Taiwanese-Sunlead Electrical Corp.-PTC, PTCR, heater, heating elements, motor starters, ceramic PTC thermistors as protectors-controllers-sensors, temperature sensors, transformers. Commerce Manufacturer Machinery Taipei China Asian Pacific R.O.C.

CERAMIC PTC THERMISTORS FOR
SPECIAL APPLICATIONS

Preheater for Fluorescent Lamp Heating Coil

Ceramic PTC thermistors can be used to extend the service life of fluorescent lamp by preheating the lamp heating coil. For this purpose, the thermistor is connected in parallel with the resonant capacitor used to generate power for lighting of the lamp. In this case, the current is allowed to flow around the capacitor and through the thermistor at switch-on. Once the thermistor heats up, its resistance increases rapidly and diverts currents to the resonant capacitor for charge build-up.

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Product Listing:

PTC THERMISTORS FOR PREHEATING FLUORESCENT LAMP STARTING COIL
Model	T_s (^oC)	R₂₅^o_C (�[) ±30%	V_R (V)	V_W/S (V)	�n_OP (sec)	�n _R (sec)	Dimension (mm)
BPB75RNH	80±5	75	220	>450	0.05-0.5	��60	�X 6.0x2.6
BPB100NH		100	220	>500	0.1-0.5	��60	�X 4.6x2.6
BPB300NH		300	220	>500	0.1-0.5	��60	�X 4.6x2.6
BPB500NH	120±5	500	220	>500	0.1-0.5	��60	�X 4.6x2.6
BPF300NH		300	220	>500	0.1-0.5	��60	�X 4.6x2.6
BPF500NH		500	220	>500	0.2-0.5	��60	�X 4.6x2.6
BPF1K2NH		1.2K	220	>600	0.2-0.5	��60	�X 4.6x2.6
BPF1K9NH		1.9K	220	>600	0.2-0.5	��60	�X 4.6x2.6
BPC1K9NH	95±5	1.2K	220	>600	0.2-0.5	��60	�X 4.6x2.6