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1W Zener diode 3.6V 1N4729A 3.9V 1N4730A 4.3V 1N4731A 4.7V 1N4732A 5.1V 1N4733A 5.6V 1N4734A 7.5V 1N4735A DO 41|Diodes| - AliExpress
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Zener diode 1N4730A DO 41 single 1W 3.9V straight glass tube 1N4730 regulator|regulator| - AliExpress
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1N4730A-TR Vishay General Semiconductor - Diodes Division | Discrete Semiconductor Products | DigiKey
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