.025 NPN Phototransistors

PRODUCT DESCRIPTION A small area high speed NPN silicon phototransistor in a 3 mm diameter, lensed plastic package. The package material transmits infrared and blocks visible light. These devices are spectrally and mechanically matched to the VTE33xxLA series of IREDs.

Low-cost visible and near-IR photodetection

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Double cassette tape recorder system preamplifier

Double cassette tape recorder system preamplifier The BA3423S is a record /playback system preamplifier for radio cassette decks. With four control pins it allows switch ing between I/O for the A (play only) and B (record and play) mechanisms, input for tape, radio, and microphone, on and off

TRIPLE DIFFUSED PNP TRANSISTOR(AUDIO FREQUENCY AMPLIFIER)

AUDIO FREQUENCY AMPLIFIER APPLICATION. FEATURES • High Breakdown Voltage : VCEO=150V(Min.). • Low Output Capacitance : Cob=5.0pF(Max.). • High Transition Frequency : fT=120MHz(Typ.). • Complementary to KTA1360.

OVERVOLTAGE SENSING CIRCUIT

This overvoltage protection circuit (OVP) protects sensitive electronic circuitry from overvoltage transients or regulator failures when used in conjunction with an external “crowbar” SCR. The device senses the overvoltage condition and quickly “crowbars” or short circuits the supply, forcing the

OVERVOLTAGE SENSING CIRCUIT

This overvoltage protection circuit (OVP) protects sensitive electronic circuitry from overvoltage transients or regulator failures when used in conjunction with an external “crowbar” SCR. The device senses the overvoltage condition and quickly “crowbars” or short circuits the supply, forcing the