EE1/8B3B3500

EE SERIES MOLD TYPE HIGH PRECISION METAL FILM RESISTORS Feature · Advanced thin film technology · Excellent overall stability: Class 0.05% · Very low TCR: up to ±5ppm/K · Very low noise and voltage coefficient • Compliant to RoHS directive 2011/65/EU • Compliant to REACH (EC No. 1907/2006)) (last updated: 27/06/2018) Description Production is strictly controlled and follows an extensive set of instructions established in production procedure for reproducibility. A homogeneous film of metal alloy is deposited on the surface of CeramTec’s ceramic cores (96% AL2O3) and conditioned to achieve the desired stability and the temperature coefficients. A professional laser is pressed on the metalized rods to not only achieve the target value but also prefect electronics performance by smoothly cutting a helical groove in the resistance layer on the ceramic rods without damaging the ceramics. The resistance layers are covered by a protective coating and hard Bakelite designed for electrical, mechanical and climatic protection. The resistors are tested in accordance with MIL-R-10509F which refers to MILSTD-202 or IEC60115. The established reliability in accordance with CECC 40401-803 Version E is available upon request. www.thunder-resistor.com sales@thunder-resistor.com page 1 of 6 1. PART NUMBER: Part number is identified by the type series name, power rating, tolerance, temperature coefficient, packing type and resistance value. Example： EE 1/8 B 5 B Series Power Resistance Temperature Name rating Tolerance Coefficient Packing 10R0 Resistance Style (1) Style: EE SERIES (2) Power rating at 70℃: 1/10=0.25W; 1/8=0.50W; 1/4=0.75W; 1/2=1W (3) Tolerance: W=±0.05%; B=±0.10%; C=0.25%; D=0.50%; F=1.0% (4) T.C.R.: 7=5ppm/℃; 6=10ppm/℃; 5=15ppm/℃; 3=25ppm/℃; (5) Packaging Type: B=BULK; T=Taping (6) Resistance Value: 10R0=10Ω, 1201=1k2, 3302=33k, 4733=473k, 1004=1M 2. MARKING Digital marking with part number and batch number www.thunder-resistor.com sales@thunder-resistor.com page 2 of 6 3. ELECTRICAL CHARACTERISTICS Unless otherwise specified, all values are tested at the following condition: Temperature: 21℃ to 25℃; Relative humidity: * Rated Continuous Working Voltage (RCWV)= www.thunder-resistor.com 45% to 60% Power Rating  Resistance Value sales@thunder-resistor.com page 3 of 6 4. DERATING CURVE The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heat flow support of the printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded. These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a functional lifetime. www.thunder-resistor.com sales@thunder-resistor.com page 4 of 6 5. ENVIRONMENTAL CHARACTERISTICS (1) Insulation Resistance IEC 60115-1, 4.6: in V-block for 60 seconds, the test resistance should be high than 10,000 M Ohm. (2) Dielectric Withstanding Voltage IEC 60115-1 4.7: or flashover. Place resistors in V-block for 60 Seconds, no breakdown (3) Temperature Coefficient Test IEC 60115-1, 4.8: Test of resistors at room temperature and 60°C or 100°C on request above room temperature. Then measure the resistance. The Temperature Coefficient is calculated by the following equation and its value should be within the range requested. Re sistor Temperature Coefficient  R R0 t t0 R  R0 1   10 6 R0 t  t0 = Resistance value under the testing temperature = Resistance value at the room temperature = the 2nd testing temperature = Room temperature (4) Short Time Over Load Test IEC60115-1 4.13: At 10 times rated voltage or 2 times the maximum working voltage whichever is lower for 5 seconds, the resistor should be free from defects. The change of the resistance value should be within± (0.02%+0.05Ω) as compared with the value before the test. (5) Solderability IEC 60115-1, 4.17: 235±5°C for 3±0.5 Seconds, there are at least 95% solder coverage on the termination. www.thunder-resistor.com sales@thunder-resistor.com page 5 of 6 (6) Resistance to soldering heat: IEC 60115-1, 4.18: 260±3°C for 10±1 Seconds, immersed to a point 3±0.5mm from the body. The change of the resistance value should be within ±(0.05%+0.05 Ω) as compared with the value before the test. (7) Climatic sequence IEC 60115-1, 4.19: -55°C to Room Temp. to +155°C to Room Temp. (5 cycles). The change of the resistance value shall be within ± (0.05%+0.05Ω) as compared with the value before the load. After the test the resistors shall be free from the electrical or mechanical damage. (8) Damp Heat Steady State IEC 60115-1, 4.24: 40±2°C, 90-95% RH for 56 days, loaded with 0.1 times RCWV or the maximum working voltage whichever is lower. The change of the resistance value should be within ± (0.05%+0.05Ω) as compared with the value before the load. (9) Load Life Test IEC 60115-1, 4.25: 70±2°C at RCWV or the maximum working voltage whichever is lower for 1,000+48/-0 Hr. (1.5Hr. on, 0.5Hr. off). The resistors shall be arranged not much effected mutually by the temperature of others and the excessive ventilation shall not be performed. The change of the resistance value should be within ± (0.05%+0.05Ω) as compared with the value before the load. (10) Resistance to Solvent IEC 60115-1, 4.30: IPA for 5±0.5min. with ultrasonic. No deterioration occurred. www.thunder-resistor.com sales@thunder-resistor.com page 6 of 6 Disclaimer All products, product specifications and data are subject to change without notice to improve reliability, function or design or otherwise. Thunder Precision Resistors makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product to the maximum extent permitted by applicable law. www.thunder-resistor.com sales@thunder-resistor.com page 7 of 6