Product Overview
The CT81 series ceramic disc capacitors are designed for high-voltage applications, primarily used in the power supply and horizontal output circuits of color TVs, computer monitors, copiers, and energy-saving lamps. These capacitors feature a ceramic dielectric, silver electrodes, and are encapsulated in epoxy resin. They are manufactured by Dongguan Chengxi Electronics Co., Ltd.
Product Attributes
- Brand: Chengxi (Implied by manufacturer name)
- Origin: Dongguan, China
- Dielectric Material: Ceramic (SrCO3, BaCO3, TiO2, Bi2O3, CaCO3, Nb2O5, MgO)
- Electrode Material: Silver
- Encapsulation Material: Epoxy Resin
- Lead Wire Material: Tin-plated lead wire
- Solder Material: Tin Alloy
Technical Specifications
| Item | Specification | Test Method and Conditions |
|---|---|---|
| Product Name | Round Ceramic Disc Capacitor | |
| Model | CT81 151K 1KV (Y5V) | |
| Product Code | CT81Y5V1KV151K5035BC | |
| Customer Part Number | CX-CT81-251105-01 | |
| Appearance & Structure (Style CT81-1KV-Y5V-151K) | Dmax: 5.20.5 mm, Tmax: 2.50.5 mm, F: 50.5 mm, d: 0.650.5 mm | Measured by caliper |
| Manufacturer's Code | ||
| Temperature Characteristic | ||
| Rated Voltage | ||
| Nominal Capacitance | ||
| Tolerance of Capacitance | ||
| Model Naming Method (CT81-15KV-Y5T-101K) | CT81: Class II High-Voltage, 15KV: Rated Voltage, Y5T: Temperature Characteristic (+22%/-33%), 101K: Nominal Capacitance (100pF) | |
| Storage Temperature Range | -40 ~ +85 | |
| Operating Temperature Range | -25 ~ +85 | |
| Appearance & Dimension | No visible defects, within specified tolerance | Visual inspection, caliper measurement |
| Marking | Clearly visible | Visual inspection |
| Capacitance | Within specified tolerance | Temp: 202, Vol: 1.00.2Vrms, Freq: 10.1KHz |
| Dissipation Factor | 0.2% max | Same condition as capacitance |
| Insulation Resistance | > 10,000 M | Measured with 50050V.DC for 1 minute |
| Dielectric Strength (Between Lead Wires) | No failure | Apply 150% of rated voltage for 1 min (Charge/discharge current 50mA) |
| Dielectric Strength (Body Insulation) | No failure | Apply 150% of rated voltage for 1 min (Charge/discharge current 50mA) |
| Temperature Characteristic (Y5V) | Capacitance change: +22% to -33% | Pre-treatment: 852 for 1 hr, then 242 hrs at room condition. Measured at steps: 202, -252, 202, 852, 202. |
| Strength of Lead Wires (Pull) | Lead wire not cut, capacitor not damaged | Apply 10N load for 101 sec in lead wire direction |
| Strength of Lead Wires (Bending) | Apply 5N load, bend 90, return, bend 90 opposite direction, 2 times | |
| Soldering Effect | No marked defect | Immerse leads in 2605 solder for 5.00.5 sec (1.5-2.0mm from body). Pre-treatment: 852 for 1 hr, then 242 hrs at room condition. Post-treatment: 242 hrs at room condition. |
| Capacitance Change (Soldering Effect) | 10% max | |
| Temperature Cycling | No marked defect, Capacitance Change: 10% max | 5 cycles of -253 (303min) 202 (3min max) 853 (303min) 202 (3min max). Pre-treatment and Post-treatment as above. |
| Vibration Resistance | No marked defect, Capacitance Change: 10% max | 10Hz500Hz, 1.5mm amplitude, 6 hours (2 hrs each X, Y, Z axis). Pre-treatment and Post-treatment as above. |
| Solder Ability of Lead Wires | Tinned area > 90% | Dip in flux, then into 2455 solder for 20.5 sec (2.0-2.5mm from body) |
| Collision Resistance | No marked defect, Capacitance Change: 10% max | 390m/s, 6ms pulse, 4000 times. Pre-treatment and Post-treatment as above. |
| Humidity Cycling | No marked defect, Capacitance Change: 10% max, DF: 0.2% max, IR: > 2500 M | 402, 953% RH for 8 hrs, then room condition for 16 hrs, 5 cycles. Post-treatment: 1-2 hrs at room condition. |
| Humidity (Steady State) | No marked defect, Capacitance Change: 10% max, DF: 0.2% max, IR: > 2500 M | 402, 953% RH for 50012 hrs. Pre-treatment and Post-treatment as above. |
| Life Test | No marked defect, Capacitance Change: 10% max, DF: 0.2% max, IR: > 4000 M | Apply 150% rated voltage at 852 for 1000 hrs (Charge/discharge current 50mA). Pre-treatment and Post-treatment as above. |
| Pressure Cooking | No marked defect, IR: > 1500 M | 1212, 2 atm for 4 hrs. Pre-treatment and Post-treatment as above. Dielectric Strength per Item 8. |
| Packing Quantity (per bag) | 500 pcs | Bag Type: No. 2 (190190mm) |
| Packing Marking | Manufacturer's Marking, Code, Model, Product Lots, Productive Date, Quantity | Example provided |
| Outer Packing Boxes | A1: 360200140mm, A2: 198177138mm | Internal boxes |
| Over-wrap Boxes | B1: 460380220mm, B2: 425380170mm | External boxes |
| Packing Quantity (Outer) | Integral multiple of 100 or 500 | |
| Taping Pitch (P) | 12.71.0 mm | |
| Guide Pitch (Po) | 12.71.0 mm | |
| Lead Spacing (F) | 5.00.8 mm, 7.50.8 mm, 9.50.8 mm | |
| Diameter of Feed Hole (Do) | 4.00.3 mm | |
| Diameter of Lead (d) | 0.55+0.06/-0.05 mm | |
| Total Thickness of Tape (t) | 0.70.2 mm | |
| Width of Base Tape (W) | 18.00.5 mm | |
| Feed Hole Vertical Position (W1) | 9.0 +0.75/-0.05 mm | |
| Hold-down Tape Position (W2) | 1.51.5 mm | |
| Taping Height for Straight (Ho) | 16.00.5 mm | |
| Coating Extention (e) | 3.0 mm below | |
| Crimp Height (H) | 20 +1.5/-1.0 mm |
2512031620_DGCX-CT81Y5V1KV151K5035BC_C53070542.pdf
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