Product Overview
358 Marked Dual Op Amp, SOIC-8 Surface Mount
Condition
Unused, New Old Stock. 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
The top face of this body carries two lines, 358 over 823A, with a pin-1 dot at the lower left corner and no maker logo or prefix letters visible in these photos. It is an 8-pin small-outline package, shown against a millimeter scale. A 358 designates the dual op amp architecture rather than any one manufacturer's part; 19 pieces are on the shelf, sold each.
Key Features
- Two operational amplifiers in one 8-pin small-outline body
- Top marking read from these photos: 358 on the first line, 823A on the second, pin-1 dot present
- Standard 358 pinout: 1 OUT1, 2 IN1-, 3 IN1+, 4 V-/GND, 5 IN2+, 6 IN2-, 7 OUT2, 8 V+, per TI's published LM358 data describing the architecture
- The 358 architecture is a compensated dual amplifier whose common-mode range includes ground, suited to single-supply work, per TI's published LM358 data
- Manufacturer, temperature grade and die are not established: no maker logo or prefix letters appear in these photos, and 823A matches no published code
- Because no datasheet governs an unmarked part, no offset voltage, supply current, bandwidth or supply maximum is claimed for this unit
With no maker's mark established, verify these against your own bench measurement or your chosen supplier's published 358 series data before designing in.
Applications
- Single-supply amplification and buffering stages
- Active filter blocks on small PCB modules
- Repair of existing SMD assemblies that already use a 358
- Breadboard work through an SOIC-8 to through-hole adapter
Frequently Asked Questions
How many should I order?
Order the count your board needs; the shelf holds 19 of these and they are sold each, so a repair job and its spares can come off one order. Shipping is $8 flat rate and free on orders over $28, so small parts like this ship smartest as part of a larger order.
What exactly is printed on these, and who made them?
The top face reads 358 over 823A with a pin-1 dot, and that is all of it: no manufacturer logo, no prefix letters and no grade suffix are visible in these photos, so we list the maker as unknown rather than guess at a die. Treat the 358 as the architecture and the 823A as an internal code.
The die inside kept its name to itself; the pinout did not.
