Littelfuse Automotive Circuit Protection Solutions
Littelfuse automotive solutions live up to the pressure to add new features to vehicles. With consumers trading up to keep up with technology’s life cycle, manufacturers are finding ways to enhance the customer experience inside the vehicle through technology. To do so, a partner like Littelfuse is needed to secure circuit protection for these electronics.
HC 20EV Series Fuse
The Littelfuse EV20 fuse is designed for protection of high-current / high-voltage circuits in electric and hybrid electric vehicles employing an industry-standard footprint. The EV20 fuse provides time-delay characteristics with “Diffusion Pill Technology.”
Features - Interrupting Rating: 16kA @ 500VDC
- Voltage Rating: 500VDC
- Current ratings 60 – 125 A
- M6 bolt-down terminals
- 20 mm diam. body
| Applications - Hybrid electric vehicles
- Battery electric vehicles
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SLD8S Series TVS Diode
The SLD8S Series TVS diode provides precision overvoltage protection for sensitive automotive electronics. It is SMTO-263 packaged with leaded modification.
Features
- AEC-Q101 qualified
- SMTO-263 package, and foot print is compatible to industrial popular DO-218AB package
- Meet ISO7637-2 5a/5b protection and ISO16750 load dump test (refer to APP note for details)
- VBR @ TJ= VBR@25°C x (1+αT x (TJ - 25)) (αT: Temperature Coefficient, typical value is 0.1%)
- Glass passivated chip junction in modified TO-263 package
- IEC-61000-4-2 ESD 30kV(Air), 30kV (Contact)
- ESD protection of data lines in accordance with IEC 61000-4-2
- EFT protection of data lines in accordance with IEC 61000-4-4
- Fast response time: typically less than 1.0ps from 0 Volts to BV min
- Excellent clamping capability
- Low incremental surge resistance
| - Plastic package is flammability rated V-0 per Underwriters Laboratories
- Meet MSL level 1, per J-STD-020, LF maximum peak of 260°C
- For surface mounted applications to optimize board space
- Low profile package
- High temperature to reflow soldering guaranteed: 260°C/10sec at terminals
- Typical failure mode is short from over-specified voltage or current
- Whisker test is conducted based on JEDEC JESD201A per its table 4a and 4c
- Matte tin lead–free plated
- Halogen free and RoHS compliant
- Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/JEDEC J-STD- 609A.01)
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Applications
Designed to protect sensitive electronics from:
- Inductive Load Switching
- Alternator Load Dump
AUMOV® Series Varistor
Littelfuse AUMOV® Series metal oxide varistors offer 50% greater surge withstanding capability than existing technologies on the market for low DC voltage applications. Designed for circuit protection in low voltage (12VDC, 24VDC, and 42VDC) automotive systems, the AUMOV® series is available in five disc sizes with radial leads with a choice of epoxy or phenolic coatings.
Features & Benefits
- Low voltage varistor design provides high peak surge current rating
- Phenolic and Silicone coating meet the stringent quality requirements of AEC-Q200 (Table 10)
- Reduced footprint and volume required for surge protection
- Optional phenolic coating for higher operating temperature up to 125ºC
- High peak surge current rating up to 5kA (8/20 μs pulse)
| - Wide operating voltage range: 14VAC to 625VAC and 16VDC to 825VDC
- Five disc sizes available: 5, 7, 10, 14, and 20mm
- High resistance to thermal cycles for phenolic coating
- High energy absorption particularly for automotive load dump and jump start
- Lead–free, Halogen-Free and RoHS compliant
- Silicone coating option: High operating temperature combined with high isolation voltage capability: 125°C and 2500V respectively
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Applications
- Body Electronics Systems
- Powertrain Systems
- Infotainment Systems
- Automotive Control Module Protection
- Motor or inductive load transient suppression
TPSMF4L Series SOD-123FL Package
The Littelfuse TPSMF4L series of SOD-123FL small and flat lead low-profile plastic package is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events, and it’s especially suitable for high reliability and automotive applications.
TPSMF4L packages are also ideal for the protection of portable devices/hard drives, notebooks, VCC busses, POS terminal, SSDs, power supplies, monitors, and vulnerable circuit used in other consumer applications.
TPSMF4L Series Features
- High reliability application and automotive grade AEC-Q101 qualified
- 400W peak pulse power capability at 10/1000µs waveform, repetition rate (duty cycle): 0.01%
- Compatible with industrial standard package SOD123FL
- Low inductance, excellent clamping capability
- For surface mounted applications to optimize board space
- Typical failure mode is short from over-specified voltage or current
- Whisker test is conducted based on JEDEC JESD201A per its table 4a and 4c
- IEC 61000-4-2 ESD 30kV(Air), 30kV (Contact)
- ESD protection of data lines in accordance with IEC 61000-4-2
- EFT protection of data lines in accordance with IEC 61000-4-4
| - Fast response time: typically less than 1.0ns from 0 Volts to VBR min
- High temperature soldering: 260°C/40 seconds at terminals
- Glass passivated junction
- Built-in strain relief
- Plastic package is flammability rated V-0 per Underwriters Laboratories
- Meet MSL level1, per J-STD-020, LF maximun peak of 260°C
- Matte tin lead–free plated
- Halogen-free and RoHS compliant
- Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish
material is tin(Sn) (IPC/ JEDEC J-STD-609A.01) - UL Recognized as an Isolated Loop Circuit Protector per UL 497B
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Applications
TPSMF4L packages are ideal for the protection of portable devices/hard drives, notebooks, VCC busses, POS terminal, SSDs, power supplies, monitors, and vulnerable circuit used in other consumer applications.
