Schurter Three-Terminal Fuses (STTP) for Battery Systems
Intelligent Fuse Solutions for Battery Systems
The Schurter three-terminal fuses STTP 9550 combine conventional overcurrent protection with an actively triggered overcharge protection function, providing an additional layer of safety for lithium-ion battery systems.
In addition to current-dependent interruption, the integrated trigger terminal enables controlled activation in critical operating conditions. This allows reliable disconnection of charge and discharge paths even in the event of protection IC or FET failure.
Gold-plated terminals ensure low and stable contact resistance, high signal integrity, and
excellent corrosion resistance. The compact package supports high-power-density battery pack
designs ranging from 1 to 24 cells.
Applications:
Typical applications include energy storage systems, power tools, UPS equipment, e-bikes, e
scooters, and automated guided vehicles (AGVs). Supported by UL approvals and designed for
redundant protection architectures required by modern battery safety standards, three-terminal
fuses provide a robust and intelligent protection solution for advanced energy systems.
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PPTC: Compact Protection for Maximum Reliability
The new PPTC series PFTA, PFTB, PFTC and PFTL provide reliable resettable overcurrent
protection for modern electronic applications. In the event of a fault, the polymer PTC device
automatically increases resistance to effectively protect systems against overloads and short
circuits — without replacing fuses.
The portfolio includes radial leaded and SMD versions with current ratings from 0.05 to 5 A and
voltage ratings up to 72 V. UL-compliant flame-retardant materials and compatibility with
automated assembly processes make these series ideal for industrial high-volume applications.
Applications:
Typical applications include energy storage systems, power supplies, industrial electronics,
consumer electronics, automotive systems, wearables, SSDs and Li-ion batteries. The compact
PFTL SMD series additionally enables space-saving designs with high integration density.
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UHS Fuse 50-100A, 32/50VDC, 8.4 x 9.4mm
The Schurter UHS is a compact, fast-acting SMT/PCB fuse designed for Separated Extra Low Voltage (SELV) applications where high breaking capacity and fast tripping are required.
Description:
This fuse was specially developed for SELV applications with
high rated currents for highest breaking capacity demands.
Thanks to its design, the fuses tripping time minimizes excessive
temperature dissipation at 2x rated current.
Features:
Applications:
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DG11 IEC Appliance Inlet C14 or C18 with Circuit Breaker TA35 2-pole with Thermal or Thermal-Magnetic Release
The Schurter DG11 is a power entry module designed
for IEC appliance inlets (C14 or C18) combined with
a 2‑pole TA35 circuit breaker offering thermal or
thermal‑magnetic release. It is intended for use in
equipment protected to IEC/UL 62368‑1 and suitable
for protection class I or II devices.
It provides a reliable alternative to traditional
fuse-protected power entries by featuring resettable
overcurrent protection, reducing components, and
removing the need for a separate fuse.
Description:
Key Features:
Characteristics:
Applications:
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The DMTH Series: A Robust and Cost-Effective DIP Switch
DMTH: The Industry Standard 2.54mm THT-DIP-Switch
The DMTH series is a robust and cost-effective DIP switch designed for reliable manual configuration in industrial and electronic applications. Featuring the industry-standard 2.54mm pitch and THT mounting technology, it offers excellent compatibility with established PCB designs while ensuring secure mechanical retention and soldering reliability.
With up to 12 positions, SPST contacts, recessed or raised actuator options, and a low-profile 3.6mm design, DMTH supports flexible system configuration without increasing board space requirements. The switch is rated for up to 2,000 operating cycles and operates reliably from -40°C to +85°C.
Typical applications include address setting, communication protocol selection (e.g. RS-485, Modbus), function control, BIOS and hardware configuration, medical equipment parameter settings, HVAC systems, industrial controllers, robotics and consumer appliances. Combining proven performance, competitive cost and fast availability, DMTH is an ideal solution for OEMs seeking a reliable alternative to premium-priced DIP switch brands.
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4750 Strip Block for Snap-in Mounting with up to 7 IEC Appliance Outlets F
The Schurter 4750 Series is a configurable, snap-in mounting strip block designed for high-density intelligent Power Distribution Units (PDUs) and data center equipment. It compactly houses 2 to 7 IEC Appliance Outlets (Type F) and eliminates the need for external LEDs by integrating optional light pipes for status indication.
Description:
Key Features:
Characteristics:
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FMAD NEO, 1-Stage Filter for 3-Phase Systems
The FMAD NEO is a highly compact, single-stage EMC/EMI power line filter designed for 3-phase systems with a neutral line. Manufactured by Schurter, it provides high-efficiency noise suppression for industrial machinery and electronic equipment where control cabinet space is strictly limited.
Description:
Key Features:
Applications:
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Microminiature Switch for SMT Applications
SMT Switch TCS43
The TCS43 is a microminiature SMT tactile switch designed for high-performance applications requiring compact size, reliability, and precise haptic Feedback. With a footprint of just 4.2 × 3.2 mm and a low profile of 2.5 mm, it enables space-efficient PCB layouts without compromising usability.
The switch offers three actuation force options (180 gf, 250 gf, 400 gf; equivalent to 1.76 N to 3.92 N), allowing engineers to fine-tune the user experience depending on application requirements. Its mechanical lifetime of up to 100,000 cycles ensures long-term reliability, even in demanding environments.
Electrical performance supports low-power designs (10 µA to 50 mA, 1–12 VDC), while contact resistance remains ≤100 mΩ for stable signal integrity. The device operates reliably across a wide temperature range (-40 °C to +90 °C), making it suitable for both consumer and medical applications.
Typical use cases include user interfaces such as on/off switching, menu navigation, and parameter selection in high-end consumer electronics, home automation systems, IoT devices, and medical equipment (e.g., blood pressure monitors, ventilators).
The TCS43 combines compact design, robust performance, and flexible actuation characteristics
making it an ideal choice for next-generation interface solutions.
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SMT Half Pitch DIP Switches for Space-Critical Applications
SMT Half Pitch DIP Switch
DTCD, DTCJ
The DTCD and DTCJ 1.27 mm pitch DIP switches are ultra-miniature SMD components designed for high-density electronic applications. With a low profile height of just 2.2 mm and up to 46% PCB space savings compared to traditional 2.54 mm solutions, they enable significant footprint reduction without compromising functionality.
Available in Gullwing and J-bend terminations, both versions are optimized for automated SMT assembly, reducing manufacturing complexity and cost. The switches support up to 1000 mechanical cycles and operate reliably across a temperature range of -40 °C to +85 °C. Low contact resistance (≤100 mΩ initial) and stable electrical ratings (up to 100 mA @ 50 V) ensure consistent signal performance.
Typical applications include address setting and configuration in industrial controls, communication systems (e.g., RS485/Modbus), server hardware (BIOS/CMOS), consumer appliances, and medical devices. Combining miniaturization, durability, and cost efficiency, DTCD/DTCJ provide a scalable solution for modern compact electronic designs.
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4792 – Outlet 16A for Flexible Wiring
When space is limited and wiring must be efficient, every detail counts. The new Schurter 4792 outlet type J offers an intelligent solution: horizontally aligned connections, rotated 90° compared to standard designs. This variant facilitates wiring in power distribution units (PDUs).
The 4792 outlet combines space-saving design with easy installation. The snap-in mounting system for wall thicknesses from 0.8 to 3.0 mm (standard: 1.2 and 1.5 mm; variants on request) enables quick and secure installation.
Available in black, white, or gray, the 4792 outlet offers greater design freedom for a variety of applications. With several connection options (standard: QC 6.3 mm; QC 4.8 mm, solder or PCB connections available on request), it offers various wiring possibilities. Certified according to VDE, UL, and CCC, the 16 A outlet guarantees worldwide conformity and safety.
The new 4792 outlet with a rated current of 16 A is suitable for use as a component in power distribution units (PDUs), which are used in particular in data centers, but also for other applications such as industry, IoT, and IT/telecommunications.
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© E. Preston (Electrical) Ltd 2026.
UK distributor of electrical and electronic components.
