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Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. !Note *Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this PDF catalog to prevent smoking and/or burning, etc.
*This catalog has only typical specifications. Therefore,thereareno space for detailed specifications. Therefore, please approve our productsheet for product specifications before ordering. product specifications before ordering. This catalog has only typical specifications because you is requested to approve our product specifications or to transact the approval specifications or transact the approval sheet for
R90E6.pdf 04.3.1
POSISTORr for Circuit Protection
for Overheat Sensing Lead Type
5.0 max. 4.0 max.
PTFM type has been developed for protecting power transistors, stereo main amplifiers, etc. from overheating, and also for sensing the temperature of other components which may be overheated. The "POSISTOR" offers an excellent temperature sensing ability, exhibiting a steep change in electrical resistivity near the temperature setting. PTFL type is suitable for use as an air temperature sensor.
PTFL Series
3.0 max.
3.51.5
25 min.
o0.50.05
s Features
1. PTFM type is a screw-fixing type and PTFL type is a lead type, therefore mounting is easy. 2. Compact and light design as well as excellent thermal response 3. Solid-state construction withstands mechanical vibration and impact sufficiently 4. Contactless operation provides a prolonged service life, yet permits noiseless operation. 5. The operating point of "POSISTOR" is set on the steepest point along the resistance-temperature characteristic curve, thus performing the overheat protective operation securely. 6. PTFM type and PTFL type have the same temperature characteristic, providing a selection depending on the mounting method.
Max. Voltage (V) 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Curie Point (C) 40 (BH) 50 (BG) 60 (BF) 70 (BE) 80 (BD) 90 (BC) 100 (BB) 40 (BH) 50 (BG) 60 (BF) 70 (BE) 80 (BD) 90 (BC) 100 (BB) Sensing Temp. (TS) (C) 60 70 80 90 100 110 120 60 70 80 90 100 110 120
(in mm)
7.50.4 3.70.3
3.00.3 t0.50.05
13.20.5
3.51.5 395
PTFM Series
o0.50.05
2.5max. in mm
Part Number PTFp04BH471Q2N34B0 PTFp04BG471Q2N34B0 PTFp04BF471Q2N34B0 PTFp04BE471Q2N34B0 PTFp04BD471Q2N34B0 PTFp04BC471Q2N34B0 PTFp04BB471Q2N34B0 PTFp04BH222Q2N34B0 PTFp04BG222Q2N34B0 PTFp04BF222Q2N34B0 PTFp04BE222Q2N34B0 PTFp04BD222Q2N34B0 PTFp04BC222Q2N34B0 PTFp04BB222Q2N34B0
Resistance Value (at 25C) (max.) (ohm) 100 100 100 100 100 100 100 330 330 330 330 330 330 330
Resistance Value (at Sensing Temp. -10C) (max.) (ohm) 330 330 330 330 330 330 330 1.5k 1.5k 1.5k 1.5k 1.5k 1.5k 1.5k
Resistance Value (at Sensing Temp. TSC) (min.) (ohm) 470 470 470 470 470 470 470 2.2k 2.2k 2.2k 2.2k 2.2k 2.2k 2.2k
12
A blank is filled with type codes. (L: Lead type, M: with Lug-terminal) The order quantity should be an integral multiple of the "Minimum Quantity" shown in the "Package" page.
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