Product Overview
MJE13007A High Voltage NPN Switching Transistor in a TO-220 Package
Condition
New, unused stock. The photographed piece is a TO-220 device with a bare metal tab, an open mounting hole, and three straight uncut leads. The molded black body is marked MOSPEC over MJE13007A, with FB 042 below the part number. The lower part of each lead is bright plating, and the top third, where the leads leave the body, carries a dark reddish brown mottled deposit on all three leads that we have not identified - it may be storage tarnish or a residue from the factory tinning. The leads are unbent and uncut, with no board residue and no ink or paint marks on the tab. One piece out of the 25 on the shelf was photographed and the rest were not inspected individually. Buy on the markings you can see in the photos.
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Product Overview
The MJE13007A is a silicon NPN bipolar junction transistor built for high voltage fast switching duty, listed here with a 4 MHz frequency rating and an operating temperature range of -65 C to 150 C. It comes in the familiar three lead TO-220 package with a drilled metal tab, so it bolts straight to a heatsink or a chassis wall and drops into any board laid out for a standard through-hole power device. The 13007 part number is one of the long-lived industry numbers in switching work, which is why it still turns up on repair lists for gear that was built decades ago. Voltage, current, and gain figures are not confirmed here; check them against the manufacturer datasheet for MJE13007A before you design it in.
Key Features
- Device: silicon NPN bipolar junction transistor (BJT)
- Part number: MJE13007A
- Class: high voltage, fast switching
- Frequency rating: 4 MHz
- Operating temperature: -65 C to 150 C
- Package: TO-220 with bare metal tab and mounting hole (from photos)
- Leads: three straight, uncut, through-hole, with an unidentified dark reddish brown deposit at the shoulders (from photos)
- Body marking: MOSPEC, MJE13007A, FB 042 (from photos)
- Condition: New, unused
- Voltage, current, and gain ratings: Not confirmed - verify against the datasheet before use
Applications
- Bench technician rebuilding the switching stage of a dead power supply and matching the original 13007 footprint
- Maintenance electrician keeping older electronic ballasts and drivers running instead of replacing whole fixtures
- Hobbyist restoring vintage equipment who needs a through-hole power device that bolts to an existing heatsink
- Prototype builder stocking a few high voltage NPN switches in the spares drawer before a board spin
Frequently Asked Questions
What exactly is printed on the transistor?
Three lines on the molded body: MOSPEC, then MJE13007A, then FB 042. The photos show the marking at full size so you can compare it to whatever is on your board before you order.
What voltage and current can it handle?
Not confirmed here. What we can confirm from this listing is the device type, the 4 MHz frequency rating, and the -65 C to 150 C operating temperature range. Collector voltage, collector current, and gain should be checked against the manufacturer datasheet for MJE13007A before you commit it to a design.
Are these pulls or new parts?
Sold as new, unused stock. On the photographed piece the leads are full length and uncut with no cut marks at the tips, and there is a dark reddish brown deposit at the shoulders where the leads leave the body that we have not identified. We photographed one piece out of the 25 and did not inspect every unit, so judge the rest from the same photos.
How does it mount?
Standard TO-220 style: the metal tab carries a mounting hole for a screw into a heatsink or chassis. Whether the tab is electrically live is not confirmed here, so treat it as live and use insulating hardware unless the datasheet tells you otherwise.
Can I just buy the two or three I actually need?
Yes. That is the point of counting them out one at a time. Stock stands at 25 pieces, so you can take one for a single repair, three for a prototype run, or the whole shelf if you are stocking a bench, and you pay for exactly that many instead of a forced bag of 100 with 97 pieces you will never touch. Shipping is $8 flat rate and free once your order passes $28, and orders leave our Idaho warehouse the same or next business day.
The 13007 is the transistor that quietly did the switching in a generation of power supplies and lighting gear, a part number that has outlasted most of the boards it was soldered into. Bolt one to a heatsink and put it back to work.
