The UY1N is a half wave rectifier designed to operate in domestic equipment without a mains transformer. The 100 mA heater is designed for heater chain use directly across the mains with a ballast resistor to drop and excess voltage.The UY1N can supply up to 140 mA of output current and is rated to work with a large maximum reservoir capacitor of 50μF.
End on the anode can be seen to consist of two plates pressed together with a small central cylindrical hole for the cathode to sit in.The wide glass tube envelope is 30 mm in diameter, and excluding the IO base pins is 79 mm tall.References: Data-sheet, 3002 & 1040. Type UY1N was first introduced in 1941. See also 1941 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |  h | nc | a | nc | ic | nc | k | h |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | mAa | 
| 50 | 0.1 | 250 | 140 |
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Updated January 07, 2022.
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