1245（4512）贴片保险丝
1. 产品特性及应用范围 / Description, Features and Applications
本产品适用于各类电子设备电路初、次级电路板的过流保护, 广泛应用于固态照明、电池充电、
消费电子、电子镇流器、LED AC/DC 电源供应、网络通信、医疗仪器及工业控制器等领域。
Descriptions：
REOMAX R1245T series slow-blow square Surface Mount fuses are ceramic tube/end cap constructions,
RoHS compliant, Halogen Free and lead(Pb) exempts of the requirements of RoHS Directive(2002/95/EC), with U.S.
(UL/CSA) safety agency approvals. Provide board level primary and secondary circuit protection in a wide variety
of applications. With excellent inrush current withstanding capability, excellent reliability for thermal and mechanic
shock, also have a high reliability and stable solder ability, end caps are available in gold/silver/nickel plated.
Features：
• Time-Lag ( slow-blow ) • Small size(12.4mm*4.5mm)
• Wide range of current rating available • Wide operating temperature
range
• Low temperature de-rating • RoHS compliant
• Tape and Reel for automatic placement • Conflict free metals
Applications：
• LED lighting • Notebook PC • Battery devices • LCD/PDP devices
• LCD backlight inverter • Portable Devices • Power supply • Networking devices
• PC server • Cooling fan system • Storage system • Telecom system
• Wireless base station • White goods • Game console • Office equipment
• Digital camera • Industrial equipment • Medical equipment • Automotive devices
2. 安规认证标准及编号 / Standards and Agency Approvals
2.1 执行标准：遵循UL 248-14。
Standards：In accordance with UL 248-14.
2.2 认证范围 Certification：
安规标准 认证范围 证书编号
Agency Ampere Range Agency File Number
15A ~ 100A E502159 (JDYX2)
15A ~ 100A E502159 (JDYX8)
2.3 目录编号 Catalogue No.，● 已认证Approved / ○ 认证中Pending
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目录编号 Catalog No. |
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额定电流 Ampere Rating |
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额定电压 Voltage Rating |
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分断能力 Breaking Capacity |
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冷阻值 Nominal Cold Resistance (Ohms) |
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熔化热能 I2TMelting Integral(A2.S) |
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安规认证 Agency Approvals |
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250V/125VAC/DC 72V63V/32VDC |
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200A@250VAC 500A:@125VAC 1000A@72V63V/32VDC |
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R1245T.100 100A 0.000710 8088 ● ●
Ø *: These catalog no. cold resistance and I2t value are pending due to fuse elements shall be customized;
Ø DC Cold Resistance are measured at <10% of rated current in ambient temperature of 25℃;
Ø Typical Pre-arching I2t are calculated at 10*In Current or 8ms;
Ø Min Interrupting Rating: 1.35*In.
3. 产品标示 / Product Marking
保险丝上需有下列标示 / The fuses shall have the following markings
示例Example:
100A 制造厂商标识/REOMAX Trade Mark:
额定电流/Rated Current (A): A 或or mA
注:对于标示的大小和位置没有规定 / Note: Size and position of the markings shall not be provided.
5. 材料明细 / Material Details
编 号 零 件 名 称 材 质
NO. Part Name Material
○1 端帽End caps 黄铜镀金Au Plated Brass Cap
○2 主体Body 陶瓷管Non-Transparent Square Ceramic Tube
○3 熔丝Fuse element 合金Cu-Ag Alloy wire
6. 产品特性 / Product Characteristics
编号 项目 内容 参考标准
NO. Item Content Reference standards
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1 |
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产品标识 Product Marking |
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Brand, Ampere Rating REOMAX marking standards |
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2 |
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工作温度 Operating Temperature |
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-55°C to 125°C |
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–55ºC to 125ºC with proper derating |
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3 |
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可焊性 Solderability |
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T=240°C±5°C , t=3sec±0.5sec, Coverage≥95% |
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MIL-STD-202, Method 208 |
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4 |
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耐焊接热 Resistance to Soldering Heat |
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10 sec at 260°C |
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MIL-STD-202, Method 210, Test condition B |
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5 |
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绝缘阻抗 Insulation Resistance (after Opening) |
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10,000 ohms minimum |
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MIL-STD-202, Method 302, Test Condition A |
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6 |
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热冲击 Thermal Shock |
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5 cycles, -65°C / +125°C, 15 minutes at each extreme |
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MIL-STD-202, Method 107, Test Condition B |
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7 |
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机械冲击 Mechanical Shock |
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100G’s peak for 6 milliseconds, 3cycles |
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MIL-STD-202, Method 213, Test I |
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8 |
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振动试验 Vibration |
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0.03”amplitude, 10-55 Hz in 1 min. 2hrs each XYZ=6hrs |
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MIL-STD-202, Method 201 |
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9 |
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耐湿性 Moisture Resistance |
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10 cycles MIL-STD-202, Method 106 |
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10 |
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盐雾试验 Salt Spray |
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5% salt solution, 48hrs |
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MIL-STD-202, Method 101, Test Condition B |
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7. 电气特性 / Electrical Characteristics
7.1 实验条件：Test Condition
所有测试环境温度为25±5℃。
All electrical test is to be conducted with the ambient air at a temperature of 25±5℃.
7.2 分断能力 Interrupting Rating：
保险丝承受分断能力：200A @250VAC500A:@125VAC 1000A@72V63V/32VDC
Breaking Capacity: 200A @250VAC500A:@125VAC 1000A@72V63V/32VDC
7.3 熔断时限 / Operating Characteristics
额定电流的% 熔断时间
% of Ampere Rating(In) Blowing Time
100% * In 大于4 小时(4 hours Min)
200% * In 小于60 秒 (60 sec Max)
