Temperature measurement Epoxy-encapsulated sensors SPECIFICATION NTC Thermistor 503F Scope This specification deals with shape,dimensions,charac

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1 传感器 SENSORS MEASUREMENT CONTROL SHANGHAI BENMU INDUSTRY CO., LTD. 上海本牧实业有限公司 BENMU

2 Temperature measurement Epoxy-encapsulated sensors SPECIFICATION NTC Thermistor 503F Scope This specification deals with shape,dimensions,characteristics,inspection standard etc. 2 Specifications 2.1 Item: Thermistor,No.: MEB-503F Characteristics Item Test Condition Min. Mid. Max. Unit Resistance at ± KΩ B value B25/ K Insulation resistance DC100v 100 / / MΩ Thermal time constant In still air / / 3 S Thermal dissipation constant In still air 0.7 / / mw/ Maximum power rating 25 / / 50 mw/ Operating temperature range / -30 / Material of parts Head: Epoxy resin encapsulated Leads : enameled wire Dimensions-mm D ± ~ 1.6 L 1 ±0.1 2 ~ 4 L ±1 25 ~ 120 L 2 ±1 3 d± ~ 0.3 TBD TBD TBD TBD TBD 3 Reliability Item 1 High temp. storage Method of Examination 1000Hours under Low temp. storage * R25/R25<± 1% 1000Hours under Temperature & humidity Specification 1000hours under 60 95%RH times cycling test: mins - Room * R25/R25<± 1% Thermal shock Temperature(RT) 5 mins mins-RT 5mins 5 With 1.5mm amplitude from 50Hz to 500Hz The thermistor Vibration No visible damage is vibrated at X and Y with 6 mins respectively 6 Pulling With 2.0N pulling along the leads, holding for 60s 7 Fall down * R25/R25<±1% Falling down from 1M onto wooden board for 10 times

3 Temperature measurement Epoxy-encapsulated sensors NTC Thermistor 503F3950 RESISTANCE-TEMPERATURE CHARACTERISTICS R25 : Kohms ± 1.0% B25/50 : 3950ºK T( ) R (KΩ) T( ) R (KΩ) T( ) R (KΩ) T( ) R (KΩ) T( ) R (KΩ)

4 Temperature measurement Epoxy-encapsulated sensors NTC Thermistor 503F3950 RESISTANCE-TEMPERATURE CHARACTERISTICS R25 : Kohms ± 1.0% B25/50 : 3950ºK T( ) R (KΩ) T( ) R (KΩ) T( ) R (KΩ) T( ) R (KΩ) T( ) R (KΩ)

5 NTC THERMISTOR 负温度系数热敏电阻热敏电阻 (Thermistor) 是对热敏感的半导体电阻 (Thermal Sensitive Resistor), 其阻值随温度变化而发生非常显著变化的半导体一般而言分为两大类一类是电阻值随温度升高而升高的 PTC( Postive Temperature Coefficient) 热敏电阻另一类是电阻值随温度升高而降低的 NTC (Negative Temperature Coefficient) 热敏电阻本目录说明仅限于 NTC 热敏电阻 A thermistor is "a thermally sensitive resistor" that is a semiconductor whose resistance varies significantly with temperature. In general, there are two types thermal senstive resistor. One is PTC ( Postive Temperature Coefficient); the resistance increases as temperature increases. The other is NTC (Negative Temperature Coefficient); the resistance decreases as temperature increases. The following description is applicable only to NTC thermistors. 热敏电阻是应用于信息系统与控制系统的敏感元件, 主要用于对温度的测量控制保护及用作加热器热敏电阻是一种由锰铜硅钴镍铁锌等多种金属氧化物为原料烧结而成的陶瓷半导体感热晶体使用温度在-50~+1000 之间, 涵盖了日常温度控制所需的温度范围热敏电阻体积小稳定性好且响应性高, 在国防工控通信汽车航天等领域以及日常家电中得到了广泛的应用 NTC thermistor is an sensitive elements widely used in information system and control system, which is mainly used for temperature measurements, control, protection and heating. Thermistors are thermally sensitive elements of sintered fine ceramic semiconductor composed of several transition metal oxides, primarily Mn, Co and Ni. Their operating temperature range is from -50 C to C that covers the whole range necessary for ordinary temperature control. They are also small, stable and have great sensitivity. Thanks to these features, they are used in large quantities as temperature sensors and temperature compensation elements in consumer electronic appliances and industrial equipment. 4 个重要的参数热敏电阻的性能主要以电阻值 B 值热耗散常数 δ 热时间常数 τ 这 4 个参数来表示有时也用电阻温度系数 α 作为辅助常数 Basically, characteristics of a thermistors is represented by four constants: resistance R, B constant B, thermal dissipation constant δ and thermal time constant 电阻值 Resistance B 值 B constant R B 热敏电阻 NTC THERMISTOR δ 耗散常数 Thermal dissipation constant 热时间常数 Thermal time constant 电阻值 R (kω) 热敏电阻的电阻值 R 和绝对温度 T 之间, 有以下近似关系 Between resistance R and absolute temperature T, there is the following approximate relationship. 1 1 R1 = R2 exp B( - ) (1) T1 T2 根据公式可以求证任意温度 T 时的热敏电阻 R Thermistor resistance R at any temperature T can be calculated from equation (1) R1: Resistance (Ω) at absolute temperature T1 (K) 绝对温度 T1 (K) 时的电阻值 R2: Resistance (Ω) at absolute temperature T2 (K) 绝对温度 T2 (K) 时的电阻值 B : B constant B 值

6 B constant B (K) B 值是电阻在 2 个温度之间的电阻值变化量的常数, 由以下计算公式得出 B is a constant that expresses a change rate in resistance between two temperatures, which is derived from the equation (1). B = lnr1 - lnr (logR1 - logr2) = (2) T1 T2 T1 T2 B 值一般是 B25 /50 =2000~6000K,B 值越大每 1 的电阻变化率也变大 In general, B constant value ranges B25 C/50 C = 2,000-6,000K. The higher the B value is, the greater the change rate in resistance per 1 C becomes. R1: Resistance (Ω) at absolute temperature T1 (K) 绝对温度 T1 (K) 时的电阻值 R2: Resistance (Ω) at absolute temperature T2 (K) 绝对温度 T2 (K) 时的电阻值 B : B constant B 值耗散常数 δ (mw/ ) 耗散常数 δ 是指给热敏电阻通电加热时, 热敏电阻晶体表面和引线产生自热的热量大小程度耗散常数 δ 可以用公式 (3) 计算出附加在热敏电阻上的消耗与相应的温度上升值 Thermal dissipation constant δ is a constant that expresses a degree of radiation from surface and lead wires of a thermistor element, when electric current is applied to heat it up. Thermal dissipation constant δ can be determined by the equation (3) as a ratio between a power consumption applied to a thermistor and a degree of temperature increased by the power. δ = W I²R = T - Ta T - Ta.. (3) Thermal dissipation constant (mw/ C) 耗散常数 (mw/ ) W: Power consumption in thermistor (mw) 热敏电阻的消耗功率 (mw) T : Temperature at heat equilibrium after rising ( C) 升温达到热平衡时的温度值 ( ) Ta : External ambient temperature ( C) 周围温度 ( ) I : Current flowing in a themistor at temperature T (ma) 温度 T 时, 通过热敏电阻的电流值 (ma) R : Resistance of a thermistor at temperature T (kω) 温度 T 时, 热敏电阻的电阻值 (kω) 进行精密温度测量或者控制时, 要观察热敏电阻的耗散常数 δ 的值, 控制电流, 避免通过热敏电阻的电流过大电阻本身加热而引起的温度误差此产品介绍中所述耗散常数是指在静止空气中的单个热敏电阻晶体的值请注意在组装加工成温度传感器之后其 δ 的値会有变化 In order to measure temperature accurately and to control precicely, it is important to look closely at the value of of a thermistor and minimize electric current so that measurement error caused by heating is eliminated. Thermal dissipation constant in this catalog shows a value when a discrete element is placed in still air. Please note that values for assembled thermal sensors will be different. 热时间常数 τ (sec.) 热时间常数 τ 是在热敏电阻的周围温度或通过热敏电阻的电流在发生激烈变化的情况下, 其电阻值发生急变的时间程度的常数热时间常数是热敏电阻晶体的温度从初始值到最终值的温度差 (1-1/e), 即到达 63.2% 时所需要的时间 Thermal time constant T is a constant which indicates how fast resistance of a thermistor follows to a change in surrounding temperature or electric current injected. The constant is expressed by a time to reach to (1-1/e) or 63.2% of a difference between initial and final achieving temperatures of a thermistor element.

7 Electric Appliances 家电民用 Civilian Applications OA Auto 汽车 ( 温度 ) 传感器 Agri. 农业 (TEMPERATURE) SENSOR Indu. 工业 Fish. 渔业产业 INDUSTRY Com. 商业 Med. 医疗研究 R&D 热敏电阻 NTC THERMISTOR ph-ch 理化 Temp. compensation 温度补偿 other 其他热敏电阻应用说明 Thermistor Applications 烹调器 Cooker 电炉烤箱电饭锅电磁炉面包机咖啡机煤气炉 Stove, Toaster, Cooker,Heating iron, Oven, Pan, Coffee maker 空调冷暖器空调取暖器暖床电热地毯电热毯 HVAC Air conditioning, Heaters, Electric carpets, Electric blankets 家用电器热水器锅炉冰箱干燥机浴缸太阳能系统垃圾处理系统 E-Appliances Boilers, Refrigerator, Washing machine, Room dryer, Solar systems 其他电器电子体温计电熨斗电吹风染发器熨衣板 Others Thermometers, Iron, Hair dryer, Hair coloring device, Ironing board 复印机传真机打印机钟表照相机 Copier, Fax machine, Printer, watches, Camera 进气 \ 排气温度冷却水温度发动机温度变速箱温度汽车空调 Intake/Exhaust, Cooling water, Engine, Transmission, air conditioning 温室催芽机制茶牲畜饲养烘培设备土壤温度粮仓温度 Greenhouse,germination,Dryer, baking, granary, Soil,fertilizer 计量器油温等液体测定保温器保温器恒温器自动化 Instruments,Thermostat, oil, warmer, Oil bath, Automatic 海水温度测定声纳养殖 Temperature control, water temperature, sonar, seaweed farming 冷冻冷藏成列柜售货机融雪设备冷藏车净水器 Refrigerated display racks/ Trucks, water purifier 皮肤温度直肠温度保育器输液加热器保温设备 Skin temperature, rectal, incubators, infusion heater 海流温度气象观测人造卫星地热温度实验室设备 Temperature measuring, atmosphere observation 通信设备 Telecoms 手机电话雷达发送设备 Cellphone, Laser transmitter 电子元器件 E-component 水晶振荡器液晶显示 Crystal oscillator, Liquid crystal display 电子设备 E-Equipment 影像设备音响设备转换电源手提电脑振荡器 Video equipment, Audio equipment, Switching regulator, PC,Oscillator 防止过大电流时间迟延电话 AGC 高频电力测量 In-rush current limit, Time delay, Telephone AGC, power measurement

8 型号与分类 Part No. 热敏电阻主要型号和特性型号 / Part # D (mm) Temperature Range 示意图 /Sturcture Image MG-B ± 0.1 MG-B ± C ~ +300 C MGB MG-B ± 0.2 MG-B ± C ~ +350 C MG-B ± 0.2 MGD MG-D ± 1.0 MG-D ± C ~ +250 C ME-B ± 0.1 MEB ME-B ± 0.1 ME-B ± C ~ +110 C ME-B ± 0.1 Part No. Description M G B F 3950U F M G/E B/D 08 / C R ± % B (25/50 C) B ± % 热敏电阻 G: Glass B: Bead 08: 0.8mm 503=50*10³Ω F ± 1% 3000K F ± 1% Thermistor 玻璃封装单端式样 12:1.2mm 104=10*10⁴Ω G ± 2% ~ G ± 2% E: Epoxy D: Diode 18:1.8mm 502=50*10²Ω H ± 3% 5000K H ± 3% 环氧封装二极管式 20:2.0mm 103=10*10³Ω J ± 5% J ± 5% MGB18-103F3950UF M G E B D NTC Thermistor / 负温度系数热敏电阻 Glass sealed thermistor/ 玻璃封装热敏电阻 Epoxy resin coated thermistor/ 环氧树脂封装热敏电阻 Bead structure thermistor/ 单端珠状热敏电阻 Diode structure thermistor/ 二极管式热敏电阻 Outer diameter of the thermistor head/ 热敏电阻头部直径 1.8mm 25 C/ 25 C 电阻值 103=10KΩ=10*10³Ω 503=50KΩ=50*10³Ω 153=15KΩ=15*10³Ω 以此类推 F 3950U F Resistance 25 C ± 1% / 25 C 时电阻值精度为 ± 1%. 以此类推 Beta value at (25/50 C) / B 值 (25/50 C) Tolerance of Beta value/ B 值精度 ± 1%

选型参考表 SELECTION MANUAL 测温型负温度系数热敏电阻 NTC Thermistor MGB05 MGB08 MGB12 MGB18 MGD18 MEB08 MEB12 MEB14 使用温度 OP Temp. -50 C ~ +300 C -50 C ~ +350 C -50 C ~ +250 C -30 C ~ +110 C 25 C 阻值 R @ 25 C 2.

9 选型参考表 SELECTION MANUAL 测温型负温度系数热敏电阻 NTC Thermistor MGB05 MGB08 MGB12 MGB18 MGD18 MEB08 MEB12 MEB14 使用温度 OP Temp. -50 C ~ +300 C -50 C ~ +350 C -50 C ~ +250 C -30 C ~ +110 C 25 C 阻值 25 C 2.0KΩ ~ 200KΩ 2.0KΩ ~ 500KΩ 2.0KΩ ~ 1000KΩ 2.0KΩ ~ 200KΩ B(25/50 C) 3000K ~ 4500K 3000K ~ 4500K 3000K ~ 4500K 3000K ~ 4500K 耗散常数 δ 0.25mW/ C 0.4mW/ C 0.75mW/ C 1.1mW/ C 2.3mW/ C 0.4mW/ C 0.75mW/ C In Still Air mW/ C mW/ C mW/ C mW/ C mW/ C mW/ C mW/ C 热时间常数 τ 1 s 2 s 5 s 10 s 12 s 2 s 3 s In Still Air s s s 8-13 s s s 2-5 s 绝缘电阻 DC50V DC500V DC500V DC100V Insulation R 10MΩ 50MΩ 100MΩ 100MΩ ± 1 % ± 2 % ± 3% ± 5 % ±0.16% ± 1 % ± 2 % ± 3% 头部尺寸 mm 0.55 ± 0.08 Head Dia x 1.1 ± ± 0.08 x 1.5 ± ± 0.2 x 2.2 ± ± 0.2 x 3.2 ± ± 0.2 x 3.8 ± ± 0.1 x 1.6 ± ± 0.1 x 2.2 ± ± 0.1 x 3.0 ± 0.1 引线长度 mm 32mm 70mm 20 ~ 120mm 28 * 2 Leads Customized 订制 Customized 订制

10 Temperature measurement Glass-encapsulated sensors 测温型负温度系数热敏电阻 MG PART # 25 C B(25/50 C) PART # 25 C B(25/50 C) MGB08-104F KΩ F/G/H/J 3950 F MGB12-502F3920 5KΩ F/G/H/J 3920 F MGB12-103F KΩ F/G/H/J 3380 F MGB12-103F KΩ F/G/H/J 3470 F MGB12-103F KΩ F/G/H/J 3950 F MGB12-503F KΩ F/G/H/J 3950 F MGB12-503F KΩ F/G/H/J 4000 F MGB12-104F KΩ F/G/H/J 3950 F MGB12-104F KΩ F/G/H/J 4000 F PART # 25 C B(25/50 C) PART # 25 C B(25/50 C) MGB18-502F3950 5KΩ F/G/H/J 3950 F MGD18-302F3950 3KΩ F/G/H/J 3950 F MGB18-103F KΩ F/G/H/J 3350 F MGD18-472F KΩ F/G/H/J 3470 F MGB18-103F KΩ F/G/H/J 3380 F MGD18-502F3280 5KΩ F/G/H/J 3280 F MGB18-103F KΩ F/G/H/J 3950 F MGD18-502F3470 5KΩ F/G/H/J 3470 F MGB18-503F KΩ F/G/H/J 3950 F MGD18-103F KΩ F/G/H/J 3380 F MGB18-503F KΩ F/G/H/J 4000 F MGD18-103F KΩ F/G/H/J 3470 F MGB18-104F KΩ F/G/H/J 3950 F MGD18-103F KΩ F/G/H/J 3600 F MGB18-104F KΩ F/G/H/J 4000 F MGD18-103F KΩ F/G/H/J 3950 F MGB18-104F KΩ F/G/H/J 4200 F MGD18-103F KΩ F/G/H/J 4000 F MGB18-104F KΩ F/G/H/J 4230 F MGD18-103F KΩ F/G/H/J 4100 F MGB18-104F KΩ F/G/H/J 4250 F MGD18-153F KΩ F/G/H/J 3470 F MGB18-104F KΩ F/G/H/J 4350 F MGD18-203F KΩ F/G/H/J 3470 F MGB18-204F KΩ F/G/H/J 3890 F MGD18-203F KΩ F/G/H/J 3950 F MGB18-234F KΩ F/G/H/J 4130 F MGD18-203F KΩ F/G/H/J 4200 F MGD18-203F KΩ F/G/H/J 4230 F MGD18-303F KΩ F/G/H/J 3950 F MGD18-473F KΩ F/G/H/J 4000 F MGD18-503F KΩ F/G/H/J 3920 F MGD18-503F KΩ F/G/H/J 3950 F MGD18-503F KΩ F/G/H/J 4000 F MGD18-104F KΩ F/G/H/J 3950 F MGD18-104F KΩ F/G/H/J 4000 F MGD18-104F KΩ F/G/H/J 4200 F MGD18-104F KΩ F/G/H/J 4330 F MGD18-204F KΩ F/G/H/J 3890 F MGD18-204F KΩ F/G/H/J 4000 F MGD18-234F KΩ F/G/H/J 4130 F MGD18-504F KΩ F/G/H/J 4050 F

Temperature measurement Epoxy resin coated miniature sensors 测温型负温度系数热敏电阻 ME PART # R @ 25 C B(25/50 C) STRUCTURE IMAGE/ 结构示意图 MEB14-202F3950 2KΩ F/G/H 3950 F MEB14-222F3950 2.

F/G/H 3470 F MEB14-103F3600 10KΩ F/G/H 3600 F D ± 0.1 L1 ±0.1 L ± 1 L 2 ±1 d ± 0.01 MEB14-103F3950 10KΩ F/G/H 3950 F 0.8 2 25 ~ 120 3 0.1 ~ 0.15 MEB14-103F4100 10KΩ F/G/H 4100 F 1.2 3 25 ~ 120 3 0.

11 Temperature measurement Epoxy resin coated miniature sensors 测温型负温度系数热敏电阻 ME PART # 25 C B(25/50 C) STRUCTURE IMAGE/ 结构示意图 MEB14-202F3950 2KΩ F/G/H 3950 F MEB14-222F KΩ F/G/H 3950 F MEB14-302F3950 3KΩ F/G/H 3950 F MEB14-502F3275 5KΩ F/G/H 3275 F MEB14-502F3470 5KΩ F/G/H 3470 F MEB14-502F3950 5KΩ F/G/H 3950 F MEB14-103F KΩ F/G/H 3380 F MEB14-103F KΩ F/G/H 3470 F MEB14-103F KΩ F/G/H 3600 F D ± 0.1 L1 ±0.1 L ± 1 L 2 ±1 d ± 0.01 MEB14-103F KΩ F/G/H 3950 F ~ ~ 0.15 MEB14-103F KΩ F/G/H 4100 F ~ ~ 0.2 MEB14-303F KΩ F/G/H 3950 F ~ ~ 0.25 MEB14-473F KΩ F/G/H 3950 F ~ ~ 0.3 MEB14-473F KΩ F/G/H 4000 F CUSTOMIZED / 订制 MEB14-503F KΩ F/G/H 3950 F MEB14-503F4000 MEB14-503F KΩ 50KΩ F/G/H F/G/H F F 1 SPECIAL FOR ELECTRONIC THERMOMETER 电子体温计专用热敏电阻精度 ± 0.05 C MEB14-104F KΩ F/G/H 3920 F MEB14-104F KΩ F/G/H 3950 F MEB14-104F KΩ F/G/H 4000 F MEB14-204F KΩ F/G/H 4000 F mm MEB12-503F3950L87 50KΩ ±0.16% 3950 F 1 OTHER THERMISTOR / 其他热敏电阻 MGD-S : Glass-sealed SMD type NTC MGD-S : 玻封贴片型 MEF : Thin Film Thermistor MEF : 薄膜热敏电阻

Temperature measurement Epoxy-encapsulated sensors SPECIFICATION NTC Thermistor 104F Scope This specification deals with shape,dimensions,charac

传感器 SENSORS MEASUREMENT CONTROL SHANGHAI BENMU INDUSTRY CO., LTD. 上海本牧实业有限公司 +86 18817 233 255 www.ibenmu.com BENMU Temperature measurement Epoxy-encapsulated sensors SPECIFICATION NTC Thermistor 104F3950