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值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn MF72 功率型 直热式负温度系数热敏电阻器 MF72 power direct heat type negative temperature coefficient thermistor 产品特点 Feature of Power Thermistor 1 应用范围 ○转换电源，开关电源，UPS 电源 ○镇流器及各类加热器 ○各类显像管，显示器 ○电子节能灯，其他照明灯具 Appliaction ○Switching power-supply,switch power,ups power ○Electronic energy saving lamps electronic ballast and allkinds of electric heater ○All kinds of RT,display ○Bulb and other lighting lamps 2 特点 ○体积小，功率大，抑制浪涌电流能力强 ○反应速度快 ○材料常数（B 值）大，残余电阻小 ○寿命长，可靠性高 ○系列全，应用范围宽 Characteristic ○Small size,large power,strong capacity of suppression of inrush current ○Fast resporse ○Big material constant(B value),small residual resistance ○Long life and high reliability ○Complete series,wide applications 引线形状和产品尺寸 Lead Style and Product Size 型号/尺寸（mm）/代号 Dmax Tmax Фd±0.05 F1±1 F2±1.5 直引线 L min 弯引线&直引线 L1 ±1 L2±2 NTC□D-5 7 5 0.55 5 3 15 3.5-17 7/4 NTC□D-7 9 5 0.55 5 3 15 3.5-17 7/4 NTC□D-13 15.5 6 0.75 7.5 5 15 3.5-17 7/4 NTC□D-15 17.5 6 0.75 10/7.5 5 15 17/5 7/4 NTC□D-20 22.5 7 0.95 10 / 15 / / 备注 :□为额定零功率电阻值□Rated zero‐power resistance A ll data sheet.com
值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn 电气特性 Specification 型号 Part No R25 最大稳态电流 MAX.steady State current 残余电阻 Residual Resistance 耗散系数 Dissipation factor 热时间常数 Themal time constant 工作温度 Operating temperature Ω A Ω MW/℃ S ℃ 5D-5 5 1 0.35 6 20 -40～+150 10D-5 10 0.7 0.77 6 20 60D-5 60 0.5 1.88 6 18 200D-5 200 0.1 18.70 6 18 5D-7 5 2 0.28 10 30 8D-7 8 1 0.54 9 28 10D-7 10 1 0.62 9 27 12D-7 12 1 0.82 9 27 16D-7 16 0.7 1.00 9 27 22D-7 22 0.6 1.11 9 27 33D-7 33 0.5 1.49 10 28 200D-7 200 0.2 11.65 11 28 3D-9 3 4 0.12 11 35 -40～+175 4D-9 4 3 0.19 11 35 5D-9 5 3 0.21 11 34 6D-9 6 2 0.32 11 34 8D-9 8 2 0.40 11 32 10D-9 10 2 0.46 11 32 12D-9 12 1 0.66 11 32 15D-9 15 1 0.80 11 31 20D-9 20 1 0.88 11 30 22D-9 22 1 0.95 11 30 33D-9 33 1 1.12 11 30 50D-9 50 1 1.25 11 30 80D-9 80 0.8 2.01 11 30 120D-9 120 0.8 3.02 11 30 200D-9 200 0.5 5.01 11 30 2.5D-11 2.5 5 0.10 13 43 3D-11 3 5 0.100 13 43 4D-11 4 4 0.15 13 44 5D-11 5 4 0.16 13 45 6D-11 6 3 0.24 13 45 8D-11 8 3 0.25 14 47 10D-11 10 3 0.28 14 47 12D-11 12 2 0.46 14 48 16D-11 16 2 0.47 14 50 20D-11 20 2 0.51 15 52 22D-11 22 2 0.56 15 52 A ll data sheet.com
值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn 30D-11 30 1.5 0.67 15 52 50D-11 50 1.5 1.02 15 52 60D-11 60 1.5 1.22 15 52 80D-11 80 1.2 1.66 15 52 1.3D-13 1.3 7 0.06 13 60 -40～200 2.5D-13 2.5 6 0.088 13 60 3D-13 3 6 0.092 14 60 4D-13 4 5 0.12 15 67 5D-13 5 5 0.125 15 68 6D-13 6 4 0.17 15 65 7D-13 7 4 0.188 15 65 8D-13 8 4 0.194 15 65 10D-13 10 4 0.206 15 65 12D-13 12 3 0.316 16 65 15D-13 15 3 0.335 16 65 20D-13 20 3 0.372 16 65 30D-13 30 2.5 0.517 16 65 47D-13 47 2 0.810 17 65 2.5D-15 2.5 8 0.071 18 76 3D-15 3 7 0.075 18 76 5D-15 5 6 0.112 20 76 6D-15 6 5 0.155 20 80 7D-15 7 5 0.173 20 80 8D-15 8 5 0.178 20 80 10D-15 10 5 0.180 20 75 12D-15 12 4 0.250 20 75 15D-15 15 4 0.268 21 85 20D-15 20 4 0.288 17 86 30D-15 30 3.5 0.438 18 75 47D-15 47 3 0.680 21 86 50D-15 50 3 0.720 21 86 1.3D-20 1.3 9 0.037 24 113 3D-20 3 8 0.055 24 113 5D-20 5 7 0.087 23 112 8D-20 8 6 0.142 25 115 10D-20 10 6 0.162 24 113 12D-20 12 5 0.195 24 114 16D-20 16 5 0.212 25 113 材料Materials ①、封装材料（Wrapper） ：酚醛树脂（Modified phenolic resin） ③、颜色（Coating color） ： 黑色（Black） A ll data sheet.com
值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn 存储条件Storage condition 存贮环境条件 温度Temperature -10℃～+40℃ 湿度Humidity ≤70%RH 期限Term ≤6 months (先进先出First-in/ First-out) 地点Place 1.不要暴露在下列环境条件下，否则将导致性能衰退或 参数漂移 Do not exposing the components to the following conditions, otherwise, it may result in deterioration of characteristics 2. 腐蚀性或易氧化气体Corrosive gas or deoxidizing gas 3. 易燃易爆气体Flammable and explosive gases 4. 油、水和化学溶液Oil, water and chemical liquid 5. 太阳光下Under the sunlight 请不要在下列条件下使用本元件，否则将可能导致性能衰退或产品损毁，甚至引起 火灾。 Do not apply the components under the following conditions, otherwise, it may result in deterioration of characteristics,destruction of components orin the worst case,to catching fire 超过最大的工作电流Exceeding Imax 超过许可工作温度范围Exceeding rated temperature range 散热不良，由于散热不良，本元件可能因部分过热而导致破坏 Inferior thermal dissipation，Due to badly inferior thermal dissipation, some part of the components body will become overheated and then be damaged 产品性能properties of products 机械性能MECHANICAL CHARACTERISTICS 指标项目 Item 技术要求 Specification 测试条件/方法 Test Conditions & Methods 可焊性Solder-ability 浸润部分上锡均匀，上锡面积≥ 95% The terminals shall beuniformly tinned, and its area≥95% 将引出端沾助焊剂后，浸入到温度为240-245℃、深度为15mm 的锡 槽中锡面距NTC 本体下端6mm 处，持续2-3秒。（参见IEC68-2-20 /GB2423.28 试验Ta） Dipping the NTC terminals to a depth of 15mm in a solderingbath of 240-245℃ and to the place of 6mm far from NTCbody for2-3s (See IEC68-2-20 /GB2423.28 Ta ) 耐焊接热 Resistance To Soldering Heat 无可见损伤 No visible mechanical damage.ΔR/RN ≤20% (ΔR =∣RN-RN'∣) 根据IEC68-2-20（GB2423 .28）试验Tb 进行试验。采用焊槽法，将 引出端沾助焊剂后， 浸入到温度为265±5℃、 深度为15mm 的锡槽中, 锡面距NTC 本体下端6mm处，维持10±1 秒. 在25±2℃条件下恢复4 －5h 后，复测额定零功率电阻RN'. Dipping the NTC terminals to a depth of 15mm in a soldering bath of 265±5℃ and to the place for 6mm below from NTC body for 10±1s.After recovering4-5h under 25±2℃. The rated zero A ll data sheet.com
值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn power resistance value RN' shall be measured. (See IEC68-2-20 /GB2423.28 Tb) 引出端强度 Strength of lead terminal 无损坏 No break out ΔR/RN ≤20% (ΔR =∣RN-RN'∣) 根据IEC68-2-21（GB2423 .29）试验U 进行试验。 试验 Ua：拉力10N，持续10 S； 试验 Ub：弯曲90°，拉力5N，持续10 S； 扭转 180°，拉力5N，持续10 S。 在 25±2℃条件下恢复4～5 h 后，复测额定零功率电阻RN' Fasten the body and apply a force gradually to each lead until 10N and then keep for 10sec, Hold body and apply a force to each lead until 90°slowly at 5N in the direction of lead axis and then keep for 10sec, and do this in the opposite direction repeat for other terminal. After recovering 4~5h under 25± 2℃, the rated zero power resistance value RN' shall be measured. (See IEC68-2-21/GB2423.29 Ua / Ub) 电气性能ELECTRICAL CHARACTERISTICS 指标项目Item 技术要求Specification 测试条件/方法Test Conditions & Methods 额定零功率电阻 Rated Zero-Power Resistance RN (Ω) 20±20% 环境温度 TA: 25℃±1℃ 测试电压: 1.5VDC 在恒温TA 条件下，放置1~2 小时后测得阻值RN。 Ambient temp. Range:25℃±1℃(TA). Testing voltage: 1.5VDC After placing for 1~2 hours under TA, the resistance value shall be measured 热耗散系数δ(mW/℃) Thermal Dissipation Constant 在特定的环境温度下，热耗散系数(δ)为热敏电阻电功率消耗(ΔP) 与本体温度变化量 (ΔT)的比值. The thermal dissipation constant(δ) could be calculated by the ratio of a change in power dissipation(ΔP) of the thermistor to a change in temperature(ΔT) of the thermistor at a specified ambient temperature 热时间常数τ(s) Thermal Time Constant ≤20 热时间常数(τ)为在零功率条件下，热敏电阻的温度下降到其 最初温度与最终温度之差为63.2% 时所需要的时间 The time(τ shall be measured within which the temperature change of NTC thermistor is reached at 63.2% of the ambient temperature change under zero power condition 材料常数 Material Constant B 2800±10% B=T1T2/( T2- T1) × Ln (R1/R2) R1 , R2 分别为 T1 , T2 温度下的零功率电阻 R1 , R2 is zero-power resistance at T1 , T2 最大稳态电流(A) Max.Steady State Current 无可见损伤 visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN'∣) 环境温度:25℃±2℃Ambient temp. Range. 测试电流0.5A Testing Current 可靠性试验（周期性检测项目）Reliability Test A ll data sheet.com
值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn 指标项目 Item 技术要求 Specification 测试条件/方法 Test Conditions & Methods 温度循环测试 Temp. Cycling Testing 无可见损伤 No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN'∣) 在 Ta=-40±3℃和Tb=200±3℃的环境温度中各存放30 分钟, 循环 5 次.每次高低温循环都有在25±2℃的环境中过渡5 分钟。样品进 4~5 小时后测量零功率电阻RN'. Ta:-40±3℃/ 30min→25±2℃/ 5min→ Tb:200±3℃/ 30min→25 ±2℃/ 5min Cycles: 5times After recovering 4~5 h under 25 ±2℃,the rated zero power resistance value RN' shall be measured. 电循环测试 Electrical Cycling Testing 无可见损伤 No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN'∣) 环境温度:25℃±2℃. 循环次数: 1,000 次 通/断: 1 分钟 / 5 分钟 测试电流:1.0A 样品置于室温（25±2℃）4~5 小时后,测量其零功率电阻RN'. Ambient temp. Range:25℃±2℃. Cycles: 1,000times On / Off: 1m / 5m Test Current 1.0A After recovering 4~5h under 25±2℃, the rated zero power resistance value RN' shall be measured. 持久性测试 LoadLife ( Endurance ) Testing 无可见损伤 No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN'∣) 环境温度:25℃±2℃.样品通过最大工作电流1.0A , 1,000±24 小 时后， 取出置于室温（25±2℃）4~5 小时后,测量其零功率电阻RN'. Ambient temp. Range:25℃±2℃; 6.0A/ 1,000±24h After recovering 4~5 h under 25±2℃, the ratedzero power resistance value RN' shall be measured. 耐湿性测试 Humidity Testing 无可见损伤 No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN'∣) 在温度 40±2℃,相对湿度 93±3%的环境中放置 1000±24 小时 后，取出置于室温（25±2℃）4~5 小时后, 测量其零功率电阻RN'. Ambient temp. range : 40℃±2℃ R.H.:93±3% , Energized time:1000±24 h After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN' shall be measured 电压-电流关系曲线 Graph of Voltage vs. Current A ll data sheet.com
值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn 产品特性曲线 Graph of Characteristics NTC 热敏电阻注意事项NTC thermistor to use matters needing attention 请遵循以下事项，否则可能会造成NTC 热敏电阻损坏，使用设备损伤或引起误动作等后果 Please follow the following, or may result in damage to the NTC thermistor, the use of equipment damage or cause false action, etc. ①、请勿在使用温度范围以外使用，请勿施加超出使用温度范围上下限的急剧温度变化。 Please follow the following, or may result in damage to the NTC thermistor, the use of equipment damage or cause false action, etc. ②、请在额定功率条件下使用NTC 热敏电阻。各规格最大额定功率为Φ7—1.2W Φ9—1.9W Φ11—2.3W Φ13—3W Φ15—3.5W Φ20—4W Please use the NTC thermistor under the rated power. The maximum rated power of each specification is Phi 7 Phi 9 - 1.2W - 1.9W 11 - 2.3W 13 - Phi Phi Phi Phi 20 3W 15 - 3.5W - 4W ③、在高湿高温环境下使用护套型NTC 热敏电阻时应采取仅使护套封闭部分暴露于环境（水中 湿气）中，而护套开口部分不会直 接接触到水及蒸汽的设计 In the high humidity and high temperature environment, the sheath type NTC thermal resistance should be used only to expose the sealing part of the sheath to the environment (moisture in water), and the opening part of the sheath will not be directly exposed to the design of water and steam. ④、配线时应确保导线端部（含连接器）不会深入水.蒸汽.电解质液等否则会造成接触不良。 Wiring should ensure that the end of the wire (including connectors) will not be deep water. Steam. Electrolyte solution, etc., will result in poor contact. Please do not be exposed to the corrosive gas environment (.NH3.SOx.NOx Cl2) and will be exposed to the electrolyte solution. ⑥、请勿过度拉伸及弯曲导线，请勿施加过度的振动.冲击及压力 Do not over stretch and bend the wire, please do not exert excessive vibration. A ll data sheet.com
值 得 信 赖 的 电 子 电 路 Negative Temperature Coefficient负温度系数热敏电阻 过 电 流 过 电 压 保 护 专 家 Model No：MF72 功率型热敏电阻系列 NOTE: ALL DATA AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL PRODUCTS COMPATIBLE WITH ROHS 更多详细信息请登陆 www.yint.com.cn ⑦、金属腐蚀可能会造成设备功能故障，故在选择材质时应确保金属护套型及螺钉紧固型NTC热敏电阻与安装的金属件之间不会产 生接触的电位差。 Metal corrosion may cause equipment fault, so make sure not between metal metal support and screw fastening type NTC thermistor and installation of the contact potential difference in the choice of materials. ⑧、功率型NTC 周围应避免安装发热和易燃元件，建议选用弯脚上部引线较高的产品，使NTC热敏电阻在线路板上高出其它元件， 以免发热影响其它元件正常工作。 Around the power type NTC should be avoided to install heat and flammable components, recommended products with higher bending the upper lead, the NTC thermistor on the circuit board is higher than other elements, so as not to affect the normal work of other heating element. ⑨、NTC 热敏电阻是按不同的功能用途分别进行设计的,如有疑问可与我司联络。 NTC thermistor is designed according to different functions, such as the question can contact with me. A ll data sheet.com