Product Overview
Sealed Archer Blister Card: ILC8069 1.2V Temperature Compensated Voltage Reference in TO-92
Condition
New, unused, still sealed in the original Archer blister card. The front of the card reads Cat. No. 276-1793, ARCHER ELECTRONIC PARTS, ILC8069, VOLTAGE REFERENCE 1.2VDC, MADE IN SINGAPORE, CUSTOM PACKAGED IN USA BY RADIO SHACK, A Division of Tandy Corporation, Ft. Worth, Texas 76102, with an old handwritten shelf sticker in the upper corner repeating the catalog number. The blister is intact and the device is captive inside it; two of the three formed bubbles on the card are empty by design. Photographed out of the blister window, the TO-92 body shows a legible manufacturer logo over 8069 with a grade suffix, and 8231 on the line beneath it, the usual date-code position. The three leads are straight, bright, and full length with no cut or bend marks. The cardstock carries the shelf age you would expect: the back is yellowed, the edges are worn, and there are surface creases across the printed panel. No electrical testing was performed, because the card has not been opened.
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Product Overview
This is a single 1.2V temperature compensated voltage reference in a TO-92 case, sold by Radio Shack under its Archer house brand as catalog number 276-1793. The card front prints the number as ILC8069; the technical panel on the card back prints it as ICL8069, which is how the industry writes it, so both spellings belong to the same device. The card back describes the part as a 1.2V temperature-compensated voltage reference that uses the band-gap principle to achieve excellent stability, and it names the applications Radio Shack had in mind: D-to-A converters, threshold detectors, voltage regulators, battery-powered equipment, and pairing with the ADC0801 A-to-D converter sold alongside it as catalog number 276-1792. The outline drawing on the back shows the TO-92 lead layout with one lead marked NO CONNECTION. Every rating listed below is transcribed from that printed card, not from a general datasheet, so it is what this package actually promises.
Key Features
- Function: 1.2V temperature-compensated voltage reference, band-gap type
- Package: TO-92 case, three leads, one lead shown as no connection on the card outline drawing
- Reverse voltage: 1.25V absolute maximum at 25 C (per card)
- Reverse current: 10 mA absolute maximum (per card)
- Forward current: 10 mA absolute maximum (per card)
- Reverse dynamic impedance: 1 ohm typical (per card)
- Forward voltage drop: 1V typical (per card)
- RMS noise voltage: 5 uV typical (per card)
- Bias current: 50 uA minimum (per card)
- Accuracy: 10 ppm per degree C maximum drift (per card)
- Catalog number: Archer / Radio Shack 276-1793; card front reads ILC8069, card back reads ICL8069
- Device marking: manufacturer logo over 8069 with grade suffix, 8231 beneath
- Origin: made in Singapore, custom packaged in the USA by Radio Shack, a division of Tandy Corporation
- Quantity: one device, sealed in one blister card
Applications
- Bench engineer building the buffered 10V single-supply reference circuit printed on the card back, using an LM108 and the listed resistor string
- Restorer keeping an early-1980s battery-powered instrument alive, where a low-current band-gap reference sets the measurement threshold
- Hobbyist wiring an ADC0801 A-to-D converter and wanting the exact reference Radio Shack recommended for it
- Collector of Archer and Tandy packaging who wants an unopened card rather than a loose device pulled from a parts drawer
Frequently Asked Questions
Has the blister been opened or the part removed?
No. The blister is sealed and the device is captive inside it. The close-up photos were taken through and around the clear blister, which is why the leads are visible but the card is still intact.
Why does the front say ILC8069 and the back say ICL8069?
That difference is printed on the card itself, not a typo in this listing. The front panel and the technical panel disagree, and the industry-standard spelling is ICL8069. Search either way and you are looking at this same TO-92 reference.
Has this one been tested electrically?
No. Testing it would mean cutting the card open, so it is offered exactly as it sits. The ratings above come off the printed card back. Verify against a current datasheet before designing it into anything that matters.
How old is this piece?
The device carries 8231 in the date-code position, which reads as a 1982 date code, and the Tandy Corporation address on the card is consistent with that era. We have not opened the package to confirm anything further.
Why buy this one sealed card instead of bidding on a box of old Archer packs?
Because you can see exactly what arrives. This is a single card, photographed front, back, and down to the marking on the device, and it is the only one on the shelf. A surplus lot or an auction pallet of vintage Radio Shack blisters is a gamble on which cards are still sealed, which have been opened and taped shut, and whether the part you actually wanted is in there at all. Here you are buying the one piece in the photos, priced on its own. Shipping is $8 flat rate and free once your order passes $28, and orders leave our Idaho warehouse the same or next business day.
Radio Shack once hung this on a pegboard hook, back when a 1.2V band-gap reference meant a trip downtown and a chat at the parts counter. Forty-odd years later the card is still closed, and whoever finally opens it gets to decide what the story was for.
