HICTOP Ender 3 Thermistor with JST Connector 1.35m NTC 3950 100k Temp Sensor (Pack of 5) Review (2026)
Updated September 21, 2026 · Research-based review
Our verdict
A straightforward, budget-friendly thermistor pack for keeping an Ender 3 or CR-10 style printer running, with enough spares in the pack of 5 to cover both hotend and bed sensor replacements over the printer's life. Handle the glass bead carefully during install, since that is the main failure point with any thermistor of this style.

HICTOP Ender 3 thermistors with JST connector, 1.35m NTC 3950 100k temp sensors in a pack of 5.
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What we liked
- + 1.35m lead length reaches the mainboard on Ender 3 wiring runs
- + JST connector plugs straight into stock Ender boards
- + Pack of 5 covers hotend and bed sensor replacements
Trade-offs
- - Thermistor glass beads are fragile and break if pinched when installed
- - Firmware must be set to the matching thermistor type to read correctly
Wire length and connector
Each thermistor in this pack comes with a 1.35 meter lead, which is long enough to route from the hotend or bed sensor location back to the mainboard on Ender 3 style printers without needing an extension. The connector is a 2-pin JST-style XH2.54 plug, which is the same connector format used on the stock Creality mainboard thermistor headers, so it plugs in directly without needing to re-terminate wires or use an adapter. This is worth double-checking against your specific mainboard revision, since some aftermarket or upgraded boards use different connector styles even when the underlying thermistor type is the same.
Electrical specification
The thermistors are rated at 100K ohms resistance at 25C with a B value of 3950, which is the standard thermistor specification used across most Creality firmware profiles for Ender 3, Ender 3 Pro, Ender 3 V2, Ender 3 Neo and CR-10 10S printers, among others. Because this matches the stock sensor type on these printers, installing one of these as a replacement generally does not require changing the thermistor type setting in firmware, unlike some higher-temperature thermistor variants that need a different sensor profile selected. That makes this pack a safer drop-in replacement option for anyone unsure about editing firmware settings.
Handling the glass bead carefully
The sensing tip on this style of thermistor is a small glass bead, which is inherently fragile and can crack if pinched, bent sharply, or crushed when tucking it into a heater block or bed wiring channel. A cracked bead usually shows up as an erratic or jumping temperature reading, or a thermal runaway error on the printer's display, rather than a clean failure, which can make it confusing to diagnose if you are not expecting it. Taking care during installation, particularly when routing the bead into a snug heater block pocket, goes a long way toward avoiding a repeat replacement shortly after installing a new one.
Five in a pack covers more than one repair
Getting five thermistors in one purchase means you are covered for a hotend replacement, a bed sensor replacement, and still have spares left over for a future failure or a second printer, which works out cheaper per unit than buying single replacement thermistors as each failure happens. This is a practical way to stock up if you already know Creality thermistors are a wear item on your printer, since keeping a spare on hand avoids printer downtime waiting on a new part to arrive after a failure mid-project. It is also a sensible pickup for anyone running a small fleet of Ender 3 or CR-10 style printers, since one pack can cover several machines without repeat orders.
Who this pack suits
This is a sensible purchase for anyone running an Ender 3, Ender 3 Pro, Ender 3 V2, Ender 3 Neo or CR-10 10S printer who wants a stock-matching thermistor on hand for routine maintenance, without paying for features like a cartridge housing or extended high-temperature rating that a stock printer setup does not need. Owners running an upgraded hotend that specifically calls for a cartridge-style or PT100 sensor should look elsewhere, since this style of bead thermistor will not physically fit those newer mounting designs. For a stock or lightly modified Ender 3 style printer still using its original bead thermistor pocket, this pack remains one of the simplest and cheapest ways to keep a working spare on the shelf.
Frequently asked questions
Will this fit a stock Ender 3 mainboard?
Yes, the 2-pin JST-style XH2.54 connector matches the thermistor header on stock Creality mainboards, so it plugs in without needing an adapter.
Do I need to change firmware settings to use this?
Generally no, since the 100K ohm, B3950 specification matches the standard thermistor type used in Creality's default firmware profiles for these printers.
How long is the wire?
Each thermistor has a 1.35 meter lead, long enough to reach the mainboard from the hotend or bed sensor position on Ender 3 style printers without an extension.
Why did my new thermistor start giving erratic readings?
The sensing tip is a small glass bead that can crack if pinched or bent sharply during installation. A cracked bead typically causes jumping temperature readings rather than a clean failure.
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