307C1287R [VISHAY]
RESISTOR, TEMPERATURE DEPENDENT, PTC, 150 ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT;
| 型号： | 307C1287R |
| 厂家： | 
VISHAY |
| 描述： | RESISTOR, TEMPERATURE DEPENDENT, PTC, 150 ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT 加热元件 电阻器 |
| 文件： | 总2页 (文件大小：117K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
307C Lighting Thermistors
Vishay Cera-Mite
PTC Thermistors For Electronic Fluorescent Ballasts
FEATURES
• Electrode preheat thermistors for use in compact
fluorescent lamps (CFL) and electronic ballasts
• Current limiting, time-delayed start-up extends lamp life
• Quiet, flicker-free operation
• Developed in cooperation with leading ballast designers
• Both standard and custom parts are available
• Economical, reliable and proven in millions of lamps
throughout the world
• RoHS compliant e3 (Note 6)
APPLICATION CONSIDERATIONS
• Ignition time can be optimized to increase life of lamp.
• PTC resistance (R25) is chosen, along with filament
resistance and application voltage, to control desired
electrode preheat current.
• Lamp preheat time is determined by time required for
thermistor to switch from low to high resistance state.
Preheat currents shown result in switch times of
approximately 1 second at 25 °C. Lower currents result in
longer switch times.
PTC THERMISTORS FOR ELECTRONIC FLUORESCENT BALLASTS
RESISTANCE INSTANTANEOUS CONTINUOUS PREHEAT
D
MAX.
(mm)
FLUORESCENT LAMP
R25
VOLTAGE
VOLTAGE
CURRENT
(mA)
PART
(OHMS)
(VRMS
)
(VRMS
)
NUMBER
1
2
3
4
5
6
150
150
50
265
280
175
265
260
230
235
320
350
400
410
420
460
450
80
200
50
150
95
215
200
430
350
370
280
260
300
260
225
205
185
170
140
4.5
4.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
307C1407
307C1414
307C1230
307C1654
307C1364
307C1259
307C1253
307C1223
307C1171
307C1225
307C1390
307C1252
307C1224
307C1622
C
70
100
125
150
200
240
300
380
600
600
850
PTC
80
90
145
150
165
170
120
200
340
Tinned Copper Clad Steel Wire
24 AWG when D ≤ 8.5 mm
22 AWG when D ≥ 10 mm
5 mm
max
100
150
180
200
300
300
500
800
850
70
70
85
150
85
340
340
350
355
370
420
480
530
520
210
300
210
400
265
150
165
265
75
320
400
450
175
50
140
50
100
60
90
120
390
400
380
300
270
230
190
155
190
750
725
670
550
7
7
7
7
7
7
7
7
7
8.5
8.5
8.5
8.5
10
10
10
307C1403
307C1306
307C1569
307C1375
307C1242
307C1360
307C1361
307C1362
307C1260
307C1367
307C1366
307C1363
307C1287
32 mm min
4.5 mm
max.
LS = 5 mm
D
Options:
• High Temperature Coating
• Short Clipped Leads
• Other Wire Forms and Lead
Spacings
280
310
430
820
750
420
307C1258
307C1365
307C1422
100
400
Note 1: R25 - Nominal zero power resistance 25 % at 25 °C. For given diameter, higher resistance thermistors offer higher maximum voltages.
Note 2: Instantaneous Voltage - Maximum rms voltage permitted across thermistor during fluorescent lamp start-up cycle.
Note 3: Continuous Voltage - Maximum rms voltage continuously applied across thermistor during normal lamp operation.
Note 4: Preheat Current - rms current (60 Hz) which switches thermistor to high resistance in approximately 1 second at 25 °C ambient.
Note 5: Size (mass) of PTC influences rate of I2R temperature increase. For given resistance, larger thermistors have longer switch times.
Optional coating slightly increases switch time.
Note 6: P/N suffix (not shown) describes wire lead forms and other options. Final suffix “R” denotes RoHS compliance.
www.vishay.com
10
Document Number: 23088
Revision 19-Dec-05
ceramite.support@vishay.com
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
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307C1306R
RESISTOR, TEMPERATURE DEPENDENT, PTC, 150 ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT
VISHAY
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