NTC Thermistors
NTC & PTC Thermistors
Pearl-Shaped Precision NTC Thermistor for Temperature Measurement The MF52 series of Pearl-Shaped NTC Thermistors is ethoxyline resin coated. The small size is made possible by new materials and manufacturing methods which provide the benefit of close tolerances and fast response. MF52 thermistors are available with 5 lead styles in standard or custom lengths.
MF52
Applications
Heating, Ventilation & Air Conditioning
• Temperature Regulation and Measurement
• Electronic Thermometers
• Liquid Level Sensing
• Automotive Electronics
• Medical Equipment and Apparatus
• Battery Packs and Portable Electronics
Characteristics
• Small Size and fast response
• Available tolerances: ±1%, ±2%, ±3%, ±5% and ±10%
• Long-term Stability and Reliability
• Excellent Tolerance and Interchangeability
• Available in all popular resistance values
• Dissipation Constant ≥2.0mW/°C
• Time Constant of ≤7 seconds in still air
• Available in custom probes
• UL Listed E24099, CQC 07001019009
Dimensions (mm)
A: Tin. Ag. nickel plated cu wire
| Code | D max |
L1 max |
L2 min |
d +/- 0.05 |
F +/- 0.5 |
| A1 | 2.5 | 4.0 | 25 | 0.3 | 1.7 |
| A2 | 3 | 4.5 | 25 | 0.45 | 2.2 |
B: Enamelled cu wire
| Code | D max |
L1 max |
L2 min |
L3 +/- 1 |
d +/- 0.05 |
| B1 | 2 | 3.5 | Customer Specified |
3 | 0.2 |
| B2 | 3 | 4 | Customer Specified |
3 | 0.3 |
C: High temp fluorin-plastic wire
| Code | D max |
L1 max |
L2 min |
L3+/- 1 |
d +/- 0.05 |
| C1 | 3 | 7.5 | Customer Specified |
5 | 0.26 |
| C2 | 4 | 7.5 | Customer Specified |
5 | 0.32 |
D: PVC wire
| Code | D max |
L1 max |
L2 min |
L3+/-1 | d +/- 0.05 |
| D1 | 3 | 7.5 | Customer Specified |
5 | 0.26 |
| D2 | 4 | 7.5 | Customer Specified |
5 | 0.32 |
E: Lead and head according to specification
| Code | D max |
L1 max |
L2 min |
L3+/- 1 |
d +/- 0.05 |
| E1 | Customer Specified |
Customer Specified |
Customer Specified |
5 | Customer Specified |
| E2 | Customer Specified |
Customer Specified |
Customer Specified |
5 | Customer Specified |
F: Tinned Lead-Frame Style
| Code | D max |
L1 max |
L2 +/- 1.5 |
d
max |
F +/- 0.5 |
Tmax |
| F | 3.8 | 9.5 | 17 | 0.5 | 2.5 | 3.5 |
Specification
Main Techno-Parameter
| Part No. |
Rated Resistance R25 (KΩ) |
B Value (25/50ƒC) (K) |
Rated Power(mw) |
Dissi. Coef. (mW/ƒC) |
Thermal time Constant(S) |
Operating Temp.(ƒC) |
| MF523100 MF523270 MF523380 MF523470 MF523600 MF523950 MF524000 MF524050 MF524150 MF524300 MF524500 |
0.1-20 0.2-20 0.5-50 0.5-50 1-100 5-100 5-100 5-200 10-250 20-1000 20-1000 |
3100 3270 3380 3470 3600 3950 4000 4050 4150 4300 4500 |
≤ 50 |
≥ 2.0 In Still Air |
≤ 7 In Still Air |
-55ƒ – +125ƒC |
Remark:
* B Value (25/50C) error is ±1% for components with rated resistance tolerance of ±1% and ±2% for all others.
Notice:
* The two ends of the lead wire cannot endure too big pull because of the small size and soldered spot in series of MF52.
* Solder at least 5mm from the bottom of wire.