Product Overview
0.033µF 33nF Radial Ceramic Capacitor, Y5V Dielectric, 5mm Through-Hole Pitch
Condition
Unused NOS. Evaluation: Visual inspection only. Function testing not performed. Orange epoxy-dipped disc body with markings 333 and ME Z. Leads straight, untrimmed, and undamaged. Source unknown.
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Product Overview
Radial monolithic ceramic capacitor rated 0.033µF (33nF), identified by the standard capacitance code 333. The 5Z code indicates a Y5V Class III dielectric - high capacitance density in a compact through-hole package, suited for general decoupling, bypass, and filtering in non-precision circuits. Lead pitch is 5mm, compatible with standard through-hole PCB footprints and breadboards.
Key Features
- Capacitance: 0.033µF / 33nF (code 333)
- Dielectric: Y5V Class III (code 5Z)
- Package: Radial through-hole, dipped epoxy body
- Lead pitch: 5mm
- Body markings: 333, ME Z
- Leads: Straight, untrimmed, undamaged
Applications
- Bypassing supply rails on logic ICs and microcontroller boards to suppress switching noise
- General-purpose decoupling in audio, power supply, and signal-conditioning circuits
- Breadboard prototyping and through-hole PCB builds where 5mm radial pitch is standard
- Recap kits and vintage electronics restoration requiring 33nF through-hole ceramic values
- Hobbyist filter and oscillator projects where Y5V drift is within acceptable tolerance
Frequently Asked Questions
What is the Y5V dielectric, and when should I avoid it?
Y5V (EIA code 5Z) is a Class III ceramic dielectric. It offers high capacitance in a small body but has a wide temperature coefficient - capacitance can vary significantly across operating temperatures. It is well-suited for decoupling and bypass applications where exact capacitance is not critical. Avoid Y5V in precision timing, tuning, or resonant circuits where stable capacitance is required - X7R or C0G dielectrics are better choices for those applications.
What is the voltage rating?
The working voltage is not marked on the body and is not confirmed from available data. For general-purpose bypass and decoupling in low-voltage circuits, verify the rating suits your application before use.
Will these fit standard breadboards and through-hole PCBs?
Yes. The 5mm lead pitch is compatible with standard 0.1-inch (2.54mm) breadboard and through-hole PCB layouts. Leads are straight, untrimmed, and ready to insert or trim to length. Not compatible with SMD pads without lead modification.
Is the part number 333-M5Z a standard industry code?
The marking 333 is the standard EIA capacitance code for 33,000pF (33nF / 0.033µF). The 5Z portion indicates the Y5V temperature characteristic class. These are manufacturer marking conventions - 333-M5Z is the part number assigned to this listing.
A 33nF ceramic in a 5mm radial body is one of those small parts that shows up in hundreds of circuits under a dozen different names - bypass cap, noise filter, coupling cap, whatever the schematic calls it. This one is unused, leads intact, ready to go wherever it needs to go.
