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Bourns TISP4240M3BJRS Overvoltage Protector

The TISP4240M3BJ is a bidirectional thyristor overvoltage protector designed to shield telecommunication equipment from high-voltage surges caused by lightning or power system disturbances. It features a symmetrical voltage-triggered structure in a compact SMBJ package, providing reliable 2-point protection for 2-wire lines, such as telephones and modems. The device clamps overvoltages, crowbars into a low-voltage conduction state, and safely diverts excess current, ensuring equipment safety. Suitable for multi-point protection applications, this device withstands international lightning surges and offers stable operation over a range of voltages essential for telecom and data systems.

Authorized Distributors
Source:Newark
Part No:TISP4240M3BJR-S
Stock:18026
Inv Date:06-04-2026
Price: Unit price: $1.27
Buy/RFQ:
Source:DigiKey
Part No:TISP4240M3BJR-S
Stock:1590
Inv Date:06-04-2026
Price: Unit price: $1.23
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Part No:TISP4240M3BJR-S
Stock:12537
Inv Date:06-05-2026
Price: Unit price: $1.23
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Part No:TISP4240M3BJR-S
Stock:15000
Inv Date:06-04-2026
Price: Unit price: $0.3241
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Part No:TISP4240M3BJR-S
Stock:15000
Inv Date:06-04-2026
Price: Unit price: $0.3241
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Source:Arrow EU
Part No:TISP4240M3BJR-S
Stock:9000
Inv Date:06-05-2026
Price: N/A
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Part No:TISP4240M3BJR-S
Stock:18000
Inv Date:06-05-2026
Price: N/A
Buy/RFQ:

Bourns TISP4240M3BJRS Overvoltage Protector Specifications:

  • Repetitive peak off-state voltage: 160 V to 400 V depending on variant
  • Non-repetitive peak on-state pulse current: 300 A (2/10 us), 220 A (8/20 us), 120 A (10/160 us)
  • Maximum impulse current: 100 A (10/700 us), 75 A (10/560 us), 50 A (10/1000 us)
  • Capacitance at 1 MHz: 45 to 60 pF depending on voltage
  • Thermal resistance: 50 °C/W on a 4-layer PCB, heatsink recommended for high power
  • Maximum junction temperature: +150 °C
  • Operational voltage range: 58 V to 320 V maximum system voltage
  • Package: SMBJ (JEDEC DO-214AA) with J-bend leads, embossed tape reel
  • Surge withstand: rated for international lightning surge standards
  • Application: Telephone line protection, modem line surge suppression, multi-point telecommunication systems
  • Voltage clamping: Clamps overvoltage to protect connected equipment from high-energy surges

Buy the Buy Bourns TISP4240M3BJ Overvoltage Protector Part Number TISP4240M3BJ Online

Secure your telecommunication and data equipment with the Bourns TISP4240M3BJ overvoltage protector, offering robust surge suppression, high current capacity, and reliable performance. Ideal for protecting 2-wire lines, modems, and multi-point systems, this device ensures safe operation even during thunderstorms and power outages. Its SMBJ package supports easy installation and effective heat dissipation. Trust this device to safeguard your critical infrastructure with its proven surge resilience, making it the perfect choice for telecom professionals seeking dependable overvoltage protection.

Get Bourns TISP4240M3BJ today—designed for reliable surge protection and long-lasting durability in telecom systems.

Frequently Asked Questions

Where can I buy Bourns TISP4240M3BJRS?

You can click on the BUY or RFQ button to purchase TISP4240M3BJRS from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part TISP4240M3BJRS?

You can download the TISP4240M3BJRS datasheet or visit the Bourns website for support.

Who is the manufacturer of TISP4240M3BJRS?

Bourns

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