The TISP61089B is a dual forward-conducting buffered P-gate thyristor (SCR) overvoltage protector designed for telecommunication circuits. It provides reliable overvoltage and lightning protection for Subscriber Line Interface Circuits (SLICs) by clipping positive voltages to ground and switching into a low-impedance on-state during negative overvoltage events. The device tracks the negative supply voltage, minimizing stress on the circuitry. Its high reliability, high holding current, and compatibility with Bellcore and ITU-T standards make it ideal for protecting sensitive telecom equipment against transient surges and power faults.
Non-repetitive peak on-state pulse current: 40 A (10/360 wave shape)
Non-repetitive peak on-state pulse current: 100 A (1/50 us wave shape)
Operating temperature range: -40°C to +85°C
Junction temperature: -40°C to +150°C
Storage temperature: -40°C to +150°C
Gate trigger current: 6 µA at 25°C
Breakover voltage (Vao): 12 V (2/10 wave shape) with -100 A impulse
Peak forward voltage (Vf): 3 V at 5A
Peak forward recovery voltage: 10V at 100A
Line feed resistance: 20 +30 Q
Maximum load voltage: -155 V to +12 V depending on conditions
Gate decoupling capacitor: 100-220 nF
Series resistor for surge survival: 25Ω (first-level), 40Ω (second-level), 8Ω (intra-building)
Maximum RMS current for surge conditions varies with wave shape and resistance
Designed to meet Bellcore GR-1089 and ITU-T K.20, K.21, K.45 standards.
Buy the Bourns TISP61089B – Reliable Overvoltage Protector for Industrial Applications
Secure your telecommunication equipment with the Bourns TISP61089B, a dual SCR overvoltage protector that clips voltage surges and prevents damage from lightning and power transients. It tracks negative supply voltages, reducing circuit stress and latchup risk. Ideal for Subscriber Line Interface Circuits, it meets Bellcore and ITU-T standards for surge protection, ensuring reliable and compliant operation. Purchase online today to safeguard your sensitive circuits efficiently and confidently with this high-reliability, industry-grade protection device.
Get Bourns TISP61089B today—built for precision and long-lasting durability in telecom energy protection.
Frequently Asked Questions
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