Engineered Alternatives. Zero Design Changes.

Life-Cycle Solutions • Obsolescence Recovery • Performance Optimization

ERSA delivers compatible, reliable and cost-effective alternatives that keep your production running without redesign.

Contact Our Engineering Team

Drop-in Compatibility

Pin-to-pin, form-fit-function replacements. No PCB redesign.

Engineering Validation

Rigorous parameter and application verification.

Stable Supply Chain

Global sourcing network and long-term availability.

Cost Optimization

Reduce BOM cost without compromising quality.

Why ERSA Exists

In industrial, medical, telecom, aerospace and other long-lifecycle applications, discontinued or hard-to-find components continue to be essential.

Redesigning a PCB or migrating to a new platform can be costly, risky and time-consuming. ERSA helps engineers keep their products running with lower risk and lower cost.

When original parts become difficult to source, we leverage our global network to help you buy the original. When that is not possible, we deliver carefully evaluated alternatives that match your real engineering needs.

1000+Engineering Teams Supported

5M+Internal Cross-Reference Data Records

48hTypical Engineering Response

Engineering-DrivenReplacement & Lifecycle Support

Real-World Engineering Success Stories

Practical solutions to real engineering challenges.

01Industrial Automation

FPGA Lifecycle Migration

Original PartXC2S200-6PQ208CSpartan-II FPGA

SolutionXC2S200-6PQ208CLead-free / RoHS

Result

No redesign required

Validation passed

Long-term supply secured

02Industrial Automation

Legacy Connector Recovery

Original PartCTP-016G-BRCA PCB 90° Connector

SolutionCompatible ReplacementSame footprint & structure

Result

Same appearance & mounting

PCB compatible

Supply restored

03Telecom / Network Equipment

DDR3 Replacement

Original PartMT41K256M16TW-107AUT:PAutomotive Grade DDR3

SolutionMT41K256M16TW-107Industrial Grade DDR3

Result

No PCB redesign

Shorter lead time

Production continuity maintained

04IoT / Low Power Devices

Low Quiescent Current LDO Optimization

Original PartAMS1117-3.3LDO Linear Regulator

SolutionAX6630A-33EALow Iq LDO, SOT-223

Result

Standby current reduced

Battery life improved

No PCB redesign

What We Help Solve

Obsolete Components End-of-Life (EOL) Hard-to-Find Parts Lifecycle Extension Pin-to-Pin Replacement No PCB Redesign Form-Fit-Function Match Drop-in Replacement BOM Optimization Cost Down Lead Time Reduction Supply Chain Security FPGA Replacement DDR3 Replacement Industrial Memory Connector Replacement Power Management LDO Low Iq Optimization eMMC / NAND Replacement Long-Term Stability