PTC 加熱元件 – 5V/ 180℃ / 7-12W

-26%

PTC 加熱元件 – 5V/ 180℃ / 7-12W

NT$95 NT$70 (未稅)

Availability: 尚有庫存 貨號: OMD-008838 分類: 標籤: , ,

描述

PTC 加熱元件 – 5V/ 180℃ / 8-12W

PTC 代表“正溫度係數”。這種恆溫陶瓷PTC加熱元件可用於自動保持恆溫,無需特殊的溫度控制器和溫度傳感器,如用於溫度反饋的熱電阻和熱電偶。無論極性如何,它都適用於交流和直流。功率容量應大於發熱體的最大耗散功率,否則不能正常工作。

通電時,PTC 熱敏電阻會自行升溫。恆溫加熱PTC熱敏電阻的表面溫度將保持恆定值。這個溫度與PTC熱敏電阻的恆溫有關。多個相同電壓的加熱片並聯並並排安裝。加熱片不能重疊安裝,否則熱量會抵消。

可用於儀器預熱防凍、電磁閥防凍、線路板除濕、噴碼機噴頭防凍,適用於常年自動化無人值守的小型設備加熱除濕;研發專業技術人員可根據需要加熱應用,如保溫箱、電子保溫瓶、保溫櫃、飲水機、暖手器等。

應用:防凍

 

 

筆記

關於功率:上電後加熱功率由小到大再小,最後穩定。穩定的功率與使用條件有關。對於相同的PTC加熱器,不同的使用條件,功率可能會相差幾倍。散熱越快,穩定功率越大。我們標註的是最大功耗,實際使用的功率應該小於最大功耗。

使用場合:嚴禁在易燃易爆場合使用,或放入水中!也嚴禁敲擊或打孔!

注意:如果多個加熱元件一起使用,應並聯連接。加熱元件越多,功率越大。電源電壓的降低會使發熱體的加熱時間變長,功率變小,但溫度基本不變。

電源選擇:低壓發熱體應選用與發熱體電壓相同的電源:一般為開關電源、變壓器、蓄電池、充電電池、大容量乾電池等。電源(容量)電源的功率必須大於發熱體的最大耗散功率,這樣發熱體才能正常發熱。

特徵

  • 交流或直流電源,與極性無關
  • 高傳熱率,低功率
  • 鋁管封裝,表面恆溫,絕緣
  • 耐高溫矽膠線
  • 內置PTC發熱芯片,可長時間通電
  • 功率可自動調節,散熱快功率大

應用

  • 儀器預熱防凍
  • 電磁閥防凍
  • 線路板除濕
  • 噴墨打印機噴頭防凍

規格

  • 額定電壓:DC/AC 5V
  • 功率:7-12W
  • 溫度:180℃±10℃(實際溫度25℃環境下測得)
  • 尺寸:25*20*5mm / 0.98*0.79*0.20 英寸

貨單

  • PTC加熱元件-5V 180°C x1

PTC Heating Element – 5V 180°C

PTC stands for “Positive Temperature Coefficient”. This thermostatic ceramic PTC heating element can be used to automatically maintain a constant temperature without special temperature controllers and temperature sensors like thermal resistors and thermocouples for temperature feedback. It is suitable for both AC and DC regardless of polarity. The power capacity should be over the maximum dissipation power of the heating element, otherwise, it cannot work properly.

When powered on, the PTC thermistor heats up by itself. The surface temperature of the constant-temperature heating PTC thermistor will maintain a constant value. This temperature is related to the constant temperature of the PTC thermistor. Multiple heating pieces of the same voltage are connected in parallel and installed side by side. The heating pieces cannot be installed overlappingly, otherwise, the heat will offset.

It can be used for instrument preheating and anti-freezing, solenoid valve anti-freezing, circuit board dehumidification, inkjet printer nozzle anti-freezing, and suitable for heating and dehumidifying small equipment that is automated and unattended all the year round; R&D professional and technical personnel can use it to heat applications according to their needs, such as incubators, electronic thermos bottles, holding cabinets, water dispensers, hand warmers, etc.

 

Application: Anti-freezing

 

Application: Anti-freezing
Application: Anti-freezing

 

Note

Regarding power: The heating power goes from small to large to small after power-on, and finally stabilizes. The stable power is related to the use conditions. For the same PTC heater with different use conditions, the power may differ several times. The faster the heat dissipation, the greater the stable power. What we mark is the maximum power dissipation, and the actual power in use should be less than the maximum power dissipation.

Usage occasions: It is strictly forbidden to use it on flammable and explosive occasions, or put it into water! Percussion or punching is also strictly prohibited!

Attention: If multiple heating elements are used together, they should be connected in parallel. The more heating elements, the greater the power. The decrease of the power supply voltage will make the heating time of the heating element longer and the power smaller, but the temperature is basically constant.

Power supply selection: The low-voltage heating element should use a power supply with the same voltage as the heating element: generally switching power supplies, transformers, storage batteries, rechargeable batteries, large-capacity dry batteries, etc. The power (capacity) of the power supply must be greater than the maximum dissipated power of the heating element, so that the heating element can generate heat normally.

FEATURES

  • AC or DC power supply regardless of the polarity
  • High heat transfer rate, low power
  • Aluminum tube encapsulation, constant temperature surface, insulation
  • High temperature resistant silicone wire
  • Built-in PTC heating chip, can be electrified for a long time
  • The power can be adjusted automatically, and the power will be larger if the heat dissipation is fast

APPLICATIONS

  • Instrument preheating and anti-freezing
  • Solenoid valve anti-freezing
  • Circuit board dehumidification
  • Inkjet printer nozzle anti-freezing

SPECIFICATION

  • Rated voltage: DC/AC 5V
  • Power: 7-12W
  • Temperature: 180℃±10°C (Measured in an environment where the actual temperature is 25°C)
  • Size: 25*20*5mm / 0.98*0.79*0.20 inches

SHIPPING LIST

  • PTC Heating Element-5V 180°C x1

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