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Look up pin-compatible, drop-in and cross-reference alternatives for discontinued or obsolete ICs, compare packages, pinouts and electrical limits side by side, and request samples before a production order.
Look up a part number, compare the candidate alternatives side by side, check the parameters that decide whether a swap is safe, and request samples before a production order.
Pinout, package and electrical specifications compared side by side for every candidate replacement, including the parameters that differ from the original part.
Each alternative is checked on package, pin count, voltage range, logic levels and temperature grade before it is listed, so a recommendation is a starting point rather than a guess.
Export documentation, shipment coordination and responsive service across the United States, Germany, Japan, South Korea, India and Brazil.
Send a single part number or a full bill of materials and receive matched alternatives with samples for bench validation and volume pricing for production.
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Response time, export coverage and sample support — the checks procurement teams make before they send an RFQ for an obsolete or discontinued part.
Common questions from engineers and procurement sourcing pin-compatible, drop-in or obsolete IC alternatives.
Pin-compatible means a replacement part uses the same package and the same pin assignment as the original, so it can be fitted to the existing footprint without changing the PCB layout. Electrical behaviour still has to be checked: supply voltage range, logic thresholds, timing and current ratings can differ between pin-compatible parts, and a substitute that matches on pins but not on these limits may need a design change.
Yes — that is the main use case. Send the original part number and we cross-reference it against active equivalents, list the ones that share the package and pinout, and note the parameters that differ. If no true drop-in exists, we say so and suggest the closest option together with the change it would require.
Start with the comparison table for the part: package, pin count, supply voltage, logic levels, timing and temperature grade. Then validate on the bench with samples before a production order — most substitutions pass immediately, but timing-sensitive or analogue circuits should always be tested. Include your schematic constraints in the RFQ and our team will flag the parameters that need checking.
Samples start at 10 pcs and mass production at 100 pcs. Samples ship in 5-7 days and production orders in 15-25 days, depending on the part and quantity. Tell us the target volume and schedule in the RFQ and we confirm availability, alternatives and pricing for that quantity.
Send a part number, a BOM or a technical question — the team replies within 24 business hours with matched alternatives or the parameters that need checking.
Here is what happens after you submit, so you know what to include and what you will get back.
Your details are used only to prepare your quote — never sold or shared with third parties.
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Monday - Friday: 9:00 AM - 6:00 PM
Saturday - Sunday: Closed
Timezone: Asia/Shanghai (UTC+8)
Response: Within 24 business hours
Here is what happens after you submit, so you know what to include and what you will get back.