BI Technologies

The BI Technologies product line encompasses trimming potentiometers, precision potentiometers, position sensors, turns counting dials, resistor and resistor networks, integrated passive networks, transformers and inductors, hybrid and power hybrid microcircuits, and custom integration of these technologies. BI power and signal products can be found in many transportation and industrial applications.


The HA66 series is a low profile, low loss, ferrite-based inductor designed with a wide range of inductances and package sizes. It is very compact, magnetically shielded, and has low DC resistance and high saturation current. This part is able to meet an operating temperature of 155°C. It is suited for high power density applications where size is critical. This series is ideal for high efficiency DC-DC converters using high switching frequencies to 3MHz as well as EMI and low pass DC filter. This part is AEC-Q200 certified, assuring performance and reliability levels that automotive applications and high reliability industrial applications demand.


  • Operating Temperature Range -40°C to +125°C
  • Ambient Temperature, Maximum +85°C
  • Temperature Rise, Maximum 40°C

  • RoHS Compliant
  • AEC-Q200 Certified

Product Documentation

HA66 Data Sheet | PDF
HA66 Fast Facts | PDF
HA66 Press Release | PDF

The HA19 common mode choke is designed specifically for noise suppression applications found in the growth and expansion of new generation vehicles such as electric vehicles (EVs) and plug-in hybrid vehicles (PHVs). The HA19 series offer high efficiency and excellent current handling in a rugged construction. It is mechanically robust and features low DC resistance and low temperature rise performance. HA19 is ideal for high efficiency electric power steering EMI applications where size and AEC-Q200 certification is critical.


  • Ideal for high frequency EPS noise suppression applications
  • Transportation
  • Electric Power Steering
  • Electronic Control Units
  • Engine Control
  • Transmission Control
  • Industrial
  • Switch Mode Power Supply
  • DC/DC Converters


  • Operating temperature range -40°C to +125°C
  • Rated current up to 44amps
  • Ambient temperature, maximum +85°C
  • Temperature rise, maximum 40°C
  • Reduces line conducted interference
  • Low loss ferrite core
  • Proven performance in maintaining transmission signal integrity
  • Excellent performance in rugged environments
  • RoHS compliant
  • AEC-Q200 certified


The HA78D series of coupled inductors was designed especially for use in a variety of circuits, including Flyback, multi-output buck, SEPIC and ZETA application. Its high leakage inductance makes it ideal for SEPIC applications; the loosely coupled winding (K=0.8) improves SEPIC efficiency by reducing circulating current and providing 2x the ripple current reduction of separate inductors. These inductors offer high efficiency and excellent current handling in a rugged environment. It is ideal for high frequency DC-DC converters and VRM/VRD applications due to its low loss ferrite core and high temperature rating of 155°C. The HA78D works well in high stress environments and is AEC-Q200 certified for the automotive market. The HA78D can also be used as 2 single inductors connected in a series, in parallel, or as a common mode choke (filter inductor) for EMI noise reduction.


  • Loosely coupled winding (K = 0.8) (for-L128 series)
  • High operating temperature (-50°C to 155°C)
  • AEC-Q200 automotive certification
  • Flexible design allows for series orparallel connection
  • Low loss ferrite core
  • High efficiency
  • Excellent current handling
  • High leakage inductance


  • Improved SEPIC efficiency due to high leakage inductance
  • Automotive-ready due to AEC-Q200 certification
  • Customizable coupled winding factor
  • Low losses at high frequency applications —> less temperature rise
  • High operating temperature allows for a higher ambient or temperature rise
  • Small size design allows for smaller PCB footprint


  • Dual inductance for a SEPIC converter
  • DC-DC converter
  • EMI filter

Market Segments:

  • Automotive lighting
  • Hybrid car
  • Start and stop vehicle
  • Electrical power steering

Product Documentation

HA78D-128XXXLFTR Data Sheet | PDF
HA78D-L128XXXLFTR Data Sheet | PDF
HA78D Fast Facts | PDF
HA78D Press Release | PDF
HA78D Target Pursuit | PDF
HA78D Application Note | PDF


  • Operating Temperature -40°C to +155°C
  • Small size
  • High voltage isolation
  • Developed for Avago IGBT Chipset ACPL-32JT/302J


  • 5KV high voltage isolation; can withstand up to 7kV
  • Compact SMD package
  • Lower cost in comparison to optoelectronic (semi-conductor) solution
  • Higher ratability in comparison to optoelectronic solution
  • Less susceptible to temperature effects than optoelectronic solution


  • Industrial
  • Inverters
  • Uninterruptible power supplies
  • Switch mode power supplies
  • Automation systems
  • DC/DC converters
  • Renewable energy inverters
  • AC and brushless DC motor drives

Product Documentation

HM210-05K060LFTR Data Sheet | PDF
HM210-05K060LFTR Fast Facts | PDF
HM210-05K060LFTR Product Focus | PDF


  • Rated current up to 65 amps
  • Compact size
  • Rugged, shielded construction
  • Lowest DCR/μH in its package size
  • Handles high transient current spikes without saturation
  • Ultra-low buzz noise
  • AEC-Q200 certified
  • -50°C to +155°C operation
  • RoHS compliant
  • Ideal for high temperature, high power applications


  • Transportation
  • Powertrain
  • Engine control
  • Transmission control
  • Industrial
  • Switch mode power supply
  • Automation system
  • DC/DC converters


  • Cost savings in comparison to toroidal design
  • Shielded construction offers excellent resistance to corrosion
  • Compact size offers space saving on the PCB
  • Automotive-ready due to AEC-Q200 certification, at no extra charge
  • Lower weight results in less fuel consumption

Product Documentation

HA73E Data Sheet | PDF
HM73E Data Sheet | PDF HM.HA73E 10 Fast Facts | PDF
HM73E 10 Product Focus| PDF

Applications include Industrial, Medical and Transportation

Product Benefits and Features:

  • Stable output characteristics in harsh environment
  • High accuracy
  • Dust Proof
  • Tight linearity of ±2%
  • Low noise <80mV

  • Low profile of 2.2mm
  • D formation thru-hole anti-slip rotor (optional: H-type)
  • Shaft hole up to f4mm
  • Electrical angle selections

Product Documentation

Hollow Shaft Position Sensors Overview | PDF


The PHS04 series is a rotary position sensor that features a small footprint, smooth operation, and a 300,000 life cycle. Some applications are game controllers and robot joint angle controls.


  • Robot joint angle control
  • Game controller

PHS04 Datasheet | PDF




  • Dust-proof construction protects the interior from dust, which maintains stable characteristics
  • High accuracy and long life over 1 million cycles
  • Stable output characteristics can be secured for external noise and temperature changes

PHS07 Datasheet | PDF



The PHS11 series is a rotary position sensor that features dust proof construction, an ultra thin size, and a life cycle of 1 million cycles. Some applications are HVAC sensors and motor drive units.


  • Rotary angle sensor
  • Electric motor-driven bicycle
  • Motor drive unit
  • HAVC sensor

PHS11 Datasheet | PDF
  • Shock up to 100g, vibration up to 10g, per MIL R-39023
  • 10M+ shaft rotations with no output signal degradation
  • Eliminates sliding contact noise across multiple turns
  • 3, 5, or 10 turn with up to 3600° travel
  • Protection options include IP50/67 sealing and sealed shafts

The MagnePot rotary position sensor is a new non-contacting multi-turn rotary position sensor available in three, five, and ten turn models. Various output options are available. Non-contacting technology provides consistent performance over a significantly extended life.

Press Release

January 15, 2016, - TT Electronics today announced the global market introduction of its MagnePot® 8150 Series.

The MagnePot® 8150 Series is a family of high-performance multi-turn non-contacting rotary position sensors. They are designed to reliably operate over a minimum of 10 million shaft rotations with no signal output degradation. The Series combines the very latest in Hall Effect non-contacting sensing technology and high-performance internal bearing design. This combination results in a rotary position sensor with exceptional performance reliability. The non-contacting sensing technology also facilitates clean, ratiometric absolute position outputs across multiple turns without sliding contact noise.

Units are available in a choice of three, five or ten turns. Each is powered via a 5Vdc supply voltage. Ratiometric output range is from 4% to 96% of supply with a 12mA maximum current rating. MagnePott® 8150 Series models also feature ±0.50% independent linearity as standard, with optional improvement to ±0.25%. Standard operating temperature range is -40°C to +125°C. Additional options include alternative output voltages, servo mounts, non-linear outputs, IP50 or IP66 ingress protection, and severe environment versions. Severe service models further incorporate sealed shafts and rear lids. All such modifications and options may be easily accommodated with competitive lead times.

Typical applications for the MagnePott® 8150 Series include industrial joystick controls; factory and laboratory automation; advanced manufacturing; robotic positioning; motion control feedback; medical diagnostic equipment positioning; aircraft flight and panel controls; and vision system positioning feedback.

Product Documentation

8150 Data Sheet | PDF
8150 Fast Facts | PDF

24 September 2013: TT electronics has launched the next generation of its moulded inductor devices. The HM72E and HA72E are engineered for high performance and cost effectiveness and will utilise proprietary blends of alloy core materials that are optimised for high temperature stability, high dc bias capability, low core losses as well as minimising oxidation.

Designers of industrial and automotive DC/DC converters and other power applications where high power density is a requirement will benefit from the rust resistant over-moulded construction and the wide operating temperature rating. The new moulded inductors are operational from -40oC to +155oC making them ideal for powertrain applications where environmental conditions are demanding.

Both devices are targeted at designers who require a buck, boost or buck-boost inductor for voltage regulation at fast switching frequencies up to 3MHz but also need to save space. Additionally, the HA72E series is qualified to AEC-Q200 certification for automotive applications. Further features of the range include DC bias current of up to 45A and inductance levels ranging from 0.10uH to 33uH at a maximum dimension of 6.8 x 7.3 x 3mm (LxWxH).

The HM72E and HA72E are available in tape and reel packaging. They both have a lead time of approximately 10-12 weeks.

Product Documentation

HA72E - HA72E Data Sheet | PDF  |   HA72E Fast Facts | PDF
HM72E - HM72E Data Sheet | PDF  |   HM72E Fast Facts | PDF
  • 400 Series
  • Exceeds DO-160E environmental specification
  • Unique sealing passes multi-icing cycles testing
  • Stroke sizes from 0.5” to 6.0”
  • End-bearings for different applications
  • Redundant output & custom harness options
  • Leads included on standard sensors
  • Industrial, mil-aero & consumer applications

Product Documentation

400 Series | PDF
NEW Incremental two-bit gray code encoders (EN11) Data Sheet | PDF
Automotive steering sensors with low-hysteresis for critical position and torque loading Data Sheet | PDF
Long-life rotary sensors with 1 million duty cycle (P270) Data Sheet | PDF
Low-profile precision control potentiometers (6130) Data Sheet | PDF
Non-contact Hall Effect sensors with 10 million rotations duty cycle (6120) Data Sheet | PDF
Multi-turn position sensors (7280) Data Sheet | PDF
  • 10W, SOIC package (SMP series)
  • 10Ω to 10KΩ resistance range
  • Short-term overloads & pulse withstand capability
  • ±1% & ±5% tolerances
  • -55°C to 155°C temperature range
  • SMP Series | PDF
  • 20W, TO-263 package (SMHP series)
  • 0.01Ω to 51KΩ resistance range
  • Direct mounting to a heatsink
  • Short-term overloads & pulse withstand capability
  • ±1% & ±5% tolerances
  • -55°C to 155°C temperature range
  • SMHP Series | PDF