Interested in Building Automation products and applications expertise?

Contact an Expert

Building Automation Product Capabilities

Improving Efficiency and Convenience
Littelfuse solutions help designers create systems that improve the safety, reliability, convenience, and energy efficiency of smart buildings and commercial construction. Find circuit protection, power semiconductors, and sensing products to comprehensively address your commercial building’s critical protection, control and sensing needs.

Building Automation

Product Categories for Building Automation

Typical Applications

ba-image

Your Complete Source for Protection, Control and Sensing Components

Product/Part Numbers Benefits Features
MOSFETs
 X2
Main switching transistor in SMPS
Low Rds(on): low gate charge, dv/dt ruggedness

IGBTs

MIXA, MIXG 

Switching power supplies
Rugged design with thin wafer technology; Short circuit rated for 10 μsec, low gate charge; low EMI and competitive low Vce(sat)

Diodes Modules

SP3213, PESD

Switching power supplies Rugged design with thin wafer technology; Short circuit rated for 10 μsec; low gate charge; low EMI and competitive
Diode Arrays

SP1012SP1003AQxx-02HTG


Protect sensitive electronic parts from voltage transients
Ultra-low capacitance; compact form factor; low clamping voltage, low leakage current; industry’s smallest footprint available (0201)
 

TVS Diodes

SMCJ, P6KE, P6SMB

Protect sensitive electronic components from voltage transients 600 W peak pulse capability; glass passivated chip junction
 

Polymer ESD Suppressors

PGB10603, PGB10402

Protect the Wi-Fi chipset from user-induced ESD events Ultra-low capacitance; compact form factor; low leakage current; fast response 
 

TVS Arrays

SPXX, SACB, SMAJ, SMBJ, PESD, SP3213, SM712

 

 Protect ICs from ESD Excellent clamping capability, low capacitance of 1.0 pF per I/O
 

Gate Drive

IX4340
 

High side and low side gate driver for power MOSFETs

Capable of sourcing and sinking up to 5 A
 

SCR

SJxx08xSx/SJxx08xx
 

Triggers electro-mechanical relay to disengage electrical contacts during fault

 

Up to 600 V capability;  high surge capability up to 100 A

 

MOV

LA, C-III, UltraMOV
Protect the power unit from lightning and other voltage transients on the AC line   

Can meet wide-set surge withstand specifications: 40 J – 530 J (2 mS)

Product/Part Numbers Benefits Features
Reed Switch
MDSM-4, MDSR-10, 59145
Application specific customization available, wide range of sensitivity available Hermetically sealed; magnetically operated contacts
Magnetic Actuator
H-36, 57145
 

Provides open and close control signal to the electronic panel

Magnetically operated proximity sensor; rated for high temperature application up to 105º C; customer defined sensitivity

Hall Effect Sensors

5514055100

Position and speed sensing of the motor Magnetically operated position sensing; built-in temperature compensation; high switching speed up to 10 kHz
Temperature Indicators
setTM
Protect USB-C plugs and receptacles from overheating Resettable; low resistance; compact design
 Triac
Q6008xH1LED
AC switching for dimming light UL 1557 recognized; full control of light output at low end of load conditions; high Tj (110º C)
Product/Part Numbers Benefits Features
PPTC
805Lnanopico
Protect the power stage from overcurrent events Resettable; low resistance; compact design 
Product/Part Numbers Benefits Features
Multilayer Transient Voltage Suppressors
MLA
ESD protection for data lines Bidirectional clamping, low form factor; wide operational temperature range
Product/Part Numbers Benefits Features

Solid State Relays
CPC1394, CPC1651
CPC1510, CPC1511CPC1998JCPC40055STCPC5622,

LCB710,  PLA192 , PLA193PLA194PLB190

Optically-isolated switch to drive motor 
Higher current rating; 1 A vs 0.5 A load current
Product/Part Numbers Benefits Features
Shunt Trip POWR-Switches
LPS
Utilizes Class J time-delay fuses that are easily coordinated with other system overcurrent devices Meet ANSI/ASME standard requiring power to be automatically disconnected before water is turned on by the fire safety system
Coordination Panels
LCP
Idea for circuits that require selective coordination Meet Emergency Systems (NEC 700.27), Legally Required Standby Systems (NEC701.18), and Healthcare Essential Electrical Systems (NEC 517.26), which are required by the NEC to be selectively coordinated
Product/Part Numbers Benefits Features

Class CC & Midget Fuses

CCMRKLDRKLKRKLKD

Littelfuse UL fuses protect your system from overload and short circuit. Littelfuse fuses are chosen over breakers due to their higher amperages, quicker response time, easy coordination, and no calibration required.
  • Compact design is ideal for space saving protection
  • High-interrupting capacity and excellent current-limitation

Class R fuses

FLNRFLSR

Littelfuse UL fuses protect your system from overload and short circuit. Littelfuse fuses are chosen over breakers due to their higher amperages, quicker response time, easy coordination, and no calibration required.  
  • High short-circuit current rating
  • Dual-element design
  • Available with and without indication

Class T Fuses

JLLNJLLS

Littelfuse UL fuses protect your system from overload and short circuit. Littelfuse fuses are chosen over breakers due to their higher amperages, quicker response time, easy coordination, and no calibration required.
 
  • Extremely current-limiting
  • 200 kA interrupting rating

Class J Fuses

JTD
Littelfuse UL fuses protect your system from overload and short circuit. Littelfuse fuses are chosen over breakers due to their higher amperages, quicker response time, easy coordination, and no calibration required.  
  • Superior time-delay and cycling characteristics
  • Available with and without indication
Product/Part Numbers Benefits Features

Type 2 Surge Protection Devices

SPD2
Positioned at the power distribution or branch circuit location, it safeguards components from power fluctuations or surges by limiting the fault current to a load or the unit being protected to prevent equipment damage or downtime.
  • Capability to clamp and withstand high-energy transients to prevent disruption, downtime, and degradation or damage to equipment
  • Thermal protection to eliminate catastrophic failure
  • UL Recognized and IEC Compliant in one part number to reduce inventory and support global usage
  • DIN-rail mounted and compact footprint to increase panel design flexibility
  • An SPD type and voltage-coded plug to prevent module from being placed in wrong base, eliminating the risk of improper protection

Contact Us Today