The Hamlin / Littelfuse SP1003-01ETG is a high-performance Transient Voltage Suppressor (TVS) diode specifically designed for automotive electronic systems, offering robust circuit protection in challenging environments. This unidirectional TVS device is engineered to safeguard sensitive electronic components from unexpected voltage spikes and electrical transients.
Featuring a compact SOD-882 surface mount package, the SP1003-01ETG is optimized for space-constrained automotive applications where reliable protection is critical. The device can effectively manage voltage events with a reverse standoff voltage of 5V and a breakdown voltage of 6V, providing a clamping voltage of approximately 12V during peak pulse events. It can handle peak pulse currents up to 7A, making it suitable for protecting various electrical circuits and electronic subsystems.
Designed to withstand extreme operational conditions, this TVS diode operates reliably across a wide temperature range from -40°C to 125°C, ensuring consistent performance in automotive environments. The component is AEC-Q101 qualified, indicating its compliance with automotive industry reliability standards and making it ideal for use in automotive electronic control units, infotainment systems, sensor interfaces, and power management circuits.
The SP1003-01ETG is RoHS3 compliant, demonstrating its commitment to environmental sustainability and adherence to global electronic component regulations. Its single unidirectional channel and low-profile surface mount design enable easy integration into compact electronic assemblies.
Alternative or equivalent models in the same series include other Hamlin / Littelfuse SP1003 series TVS diodes, which may offer slightly different voltage and current characteristics to suit specific circuit protection requirements. Designers should consult the manufacturer's documentation for precise comparisons and compatibility.
Key advantages include high surge protection, compact packaging, automotive-grade reliability, wide temperature tolerance, and efficient transient voltage suppression, making this TVS diode an essential component for ensuring the longevity and reliability of automotive electronic systems.
SP1003-01ETG (1)
SP1003-01ETG Key Technical Attributes
Manufacturer Part Number SP1003-01ETG
Manufacturer Hamlin / Littelfuse
Main Category Circuit Protection
Small Classification TVS Diodes (Transient Voltage Suppressors)
Series Automotive, AEC‑Q101, SP1003, SPA
Configuration Unidirectional, 1 channel
Type Zener TVS
Reverse Standoff Voltage 5 V (max)
Breakdown Voltage 6 V (min)
Clamping Voltage 12 V typ at specified surge
Peak Pulse Current 7 A (8/20 µs waveform)
Operating Junction Temperature −40°C to +125°C
Mounting Surface mount
Supplier Device Package SOD‑882
Package / Case SOD‑882
Packaging Tape & Reel (TR)
Power Line Protection No (intended for signal/data lines)
RoHS ROHS3 Compliant
Applications Automotive signal and data line protection
Available Quantity 75,300 units (subject to prior sale)
SP1003-01ETG Packing Size
Type Ultra‑compact 2‑lead plastic SMD package (SOD‑882)
Material Molded epoxy body with lead‑free plated terminations
Size SOD‑882 miniature footprint (approximately 1.0 × 0.6 mm class; see datasheet for exact outline and land pattern)
Pin Configuration 2 terminals; unidirectional TVS (cathode marked for polarity, anode opposite)
Thermal Characteristics Junction operating range −40°C to +125°C; small outline requires surge/power derating per datasheet curves
Electrical Properties Unidirectional zener‑type TVS; VRWM 5 V (max), VBR ≥ 6 V, VC 12 V typ at Ipp, Ipp 7 A (8/20 µs)
Reel Packaging Supplied in 8 mm carrier tape for automated pick‑and‑place
SP1003-01ETG Application
Primary Use ESD and transient surge suppression for 5 V automotive signal and data lines
Target Markets Automotive electronics requiring AEC‑Q101 qualified protection components
Example Interfaces Microcontroller I/O, sensor lines, switch/key inputs, low‑voltage communication and control lines not carrying power
SP1003-01ETG Features
Designed for 5 V signal lines, the SP1003-01ETG provides unidirectional clamping that helps protect sensitive IC pins from electrostatic discharge and other transient events without conducting during normal operation below the 5 V reverse standoff voltage. Its 6 V minimum breakdown and 12 V typical clamping at the rated surge current give a predictable protection window that helps maintain signal integrity and device survivability during fast transients. The device supports 7 A (8/20 µs) surge pulses, allowing robust suppression for cable- and board‑level disturbances in automotive environments. The ultra‑small SOD‑882 package minimizes parasitics and saves PCB area, enabling protection right at the connector or IC pin for best performance. As a unidirectional zener‑type TVS, it is well suited to DC‑biased lines where negative transients can be tightly clamped while minimizing leakage during normal operation. Tape‑and‑reel supply streamlines high‑volume SMT assembly, and the ROHS3 compliance supports environmentally responsible designs. Being part of Littelfuse’s SPA/SP1003 automotive portfolio, it complements system‑level EMC strategies with fast response, low dynamic resistance clamping behavior, and consistent lot‑to‑lot performance.
SP1003-01ETG Quality and Safety Features
Automotive AEC‑Q101 qualification supports stringent reliability expectations for on‑vehicle electronics, including temperature cycling, high‑temperature operating life, and surge robustness screening. ROHS3 compliance ensures lead‑free construction and alignment with global substance restrictions. Clear polarity marking and a standardized SOD‑882 footprint reduce assembly risk, while the specified −40°C to +125°C junction temperature range covers harsh automotive ambient conditions. Manufactured by Hamlin / Littelfuse, a recognized leader in circuit protection, the device benefits from established quality systems, full traceability, and process controls expected for automotive‑grade components.
SP1003-01ETG Compatibility
Footprint‑compatible with standard SOD‑882 land patterns used for single‑line TVS protectors, allowing straightforward replacement within many SOD‑882 ESD/surge diodes in the same family when electrical ratings match. Electrically compatible with 5 V logic and low‑power signal lines; use the unidirectional orientation (cathode to protected line, anode to ground) for DC‑biased nodes. Not intended for direct protection of power rails or high‑current power distribution; for those use cases, select power‑rail TVS devices with appropriate standoff voltages and surge ratings. The SOD‑882 form factor suits dense PCBs, fine‑pitch connectors, sensor modules, and infotainment subassemblies where minimal capacitance and minimal series impedance are desired close to the signal entry point.
SP1003-01ETG Datasheet PDF
For the most authoritative and up‑to‑date technical details, download the official SP1003-01ETG datasheet directly from this page on our website. IC‑Components hosts the current, manufacturer‑verified datasheet for this exact part number, including full electrical characteristics, mechanical outline and land pattern, recommended derating, and application guidance. We strongly recommend obtaining the PDF here to ensure you design with the latest specifications.
Quality Distributor
IC‑Components is a premium distributor for Hamlin / Littelfuse products, offering genuine, traceable inventory and responsive global support. With 75,300 units available and access to additional factory allocations, we can support prototypes through volume production with competitive pricing, date‑code control, and fast shipment. Request a quote on our website today for preferential pricing, lead‑time options, and technical support from our specialist team.
