Radial Leaded Glass Encapsulated Bead NTC Thermistor 100K Ohm Beta B(25/50) 3950K, Temperature Measurement -40C to +300C

Name: NTC 300C 100K Ohm Beta 3950K Radial Glass Bead - AMWEI Thermistor Sensor
Brand: AMWEI
Availability: InStock

AMWEI Product Number: AMF58B-104F3950

Radial Glass Bead NTC Shape and Dimension

Radial Glass Bead NTC Thermistor

Glass body diameter D: 1.3±0.2 mm
Glass body Length L1: 2.8 mm Max
Dumet Lead Wire (copper-clad FeNi) length L2: 65±5 mm
Dumet Lead Wire Diameter Φd: 0.2 ±0.05 mm:

D	L1	L2	Φd±0.05
1.3±0.2 mm	2.8 mm Max	65±5 mm	0.2 mm

Radial Glass Bead NTC 100K Ohm 3950K Application

For high temperature measurement upto 300C. Typical application in industrial process control, motors, heating and air conditioning (HVAC) , medical industry, 3D printing, food processing, etc.

Radial Glass Bead NTC Thermistor Electric Characteristics Data

Resistance at 25C R25: 100K ohm+/-1%
Beta Value B(25/50): 3950K+/-1%
Optional R25 resistance tolerance, ±1%(F), ±2%(G), ±3%(H), or ±5%(J)
Dissipation Factor: 0.5 mw/℃ min.
Thermal Time Constant (in still air): 6.5 seconds max.
Insulation resistance: room temperature, 50VDC, 60 Seconds, 10 MΩ min.
Operating temperature range: -40 to +300C.

NTC 100K Ohm 3950K Resistance vs. Temperature RT Data

Temperature Centigrade	Resistance (KΩ)	Temperature Centigrade	Resistance (KΩ)	Temperature Centigrade	Resistance (KΩ)
-40C	3283.068 KΩ	80C	12.386 KΩ	200C	0.561 KΩ
-35C	2364.601 KΩ	85C	10.530KΩ	205C	0.509 KΩ
-30C	1728.310 KΩ	90C	8.985 KΩ	210C	0.462 KΩ
-25C	1279.210 KΩ	95C	7.694 KΩ	215C	0.420 KΩ
-20C	957.158 KΩ	100C	6.610 KΩ	220C	0.383 KΩ
-15C	723.060 KΩ	105C	5.698 KΩ	225C	0.349 KΩ
-10C	550.905 KΩ	110C	4.926 KΩ	230C	0.319 KΩ
-5C	423.023 KΩ	115C	4.272 KΩ	235C	0.292 KΩ
0C	327.187 KΩ	120C	3.714 KΩ	240C	0.268 KΩ
5C	254.804 KΩ	125C	3.238 KΩ	245C	0.246 KΩ
10C	199.749 KΩ	130C	2.830 KΩ	250C	0.226 KΩ
15C	157.602 KΩ	135C	2.479 KΩ	255C	0.208 KΩ
20C	125.142 KΩ	140C	2.176 KΩ	260C	0.192 KΩ
25C	100.000 KΩ	145C	1.915 KΩ	265C	0.178 KΩ
30C	80.419 KΩ	150C	1.688 KΩ	270C	0.165 KΩ
35C	65.087 KΩ	155C	1.497 KΩ	275C	0.153 KΩ
40C	53.020 KΩ	160C	1.330 KΩ	280C	0.142 KΩ
45C	43.473 KΩ	165C	1.185 KΩ	285C	0.132 KΩ
50C	35.882 KΩ	170C	1.058 KΩ	290C	0.123 KΩ
55C	2.9688 KΩ	175C	0.947 KΩ	295C	0.114 KΩ
60C	24.713 KΩ	180C	0.849 KΩ	300C	0.107 KΩ
65C	20.657 KΩ	185C	0.764 KΩ
70C	17.345 KΩ	190C	0.688 KΩ
75C	14.628 KΩ	195C	0.621 KΩ

Radial Glass Bead NTC Thermistor Mechanical Test

Test	Standard	Test Conditions and methods	Requirements
Soldering & Solderability	IEC60068-2-20 Test Ta	Temperature: 230±5 ℃， 2-2.5mm away from ceramic body On: 2±0.5 Seconds.	The terminations shall be evenly tinned
Resistant to soldering heat	IEC60068-2-20 Test Tb	Temperature: 260±5℃, 2-2.5mm away from ceramic body On：10±1 Seconds.	No visible damage, ΔR25/R25≤2%
Lead wire tensile	IEC60068-2-21 Test U	Test Ua: Force 10N, On 10 Seconds; Test Ub: Bending 90C, Force 5N, Twice.	No break off, ΔR25/R25≤2%

Radial Glass Bead NTC Thermistor Reliability Data

Test	Standard	Test Conditions	ΔR25/R25 (typical)	Remarks
Low temperature storage	IEC 60068-2-1	Storage at low category temperature: -40C, Time: 1000 hours	≤3%	No visible damage
Storage in dry heat	IEC 60068-2-2	Storage at upper category temperature: 250C, Time: 1000 hours	≤3%	No visible damage
Storage in damp heat, steady state (Humidity test)	IEC 60068-2-3	Temperature: 40C, Humidity:90%-95% RH, Duration: 1000 hours	≤3%	No visible damage
Temperature cycling	IEC 60068-2-14	1. -30C/30 minutes 2. 80C/5minutes 3. 250C/30 minutes 4. 80C/5minutes. Number of cycles: 5 Cycles	≤3%	No visible damage

Note
Contact of NTC thermistors with any liquids and solvents shall be prevented. It must be ensured that no water enters the NTC thermistors (e.g. through plug terminals).
Avoid dewing and condensation unless thermistor is specified for these conditions.