Alternative Part
1. TL431BCLPRAG Substitution Conclusion
The TL431BCLPRAG can serve as a full replacement for the original KA431LZTA, as both are adjustable shunt voltage references manufactured by onsemi. Their core parameters are identical, including a minimum output voltage of 2.495V, maximum output voltage of 36V, output current of 100mA, typical temperature coefficient of 50ppm/°C, cathode current of 1mA, and TO-92-3 package. The key difference lies in the tolerance: TL431BCLPRAG offers ±0.4%, which is tighter than the ±0.5% of KA431LZTA. This provides higher output accuracy and narrower reference voltage variation, thereby improving system stability and precision in application. The stricter tolerance does not introduce compatibility issues and may instead enhance performance. Other unspecified parameters such as noise and input voltage range show no conflicts, ensuring both electrical and mechanical compatibility. The substitution is therefore feasible and may offer performance optimization.
2. TL431BCLPRMG Substitution Conclusion
The TL431BCLPRMG can also fully replace the original KA431LZTA. Its technical parameters are identical to those of the TL431BCLPRAG, including ±0.4% tolerance, voltage range of 2.495V to 36V, output current of 100mA, temperature coefficient of 50ppm/°C, and TO-92-3 package. The suffix “MG” versus “AG” likely indicates packaging or production lot variations (e.g., reel format), but based on the given specifications, this does not affect electrical characteristics. Therefore, TL431BCLPRMG offers the same advantages as TL431BCLPRAG in substitution: tighter tolerance and higher reference accuracy, which help reduce voltage error in circuit design and improve reliability. All key parameters match with no adverse differences, making the substitution directly applicable.
Analysis ID: 6F80-F8B2000
Based on part parameters and for reference only. Not to be used for procurement or production.
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