Littelfuse S4010D Sxx10x Series SCR Thyristor, 400V 10A

Littelfuse S4010D Sxx10x Series SCR Thyristor, 400V 10A

The Littelfuse S4010D is part of the Sxx10xSx/Sxx10x Series of silicon controlled rectifiers (SCRs), engineered for uni-directional switch applications such as phase control, heating, motor speed controls, converters/rectifiers, and capacitive discharge ignitions. This device is rated for a 400V repetitive peak off-state voltage (VDRM) and a 10A on-state current (Itrms), and is housed in a compact TO-252 (D-Pak) package. Built with glass-passivated junctions and RoHS compliant, halogen-free construction, this SCR delivers reliable switching performance for demanding industrial and commercial electrical control circuits.

Key Features

• Package Size: TO-252 (D-Pak) package for compact, surface-mount SCR designs.
• Voltage Rating: 400V repetitive peak off-state voltage (VDRM), with series voltage capability up to 1000V.
• Current Handling: 10A on-state current (Itrms) with a non-repetitive surge current (ITSM) rating up to 100A at 60Hz half cycle.
• Low Gate Trigger Current: Gate current trigger level of 0.2 to 15 mA at approximately 1.5V (VGTMAX), with sensitive-gate versions of this series triggering below 500µA for use with sense coils, proximity switches, and microprocessors.
• Glass-Passivated Junctions: Supports long-term reliability and consistent switching performance.
• Halogen Free & RoHS Compliant: Meets environmental compliance requirements for modern electrical designs.
• Switching Characteristics: On-state voltage (VTM) of 1.6V, gate trigger time (TGT) of 2µs, and turn-off time (Tq) of 35µs.

Certifications & Compliance

• RoHS Compliant
• Halogen Free

Technical Specifications

• VTM (V): 1.6
• TGT (µs): 2
• di/dt @ 110°C (A/µs): 100
• On-State Current (Itrms) (A): 10
• IDRM@VDRM 125°C (mA): 0.5
• Non-Repetitive Surge Current (ITSM 60Hz) (A): 100
• Repetitive Peak Off-State Voltage (VDRM) (V): 400
• Tq(µs): 35
• dv/dt @ 125°C (V/µs): 250
• Max Gate Trigger Current (IGTMAX) (mA): 15
• Gate Trigger Voltage (VGTMAX) (V): 1.5

Typical Applications

• Phase Control Circuits
• Heating Control Systems
• Motor Speed Controls
• Converters and Rectifiers
• Capacitive Discharge Ignition Systems
• Sensitive-Gate Triggering via Sense Coils, Proximity Switches, and Microprocessors

Why Littelfuse?

Littelfuse engineers the Sxx10x Series SCR thyristors with glass-passivated junctions and RoHS compliant, halogen-free construction for dependable, code-compliant performance in professional electrical control applications. With a series voltage capability up to 1000V and surge current handling to 100A at 60Hz half cycle, the S4010D is built to hold up in demanding uni-directional switching environments where consistent, low-current triggering matters.