Radial Leaded Glass Sealed Bead NTC Thermistor 3300Ω@100C, Beta B(0/100) 3970K, Temperature Measurement -40C to +300C

AMWEI Product Number: AMF58B-332@100C3970B(0/100)

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: 3.0 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	3.0 mm Max	65±5 mm	0.2 mm

Radial Glass Bead NTC Thermistor 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 100C R100: 3300 ohm+/2.5%
Beta Value B(0/100): 3970K+/-2%
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.

Resistance vs. Temperature RT Data

Temperature Centigrade	Resistance (K Ohm)	Temperature Centigrade	Resistance (K Ohm)	Temperature Centigrade	Resistance (K Ohm)
-40C	1629.006KΩ	80C	6.231 KΩ	200C	0.276 KΩ
-35C	1183.375 KΩ	85C	5.303KΩ	205C	0.249 KΩ
-30C	871.033 KΩ	90C	4.508 KΩ	210C	0.226 KΩ
-25C	649.103 KΩ	95C	3.849 KΩ	215C	0.205 KΩ
-20C	483.115 KΩ	100C	3.300 KΩ	220C	0.187 KΩ
-15C	363.713 KΩ	105C	2.834 KΩ	225C	0.170 KΩ
-10C	276.794 KΩ	110C	2.444 KΩ	230C	0.155 KΩ
-5C	212.804 KΩ	115C	2.115 KΩ	235C	0.142 KΩ
0C	165.191 KΩ	120C	1.838 KΩ	240C	0.130 KΩ
5C	128.196 KΩ	125C	1.602 KΩ	245C	0.120 KΩ
10C	100.382 KΩ	130C	1.397 KΩ	250C	0.110 KΩ
15C	79.273 KΩ	135C	1.223 KΩ	255C	0.101 KΩ
20C	63.109 KΩ	140C	1.073 KΩ	260C	0.093 KΩ
25C	50.627 KΩ	145C	0.945 KΩ	265C	0.085 KΩ
30C	40.712 KΩ	150C	0.835 KΩ	270C	0.079 KΩ
35C	32.970 KΩ	155C	0.738 KΩ	275C	0.073 KΩ
40C	26.882 KΩ	160C	0.655 KΩ	280C	0.067 KΩ
45C	22.059 KΩ	165C	0.583 KΩ	285C	0.062 KΩ
50C	18.212 KΩ	170C	0.520 KΩ	290C	0.058 KΩ
55C	15.025 KΩ	175C	0.465 KΩ	295C	0.054 KΩ
60C	12.467 KΩ	180C	0.417 KΩ	300C	0.050 KΩ
65C	10.402 KΩ	185C	0.375 KΩ
70C	8.725 KΩ	190C	0.338 KΩ
75C	7.356 KΩ	195C	0.305 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.