PXXXXLX SERIES
Thyristor Surge Suppressors (TSS) Data Sheet
Description
DO-15/DO-201 Thyristor solid state protection thyristor
protect telecommunications equipment such as modems,
line cards, fax machines, and other CPE.
P Series devices are used to enable equipment to meet
various regulatory requirements including GR 1089, ITU
K.20, K.21 and K.45, IEC 60950, UL 60950, and TIA-968
(formerly known as FCC Part 68).
Features
Compared to surge suppression using other technologies, P Series devices offer absolute surge protection
regardless of the surge current available and the rate of applied voltage (dv/dt). P Series devices:
■ Cannot be damaged by voltage
■ Eliminate hysteresis and heat dissipation typically found with clamping devices
■ Eliminate voltage overshoot caused by fast-rising transients
■ Are non-degenerative
■ Will not fatigue
■ Have low capacitance, making them ideal for high-speed transmission equipment
■ Meets MSL level 1, per J-STD-020
■ Safety certification: UL: E244458
Electrical Parameters
Parameter
VDRM
VS
VT
IDRM
IS
IT
IH
CO
IPP
ITSM
di/dt
Definition
Peak Off-state Voltage – maximum voltage that can be applied while maintaining off state
Switching Voltage – maximum voltage prior to switching to on state
On-state Voltage – maximum voltage measured at rated on-state current
Leakage Current – maximum peak off-state current measured at VDRM
Switching Current – maximum current required to switch to on state
On-state Current – maximum rated continuous on-state current
Holding Current – minimum current required to maintain on state
Off-state Capacitance – typical capacitance measured in off state
Peak Pulse Current – maximum rated peak impulse current
Peak One-cycle Surge Current – maximum rated one-cycle AC current
Rate of Rise of Current – maximum rated value of the acceptable rate of rise in current
over time
Revision：03-Sep-14
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