The SP1105S-01UTG is a high-performance transient voltage suppressor (TVS) diode manufactured by Hamlin/Littelfuse, designed to provide robust circuit protection in compact electronic applications. This surface-mount device belongs to the circuit protection category, specifically engineered as a Zener-type TVS diode that safeguards sensitive electronic components from voltage transients and electrostatic discharge events.
This TVS diode addresses critical design challenges in modern electronics where space constraints demand miniaturized protection solutions without compromising performance. The device effectively manages voltage spikes that can damage downstream components, providing a reliable clamping mechanism that diverts excessive current away from protected circuits. Its unidirectional configuration makes it ideal for protecting DC circuits and single-polarity applications where bidirectional protection is unnecessary.
The SP1105S-01UTG features a 5V maximum reverse standoff voltage with a typical clamping voltage of 9.2V, capable of handling peak pulse currents up to 80A during 8/20μs surge events. The device operates reliably across a wide temperature range from -40°C to 125°C, ensuring consistent protection in harsh environmental conditions. With a capacitance of 630pF at 1MHz, it maintains signal integrity in high-frequency applications while providing effective protection. The ultra-compact 2-DFN package measuring just 1.6x1mm makes it equivalent to a 0603 footprint, enabling integration into space-constrained designs.
Primary advantages include exceptional surge handling capability relative to its small size, low capacitance for minimal signal interference, fast response time typical of Zener-based protection, and RoHS3 compliance ensuring environmental responsibility. The surface-mount configuration facilitates automated assembly processes, while the tape and reel packaging supports high-volume manufacturing requirements with 3100 units per reel.
This TVS diode demonstrates broad compatibility with various circuit topologies and can be easily integrated into existing designs requiring 5V protection levels. Its general-purpose designation makes it suitable for protecting microprocessors, memory interfaces, communication ports, power supply inputs, and other sensitive electronic circuits commonly found in consumer electronics, industrial equipment, automotive systems, and telecommunications infrastructure.
The device finds extensive application in smartphones, tablets, laptops, IoT devices, automotive electronics, industrial sensors, communication equipment, and any electronic system requiring compact, reliable overvoltage protection. Its versatility makes it particularly valuable in applications where board space is premium and protection performance cannot be compromised.
Equivalent and alternative models include the Bourns CDSOD323-T05C offering similar 5V protection in SOD-323 package, Nexperia PESD5V0S1UB providing comparable specifications in SOD-523 format, STMicroelectronics ESDA5V3SC6 with slightly higher voltage rating, Vishay VCUT0505-GS08 in 0402 package for even tighter space constraints, Diodes Incorporated DFLS130L-7 offering enhanced surge capability, and Infineon ESD5Z5.0T1G providing similar protection characteristics. Each alternative presents different package options, capacitance values, or surge ratings, allowing designers to select the optimal solution based on specific application requirements, space constraints, and performance criteria while maintaining equivalent protection functionality.
SP1105S-01UTG (1)
SP1105S-01UTG Key Technical Attributes
Manufacturer: Hamlin / Littelfuse
Part Number: SP1105S-01UTG
Main Category: Circuit Protection (TVS Diode)
SP1105S-01UTG Packing Size
The SP1105S-01UTG is provided in a compact 2-DFN package with physical dimensions of 1.6mm x 1.0mm. The product is RoHS3 compliant, ensuring environmentally safe materials. The tape and reel (TR) method is used for packaging, supporting high-volume automated assembly. The pin configuration accommodates single unidirectional channels ideal for optimized board designs.
Type, Material, Size
This device employs the Zener type structure and is fabricated with semiconductor materials suitable for high reliability transient voltage suppression. It conforms to the industry-standard 0603 (1610 metric) package, making it compatible with densely populated circuit boards. The 2-DFN (1.6x1) package ensures minimal footprint and excellent thermal dissipation properties.
Thermal Characteristics and Electrical Properties
The SP1105S-01UTG operates within a temperature range of -40°C to +125°C, making it robust for diverse environments. The maximum reverse stand-off voltage (VWM) is 5V, with a maximum clamping voltage (VC) at 9.2V. It supports a peak pulse current of 80A (8/20μs) and offers a typical capacitance of 630pF at 1MHz. These attributes guarantee reliable transient voltage suppression in sensitive circuits.
SP1105S-01UTG Application
This TVS diode is engineered for general-purpose circuit protection applications. It is suitable for deployment in consumer electronics, industrial control systems, data communication interfaces, and automotive modules that require robust ESD and surge protection. Its compact size and surface-mount format make it ideal for space-limited designs, providing effective guard against transients in digital and analog lines.
SP1105S-01UTG Features
The SP1105S-01UTG offers advanced transient voltage suppression with ultra-fast response times to protect downstream semiconductor devices from ESD and EFT events. It features a unidirectional configuration, ensuring efficient clamping when subjected to voltage spikes above 5V. The device achieves high peak pulse current handling (80A), increased power dissipation, and low leakage in the off-state. Its low-profile 2-DFN package fosters high-density layout without compromise to thermal performance. Furthermore, RoHS3 compliance assures adherence to the latest environmental standards.
SP1105S-01UTG Quality and Safety Features
Manufactured by Hamlin / Littelfuse, a trusted leader in circuit protection, the SP1105S-01UTG complies with RoHS3 directives, confirming it is free from hazardous substances. Its high reliability is ensured through rigorous electrical testing and conformance to industry safety standards for TVS diodes. The robust operating temperature and mechanical packaging contribute to sustained field performance and minimized failure risk over extended operating life.
SP1105S-01UTG Compatibility
The device's 0603 (1610 metric) footprint allows straightforward integration into modern PCB layouts. It is compatible with other SPA series circuit protection solutions, as well as similar layout and stack-up requirements in surface-mount technology (SMT) production. Its electrical parameters support use alongside a wide range of logic and interface components.
SP1105S-01UTG Datasheet PDF
Our website provides the most authoritative and up-to-date datasheet for the SP1105S-01UTG. Customers are strongly encouraged to download the datasheet directly from this product page to access comprehensive electrical specifications, design guidelines, and application recommendations.
Quality Distributor
IC-Components is a premium distributor for Hamlin / Littelfuse products, specializing in genuine and high-quality TVS diodes like the SP1105S-01UTG. We invite customers to request a quote today and enjoy the advantages of trusted sourcing, prompt global delivery, and professional technical support available exclusively through our platform.
