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Power Assemblies and Controllers

Circuit Protection

Surface Mount

Littelfuse offers a comprehensive range of of automotive surface-mount PPTC fuses that provide extensive overcurrent protection and are AEC-Q200 qualified.

Littelfuse Surface Mount Fuses by GD Rectifiers

0402L

The 0402L series PTC provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. The 0402L series features a compact design that saves board space, low profile, compatible with high temperature solders, low resistance and are RoHS compliant, lead-free and halogen free.

IHold (A): 0.1, 0.2, 0.35, 0.5

ITRIP (A): 0.3, 0.5, 0.7, 1

Max Volts (V): 6

Datasheet

 

FemtoASMD

Littelfuse’s femtoASMD device is a PolySwitch Automotive 0603 size lead-free surface mount resettable PPTC. 

IHold (A): 0.05, 0.08, 0.1

ITRIP (A): 0.15, 0.2, 0.3

Max Volts (V): 12, 15

Datasheet

 

High Temperature SMD

The High Temperature SMD is suited to the industrial and automotive applications, it provides overcurrent protection for end applications where space is a prime concern and resettable protection is required. 

IHold (A): 0.1, 0.3, 0.5, 0.75, 1.25

ITRIP (A): 0.35, 0.82, 1.5, 2, 2.5

Max Volts (V): 6, 24, 30

Datasheet

 

FemtoSMD

The femtoSMD series has a reduced device size of 1608mm (0603 mils) footprint, which is one-twelfth of the size of the popular miniSMD series.

IHold (A): 0.05, 0.08, 0.1, 0.12, 0.16, 0.2, 0.35

ITRIP (A): 0.15, 0.2, 0.25, 0.3, 0.4, 0.45, 0.7

Max Volts (V): 6, 9, 12, 15

Datasheet

 

0603L

The 0603L series PTC provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. 

IHold (A): 0.04, 0.1, 0.2, 0.25, 0.35, 0.5

ITRIP (A): 0.12, 0.3, 0.5, 0.55, 0.75, 1

Max Volts (V): 6, 9, 15, 24

Datasheet

 

PicoASMD

The picoASMD is the first small-sized 0805 PPTC series from Littelfuse with AEC-Q200 qualification for Automotive applications.

IHold (A): 0.1, 0.12

ITRIP (A): 0.3

Max Volts (V): 15

Datasheet

 

PicoSMD

The picoSMD series provides surface mount overcurrent protection for applications requiring more space and resettable protection.

IHold (A): 0.1, 0.12, 0.2, 0.35, 0.5, 0.75, 1.1

ITRIP (A): 0.3, 0.47, 0.75, 1, 1.5, 2.2

Max Volts (V): 6, 9, 15

Datasheet

 

0805L

The 0805L Series PTC features a compact design with low resistance, low-profile and is compatible with high temperature solders.

IHold (A): 0.05, 0.1, 0.2, 0.35, 0.5, 0.75, 1, 1.1

ITRIP (A): 0.15, 0.3, 0.5, 0.75, 1, 1.5, 1.95, 2

Max Volts (V): 6, 9, 15, 24, 30

Datasheet

 

NanoSMD

The nanoSMD series offers low resistance, fast time-to-trip, a small footprint of 1206 and are RoHS compliant.

IHold (A): 0.1, 0.12, 0.16, 0.2, 0.25, 0.35, 0.5, 0.75, 2, 2.7

ITRIP (A): 0.25, 0.39, 0.42, 0.45, 0.58, 0.75, 1.1, 1.5, 6, 6.3

Max Volts (V): 6, 9, 15, 24, 30

Datasheet

 

Automotive High Temperature SMD

The Automotive High Temperature SMD is the first miniature high temperature PPTC series form Littelfuse and has an AEC-Q200 qualification for automotive applications. It features an operating temperature of -40°C – 125°C, has a smaller footprint and is compatible with high volume electronics assembly.

IHold (A): 0.10, 0.35

ITRIP (A): 0.60, 0.95

Max Volts (V): 16

Datasheet

  

NanoASMD

The NanoASMD fuses help to reduce the weight of the wire harnesses, PPTC devices distributed in a circuit can allow the use of smaller wire sizes with the resulting harnesses.

IHold (A): 0.1, 0.12, 0.16, 0.2, 0.25, 0.35, 0.5

ITRIP (A): 0.25, 0.39, 0.42, 0.45, 0.58, 0.75, 1.1

Max Volts (V): 13.2, 16, 24, 48, 60

Datasheet

 

1206L

The Littelfuse 1206L series PTC provides surface mount overcurrent protection for applications, used in CD-ROMs, mobile phones, digital cameras and disk drives.

IHold (A): 0.05, 0.1, 0.125, 0.16, 0.2, 0.25, 0.35, 0.5, 0.75, 1.1

ITRIP (A): 0.15, 0.25, 0.29, 0.37, 0.42, 0.5, 0.75, 1, 1.5, 2,2

Max Volts (V): 13.2, 16, 24, 48, 60

Datasheet

 

MicroSMD

The MicroSMD series features a small 1210 footprint, fast time-to-trip and low resistance. Littelfuse has the broadest range of resettable devices available in the industry.

IHold (A): 0.05, 0.1, 0.35, 0.5, 0.75, 1.1, 1.5, 1.75, 2

ITRIP (A):  0.15, 0.25, 0.35, 0.75, 1, 1.5, 2.2, 3, 3.5, 4

Max Volts (V): 6, 13, 2, 30

Datasheet

  

MicroASMD

The MicroASMD series has a solid state composition which helps provide reliability.

IHold (A): 0.05, 0.1, 0.5

ITRIP (A):  0.15, 0.25, 1

Max Volts (V): 13.2, 30

Datasheet

 

1210L

The 1210L series PTC provides low resistance, fast responses to fault currents and a compact design saving board space.

IHold (A): 0.05, 0.1, 0.2, 0.35, 0.5, 0.75, 1.1, 1.5, 1.75, 2

ITRIP (A):  0.15, 0.3, 0.4, 0.7, 1, 1.5, 2.2, 3, 3.5, 4

Max Volts (V): 6, 12, 13.2, 16, 24, 30

Datasheet

  

MiniSMD

The MiniSMD series offers low resistance, a small 1812 footprint, fast time-t-trip and are RoHS compliant, lead-free and halogen free. 

IHold (A): 0.1, 0.14, 0.2, 0.3, 0.5, 0.75, 1.1, 1.25, 1.5, 1.6

ITRIP (A):  0.28, 0.3, 0.4, 0.6, 1, 1.5, 1.6, 2.2, 2.5, 2.8

Max Volts (V): 6, 8, 9, 12, 13.2, 16, 24, 30, 33, 60

Datasheet

 

MiniASMD

The MiniASMD provides high performance transient voltage protection and is designed for actuators and medium motors, trace protection, harness/junction box protection, powered outputs, and electric control of modules.

IHold (A): 0.1, 0.14, 0.2, 0.3, 0.5. 0.75, 1.1, 1.25, 1.5, 2

ITRIP (A):  0.28, 0.3, 0.4, 0.6, 1, 1.5, 1.6, 2.2, 2.5, 2.8

Max Volts (V): 12, 13.2, 16, 24, 30, 33, 60

Datasheet

 

1812L

The 1821L series is RoHS compliant and lead-free, provides a fast response to fault currents and has a low resistance. 

IHold (A): 0.1, 0.14, 0.2, 0.35, 0.5, 0.75, 1.1, 1.25, 1.5, 1.6

ITRIP (A):  0.3, 0.34, 0.4, 0.75, 1, 1.5, 1.95, 2.2, 2.5, 3

Max Volts (V):6, 8, 12, 13.2, 15, 16 24, 30, 33, 60

Datasheet

 

DecaSMD

The DecaSMD series has a small 2018 footprint, fast time-to-trip and a low resistance. This device is used in a wide range of applications, including: computers, portable electronics, multimedia game machines, telephone and broadband and industrial controls.

IHold (A): 0.55

ITRIP (A):  1.1

Max Volts (V): 60

Datasheet

  

2016L

The 2016L series provides surface mount overcurrent protection for low voltage (≤60V) applications.

IHold (A): 0.3, 0.55, 0.75, 1.1, 1.5, 2, 2.6, 3.5

ITRIP (A):  0.6, 1.1, 1.5, 2.2, 3, 4, 2, 5, 10

Max Volts (V): 6, 15, 16, 24, 33, 60

Datasheet

 

SMDC

The SMDC series has a small 2920 footprint and a fast time-to-trip. The SMDC devices are used in mobile electronics and batteries, including: computers, telephone and broadband, automotive, industrial controls and batteries.

IHold (A): 0.3, 0.5, 0.75, 1.25, 1.85, 3, 3.1

ITRIP (A):  0.6, 1, 1.5, 2.5, 3.7, 6

Max Volts (V): 18, 24, 33, 60

Datasheet

 

SMD

The SMD2 series provide surface mount overcurrent protection for applications where space is at a premium and resettable protection is preferred. This series features a small 3425 footprint, a low resistance and is RoHS compliant, lead-free and halogen-free.

IHold (A): 0.3, 0.5, 0.75, 1.1, 1.25, 1.5, 1.85, 2, 2.5, 2.6

ITRIP (A):  0.6, 0.8, 1, 1.5, 2.2, 2.5, 3, 3.6, 4, 4.2

Max Volts (V): 6, 15, 16, 24, 30, 33, 60

Datasheet

 

ASMD

The ASMD series offers high performance, is compatible with high-volume electronics assembly and meets applicable automotive industry standards.

IHold (A): 0.23, 0.37, 0.6, 0.9, 1.04, 1.2, 1.27, 1.73, 1.85, 1.97

ITRIP (A):  0.59, 0.94, 1.48, 2.16, 2.46, 2.88, 2.95, 3.7, 3.93, 5

Max Volts (V): 16, 30, 33, 60

Datasheet

 

ASMDC

Littelfuse’s ASMDC PPTC offers a lower profile form factor for more efficient space saving and provides higher VDC and IHold rating, most robust performance compared to competitors in the market. 

IHold (A): 0.3, 0.5, 0.75, 1.25, 1.85, 3

ITRIP (A):  0.6, 1, 1.5, 2.5, 3.7, 6

Max Volts (V): 24, 33, 60

Datasheet

 

AHS

The PolySwitch low resistivity SMD (surface mount device) is a versatile device well suited for general applications which have space constraints, low power dissipation and high environmental reliability requirements.

IHold (A): 0.8, 1.2, 1.6, 2.3

ITRIP (A):  2, 2.3, 3.2, 4, 6

Max Volts (V): 16

Datasheet

 

2920L

The 2920L series provides surface mount overcurrent protection for medium voltage (≤60V) applications where resettable fuses are desired.

IHold (A): 0.3, 0.5, 0.75, 1.1, 1.25, 1.5, 1.85, 2, 2.5, 2.6

ITRIP (A):  0.6, 1, 1.5, 2.2, 2.5, 3, 3.7, 4, 5, 5.5

Max Volts (V): 6, 12, 15, 16, 24, 30, 33, 60

Datasheet

 

LoRho

The new LoRho series allows a higher hold current device in a smaller factor and lower profile as compared to a standard PPTC. It offers ultra low internal resistance while maintaining the high level electrical characteristics and performances of standard PPTC products.

IHold (A): 0.1, 0.2, 0.35, 0.5, 0.75, 1, 1.1, 1.5, 1.75, 2

ITRIP (A):  0.3, 0.5, 0.7, 1, 1.5, 1.8, 3, 3.5, 4, 5

Max Volts (V): 66, 12

Datasheet

  

Low Rho SMD

Littelfuse’s Low Rho SMD is a versatile device that can help provide both overcurrent and overtemperature protection for battery pack PCMs (protection modules), circuit PCBA and signal/power I/O interface.

IHold (A): 1.9, 2, 2.5, 3.5, 3.8, 4, 4.5, 5, 5.5, 6

ITRIP (A):  4.9, 5, 5.2, 6, 6.3, 8, 9, 10, 11, 12

Max Volts (V): 5, 6

Datasheet

 

250S

The 250S High Voltage Radial device is a polymer-based PTC suitable to protect telephony equipment against lightning and power cross strikes The 250S is fully compatible with telecommunications standards and offer hold current 250Vac and 60vdc with low resistance. 

IHold (A): 0.13

ITRIP (A):  0.26

Max Volts (V): 250

Datasheet   


For further information on Littelfuse's surface mount fuses, please call us today on: 01444 243 452 or email: .(JavaScript must be enabled to view this email address).

Littelfuse

Littelfuse is a global leader in circuit protection, power semiconductors and power control and sensing platforms. The company was founded in 1927 and acquired IXYS Corporation in 2018.

Further information:

You can find further information on Littelfuse using the following links:

Tel: 01444 243 452

Fax: 01444 870 722

Email: enquiries@gdrectifiers.co.uk