商鋪名稱：深圳市華鑫歐電子有限公司
聯系人：吳偉（先生）
聯系手機：
固定電話：
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聯系地址：深圳市寶安區石巖鎮洲石路石頭山工業區2號廠房3樓
郵編：518108
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功率型 厚膜 無感 電阻器 Power type Thick film Non inductive Resistor
l 安裝在散熱器，于 25℃時，額定功率達 50 瓦；在不使用散熱片，25℃常溫下，額定功率是 3 瓦
Installed on the radiator, with a rated power of 50 watts at 25 ℃ ; The rated power is 3 watts at room temperature of 25 ℃ without using heat sinks
l TO-220 模壓塑封包裝
TO-220 Molded plastic packaging
l 只用一顆 M3（3mm）螺絲，便可以安裝于散熱器上
Only one M3 (3mm) screw is needed to install it on the radiator
l 保護性高的模壓塑膠封外盒，且易于安裝
Highly protective molded plastic outer box, and easy to install
l 高絕緣度 High insulation degree
l 無感設計 Sensorless design
用于電源供應器的入口端、低能量脈沖負載、射頻功率放大器之終端電阻、電壓整流器、緩沖電路器、UPS Used for the inlet end of power supplies, low-energy pulse loads, terminal resistors of RF power amplifiers, voltage rectifiers, buffer circuits, UPS
©2025 V1.0
功率型 厚膜 無感 電阻器 Power type Thick film Non inductive Resistor
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氧化鋁基板 |
Alumina Substrate |
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電阻層 |
Resistor Layer |
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引腳 |
Lead |
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模壓封裝 |
Molding |
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測試項目 |
基本要求 |
測試方法 |
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Test project |
Basic Requirements |
Test Method |
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短時間過負荷 |
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2 倍額定功率，但不超過最大耐壓的 1.5 倍，連續 5 秒鐘 |
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Short term overload |
△R±0.3% |
2 times the rated power, but not exceeding 1.5 times the |
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maximum withstand voltage, for 5 consecutive seconds |
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負載壽命 |
△R±1.0% |
額定功率下 2000 小時 |
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Load Life |
2000 hours at rated power |
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40±2℃、90～95%濕度下，在最大工作電壓下維持 1000 小 |
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耐濕測試 |
△R±0.5% |
時（1.5 小時“開”，0.5 小時“關”） |
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Humidity test |
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Maintain 1000 hours at maximum operating voltage at 40 ±2 ℃ |
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and 90-95% humidity (1.5 hours "on", 0.5 hours "off") |
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焊接附著性 |
90%以上覆蓋新錫 |
245±5℃持續 3 秒 |
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solderability |
Over 90% coverage of new tin |
245 ± 5 ℃ for 3 seconds |
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熱沖擊測試 |
△R±0.3% |
-65℃～﹢150℃，100 次循環 |
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Thermal Shock |
65 ℃~+150 ℃, 100 cycles |
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引線強度 |
△R±0.2% |
（拉力測試）2.4 牛頓 |
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Lead strength |
(Tensile test) 2.4 Newtons |
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高頻震動 |
△R±0.2% |
20 公克震動 |
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High-frequency vibration |
20 grams of vibration |
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絕緣強度 |
△R±0.15% |
1800V AC，60 秒 |
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Dielectric Strength |
1800V AC，60 seconds |
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溫度循環 |
ΔR±0.3% |
-65°C~+150°C，1000 次循環 |
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Temperature Cycling |
-65°C~+150°C, 1000 cycles |
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型號 |
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阻值范圍 Resistance Range |
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溫度系數 |
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Type |
±0.5% |
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±1% |
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±5% |
TCR（PPM/℃） |
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≥0.1Ω～1Ω |
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±300 |
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≥1Ω～5Ω |
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±100 |
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±200 |
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RTP50 |
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≥5Ω～10Ω |
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±300 |
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±50 |
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≥10Ω～100KΩ |
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±100 |
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±200 |
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©2025 V1.0
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功率型 厚膜 無感 電阻器 Power type Thick film |
Non inductive Resistor |
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最大工作電壓 Maximum operating voltage |
450VDC |
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耐電壓 Voltage endurance |
1800VAC |
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絕緣電阻 Insulation resistance |
10GΩ min |
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工作溫度范圍 Working temperature range |
- 55 ° C～+150 ° C |
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產品類型 |
功率 |
阻值 |
精度 |
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Product type |
Power |
Resistance |
Accuracy |
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RTP |
50 Watts |
3R9=3.9Ω |
D：±0.5% |
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10R=10Ω |
F：±1% |
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20K=20KΩ |
J：±5% |
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