Product Overview

The Dafu Manufacturing Ceramic Disc Capacitor is designed for use in power circuits and output circuits of various electronic devices. These capacitors are suitable for applications including air conditioners, color TVs, monitors, photocopiers, switching power supplies, energy-saving lamps, telephones, audio equipment, and tape recorders. They are characterized by their reliable performance and adherence to strict environmental standards.

Product Attributes

• Brand: Dafu Manufacturing
• Origin: Dongguan Dafu Electronics Co., Ltd. / Dongguan Dafu Electronics Technology Co., Ltd.
• Material: Ceramic
• Certifications: RoHS compliant (EU directive)

Technical Specifications

Product Details

Product Code Structure:

Example: H101K050BN48230L

• (1) Encapsulation Material: F (Phenolic), H (Light Blue Epoxy), S (Dark Blue Epoxy)
• (2) Nominal Capacitance: First two digits are significant figures, the last digit is the multiplier (e.g., 0=1, 1=10, 2=100, 3=1000, 9=0.1).
• (3) Capacitance Tolerance: C (0.25pF), D (0.5pF), J (5%), K (10%), M (20%), Z (+80% to -20%)
• (4) Capacitor Diameter Code: e.g., 050 (6.0mm), 070 (8.0mm)
• (5) Temperature Characteristics: C (COH), U (U2H), S (SL), T (T2H), R (Y5R), B (Y5P), E (Y5U), F (Y5V)
• (6) Rated Working Voltage: F (50V), H (100V), L (500V), N (1000V), P (2000V), R (3000V)
• (7) Lead Wire Diameter: e.g., 48 (0.480.05mm), 55 (0.550.05mm)
• (8) Lead Wire Length & Taping Style: e.g., L (11mm max.), 200 (20mm min.)
• (9) Lead Wire Type: W, J, L, K, P, H
• (10) Lead Spacing (F): e.g., 25 (2.50.5mm), 50 (5.00.5mm)
• (11) Internal Management Code

Standard Climate Conditions:

• Ambient Temperature: 15~35
• Relative Humidity: 45~75%
• Atmospheric Pressure: 86~106 kPa

Operating and Storage Temperature Range:

• Storage Temperature Range: -10 to +40

Performance and Test Methods:

5.1 Electrical Performance Indicators and Test Methods:

• Capacitance and Tolerance: Tested at 25, 1 MHz and 1 Vrms (Class I), 1 kHz and 1 Vrms (Class II), 1 kHz and 0.1 Vrms (Class III). Refer to specification table.
• Quality Factor or Dissipation Factor: Test conditions as above. Requirements vary by capacitance value and type (e.g., Y5P, YR, Y5U, Z5U, Y5V, Z5V).
• Insulation Resistance: Tested under rated voltage or 500VDC (for rated voltage above) for 605 seconds. Class I & II: 10000Mmin; Class III: 250Mmin.
• Withstand Voltage: Applied voltage between leads: 300% of rated voltage (50V~500V), 150% of rated voltage (1000V~2000V). Insulation voltage: 150% of rated voltage. No breakdown or arcing.
• Temperature Characteristics: Measured capacitance at specified temperatures. Capacity change (C) calculated by formula. Pre-treatment varies by capacitor type (e.g., Class I, Y5P, Y5U, Y5V).

5.2 Mechanical Performance and Test Methods:

• Lead Tensile Strength: 10N axial tensile force applied for 101 seconds. No damage, breakage, or loosening of leads.
• Bending Test: Lead bent to 90 and returned. No damage to leads.

5.3 Reliability and Test Methods:

• Solderability: Solder temperature 2355, immersion time 2.50.5 seconds. 95% coverage of immersed lead surface.
• Vibration Test: Frequency range 10~55Hz, amplitude 1.5mm, duration 6 hours. Tested in three perpendicular directions. Appearance: No visible damage. Capacitance change within specified tolerance.
• Withstand Soldering Heat: Solder temperature 2605, immersion time 100.5 sec. Appearance: No visible damage. Capacitance change within specified tolerance. Withstand voltage test as per 5.1.4.
• Resistance to Solvents: Immersion in Isopropyl alcohol for 305 seconds. Appearance: No visible damage.
• Temperature Cycling: 5 cycles of -25, room temp, 85 (or 125 for Y5R), room temp. Post-treatment as per 5.3.3. Appearance: No visible damage. Capacitance change, Q/DF, Insulation Resistance, Withstand Voltage within specified limits.
• Damp Heat Test: Stored at 402, 90~95% RH for 500+24 hours. Post-treatment as per 5.3.3. Appearance: No visible damage. Capacitance change, Q/DF, Insulation Resistance, Withstand Voltage within specified limits.
• Endurance Test: Operated at 853 with applied voltage for 1000+48 hours. Post-treatment as per 5.3.3. Appearance, Capacitance change, Q/DF, Insulation Resistance, Withstand Voltage within specified limits.

6.0 Environmental Requirements:

• Compliant with EU RoHS Directive:
• Cadmium (Cd): 100PPM
• Lead (Pb): 1000PPM
• Mercury (Hg): 1000PPM
• Hexavalent Chromium (Cr6+): 1000PPM
• PBB/PBDE: 1000PPM

Ceramic Disc Capacitor Series Raw Material List: