6/23/2023 0 Comments Photo transistor cross reference![]() ![]() This is the composition of the LED, which with a translucent housing is used as a long-lived indicator light in CED players and as an infrared transmitter in CED remotes. If a different semiconductor material such as gallium arsenide phospide is used, the excess energy can be released at a lower wavelength visible to the human eye. The general purpose silicon diode above emits excess energy in the form of heat when conducting current. The diode terminals are the anode and the cathode, and the "arrow" inside the diode symbol points toward the cathode, indicating current flows in that direction when the diode is forward biased and conducting current. This characteristic is used to perform rectification or the conversion of AC current to DC by clipping off the negative portion of a sinusoidal AC waveform. Part numbers with linked text will open a PDF data sheet when clicked on.Ī diode can be thought of as a valve that permits the flow of electrical current in one direction but not the other. ![]() The part numbers with an "X" in the replacement column have no cross reference data available period, while those marked N/A are listed in cross reference guides, but that distributor doesn't supply the part. ![]() These two transistors are by far the most common, being used a number of times in any given player, while the more exotic transistors, like the programmable unijunction and hall effect latch types are used only once or twice. With general purpose transistors, there are again two primary industry standard substitutions, the PN2222 for most of the TO-92 package NPN transistors and the PN2907 for the corresponding PNP bipolar type. But varactor and zener diodes need to closely match the original part, so the capacitance effect or reference voltage of the replacement part is within specification. With light emitting diodes just about any LED in the 5mm T1.75 package can be substituted, so different colors and even blinking LEDs can be used. This is why so many of the different RCA part numbers in the tables cross reference to the same industry standard part.įor general purpose diodes, there are only two replacement types required, the 1N4009 in the DO-35 package and the 1N4007 in the slightly larger DO-41 package. But for purposes of repair, where only a single part is being replaced, a generic industry diode or transistor of the same type and package style as the original part will probably work just fine. The purpose for this was to achieve overall manufacturing specifications within a given tolerance range. RCA used a lot of different part numbers for these parts that were only slightly different from one another. Most of the diodes and transistors in CED players are common parts in the electronics industry, and some can be obtained for less than 10 cents each from Jameco Electronics. NTE Electronics is an electronic distributor that provides a wide range of IC's corresponding to specific manufacturer's part numbers. The tables further down this page cross-reference RCA CED player diodes and transistors to their industry equivalent, NTE, TCE, ECG, Radio Shack, and Jameco counterparts. RCA Player Diode and Transistor Reference Guide RCA CED Player Diode and Transistor Reference Guide ![]()
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