Product Overview
Philips BZX84-C5V1 5.1V Zener Diodes in SOT-23 - 20 Unused Surface Mount Pieces
Condition
Unused, new old stock. The photos show the parts exactly as they come out of stock: cut strips of black embossed carrier tape, sprocket holes along one edge, one three-lead SOT-23 body seated in each pocket. Under magnification every body carries the same laser marking, a large Z2 followed by a small p and a sideways 5n code. The epoxy bodies are clean matte black, the tin-plated leads are bright, straight, and show no solder or bending. Cover tape has been pulled back so the pieces can be counted out; a little dust sits on the tape carrier itself, not on the devices. You receive 20 pieces.
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
The BZX84-C5V1 is a single Zener diode in the three-lead SOT-23 surface mount package, rated 5.1V nominal with 5% tolerance and 250mW of power dissipation. It is the small-signal workhorse for low-power voltage regulation, overvoltage protection, and low voltage stabilization or reference duty where there is no room for a leaded part. Philips built the BZX84 series as a full ladder of Zener voltages, and the C suffix designates the 5% selection, so a 5V1 device lands right where a 5V rail or an analog reference wants a hard ceiling. The pieces in these photos are marked Z2, the type code used for this member of the series, which makes them easy to confirm on the bench before they go anywhere near a reflow oven. Sold in groups of 20.
Key Features
- Zener voltage: 5.1V nominal
- Tolerance: 5% (C selection)
- Power dissipation: 250mW
- Package: SOT-23, three-lead surface mount (SMD/SMT)
- Manufacturer: Philips
- Part number: BZX84-C5V1
- Body marking on these pieces: Z2, with a small p and a sideways 5n code
- Quantity: 20 pieces per order, supplied on cut carrier tape
- Condition: unused, new old stock
- Function: voltage regulation, overvoltage protection, low voltage stabilization and reference
Applications
- Board repair technician replacing a shorted 5V1 clamp on a control board and needing the same SOT-23 footprint the original layout expects
- Hardware developer hand-populating a prototype who wants a 5.1V ceiling across a sensor input before the first power-up
- Instrument builder setting a simple low-current reference rail where a 250mW part is all the design can dissipate
- Maker restoring a piece of 1990s or 2000s consumer gear that used Philips small-signal parts throughout
Frequently Asked Questions
The parts say Z2, not BZX84-C5V1. Is that the right device?
Yes. SOT-23 bodies are too small for a full part number, so the manufacturer laser marks a short type code instead. These are marked Z2, the code used for this member of the BZX84 series, with a small p and a sideways 5n lot code beside it. Photo two is a macro shot of a single body so you can compare the marking against your own reference before ordering.
Have these been electrically tested?
No. They are sold as unused new old stock in factory carrier tape, and we have not measured Zener voltage, test current, leakage, or temperature coefficient on individual pieces. Those numbers are not confirmed here - check them against the BZX84 datasheet before use, and curve-trace one piece from the strip if your design depends on a tight reference.
How do they ship, and can I hand solder them?
They ship as cut strips of the original embossed carrier tape, not loose in a bag, so the pieces stay oriented and the leads stay clean. SOT-23 hand soldering with a fine tip is routine work, and the tape strip makes it easy to pick parts one at a time without chasing them across the bench.
Why buy 20 pieces here instead of a full reel or a mystery assortment?
Because 20 is the number that fits real work. A repair takes one, a prototype takes a few, and the rest go in the drawer labeled 5V1 for the next time. Buying a 3,000-piece reel to fix one board means paying for 2,980 diodes you will never place, and a bulk assortment gives you a hundred unmarked parts with no guarantee that any of them are the 5.1V grade. Here you get a known Philips part number, photographed down to the body marking, in a count you can actually use. Shipping is $8 flat rate and free once your order passes $28, and orders leave our Idaho warehouse the same or next business day.
A 5.1 volt ceiling is a quiet promise to everything downstream: this far and no farther. Twenty of them on tape, and the next rail you build gets that promise the moment you set the iron down.
