non-critical life support medical, audio and various other market segments. Bourns products are manufactured according to ISO-9000 standards under Six Sigma quality programs. Additional company and product information is available at the company's website at www.bourns.com.

*RoHs Directive 2002/95/EC Jan 27 2003 including Annex.

Bourns® and the Bourns logo are trademarks or registered trademarks of Bourns, Inc. and may be used publicly only with the permission of Bourns and require proper acknowledgement. Other listed names and brands are trademarks or registered trademarks of their respective owners.

Kelli Crimins
Keller Communication
949.481.6218 Tel
949.246.4410 Cell
866.857.9132 Fax

More from Sensors, Monitors & Transducers

All Topics