Product Overview
Philips ECG 123AP - NPN Silicon Replacement Transistor, TO-92
Condition
Unused, new old stock in original packaging. The photo shows a representative unit from our stock. Same or next business day shipping from our Idaho warehouse. Honest pricing, no nonsense. Online since 1999. We are here for our customers, with a no-hassle satisfaction guarantee.
Product Overview
ECG was Sylvania's replacement line, taken into North American Philips and sold as Philips ECG, which makes an ECG number a service cross-reference rather than a JEDEC type. The piece photographed here is a black TO-92 marked 123 above AP, photographed inside its printed bag, and the bag's own label carries the whole specification: ECG 123AP, NPN-Si, AF/RF AMP, DRIVER, COMPL TO ECG 159, CASE TO-92, with an E B C pinout sketch, PHILIPPINES, 5A and AC along the bottom, and a footer naming Philips ECG of Williamsport, PA 17701, a North American Philips company. The header strip above the label reads QTY 1 UNIT EACH, and 10 of this number are on the shelf.
Key Features
- Type: NPN silicon AF and RF amplifier and driver, per the bag label
- Collector-base voltage: 75 V (VCBO, printed on the bag label)
- Collector-emitter voltage: 40 V (VCEO, printed on the bag label)
- Emitter-base voltage: 6 V (VEBO, printed on the bag label)
- Collector current: 600 mA (IC, printed on the bag label)
- Power dissipation: 500 mW (PD, printed on the bag label; general NTE-lineage data for this number gives 625 mW, and this page follows the label on the bag you are buying)
- Transition frequency: 300 MHz (FT, printed on the bag label)
- Current gain: 200 typical (HFE, printed on the bag label; general NTE-lineage data gives about 300 typical)
- Package and pinout: TO-92 case, E B C left to right per the diagram on the bag label
- Complement: ECG 159, per the bag label
- Role: published NTE-lineage data lists ECG 123AP as a replacement for the 2N2222A class; it is a replacement type, not a 2N2222A
- Verify against NTE's published ECG 123AP data before designing in.
Applications
- Service replacement in 2N2222A class NPN positions
- General purpose AF and RF amplification
- Driver stages ahead of a complementary output
- Through-hole board repair calling out a TO-92 NPN
Frequently Asked Questions
How many should I order?
Order the count the repair needs. 10 of this number are on the shelf, and the header strip on the photographed bag's label reads QTY 1 UNIT EACH, so a bag holds a single piece. Shipping is $8 flat rate and free on orders over $28, so small parts like this ship smartest as part of a larger order.
Is this a 2N2222A?
No, and this page will not say it is. ECG numbers are service cross-references, where one ECG type stands in for a range of originals, and published NTE-lineage data lists ECG 123AP as a replacement for the 2N2222A class. What you receive is exactly what the label describes: NPN silicon, TO-92 case, 75 V VCBO, 40 V VCEO, 6 V VEBO, 600 mA IC, 300 MHz FT, E B C pinout, made in the Philippines. If your board calls for a genuine JEDEC 2N2222A from an original maker, this is not that part.
A Philips ECG bag out of Williamsport, one transistor inside and its entire datasheet printed on the outside.
