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Power Assemblies and Controllers

Circuit Protection

October 2020 - Littelfuse’s Solutions for Ventilators, Defibrillators and Ultrasound Scanners

Published on: 15/10/2020

Discover Littelfuse's extensive range of medical equipment solutions

Littelfuse Solutions for Ventilators, Defibrillators and Ultrasound Scanners

Littelfuse is a global leader in circuit protection and offers a broad product portfolio, covering every aspect of protection, sensing and control.

The COVID-19 pandemic has led to the immediate requirements for pulmonary, cardio-vascular, diagnostic systems and other general patient care equipment. There is a worldwide shortage of ventilators due to COVID-19, for example, in 2019 77,000 pieces were enough for the entire planet vs April 2020 when New York City alone needs 30,000 pieces.

According to Fortune Business Insights, the global defibrillator market is expected to grow at a CAGR of 5.3%, the increasing prevalence of out-of-hospital cardiac arrest, congenial heart diseases, obesity, diabetes etc. is expected to boost the growth of external defibrillators. The global ultrasound equipment market is set to grow at a CAGR of 5.1% due to technology advancements, especially with smartphone connectivity along with improvements in diagnostic procedures and point-of-care testing.

Littelfuse is able to help provide robust designs and high quality components needed to help with reliable medical operation and equipment up-time.

 

Reasons to use Littelfuse products and shop with GD Rectifiers:

 

Application expertise

GD Rectifiers team of engineers partner directly with customers to help speed up product design and production

 

Global customer service

Littelfuse boasts a global customer service team ready to ensure customers a fast and seamless experience

 

Compliance and regulation

GD Rectifiers and Littelfuse help customers with the design process to account for requirements set by global regulatory authorities

 

Testing capabilities

Littelfuse offer certification testing to global regulatory standards to help customers get products to market faster

 

Global manufacturing

Littelfuse offers high-volume manufacturing and are committed to the highest quality standards

 

Littelfuse Solutions for Ventilators by GD Rectifiers

 

Benefits of Littelfuse Products for Ventilators

Technology

Function in application

Product series

Benefits

Features

Fuse, PPTC

Protect power stage from overcurrent events

215, 150, LVR

Reduces customer qualification time, compact design

Resettable option; third-party compliance UL/IEC; low internal resistance, shock safe

MOV, MLV

Protects form voltage surges, such as lighting and transients

UltraMOV, MLA

Reduces customer qualification time, compact design

High energy absorption capability: 40J-530J (2ms)

TVS diode

Protects from voltage transients

SMCJ33CA, SMBJ36A

Clamping transients to safe levels

Fast response time <1 ps; small form factor

Schottky diode

Rectification and blocking in power supply units

DST560S

Enables the design of the high-efficiency power supplies

Ultra-low forward voltage drop; high frequency operation

Solid state relay

Isolation switch

CPC1017N, PLA134S

High reliability and electrical isolation; robust design; no EMI/RFI generation

Up to 3750 VRMS input/output isolation; UL/IEC certified; low drive power

PPTC

Protect BMS MOSFET from high currents due to external shorts

2016L, 1206L

Reduces customer qualification time, compact design

Surface mountable, third-party compliance UL/IEC

Diode array

ESD protection for BMS

SP05, SP1305, SP1001

Multiline protections, compact design

Fast response time; small form factor

TVS diode

Protects BMS from voltage transients

SMA6J28A, SMF, 1.5SMC

Clamping transients to safe levels

Low inductance; excellent clamping

NTC

To sense ambient temperature of the board

LC

Provides accurate temperature (component/ambient) for enabling safe device operation

High reliability; small form factor; fast thermal response

Diode array, TVS diode

Protect ICs from ESD through display

SP1103, SMF3.3A

Multiline protection, compact design

Low capacitance of 1.0Pf per I/O

Diode array

Protection of data lines and equipment from ESD and lighting

SP3019, SP3400

Clamp transient to a safe level preventing catastrophic failure, compact design

Low capacitance 0.3Pf; leakage current (0.01μA): small form factor μDFN

Temperature indicator

Protect USB-C plugs and receptacles from overheating

setPTM

Helps improve reliability and user experience

Fast response to thermal events; small form factor; zero IR loss contribution

PPTC

Overcurrent protection for USB chipset

MiniSMDC, 0805L

Auto reset after fault is removed; allows for compact design

Resettable; low resistance; compact design

MLV

ESD protection for data lines

MLA

Fast clamping response; rigid performance under high temperatures

Bidirectional clamping, low form factor; wide operational temperature range

 

Littelfuse Solutions for Defibrillators

Littelfuse Solutions for Defibrillators by GD Rectifiers


Benefits of Littelfuse Products for Defibrillators

Technology

Function in application

Product series

Benefits

Features

Fuse

Protection against short circuit and overload conditions

313

Reduces damage to equipment compact design; energy efficiency protection

Third-party compliance; low internal resistance

Varistor

Protection against severe surge transients

UltraMOV

Reduces customer qualification time by complying with third-party safety standards

High energy absorption capability; small package; operating temperature up to 125°C

PPTC

Protection against short circuit

NanoSMD, femtoSMD

Offers fast response to over current events; suitable for compact portable devices

Ultra-low internal resistance; higher current holding in smallest SMD package

Diode array

Surge and ESD protection

SP11xx

Ensure safety of equipment from repetitive ESD strikes without performance degradation

Low leakage current of 100nA; small form factor; multiple voltages available

Diode array

Protects touchscreen ICs from user-induced ESD events

MLA

Fast clamping response; rigid performance under high temperatures

Bidirectional clamping; low form-factor; wide operational temperature range

PPTC

Protect 5 VDC power supply from overcurrent and over temperature

LoRho

Offers fast response to over current events; suitable for compact portable devices

Ulta-low internal resistance; higher current holding in smallest SMD package

Diode array

Protection of data lines and equipment from ESD and lighting

SP3019, SP3400

Clamp transient to a safe level preventing catastrophic failure; compact design

Low capacitance 0.3Pf; leakage current (0.1μA); small form factor μDFN

IGBT

Controlling biphasic voltage wave form applied to patient

Discrete IGBTs

Lower heat signatures; fast switching response to high currents

Ultra low on state resistance; fast switching speed

Gate driver

To drive high power IGBTs

IXD_604, IXD_609

Quick turn-on and turn-off of power IGBT; eliminates the need for separate supply

9A peak current; low propagation delay time

Reed sensor

Proximity sensor to detect the position of the handle

Custom sensor

Different customisation options (new package, modification of existing package, etc.)

Wide array of sensor output options with engineering services

Solid state relay

Switch high voltage pulses to the patient during defibrillation

CPC1966B

Enables robust design; high noise immunity

High noise immunity; rapid turn-on; 5mA sensitivity

Polymer ESD suppressor

Protects the Wi-Fi chipset from user-induced EDS events

PGB10603, PGB10402

Enables compact design and low clearance between antenna and casing; retains RF signal integrity; improves system reliability

Ultra-low capacitance; compact form factor; low leakage current; fast response time

 

Littelfuse Solutions for Portable Ultrasound Scanners by GD Rectifiers 

Benefits of Littelfuse Products for Portable Ultrasound Scanners

Technology

Function in application

Product series

Benefits

Features

PPTC

Protection against short circuit and overload current conditions

NanoSMD, femtoSMD

Offers fast response to over current events; suitable for compact portable devices

Ultra-low internal resistance; higher current holding in smallest SMD package

Diode array

Surge and ESD protection

SP11xx

Ensure safety of equipment from repetitive ESD strikes without performance degradation

Low leakage current of 100Na; small form factor; multiple voltages available

Diode array

Protects touchscreen ICs from user-induced ESD events

SP1103

Helps comply with IEC standards (61000-4-2: ±15 kV, ±30Kv air; 61000-4-4: 40A (5/50Ns); enables a compact design; retains high signal integrity

Low dynamic resistance; five-channel protection in a small 0402 footprint; maintains high signal integrity

PPTC

Protect 5 VDC power supply from over current and over temperature

LoRho

Offers fast response to over current events; suitable for compact portable devices

Ultra-low internal resistance; higher current holding in smallest SMD package

Diode array

Protection of data lines against ESD

SP3019, SP3400

Clamp transient to a safe level preventing catastrophic failure; compact design

Low capacitance 0.3pF leakage and leakage current (0.01μA); small form factor μDFN

MOSFET

Used as a switch to generate high-frequency pulse by varying the external gate resistance

HiPerFETs

Small package allows space saving and ease of mounting; high power density

Up to 1200V with fast intrinsic diodes; low Rdson per silicon area; high-speed switching; excellent thermal performance

Fast recovery diodes

Rectification of high-frequency pulse

HIPERDYN

Avalanche voltage rated for reliable operation; soft reverse recovery for low EMI/RFI; low power dissipation

VRRM from 300, 600 and 1200V; Ifav range: 6A to 55A; very low capacitance <15pf

Polymer ESD suppressor

Protects the Wi-Fi chipset from user-induced ESD events

PGB10603, PGB10402

Enables compact design and low clearance between antenna and casing; retains RF signal integrity; improves system reliability

Ultra-low capacitance; compact form factor; low leakage current; fast response time

 

Learn more about the benefits of Littelfuse components and view the full presentation from Littelfuse here.

 

GD Rectifiers has access to Littelfuse products, including: fuses, specialty fuses, resettable PTC fuses, medium voltage fuses, industrial power and UL fuses, varistors, LED protectors, surface mount LED protectors, arc flash detection, TVS diodes, solar arc flash detection, solar protection arrays, solar protection relays, solar surge protection devices, solar TVS diodes, solar rated varistors, LED lighting surge protection modules and type 2 surge protection devices.

 

For further information on Littelfuse’s product range, or to receive a quote, please call GD Rectifiers on: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).