Small signal transistors
| Device | Description | Equivalent |
| DTA114EU | PNP, 50-100 mA, 50 V. Digital transistor with built-in bias resistor |
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| RN2421 | PNP, 800 mA, 50 V. Digital transistor with built-in bias resistor |
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| RN2422 | PNP, 800 mA, 50 V. Digital transistor with built-in bias resistor |
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| RN2423 | PNP, 800 mA, 50 V. Digital transistor with built-in bias resistor |
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| RN2424 | PNP, 800 mA, 50 V. Digital transistor with built-in bias resistor |
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| RN2425 | PNP, 800 mA, 50 V. Digital transistor with built-in bias resistor |
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| RN2426 | PNP, 800 mA, 50 V. Digital transistor with built-in bias resistor |
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| RN2427 | PNP, 800 mA, 50 V. Digital transistor with built-in bias resistor |
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| 2N914 | NPN, general purpose |
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| 2N2222 | NPN, switching applications |
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| 2N3904 | NPN, general purpose |
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| 2SA1020 | PNP, general purpose |
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| 2SA1162 | PNP, general purpose |
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| 2SC1815 | NPN, general purpose |
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| 2SC2021 | NPN, general purpose |
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| 2SC2655 | NPN, general purpose |
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| 2SC2712 | NPN, general purpose |
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| 2SC4038 | NPN, general purpose |
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| 2SC4213 | NPN, for muting and switching applications | BC817W |
| 2SC9014 | NPN, pre-amplifier. Low level & low noise | BC337-25 |
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