Product Overview
Harris 16-Pin Plastic DIP, Marked I3-508A-5, Unused From Long-Term Storage
Condition
New: unused stock, never installed. Three pieces photographed on pink anti-static bubble wrap. The leads are bright tin, straight, and clean, with no solder, no flux residue, and no bend or socket marks on any of the 16 leads. Bodies are clean black plastic with sharp, legible white markings: the Harris logo followed by I3-508A-5 on the first line, and the date code on the second. Two pieces read 8616 with the triangle prefix, and one reads H9048. What the photos show is what we have here: loose devices in anti-static wrap, with no original tube, reel, or factory label.
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Product Overview
A Harris Semiconductor integrated circuit in a 16-lead plastic dual inline package, eight leads per side, marked with the Harris logo and I3-508A-5. The second line carries a standard year-week date code, 8616 on two of the three pieces and H9048 on the third, which puts this small group in the mid-1980s to 1990 window of Harris plastic DIP production. The I3-508A-5 marking follows the Harris HI3-508A-5 part number style, where the logo stands in for the leading H. We are listing these strictly as they are marked and leaving the electrical function to the manufacturer data: look up the Harris number printed on the body and confirm pinout and ratings against that data sheet before you design one in. Sold individually from a shelf count of three.
Key Features
- Marking: Harris logo followed by I3-508A-5, white ink on black plastic
- Package: 16-lead plastic dual inline package, eight leads per side
- Date codes present: 8616 on two pieces, H9048 on one
- Leads: bright tin plating, straight, no solder, flux, or socket marks
- Condition: New, unused, never installed
- Quantity on hand: 3 pieces, sold one at a time
- Storage: anti-static wrap, no original tube, reel, or factory label
- Electrical function and ratings: not confirmed here - verify against the Harris data sheet for the marked number before use
Applications
- Repair technician matching a Harris-marked 16-pin DIP to what came out of a 1980s instrument board
- Restorer rebuilding legacy control or test hardware that expects a period-correct Harris part in the socket
- Bench engineer stocking a spares drawer with a couple of unused DIPs instead of committing to a factory tube
- Collector or archivist tracking Harris Semiconductor date-coded plastic packages
Frequently Asked Questions
What exactly is printed on these parts?
Two lines. The first is the Harris logo followed by I3-508A-5. The second is the date code: 8616 behind a small triangle on two pieces, H9048 on the third. No other text is visible on the top face. We did not photograph the underside, so we make no claim about what is or is not marked there.
Why does the description not state what the chip does?
Because the marking is the only thing we can confirm by hand. The older version of this listing carried a general switching and conversion description that does not line up with the number printed on these bodies, so it is gone. Pull the Harris data sheet for the marked number and confirm function, pinout, and ratings there.
Which date code will I receive?
We have not split the stock by code. Of the three on the shelf, two read 8616 and one reads H9048. If your build needs a specific code, ask before ordering and we will check what is left.
Have these been tested?
No. They are graded on what is visible: unused bodies, straight bright leads, no evidence of installation. Electrical performance is not confirmed - verify against the data sheet before use.
Why buy one or two of these instead of a factory tube of twenty-five?
Because a repair usually needs one. You can take a single piece, or all three if you want a spare and a backup for the spare, and you are buying the exact devices in these photos rather than a sealed tube whose date codes and lead condition you will not see until it arrives. Shipping is $8 flat rate and free once the order passes $28, and orders leave our Idaho warehouse the same or next business day.
Two of these were marked in 1986 and the third four years later, and all three ended up in the same piece of pink wrap waiting on a board that still wants a Harris part in that socket. Read the number off the top, match it to the data sheet, and the next chapter is yours to solder.
