Product Overview
Murata 332M-MX Ceramic Disc Capacitor - 3300pF 3.3nF ±20% High Voltage Radial Through-Hole
Condition
Unused NOS. Sourced from an electronics distributor consolidating inventory. Photos show the specific unit you will receive: blue epoxy-coated radial disc body marked CSA, UL, MX, 332M, and date code 3 96. Body approximately 13mm wide, leads straight and unkinked, no chips or cracks. Covered by our no-hassle guarantee.
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Product Overview
Murata 332M-MX radial through-hole ceramic disc capacitor. Capacitance is 3300pF (3.3nF) with ±20% tolerance. Body marked CSA and UL, confirming safety certifications visible on the unit. Blue epoxy-coated disc construction typical of Murata high-voltage ceramic series. Date code 3 96 visible on body. Intended for filtering, noise suppression, and voltage stabilization in circuits operating at elevated voltages.
Key Features
- Capacitance: 3300pF (3.3nF)
- Tolerance: ±20% (M designation)
- Mounting: Radial through-hole disc
- Body: Blue epoxy-coated ceramic disc, approximately 13mm wide
- Markings: CSA and UL safety certifications confirmed on body
- Leads: Straight, unkinked radial leads
- Condition: Unused NOS, body clean with no chips or cracks
Applications
- Repair technician replacing a failed coupling or filtering cap on a vintage power supply board - desolders the old disc, drops in the 332M-MX, confirms capacitance with a meter before powering up
- Industrial maintenance tech swapping a failed cap on a motor control board to get a line back in service, working from the original part markings to match the replacement
- OEM designer integrating a compact high-voltage filtering stage into a prototype, selecting this ceramic disc for its small footprint versus a larger film capacitor alternative
- Hobbyist building or restoring a high-voltage circuit - flyback driver, Tesla coil auxiliary stage, or tube amplifier PSU - who needs a certified, stable disc cap rated for the job
- PCB repair shop keeping verified NOS ceramic disc caps on hand for fast turnaround on industrial and consumer equipment service calls
Frequently Asked Questions
What is the voltage rating of this capacitor?
The exact voltage rating for the -MX suffix variant is not confirmed in available data. The body markings visible in photos confirm CSA and UL safety certifications, which are associated with safety-rated capacitors typically used in AC line or high-voltage DC applications. Murata ceramic disc capacitors in the 332M series are commonly found in ratings ranging from 250VAC to 2000V DC. Buyers should determine the required voltage rating for their specific application before ordering.
Is this a Y-class safety capacitor?
The CSA and UL markings on the body are consistent with safety-certified capacitors. Whether this specific unit carries a Y1 or Y2 class rating is not confirmed without a full datasheet for the 332M-MX suffix. The safety markings are visible and confirmed from photos.
What lead spacing does this capacitor have?
Lead spacing is not confirmed for this specific suffix variant. The body measures approximately 13mm wide as visible in photos. Buyers with tight PCB footprint requirements should measure against their layout before ordering.
Is the ±20% tolerance suitable for my circuit?
The M tolerance (±20%) is standard for ceramic disc capacitors used in filtering, noise suppression, and coupling applications. It is not well-suited for precision timing circuits where tight capacitance stability is required. For power supply filtering, spike suppression, and general decoupling, ±20% is widely accepted.
A blue disc with a CSA stamp and a 1996 date code - this one has been waiting in a parts bin for nearly thirty years for the right circuit. Now it is yours to put to work.
