Littelfuse SA Series 500W Glass-Passivated TVS Diode

Littelfuse SA Series 500W Glass-Passivated TVS Diode

The Littelfuse SA Series is a family of transient voltage suppressor (TVS) diodes engineered to protect sensitive circuits from voltage transients and surge events, available in 10V, 15V, 20V, and 30V reverse standoff voltage (VR/Vso) ratings to match a range of circuit protection requirements. Every SA Series diode is rated for 500W peak pulse capability at a 10x1000µs waveform with a 0.01% duty cycle repetition rate, and each device features a glass passivated junction for reliable clamping performance across the voltage range. The plastic package carries an UL 94V-0 flammability classification, and the SA Series is built with Matte Tin Lead-free plating for RoHS-compliant, halogen-free assembly.

Key Features

• Peak Pulse Power: 500W peak pulse capability at a 10x1000µs waveform, with a 0.01% duty cycle repetition rate for reliable transient suppression across the SA Series.
• Standoff Voltage Range: Available in 10V, 15V, 20V, and 30V reverse standoff voltage (VR/Vso) ratings to support stable circuit protection under normal operating conditions.
• Fast Response: Typically responds in less than 1.0ps from 0 Volts to minimum breakdown voltage (BV min), enabling rapid transient clamping.
• Glass Passivated Junction: Provides consistent electrical characteristics and long-term reliability.
• High-Temperature Soldering Guaranteed: Rated for 265°C for 10 seconds at 0.375" (9.5mm) lead length with 5 lbs (2.3kg) tension.
• Low Incremental Surge Resistance: Delivers excellent clamping capability during surge events.
• Finish: Matte Tin Lead-free plated leads for reliable termination.
• Low Leakage: Low reverse leakage current above the rated standoff voltage for minimal standby current draw.

Certifications & Compliance

• UL 94V-0 Flammability Classified Plastic Package
• RoHS Compliant
• Halogen-Free

Technical Specifications

• Peak Pulse Power: 500W
• Waveform: 10x1000µs
• Duty Cycle: 0.01% repetition rate
• Reverse Standoff Voltage (VR/Vso) Options: 10V, 15V, 20V, 30V
• Max Junction Temperature: 175°C
• Package: Plastic, UL 94V-0 Flammability Classified
• Lead Finish: Matte Tin, Lead-free
• Breakdown voltage and max clamping voltage vary by the selected standoff voltage rating; refer to manufacturer documentation for per-rating values.

Typical Applications

• Circuit Protection Against Voltage Transients and Surges
• Industrial and Commercial Electronic Equipment Protection
• Power Supply and Line Protection Circuits
• Telecommunications Equipment Protection
• Sensitive Component and PCB-Level Surge Protection

Why Littelfuse?

Littelfuse engineers the SA Series with a glass passivated junction and RoHS-compliant, halogen-free construction to deliver dependable transient voltage suppression across the 10V-30V standoff voltage range for demanding electronic applications. With a UL 94V-0 flammability classified package and guaranteed high-temperature soldering performance, the SA Series is built for consistent, code-compliant reliability in professional circuit protection designs.