bt148-500r transistor of datasheet pdf

BT148-500R
Manufacturer : PHILIPS[Philips Semiconductors]
Description : Thyristors logic level

BT148-500R
Manufacturer : Philips Semiconductors
Description : Thyristors logic level(???????????)

BT148-500R
Manufacturer : Philips Semiconductors
Description : Thyristors logic level

BT148-500R
Manufacturer : Philips
Description : Thyristors logic level