SD1A240A-13

Overview

The SD1A240A-13 is a bidirectional Transient Voltage Suppression (TVS) diode manufactured by Diodes Incorporated, designed for electrostatic discharge (ESD) protection in data lines. It operates within the SMAJ series and utilizes an SMA (DO-214AC) surface-mount package. The device features a working voltage of 24 V, a breakdown voltage of 26.7 V, and a maximum clamping voltage of 38.9 V. It handles a peak pulse current of 10.3 A and dissipates up to 400 W of transient power. The component supports a wide operating temperature range from -55 °C to +150 °C junction temperature.

Feature Summary

• Bidirectional configuration suitable for protecting differential data lines against ESD events.
• High energy absorption capability with 400 W peak pulse power dissipation rating.
• Compact SMA (DO-214AC) surface-mount footprint for space-constrained PCB layouts.

Applications

• Protection of high-speed data interfaces such as USB and HDMI ports.
• ESD suppression in telecommunications equipment input/output stages.
• Surge protection for consumer electronics signal lines.

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Diodes Incorporated or authorized distributors before integration. Confirm that the SMA (DO-214AC) package dimensions match your PCB footprint requirements. Ensure the 400 W peak pulse rating aligns with the expected ESD waveform standards in your target application environment.

Selection Notes

Select this component when bidirectional protection is required for 24 V nominal data lines. Compare the 38.9 V clamping voltage against the maximum allowable input voltage of the protected circuitry to ensure safe operation during transient events. Verify that the 10.3 A peak pulse current capacity meets the severity of anticipated ESD strikes in the final product deployment scenario.

Part Context

This part belongs to the SMAJ series of TVS diodes from Diodes Incorporated, which offers various voltage ratings within the same SMA package. The 'A' suffix typically denotes bidirectional polarity, while '13' indicates standard tape-and-reel packaging. This series provides a cost-effective solution for general-purpose ESD protection in compact electronic assemblies.

Replacement Considerations

Direct substitutes include other SMAJ24CA or SMAJ24A variants from different manufacturers, provided they share the 24 V working voltage, bidirectional characteristic, and DO-214AC package. Verify pinout compatibility and thermal performance metrics before substitution.

FAQ

Is the SD1A240A-13 unidirectional or bidirectional?

It is a bidirectional TVS diode, indicated by the 'A' in the model number, making it suitable for AC or differential signal lines.

What is the maximum clamping voltage at peak pulse current?

The maximum clamping voltage is 38.9 V when subjected to its rated peak pulse current of 10.3 A.

Does this component support high-temperature environments?

Yes, the device is rated for a junction temperature range from -55 °C to +150 °C.