Dongguan Baisheng Electronic Technology Co., Ltd

Technical features 1. High content ceramic ceramic rod and heat-resistant nickel alloy resistance wire are used. 2. It has excellent short-time anti pulse voltage (current) characteristics 3. Accuracy: ± 2%, ± 5%, ± 10% 4. It is coated and packaged with color ring marks 5. Working temperature range: - 55 ℃~+155 ℃ 6 Temperature coefficient: generally ± 350PPM/℃ (the test temperature is 25 ℃～+85 ℃) KNP series technical parameters Model Rated power (70 ℃) Size (mm) Resistance range D ± 1.0L ± 1.0d ± 0.05H ± 3 Normal size KNP-1/2W1/2W3.59.50.50280.1 Ω~50 Ω KNP-1W1W4.511.50.65280.1 Ω~100 Ω KNP-2W5.515.50.70280.1 Ω~500 Ω KNP-3W3W6.517.50.70280.1 Ω~1K Ω KNP-5W8.525.00.75280.1 Ω~1K Ω Miniaturized size KNP-1W-S1W3.59.50.50280.1 Ω~100 Ω KNP-2W-S2W4.511.50.65280.1 Ω~500 Ω KNP-3W-S3W5.550.70280.1 Ω. 1 Ω~1K Ω KNP-5W-S5W6.517.50.70280.1 Ω~1K Requirements for main periodic inspection items and methods of Ω power reduction curve Requirements for inspection items Method Overload for a short time without visible damage, with clear signs Δ R ≤± (2.0% R+0.05 Ω) The applied voltage shall be 1.5 times the maximum working voltage for 5 seconds. The insulation resistance is ≥ 1000M Ω, the measuring voltage is 500V, the welding heat resistance is no visible damage for 1 minute, and the marks are clear, Δ R ≤± (1.0% R+0.05 Ω) 260 ℃± 5 ℃ 10 ± 1s Solderability Bath temperature: 255 ± 5 ℃ Solder coating, immersion time 2S, pin surface S ≥ 95% temperature impact, no visible damage, clear marks, Δ R ≤± (2.0% R+0.05 Ω) - 65 ℃/+155 ℃, continuous circulation for 5 times, no visible damage, clear signs, Δ R ≤± (2.0% R+0.05 Ω) - 10 ℃～+65 ℃, RH ＞ 90%, cycle for 240h, rated power life, no visible damage, clear signs, Δ R ≤± (5.0% R+0.05 Ω) The applied voltage shall be the rated voltage or the limit voltage of the element: 1.5 hours on/0.5 hours off, 70 ℃, 1000 hours applicable standard

UPRNS/UPRND series ultra precision metal film resistor, technical characteristics of network voltage divider 1. It is assembled by selecting EE1/10 (RE55) finished high-precision metal film resistor, meeting the requirements of EE/RE series resistance quality consistency inspection items. 2. High stability/high reliability 3. Excellent consistency: the nominal resistance value deviation and temperature coefficient of the component resistance have relative consistency, especially applicable to electronic circuits with technical requirements such as precise voltage division and shunt. 4. Various specifications: users can select the quantity, specification, absolute and relative resistance value deviation, absolute and relative temperature coefficient and structure form of the component resistance within the range specified in this specification, and design the required resistance network by themselves. 5. UPRNS is single in-line type and UPRND is dual in-line type. 6. Working temperature range: - 10 ℃~+70 ℃ 7. Rated power of single component resistor: 0.1W (70 ℃), maximum working voltage of single component resistor: 200V. If the customer's requirements are beyond the scope of this specification, it is also allowed to negotiate the ordering outline structure dimension (mm) Basic structure diagram UPRNS/UPRND series technical parameters Nominal resistance deviation absolute A2 (± 0.02%) A5 (± 0.05%) B (± 0.1%) C (± 0.25%) D (± 0.5%) F (± 1.0%) Relative T (0.01%) A2 (0.02%) A5 (0.05%) B (0.1%) Temperature coefficient absolute C7 (± 5ppm/℃) C6 (± 10ppm/℃) C5 (± 15ppm/℃) C3 (± 25ppm/℃) C2 (± 50ppm/℃) relative to C10 (2ppm/℃), C9 (3ppm/℃), C7 (5ppm/℃), C6 (10ppm/℃), C5 (15ppm/℃) Note: 1. Absolute value refers to independent parameters (resistance value deviation or temperature coefficient) of all component resistors in the network; 2. The relative value refers to the maximum difference of this parameter between the component resistors in the same network; 3. The temperature range of temperature coefficient test is 25 ℃~85 ℃, and those beyond the test temperature range can be supplied through negotiation. Applicable standards

UPR/UPSC series ultra precision metal film resistor, technical characteristics of network voltage divider 1. It is assembled by selecting EE1/10 (RE55) finished high-precision metal film resistor, meeting the requirements of EE/RE series resistance quality consistency inspection items. 2. High stability/high reliability 3. Due to the selective compensation effect, it has the characteristics of low temperature coefficient and high precision, and is suitable for analog electronic circuits with precision electronic instruments. 4. Two specifications are available: UPR and UPSC series have roughly the same performance, UPSC has smaller volume, but its minimum resistance is greatly limited. 5. Operating temperature range: - 10 ℃~+70 ℃. 6 Rated power of resistance: 0.2W (70 ℃) Maximum working voltage of resistance: 250V Size (mm) UPR/UPSC series Technical parameters 70 ℃ Rated power Rated voltage (V) Maximum working voltage Nominal resistance value deviation Resistance range Temperature coefficient UPR1/5W250VA2/A5/BT/A2/A5/B10 Ω~5M100 Ω~500KC9/C7/C6/C5/C3C10/C9/C7/C6/C5/C3UPSC1/5W250VA2/A5/BT/A2/A5/B 40 Ω~5M200 Ω~500KC9/C7/C6/C5/C3C10/C9/C6/C5/C3 Nominal resistance value deviation D (± 0.5%) C (± 0.25%) B (± 0.1%) A5 (± 0.05%) A4 (± 0.04%) A3 (± 0.03%) A2 (± 0.02%) T (± 0.01%) Temperature coefficient C3 (± 25ppm/℃) C5 (± 15ppm/℃) C6 (± 10ppm/℃) C7 (± 5ppm/℃) C9 (± 3ppm/℃) C10 (± 2ppm/℃. 2) If the nominal resistance value, the deviation of the nominal resistance value and the temperature coefficient exceed the above indicators, they can be supplied through negotiation. Applicable standards

MEFK series cylindrical thick film high-voltage resistor, leadless surface mount package (SMD) thick film high-voltage resistor technical characteristics 1. Coating package, color ring logo, applicable to electronic circuits with high precision requirements, MEF cylindrical surface mount (SMD). 2. Small size, low cost, no lead cylindrical shape, and the maximum working voltage does not exceed 7000V (DC). 3. Voltage coefficient: max. - 2ppm/V4. Nominal resistance value deviation: generally ± 5.0% (J). For negotiated orders, ± 2.0% (G) and ± 1.0% (F) can be achieved. 5. Temperature coefficient: generally ± 200ppm/℃ (without identification) (measuring temperature range - 15 ℃~+105 ℃). For negotiated orders, ± 100ppm/℃ (C1) and ± 50ppm/℃ (C2) can be achieved. 6 Working temperature range: - 55 ℃~+155 ℃ Size (mm) Model MEFK0207MEFK0208 Rated power (70 ℃) (W) 0.50.75 Rated working voltage (V) Maximum working voltage (V) 35007000 Size (mm) L ± 0.35.68.5D ± 0.32.153C ± 0.11.41.9 Resistance range 100K~100M exceeds the above resistance range, which can be supplied through negotiation. Main periodic inspection items and methods of power reduction curve Inspection type Items and methods Long term inspection life 70 ℃, rated power, 1000hMEFK0207: Δ R ≤± 3% R Other models: Δ R ≤± 1.5% R Humidity resistance - 10 ℃～+65 ℃, RH ＞ 90%, cycle for 240h, rated power Short term test Dielectric withstand voltage 1000VDC, duration for 1min, no mechanical damage, flashover, insulation breakdown shock GJB360A Method 213, no mechanical damage, flashover, insulation breakdown Δ R ≤± 0.5% R Method of high-frequency vibration GJB360A 204 Resistance to welding heat 260 ℃± 5 ℃ 10 ± 1s Short time overload 2.5 times the rated power, but the corresponding rated voltage shall not exceed 1.5 times the maximum working voltage, lasting for 5s Solderability Bath temperature: 255 ± 5 ℃ Welding filler metal coating, immersion time 2S Surface S ≥ 95% Applicable standard