CCR222KKB

Ceramic Composition Resistors Type CCR Series Type CCR Series Characteristics Electrical Power at 70°C Ambient: Derating: Resistance Range: Resistance Tolerance: Temp. Coefficient (ppm/°C): Max. Working Voltage: Max. Overload Voltage: Dielectric Withstand Voltage: Impulse Withstanding Voltage*: The CCR series of resistors is 0.5 Watt. 1.0 Watt. 2.0 Watt. Derating to 0 at 200°C Derating to 0 at 200°C Derating to 0 at 200°C 10R – 100K 3R3 – 390K 3R3 – 390K 10% E12 series 10% E12 series 10% E12 series 100R: -1300 to ±300 200V 300V 400V 400V 600V 800V 500 volts 500 volts 700 volts 10 Kv 14 Kv 20 Kv NB *: Please refer to Resistance to Pulse Circuit constructed utilising solid ceramic composition, which is the traditional medium for absorbing high energy Characteristics Environmental pulses, in cases of high inrush current. These resistors Operating Temperature Range: Temperature Cycles (-40°C to 85°C, 5 cycles): Load Life (1000 hours at 70°C): Resistance to Solder Heat (360°C for 3 seconds): Short Time Overload (2x rated voltage for 5 seconds): Humidity (40°C, 95%RH 240 hrs.): have evolved over many years to have excellent pulse withstand capabilities, whilst remaining very stable. These improved characteristics have been achieved by prudent -40°C to +200°C ΔR/R ± 2% ΔR/R ± 5% ΔR/R ± 3% ΔR/R ± 2% ΔR/R ± 5% selection of materials of optimum physical properties and by advances in the manufacturing process. The CCR series are ideal for circuitry Resistance to Pulse Circuit 1 secON SW 1 secOFF 10kΩ associated performance in high voltage power supplies, R-C snubber circuits, and Rx C=1,000pF DC (Max. pulse voltage) inrush limiters. Key Features I Range of Resistance Tolerances I Solid Ceramic Composition I Low Cost, High Performance I Two Sizes Available I Wide Range of Resistance Values I Available on Tape Resistance to Pulse Graphs CCR1 0.80 CCR2 0.80 DC 14KV 1 sec. on 1 sec. off 0.60 10 Kohms 0.40 0.20 0 1 Kohm 100 ohms 0 100 1,000 Cycles 10,000 DC 20KV 1 sec. on 1 sec. off 0.60 ΔR/r (%) Designed for Pulse Withstand ΔR/r (%) I 10 Kohms 0.40 100 ohms 0 20,000 1 Kohm 0.20 0 100 1,000 Cycles 10,000 20,000 Dimensions L d D Literature No. 1773193 Issued: 12-08 Dimensions are shown for reference purposes only. BULK L D d (nom) l CCR1/2 9.0 ± 1.0 3.5 ± 0.5 0.7 30 ± 3 CCR1 16.5 ± 1.0 5.5 ± 1.0 0.8 38 ± 3 CCR2 19.0 ± 1.0 7.0 ± 1.0 0.8 38 ± 3 Dimensions are in millimetres unless otherwise specified. Specifications subject to change. tycoelectronics.com passives.tycoelectronics.com Ceramic Composition Resistors Type CCR Series Application Notes Limitations of Potential Pulsing on Fixed Ceramic Composition Resistors Ceramic Composition resistors are susceptible to failure under some high voltage conditions. In circuitry where there is a possibility of transient potentials, considerable high voltage may be applied to a resistor for a short period of time. These notes are intended to aid the determining of “safe” potential level for the CCR Series when used in pulse application. For Pulse Power limitations please refer to the graph (fig.1). Power below that specified on the graph will, generally not cause any significant degradation to the resistor, but please note that the resistance value may vary slightly due to repeated pulsing over a long period of time. The circuit designer should also be aware of the fact that the pulse voltage is limited even under the conditions on which the graph is based. The maximum peak pulse voltage for these resistors is the lesser of (A) or (B) below. (A) (B) V peak = √Po x R CCR1 Where: “Po” is the pulse limit power taken from the graph. “R” is the resistance value in ohms. CCR1/2 1200V CCR2 800V 1600V The Peak Power is defined as the maximum power dissipated at any point in time regardless of the waveform shape. The Pulse Waveform, if other than square wave, must first be converted to an approximate square wave as shown below. Wp - Peak Power. Wo - Rated Power. t - Time to attenuate down to the rated power. Wp - Peak Power. Wo - Rated Power. t - Time to attenuate down to the rated power. Application Notes The following design rules determine if derating of the Pulse Limit Power (Po) obtained from the graph is required for repetitive pulse applications. 1. If T off < 4µ seconds, or T off < 5m seconds and (T off/t) < 1, then the peak power is treated as continuous power and, therefore, Pm = the resistor’s rated wattage. 2. If T off is > 4µ sec, but is < 100µ sec, and (T off/t) < 700, then Pm = Po x 0.01 x (T off/t)0.7. 3. If T off is > 100µ sec, and (T off/t) < 200, then Pm = Po x 0.01 x (T off/t)0.85. 4. If T off is > 4µ sec, but is < 100µ sec, and (T off/t) < 700, or T off is >100µ sec, and (T off/t) > 200, then Pm = Po as obtained from the pulse power graph. Where: Pm: Po: T off: t: Literature No. 1773193 Issued: 12-08 Derated Pulse Power (W) Pulse Power from graph below (W) Off time between pulses (sec) Pulse width (sec) Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. tycoelectronics.com passives.tycoelectronics.com Ceramic Composition Resistors Type CCR Series Application Notes (continued) Notes • Graph pulse power (Po) is for ambient temperatures of 70°C or less. For ambient operating temperatures greater than 70°C, pulse power (Po) or (Pm) must be further derated by 1.18% per °C above 70°C in accordance with the power derating schedule of the resistor. • If derated pulse power (Pm) is calculated to be less than the resistor’s rated continuous power, the resistor’s rated wattage should be used. Pulse Limiting Power (Po) One Pulse 1000000 CCR 2 CCR 1 100000 CCR 1/2 Pulse Power 10000 1000 100 10 1 0.0001 0.001 0.01 0.1 1 10 Pulse T ime (s) How to Order CCR 1 10R K B Common Part Power Rating Resistance Value Tolerance Packaging _ - 0.5 Watt 10 ohm (10 ohms) 10R K - 10% CCR 1 – 1.0 Watt 2 – 2.0 Watt B - Bulk 1K ohms (1000 ohms) 1K0 T - Taped 100K ohms (100000 ohms) 100K Literature No. 1773193 Issued: 12-08 Dimensions are shown for reference purposes only. Dimensions are in millimetres unless otherwise specified. Specifications subject to change. tycoelectronics.com passives.tycoelectronics.com