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| Datasheet File OCR Text: |
| Carbon Ceramic Resistors CCR Series Welwyn Components * Replacement for hot moulded carbon composition Non-inductive Surface mount option UL94-V0 approved coating * High pulse voltage and energy capability * * * Electrical Data CCR 1 Power rating at 25C Resistance range Maximum pulse voltage TCR Resistance Tolerance Standard Values Ambient temperature range Thermal Impedance C C/W watts ohms volts ppm/C % 1 220R - 22K See pulse graphs <1K0 : -700200 1K0 : -1000300 E12 -40 to 80 100 10 or 20 * * Tolerance applies to date of manufacture. As in all carbon composition parts value drift in storage is possible. This is typically 3% in one year and 5% in 2 years. Physical Data Dimensions (mm) Type CCR 1 L max 15.5 D max 5.5 D norm 0.8 F min 30 d D L f Construction CCR series resistors are produced from a carbon ceramic composite material, the composition of which is varied to produce the required resistance value. The ceramic rods are fitted with end caps to which are welded the termination wires. Finally, a specially formulated high voltage epoxy coating is applied and the resistors are marked. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits. Marking CCR series resistors are colour coded. Resistors with 20% tolerance have three bands indicating value, and resistors with 5% and 10% tolerance have four bands indicating value and tolerance in accordance with IEC62. General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn's own data and is considered accurate at time of going to print. A subsidiary of TT electronics plc Issue C * 03.06 (c) Welwyn Components Limited * Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com Carbon Composition Resistors CCR Series Welwyn Components Performance Data Typical Change Load at rated power: 1000hrs @ 25C Dry heat: 1000hrs @ 125C Long Pulse: 100mS at 60 x Rated Power Short term overload: 2s at 6.25 x Rated Power Derating from rated power @ 25C Climatic sequence Vibration Temperature rapid change Resistance to solder heat Isolation voltage R% R% R% R% R% R% R% R% V 5% 5% 2% 2% Zero at 125C 8% 2% 2% 2% 500V Pulse Performance The graphs below show the value changes resulting from applying multiple pulses of increasing peak voltage. The pulse shape was 1.2/50S as defined in IEC 6100-4-5 / ANSI C62.41. The highest voltage plotted on each graph represents the maximum peak voltage for that resistance value. CCR1-240R 120% Resistance Value (Normalised) 100% 80% 60% 40% 20% 0% 0 5 10 15 20 1.2/50 PeakVoltage /kV MEAN MIN MAX CCR1-1K0 120% Resistance Value (Normalised) 100% 80% 60% 40% 20% 0% 0 5 10 15 20 1.2/50 PeakVoltage /kV MEAN MIN MAX CCR1-2K2 120% Resistance Value (Normalised) 100% 80% 60% 40% 20% 0% 0 5 10 15 20 1.2/50 PeakVoltage /kV MEAN MIN MAX Resistance Value (Normalised) 120% 100% 80% 60% 40% 20% 0% 0 5 CCR1-15K MEAN MIN MAX 10 15 20 1.2/50 PeakVoltage /kV (c) Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com 92 Issue C * 03.06 Carbon Composition Resistors CCR Series Welwyn Components Packaging - Axial Version CCR axial products are supplied tape packed ready for loading onto automatic sequencing and insertion machines. Component leads will not protrude beyond the outside edge of the tapes. Standard taping method and critical dimensions are shown below. Standard pack size: 1000 parts. 10 f1 6 67 f2 6 Body location f1 - f2 <1.4 mm - Surface Mount Option CCR series resistor can be supplied with formed leads suitable for pick and place surface mounting as shown below. For this option add suffix Z to the type, e.g. CCR1Z. 15.50 MAX 5.50 MAX 6.95 4.20 + 0.20 - 1.44 MIN 18.70 + 0.20 - 0.2 B B 0.3 A + 0.60 6.50 - 0.50 A 0.80 0.80 (c) Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com Issue C * 03.06 Carbon Composition Resistors CCR Series Welwyn Components Packaging - Surface Mount Version Products are supplied on standard carrier tape and 330mm diameter reels suitable for automatic pick and place machines. Carrier tape dimensions and standard reels quantities are given below. Ao P Ko 13mm Bo W 330mm 32mm Dimensions (mm) Type CCR 1Z Ao 7.3 Bo 19.2 Ko 7.7 W 32 P 12 T 0.4 Quantity Per Reel 750 Ordering Procedure Specify type reference etc as shown in this example of CCR1 6.8K ohms 10%, taped and reeled. Type Lead form Blank Z Axial Surface mount CCR1 - 6K8 K I Value (use IEC62 code) Tolerance (use IEC 62 code) K M 10% 20% (c) Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com Issue C * 03.06 |
Price & Availability of CCR1
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