Product Overview
0.33µF 63V WIMA MKS 4 Metallized Polyester Film - Unused NOS
This film capacitor suits coupling, decoupling, and timing roles in general electronics. With a 0.33µF / 330nF value and 63V rating, it balances size and stability for through-hole builds on PCBs. For clean installs, keep lead lengths short and avoid prolonged heating during soldering to preserve dielectric characteristics and body integrity.
Product Condition
Unused, New Old Stock (NOS)
Product Overview
The MKS 4 series is a metallized polyester (PET) film capacitor in a solvent-resistant, flame-retardant box package. This non-polarized component provides reliable DC blocking, AC coupling, and general filtering. Its self-healing metallized film design supports dependable service in audio, instrumentation, industrial control, and other mixed-signal circuits.
Key Features
- Capacitance: 0.33µF (330nF)
- Voltage rating: 63 VDC
- Dielectric: metallized polyester (PET), self-healing
- Series: WIMA MKS 4
- Construction: box type with flame-retardant, solvent-resistant plastic case
- Lead style: radial, through-hole
- Lead spacing options: 7.5 mm or 10 mm (series-dependent)
- Tolerance options: ±10% or ±20% depending on suffix
- Markings include value, voltage, and series code (e.g., “BO”)
- Body color: red, consistent with the manufacturer’s film line
Applications
- Audio coupling/decoupling in preamps and interfaces
- Timing networks and analog filters
- General DC circuits for blocking and bypass
- Instrumentation and sensor interface stages
- Industrial control and automation PCBs
- Restoration or maintenance of legacy equipment
- Educational labs and prototyping
Frequently Asked Questions
Is this capacitor polarized?
No. It is non-polarized and can be installed in either orientation.
How does metallized polyester compare to other film types?
It offers compact size and dependable performance for general audio and DC uses; polypropylene is often chosen when lower dielectric absorption or tighter tolerance is required.
What tolerance codes are available?
The series accommodates tolerance options such as ±10% or ±20%, indicated by the part’s suffix.
Which lead spacing should I plan for on a PCB?
Design for 7.5 mm or 10 mm spacing, depending on the specific variant within the series.
Drop this capacitor into an audio coupling path on a PCB, using its flame-retardant case and non-polarized metallized polyester build; solder on a 7.5 mm or 10 mm grid.
