CBB28 Metallized Polypropylene Film Capacitor 1250V 10PCS | 1nF–8.2µF 10/15mm Pitch | High-Voltage AC/DC

CBB28 Metallized Polypropylene Film Capacitor — 1250V, 1nF–8.2µF (10PCS)

High-voltage metallized polypropylene film capacitors rated at 1250V for demanding AC and DC applications. The CBB28 series features self-healing metallized film construction, flame-retardant epoxy encapsulation (UL94V-0), and low high-frequency losses — making them the preferred choice for resistor-capacitor (R-C) step-down power supplies, lamp ballasts, monitoring equipment, and high-voltage pulse circuits.

Specifications

Series	CBB28 (CBB22 1250V)
Dielectric	Metallized Polypropylene Film
Rated Voltage	1250V
Capacitance Range	1nF – 8.2µF (value as selected)
Lead Spacing	10mm / 15mm
Package Type	Through-hole, radial lead
Encapsulation	Flame-retardant epoxy powder (UL94V-0)
Color	Red
Structure	Fixed Capacitor, self-healing
Quantity	10PCS per pack
Origin	Mainland China

Available Capacitance Values

Code	Capacitance	Code	Capacitance
102J	1nF	562J	5.6nF
152J	1.5nF	682J	6.8nF
222J	2.2nF	822J	8.2nF
332J	3.3nF	103J	10nF
392J	3.9nF	223J	22nF
472J	4.7nF	474J	470nF
123J	12nF	825J	8.2µF

Key Features

• ✅ 1250V rated — handles mains-derived high-voltage circuits safely
• ✅ Self-healing metallized film — minor dielectric breakdowns self-repair, extending capacitor life
• ✅ Low high-frequency loss — low ESR and ESL for clean performance in switching circuits
• ✅ Low temperature rise — efficient operation even under high AC ripple current
• ✅ High impact strength — robust construction for industrial environments
• ✅ UL94V-0 flame-retardant encapsulation — meets fire safety standards for mains-connected equipment
• ✅ Good AC withstand voltage — suitable for high-frequency AC and pulse applications

Common Applications

• Resistor-capacitor (R-C) step-down power supplies
• Fluorescent lamp and LED driver ballasts
• Monitoring and security equipment power supplies
• High-voltage pulse and snubber circuits
• Motor run and start capacitor applications
• EMI filter circuits on mains power lines
• SMPS snubber and clamp circuits

Frequently Asked Questions

Q: What is the difference between CBB22 and CBB28?
A: CBB22 and CBB28 both use metallized polypropylene film. CBB28 is specifically rated for higher voltage applications (1250V) with flame-retardant epoxy encapsulation, making it suitable for mains-connected circuits where CBB22 standard ratings may be insufficient.

Q: Can I use these in an R-C step-down power supply?
A: Yes. R-C step-down (capacitive dropper) power supplies are one of the primary applications for 1250V film capacitors. The high voltage rating provides adequate safety margin above the 230V AC mains peak voltage (~325V peak).

Package Contents

• 10× CBB28 Metallized Polypropylene Film Capacitors (value as selected)

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.