Z0109NA,126

Overview

The Z0109NA,126 is a bidirectional triac manufactured by WeEn Semiconductors, designed for general-purpose AC switching applications. It features an RMS on-state current (It RMS) of 1 A and supports a non-repetitive peak on-state current of 8.5 A. The device offers a rated repetitive peak off-state voltage (VDRM) of 800 V with a maximum off-state leakage current of 500 uA at VDRM. Key electrical characteristics include an on-state voltage of 1.3 V, a maximum holding current (Ih) of 10 mA, and gate trigger parameters of 1 V (Vgt) and 10 mA (Igt). It operates within a temperature range up to +125 C and is housed in a surface-mount SOT-223-4 package.

Feature Summary

• High-voltage blocking capability suitable for mains-powered circuits
• Surface-mount design for automated assembly processes
• Standardized gate triggering requirements for simple driver interfacing

Applications

• Lighting control systems
• Solid-state relays
• Motor speed controllers

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact packaging configuration and tape-and-reel specifications. Ensure compliance with RoHS and REACH directives as stated in the datasheet. Confirm lead times and availability directly with authorized distributors or the manufacturer, as supply chain conditions vary. Validate that the component meets all environmental operating limits required for the target application.

Selection Notes

Select this component when a 1 A RMS current rating and 800 V blocking voltage are required in a compact surface-mount form factor. Compare gate trigger sensitivity and holding current requirements against the driving circuit capabilities. Consider thermal management needs given the SOT-223-4 package size and maximum junction temperature of +125 C. Evaluate alternative packages if higher current density or different mounting styles are necessary.

Part Context

This part belongs to the Z01xx series of triacs from WeEn Semiconductors, which are widely used in consumer electronics and industrial controls. The series provides reliable AC power switching solutions with standardized pinouts and electrical characteristics. The Z0109 variant specifically targets applications requiring moderate current handling and high voltage isolation in a small footprint.

Replacement Considerations

Cross-reference with other 1 A, 800 V triacs in SOT-223-4 packages from manufacturers like STMicroelectronics or Littelfuse. Verify pinout compatibility and electrical parameter equivalence before substitution. Check for any differences in gate sensitivity or thermal resistance that might impact circuit performance.