PI3DPX1203BZLEX

PI3DPX1203BZLEX is a PhotoMOS relay (optically isolated MOSFET switch) in the PI3D family. It uses an LED input to drive a pair of MOSFETs on the output side, providing galvanic isolation between control and load while switching DC/AC loads within its ratings. No mechanical contacts means fast switching, long life, and low leakage.
Key points:
- Purpose: isolate control circuitry from high-voltage/load side and switch loads without metal contacts
- Architecture: input LED drives output MOSFET pair
- Common uses: signal isolation, level shifting, EMI/ground-loop relief, safe switching
What to verify in the datasheet:
- Load voltage and current ratings
- Output on-resistance and leakage
- Input forward current (IF) and CTR (optical coupling) performance
- Isolation voltage (Viso) and ambient/operating temperature range
- Package form (Form A/B), pinout, fault/timing specs
Note: exact ratings and suffix meanings (BZLEX) vary by manufacturer. For precise introduction and specs, consult the PI3DPX1203BZLEX datasheet from the specific supplier.

I don’t have live web access to verify PI3DPX1203BZLEX’s package. Please provide the datasheet or allow a lookup. Typically PI3DPX12xx devices are offered in 8-pin USON/TDFN-style packages, but confirm with the manufacturer’s datasheet for this exact suffix.

The PI3DPX1203BZLEX is a Pericom-branded part now produced by Diodes Incorporated (Diodes Inc.). Diodes Inc. is a global semiconductor company that designs and supplies discrete, analog, logic and mixed‑signal integrated circuits—especially interface, clocking and connectivity ICs (Pericom was a Pericom Semiconductor product line acquired by Diodes).

- Industrial automation and control systems
- Power electronics, motor drives, and gate-drive interfaces
- Automotive electronics with galvanic isolation
- Smart meters, energy inverters, and renewable energy systems
- Medical instrumentation and safety-critical sensing
- Data communication and consumer electronics needing EMI/isolated interfaces