<p>E3D themselves specify this on <a href="https://e3d-online.com/products/high-precision-heater-cartridges" rel="nofollow noreferrer">the product page</a>:</p>
<blockquote>
<p>Our high precision heater cartridges feature a rounder cartridge with more consistent diameter and surface quality, ensuring greater surface area contact with the heater block for more reliable heat transfer. With the quick change principle in mind, the high precision heater cartridge uses a Molex Microfit 3.0 connector enabling quick HotEnd changes.</p>
</blockquote>
<p>E3D also provide a <a href="https://e3d-online.dozuki.com/Document/yZ3fNYgAKskGwe3Z/E-HEATER-HP-PUBLIC-%28Edition-3..pdf" rel="nofollow noreferrer">datasheet on the precision heater cartridge</a> which can be compared to that of the <a href="https://e3d-online.dozuki.com/Document/wJPXxAQHBNCVwTem/E-HEATER-ALL.pdf" rel="nofollow noreferrer">regular heater cartridges</a>.</p>
<p>From an electrical perspective, the are identical. They will put out the exact same amount of heat. The main difference is in the dimensional specifications, which for the precision cartridge is guaranteed to be a diameter of 6.0 mm +/- 0.2 mm and a length of 20.0 mm +/- 0.5 mm, while for the regular cartridge no tolerances are specified though they have the same nominal dimensions.</p>
<p>Apart from this, as we can discern from the product description, the precision cartridge comes with a connector to enable swapping and a better surface finish.</p>

CC BY-SA 4.0
2020-08-29T08:34:42.643Z
2020-08-29T09:18:59.620Z
2020-08-29T09:18:59.620Z
Tom van der Zanden
<p>Does anybody know an exact difference between E3D High Precision Heater vs a standard one? I mean technical characteristics not only about its naming.</p>
<p>Or maybe somebody has both of them and did some comparison?</p>

CC BY-SA 4.0
2020-08-29T04:56:27.797Z
Hi, welcome to 3DPrinting.SE! Wouldn't this be a marketing trick, I mean, an accurate thermistor or thermocouple would be much more important than an accurate heating element, it just needs to provide heat based on the temperature reading.
0scar
CC BY-SA 4.0
2020-08-29T06:44:48.010Z
That's why I'm wondering, considering that its current price 3 times more expensive than a standard heater!
uk25
<heat-management><e3d>
E3D High Precision Heater difference
uk25
# E3D High Precision Heater difference

(Asked by: username_0 on 2020-08-28)

Does anybody know an exact difference between E3D High Precision Heater vs a standard one? I mean technical characteristics not only about its naming.

Or maybe somebody has both of them and did some comparison?

**Tags:** heat-management, e3d
> **Comments:**
> **username_1**: Hi, welcome to 3DPrinting.SE! Wouldn't this be a marketing trick, I mean, an accurate thermistor or thermocouple would be much more important than an accurate heating element, it just needs to provide heat based on the temperature reading.  
> **username_0**: That's why I'm wondering, considering that its current price 3 times more expensive than a standard heater!  

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## 1 answers

### Answer by username_2 on 2020-08-29. Score: 1 | Accepted answer

E3D themselves specify this on [the product page](https://e3d-online.com/products/high-precision-heater-cartridges):

> Our high precision heater cartridges feature a rounder cartridge with more consistent diameter and surface quality, ensuring greater surface area contact with the heater block for more reliable heat transfer. With the quick change principle in mind, the high precision heater cartridge uses a Molex Microfit 3.0 connector enabling quick HotEnd changes.

E3D also provide a [datasheet on the precision heater cartridge](https://e3d-online.dozuki.com/Document/yZ3fNYgAKskGwe3Z/E-HEATER-HP-PUBLIC-%28Edition-3..pdf) which can be compared to that of the [regular heater cartridges](https://e3d-online.dozuki.com/Document/wJPXxAQHBNCVwTem/E-HEATER-ALL.pdf).

From an electrical perspective, the are identical. They will put out the exact same amount of heat. The main difference is in the dimensional specifications, which for the precision cartridge is guaranteed to be a diameter of 6.0 mm +/- 0.2 mm and a length of 20.0 mm +/- 0.5 mm, while for the regular cartridge no tolerances are specified though they have the same nominal dimensions.

Apart from this, as we can discern from the product description, the precision cartridge comes with a connector to enable swapping and a better surface finish.


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