Alternative Part
Shunt Voltage Reference IC Adjustable 2.495V 36 VV ±0.5% 100 mA TO-92-3
1. TL431BQLPRE3 Substitution Conclusion
The TL431BQLPRE3 can serve as a direct replacement for the original part, provided key parameters are compatible. However, two differences may introduce potential effects. Its higher reference voltage accuracy (±0.5% vs ±1%) improves initial voltage precision, but the lower required cathode operating current (700µA vs 1mA) may affect stability in low‑current bias designs. Additionally, the temperature coefficient is not specified; if the application is sensitive to temperature drift, characterization under actual conditions is recommended. The package is compatible, and key electrical parameters (output voltage range, maximum current) remain unchanged, making substitution feasible. Nevertheless, performance should be evaluated under dynamic load and across the intended operating temperature range.
2. TL431BVLPRAG Substitution Conclusion
The TL431BVLPRAG represents a more optimized alternative, offering key performance improvements while maintaining core compatibility with the original part. Accuracy is notably higher (±0.4% vs ±1%), and the temperature coefficient matches the original (typically 50ppm/°C), ensuring stability across a wide temperature range. Cathode current requirement remains the same (1mA), allowing full bias‑design compatibility. The package is an extended‑body TO‑92; verify mechanical clearance, but electrical pinout and characteristics are identical. Therefore, this device can be considered a drop‑in performance‑enhanced replacement, improving system accuracy without circuit modifications.
Analysis ID: 6F32-3B17000
Based on part parameters and for reference only. Not to be used for procurement or production.
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