Glass Sealed NTC Thermistor MFB Series

Features
1. Body sizeΦ2mm X 4mm
2. Resistance range: 1K OHM~2M OHM
3. B value range: 2000~6000K
4. -40 ~ +300° C operating temperature range
5. Agency recognition: UL/cUL
6. RoHS compliant

Characteristics
Part no.
Zero power
Resistance @ 25° C
Tolerance of R25
B value
Tolerance of B value
Max. Power Dissipation At 25° C
Dissipation Factor
Thermal Time constant
Operating temperature range

R25 (kΩ)
( ± %)
(K)
(± %)
Pmax(mW)
δ (mW/° C)
Τ(Sec. )
(° C)

MFB-5001-3200
5
1, 2, 3, 5, 10
25/50
3200
1, 2, 3, 5
100
≥ 2
≤ 9
-40~+300

MFB-5001-3470
5
25/50
3470

MFB-1002-3270
10
25/50
3270

MFB-1002-3435
10
25/85
3435

MFB-1002-3470
10
25/85
3470

MFB-1002-3550
10
25/50
3550

MFB-1002-3700
10
25/85
3700

MFB-1002-3950
10
25/50
3950

MFB-1002-3975
10
25/85
3975

MFB-2002-3950
20
25/50
3950

MFB-2002-4200
20
25/50
4200

MFB-3002-3950
30
25/50
3950

MFB-4702-3950
47
25/50
3950

MFB-5002-3950
50
25/50
3950

MFB-9862-4300
98.63
100/200
4300

MFB-1003-3950
100
25/50
3950

MFB-1003-4000
100
25/50
4000

MFB-1003-4300
100
25/85
4300

MFB-2003-4200
200
25/50
4200

MFB-2003-4300
200
25/85
4300

MFB-2003-4500
200
25/85
4500

MFB-2313-4537
231
100/200
4537

MFB-2003-4260
200
25/50
4260

MFB-1004-4400
1000
25/50
4400

MFB-1384-4400
1388
25/50
4400

PS.: Can be tailored according to clients' demand

Operating currentIn order to make the test more accurate, the running current should be as less as possible. The following formula is suggested:
I=sqrt(0.005δ T^2/(B*R))

PS.:
1. Sqrt is for square root
2. δ Is for dissipation constant in mW/° C
3. T is for temperature in Kelvins
4. B is for the index of the thermal sensitivity
5. R is for zero-power resistance in KOHM
6. Final current is in mA

Storage conditions:
1. Storage temperature: -10° C~+40° C
2. Relative humidity: ≤ 75%RH
3. Period of Storage: One year