Products

From standard component to individual customer solution – we develop and produce resistor materials and low ohmic resistors on the highest level.

SMD-Mounting

Products and Details

SMD stands for surface-mounted-device. By their connecting surfaces the SMD-components are soldered directly on a PCB. Our precision and power resistor in the field of SMD-mounting offer many advantages in standard sizes.

Features

Permanent power up to 10 W
Constant currents up to 220 A
Small size, e.g. 0805 or 1206
Very high pulse power rating
Very good long-term stability
Low TC
Extremely low R_thi
Components mounting: Reflow- and IR-soldering, (conductive adhesive) bonding
Mainly standard-soldering-pad-geometry
Many components with AEC-Q200-qualification
RoHS compliant

Advantages

Very low thermal EMF versus copper (under 1 µV/K)
Large soldering and contact field
High mechanical strength of the solder joint
Impervious to thermocycling

_{all information represents the best possible values}

Type/ series	Type	Description	Connector style	Power	Tolerance	Resistance (min)	Resistance (max)	TC
BRS	BRS	2-terminal-resistors made of composite material. Perfectly suitable for the use on DBC or ceramic. Space-saving design.	3812	2 W	1 %	0.002 Ω	0.025 Ω	100 ppm/K
BVx	BVB	4-terminal-resistors made of composite material. Perfectly suitable for the use on DBC or ceramic. Space-saving design.	2725	5 W	1 %	0.0002 Ω	0.005 Ω	20 ppm/K
BVx	BVE	2-termimal-resistors with large connectors for high performance.	5930	10 W	1 %	0.0002 Ω	0.002 Ω	50 ppm/K
BVx	BVH	Heavy copper connectors	3820	5 W	3 %	0.0003 Ω	0.002 Ω	300 ppm/K
BVx	BVR	4-terminal-resistors made of composite material. Perfectly suitable for the use on DBC.	4026	5 W	1 %	0.0002 Ω	0.003 Ω	20 ppm/K
BVx	BVS	2-terminal-resistors made of composite material	3920	5 W	1 %	0.0002 Ω	0.005 Ω	50 ppm/K
BVx	BVS-K-R000	Powerbridge / Jumper.	3920			0.0001 Ω		3800 ppm/K
BVx	BVT	2-terminal-resistors made of composite material.	2512	3 W	1 %	0.0003 Ω	0.0068 Ω	50 ppm/K
BVx	BVT-K-R000	Powerbridge / Jumper.	2512			0.0001 Ω		3800 ppm/K
LMx	LMP	2-terminal-resistors for flip-chip-mounting.	2010	2 W	1 %	0.01 Ω	0.5 Ω	50 ppm/K
LMx	LMS	2-terminal-resistors flip-chip-mounting.	2512	3 W	1 %	0.005 Ω	0.5 Ω	50 ppm/K
PMx**	PMA	4-terminal-resistors for flip-chip-mounting. Contacts in SnPb. _{** NOT RoHS compliant}	3924	3 W	1 %	0.002 Ω	0.5 Ω	30 ppm/K
SMx	SMK	2-terminal-resistors with large solder pads.	1206	1 W	1 %	0.003 Ω	0.55 Ω	50 ppm/K
SMx	SMK-R000	Powerbridge / Jumper.	1206	0.5 W		0.0002 Ω		3800 ppm/K
SMx	SMP	2-terminal-resistors with large solder pads.	2010	2 W	0.5 %	0.005 Ω	1 Ω	50 ppm/K
SMR	SMR	2-terminal-resistors for high pulse load.	4723	5 W	0.5 %	0.01 Ω	4.7 Ω	50 ppm/K
SMR	SMR-R000	Powerbridge / Jumper.	4723	3 W		0.0003 Ω		3800 ppm/K
SMx	SMS	2-terminal-resistors with large solder pads.	2512	3 W	0.5 %	0.005 Ω	2 Ω	50 ppm/K
SMx	SMS-R000	Powerbridge / Jumper. Standard solder padgeometry.	2512	2 W		0.0002 Ω		3800 ppm/K
SMx	SMT	2-terminal-resistors with large solder pads.	2817	5 W	0.5 %	0.005 Ω	4 Ω	50 ppm/K
SMx	SMT-R000	Powerbridge / Jumper. Standard solder pad-geometry.	2817	2 W		0.0002 Ω		3800 ppm/K
SMV	SMV	4-terminal-resistors for high pulse load.	4723	5 W	0.5 %	0.001 Ω	1 Ω	30 ppm/K
VLx	VLK	2-terminal-resistors. Large solder pads. Very low resistance values.	0612	1 W	1 %	0.001 Ω	0.005 Ω	50 ppm/K
VLx	VLP	2-terminal-resistors. Long side terminated. Large solder pads. Very low resistance values.	1020	2 W	1 %	0.001 Ω	0.2 Ω	50 ppm/K
VMx	VMI	2-terminal-resistors. Standard solder pad-geometry. Low TC.	0805	0.5 W	5 %	0.01 Ω	0.1 Ω	30 ppm/K
VMx	VMI-R000	Powerbridge / Jumper.	0805	0.25 W		0.0002 Ω		3800 ppm/K
VMx	VMK	2-terminal-resistors. Standard solder pad-geometry. Low TC.	1206	1 W	1 %	0.01 Ω	0.5 Ω	20 ppm/K
VMx	VMK-R000	Powerbridge / Jumper.	1206	0.5 W		0.0002 Ω		3800 ppm/K
VMx	VMP	2-terminal-resistors. Standard solder pad-geometry. Low TC.	2010	2 W	1 %	0.005 Ω	1 Ω	20 ppm/K
VMx	VMS	2-terminal-resistors. Standard solder pad-geometry. Low TC.	2512	3 W	0.5 %	0.005 Ω	1 Ω	20 ppm/K

High current application and energy measurement

Products and Details

Composite material (ISA-WELD^®) for high current sensing and energy measuring. To assure an ideal transition these resistors are ideally mounted on a busbar.

Features

Continuous power up to 15 W
Constant current up to 350 A
Very good long-term stability
High current and pulse load capacity
Low ohmic current sensors
Made of electron beam welded composite material
RoHS compliant

Advantages

4-terminal-connecting technology
Suitable for soldering temperatures up to 350 °C
Components are in case of correct handling nearly indestructible
Can be soldered and welded
Very low ohmic resistance values

_{all information represents the best possible values}

Type/ series	Type	Description	Connector style	Power	Tolerance	Resistance (min)	Resistance (max)	TC
BAS	BAS	Precision resistor e.g. for battery management systems or welding equipment	8420 (metric)	15 W	5 %	0.0001 Ω	0.001 Ω	50 ppm/K
BKW	BKW	4-terminal precision resistor e.g. for energy meter / kWh-meter.	3920 (metric)	3 W	5 %	0.0002 Ω	0.0005 Ω	20 ppm/K
BVD	BVD	Precision resistor for kWh-meter and battery chargers. Power connection via threaded bolts	3512 (metric)	3 W	5 %	0.0002 Ω	0.0005 Ω	50 ppm/K
BVM-F	BVM-F	Precision resistors for kWh-meter and battery charge. Power connection via threaded bolts.	3517 (metric)	5 W	5 %	0.0001 Ω	0.0005 Ω	50 ppm/K
BVO	BVO	4-terminal precision resistors for kWh-meter and battery charge. For currents up to 130 A.	5516 (metric)	5 W	5 %	0.00016 Ω	0.0005 Ω	20 ppm/K

Hybrid Mounting

Products and Details

Bondable resistors for power hybrids used in power modules in frequency converters. The resistors are highly durable and offer a large flexibility in design due to an integrated assembly in semi conducted modules. Extensive bonding on a ideal heat conductive DBC substrate are the benefit of this design.

Features

Bondable resistor
Permanent power up to 20 W
Constant currents up to 140 A
Very good heat dissipation
High loading capacity
Mounting: Reflow-, IR-soldering or bonding on substrate
RoHS compliant

Advantages

4-terminal-connection technology
Conductive DCB-/IMS-soldering assembly
Nickel-plated/Au-plated bondpads
Low resistance values

^{all information represents the best possible values}

Type/ series	Type	Description	Connector style	Power	Tolerance	Resistance (min)	Resistance (max)	TC
PMB	PMB	Bondable high power resistor. 2- and 4-terminal connection.	3939	20 W	1 %	0.001 Ω	20 Ω	30 ppm/K
PMH	PMH	Bondable high power resistor with Au-plated contact surface. 2- and 4-terminal-connection.	2512	5 W	0.5 %	0.005 Ω	0.4 Ω	30 ppm/K
PMU	PMU	4-terminal-resistance with Au-plated contact surface.	3924	5 W	1 %	0.002 Ω	0.5 Ω	30 ppm/K

PCB- and heatsink-mounting

Products and Details

Precision and power resistors with low self-heating, intelligent housing-shapes and easily mounted on a heatsink.

Features

Permanent power up to 10 W
Constant currents up to 70 A
Ultra low resistance values
Very high pulse power rating
Very good long-term stability
Lower TC values start at 3 ppm/K
Heatsink and PCB-mounting possible
RoHS compliant

Advantages

4-terminal-connection technology (A-H, AZ-H, PBV)
Suitable for wave- and manual-soldering
Highest precision

^{all information represents the best possible values}

Type/ series	Type	Description	Connector style	Power	Tolerance	Resistance (min)	Resistance (max)	TC
A-H	A-H	4-terminal-resistor with low TC. Low ohmic values for high precision. _{* mounted on heat-sink}*	4618,3825 (metric)	10** W	0.1 %	0.001 Ω	100 Ω	30 ppm/K
AZ-H	AZ-H	4-terminal-resistor- with low TC. Low ohmic values for high precision. _{** mounted on heat-sink}	4618,3825 (metric)	10** W	0.1 %	0.01 Ω	1 Ω	3 ppm/K
PBH	PBH	2-terminal-resistor in space saving construction similar to TO 247. _{* mounted on heat-sink}*	TO-247 (similar)	10** W	0.5 %	0.002 Ω	100 Ω	50 ppm/K
PBV	PBV	4-terminal-resistor in space saving construction. _{* mounted on heat-sink}*	2315 (metric)	10** W	0.5 %	0.0005 Ω	1 Ω	30 ppm/K
PBV	PBV-Z	4-terminal-resistor in space saving construction. _{* mounted on heat-sink}*		10** W	1 %	0.003 Ω	10 Ω	5 ppm/K
PSB	PSB	2-terminal-resistor in space saving construction similar to TO-247. _{* mounted on heat-sink}*	TO-247 (similar)	10** W	1 %	0.005 Ω	1 Ω	50 ppm/K

Heatsink mounting

Products and Details

Precision resistors for high currents and power and the possibility for mounting on a heatsink. Suitable as a calibration and reference resistor.

Features

Permanent power up to 500 W
Constant currents up to 700 A
Pulse power rating up to 200 J
Lowest resistor values start at 0.5 mΩ
Very low TC start at 1ppm/K
RoHS compliant

Advantages

DKD-calibration possible (R-Z, RUG-Z)
Ideal for calibration- and metering applications
For highest currents and precision
Excellent heat dissipation

^{all information represents the best possible values}

Type/ series	Type	Description	Connector style	Power	Tolerance	Resistance (min)	Resistance (max)	TC
R-Z	R-Z	DKD-calibration possible. High load precision resistor usable up to 700 A. Extremely massive construction. _{* mounted on heatsink}*	13288 (metric)	500** W	0.1 %	0.0005 Ω	0.01 Ω	1 ppm/K
RTO-A	RTO-A	2-terminal-resistor in ISOTOP-housing _{* mounted on heatsink}*	SOT-227B	40** W	1 %	0.5 Ω	100 Ω	50 ppm/K
RTO-B	RTO-B	4-terminal-resistor in ISOTOP-housing _{* mounted on heatsink}*	SOT-227B	40** W	0.5 %	0.001 Ω	0.470 Ω	50 ppm/K
RUG-Z	RUG-Z	DKD-calibration possible. High load precision resistor. Suitable as calibration and metering resistor._{** mounted on heatsink}	7056 (metric)	250** W	0.1 %	0.0005 Ω	100 Ω	1 ppm/K

Calibration resistors

Products and Details

Compact resistor, easy to assemble and able to be calibrated. Suitable for metering of high pulse currents as well as for secure data acquisition of extremely low DC-currents in mA-range.

Features

Pulse current up to 2000 A
Tolerance up to +/- 0.05 %
Long-term stability < 0.05 %
Calibration and reference resistor
RoHS compliant

Advantages

DKD-calibration possible
For highest currents and precision

^{all information represents the best possible values}

Type/ series	Type	Description	Connector style	Power	Tolerance	Resistance (min)	Resistance (max)	TC
IKL-F***	IKL-F	Plugable calibration resistor for the metering of curents up to 100 A. _{** Only possible with calibration certificates in own DKD-calibration laboratory}*			0.05 %	0.001 Ω	1 Ω	10 ppm/K
IKL-G***	IKL-G	Plugable calibration resistor for the metering of curents up to 200 A. _{** Only possible with calibration certificates in own DKD-calibration laboratory}*			0.05 %	0.0001 Ω	0.001 Ω	10 ppm/K
IKL-H***	IKL-H	Plugable calibration resistor for the metering of curents up to 2000A. _{*** Only possible with calibration certificates in own DKD-calibration laboratory}			0.05 %	0.000005 Ω	0.0001 Ω	10 ppm/K
R-Z	R-Z	DKD-calibration possible. High load precision resistor usable up to 700 A. Extremely massive construction. _{* mounted on heatsink}*	13288 (metric)	500** W	0.1 %	0.0005 Ω	0.01 Ω	1 ppm/K
RUG-Z	RUG-Z	DKD-calibration possible. High load precision resistor. Suitable as calibration and metering resistor._{** mounted on heatsink}	7056 (metric)	250** W	0.1 %	0.0005 Ω	100 Ω	1 ppm/K

Brake and precharge resistors

Products and Details

Braking resistors convert kinetic energy into heat which is dissipated by an external heatsink.

Features

Permanant power up to 300 W
Pulse power up to 3 kW/s
Extremely good thermal conductivity
Protection IP 54

Advantages

Easy mounting on heatsink
Connectors: strands or contact pins (compatible to Econopack)
Extremely flat and compact construction
UL-listed materials

^{all information represents the best possible values}

Type/ series	Type	Description	Connector style	Power	Tolerance	Resistance (min)	Resistance (max)	TC
BRK	BRK	Braking resistor, pulse power ca 1 kWs. _{** mounted on heat-sink}	5242 (metric)	100** W	10 %	4.7 Ω	400 Ω	50 ppm/K
BRM	BRM	Braking resistor, pulse power 2 kWs._{** mounted on heat-sink}	6253 (metric)	200** W	10 %	10 Ω	100 Ω	50 ppm/K
BRQ	BRQ	Braking resistor, pulse power 3 kWs. _{* mounted on heat-sink}*	7063 (metric)	300** W	10 %	1 Ω	200 Ω	50 ppm/K