Check the listing for details. (6) LM311 Voltage Comparator by ST. Condition: New – Open box. Listed at 4.95 USD. LM311 Voltage Comparators 0911 Most purchases qualify for a ** Combined Shipping Discount ** Fast eMail Fast Shipping Guaranteed Good-on-Arrival (6) LM311 Voltage Comparators Price is for (6) pcs The LM311 has 4x the voltage gain with only ¼ the input current (0.1 µA) of the LM319. Feature: Single Supply operation. Wide Differential Input Voltage Range ± 30 VDC VERY LOW Input Current 150 nA Max Use a single 5 VDC supply (Perfect for battery powered circuits) - or - Use split supplies up to ± 15 VDC Typical DC voltage gain: 200V / 1mV = 200,000 Manufactured by STMicroelectronics Datasheet: https://linearparts.com/documents/LM311-st.pdf Shipped in anti-static tubes. 311_6 ************************************* ham radio etronic e-tronic hamtronic qba BootsParts USA boots PAYMENT and SHIPPING ** We offer a Combined Shipping Discount for most purchases (excluding books) if paid with ONE SINGLE PAYMENT with eBay's SHOPPING CART ** Condition of Goods Unless otherwise noted above: NOS (New Old Stock) or better, clean, unused 30 day Non-DOA, Good-on-Arrival Guarantee Untested, but NO JUNK or suspect parts PCB parts are thru-hole, NO SMD/SMT Small parts may be bulk packed Manufacturers and Date Codes may vary Attention International bidders only: Sorry, we ship to US ZIP Codes ONLY. We DO NOT ship Internationally. We ONLY ship to Registered US PayPal addresses. We DO NOT accept INTERNATIONAL PayPal payments. IMPORTANT: The parts we sell are categorized as new because they are unused, but many of our parts are those rare, hard-to-find, discontinued, manufacturing surplus and / or old stock commonly known in the parts business as 'NOS' (New Old Stock). Some of our stock pictures show date codes which may vary from the actual product shipped. Parts from a larger OEM package may be repacked for smaller lot size orders or for more practical handling and shipping. We strive to give full and accurate descriptions to earn your 5-Star Feedback. Any known deficiencies are listed in the detailed description. Datasheets are provided when available. Some datasheets may be close but not a perfect match because of part revisions or because they may be from a different manufacturer. If you have any questions concerning our products please email us before purchasing. Your complete satisfaction is important to us before and after the sale. Thank you.