15.10.2020
Littelfuse’s Solutions for Ventilators, Defibrillators and Ultrasound Scanners
Published on: 15/10/2020
Discover Littelfuse’s extensive range of medical equipment solutions
Littelfuse 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
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
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 |
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: [email protected].
