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TSM24CA-Q1

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Automotive, 24-V, 30-A, bidirectional, surge protection diode in SOT23

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Data sheet

TSM24CA-Q1

ACTIVE
Data sheet Order now

Product details

Package name SOT-23 Peak pulse power (8/20 μs) (max) (W) 1200 IEC 61000-4-5 (A) 30 Vrwm (V) 24 Breakdown voltage (min) (V) 25.5 Bi-/uni-directional Bi-directional Number of channels 1 IO capacitance (typ) (pF) 14 Clamping voltage (V) 40
Package name SOT-23 Peak pulse power (8/20 μs) (max) (W) 1200 IEC 61000-4-5 (A) 30 Vrwm (V) 24 Breakdown voltage (min) (V) 25.5 Bi-/uni-directional Bi-directional Number of channels 1 IO capacitance (typ) (pF) 14 Clamping voltage (V) 40
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • Protection against 1 kV, 42 Ω IEC 61000-4-5 surges for automotive signal lines
  • Robust surge protection:
    • IEC 61000-4-5 (8/20 µs): 30 A
  • Low clamping voltage of 40 V at 24 A for 8/20 µs surge current protects downstream components
  • Bidirectional polarity to support positive and negative voltage swings and miswiring conditions
  • ± 24 V working voltage for protecting signals on 12-V systems
  • Low I/O Capacitance: 12 pF (typical)
  • Low leakage current of 75 nA (max)
  • Integrated IEC 61000-4-2 ESD protection
    • ±30-kV contact discharge
    • ±30-kV air-gap discharge
  • Small SOT-23 leaded package to minimize board space and allow for automatic optical inspection (AOI)
  • Protection against 1 kV, 42 Ω IEC 61000-4-5 surges for automotive signal lines
  • Robust surge protection:
    • IEC 61000-4-5 (8/20 µs): 30 A
  • Low clamping voltage of 40 V at 24 A for 8/20 µs surge current protects downstream components
  • Bidirectional polarity to support positive and negative voltage swings and miswiring conditions
  • ± 24 V working voltage for protecting signals on 12-V systems
  • Low I/O Capacitance: 12 pF (typical)
  • Low leakage current of 75 nA (max)
  • Integrated IEC 61000-4-2 ESD protection
    • ±30-kV contact discharge
    • ±30-kV air-gap discharge
  • Small SOT-23 leaded package to minimize board space and allow for automatic optical inspection (AOI)

The TSM24CA-Q1 is a low-capacitance TVS diode and is part of TI’s surge protection device family. The TSM24CA-Q1 robustly shunts up to 30 A of IEC 61000-4-5 (8/20 µs) fault current to protect systems from high power transients or lightning strikes. The device offers a solution to the common industrial signal line EMC requirement to survive up to 1 kV IEC 61000-4-5 open circuit voltage coupled through a 42 Ω impedance, clamping that surge at 40 V (I PP = 24 A). The TSM24CA-Q1 also has a very low line capacitance of 12 pF which allows it to protect common automotive communication networks like CAN from surges in EV charging applications.

Additionally, the TSM24CA-Q1 is available in a small leaded SOT-23 (DBZ) package which is reduced in size by approximately 50 percent compared to the industry standard SMA package. The extremely low device leakage and capacitance provide a minimal effect on the protected line.

The TSM24CA-Q1 is a low-capacitance TVS diode and is part of TI’s surge protection device family. The TSM24CA-Q1 robustly shunts up to 30 A of IEC 61000-4-5 (8/20 µs) fault current to protect systems from high power transients or lightning strikes. The device offers a solution to the common industrial signal line EMC requirement to survive up to 1 kV IEC 61000-4-5 open circuit voltage coupled through a 42 Ω impedance, clamping that surge at 40 V (I PP = 24 A). The TSM24CA-Q1 also has a very low line capacitance of 12 pF which allows it to protect common automotive communication networks like CAN from surges in EV charging applications.

Additionally, the TSM24CA-Q1 is available in a small leaded SOT-23 (DBZ) package which is reduced in size by approximately 50 percent compared to the industry standard SMA package. The extremely low device leakage and capacitance provide a minimal effect on the protected line.
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Technical documentation

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Type Title Date
* Data sheet TSM24CA-Q1 ±24 V Low Capacitance Surge Diode for Automotive Networks in SOT-23 Package datasheet (Rev. B) PDF | HTML 13 Oct 2023
Application brief ESD Protection for LIN Data Lines PDF | HTML 01 Aug 2023
Product overview Creating Protection for LIN Expansion Bus PDF | HTML 31 May 2023
Application note ESD Packaging and Layout Guide (Rev. B) PDF | HTML 18 Aug 2022
White paper Demystifying surge protection 06 Nov 2018
Application note How to select a Surge Diode 29 Aug 2018

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The electrostatic-sensitive device (ESD) evaluation module (EVM) is a development platform for most of our ESD portfolio. The board comes with all traditional ESD footprints in order to test any number of devices. Devices can be soldered onto their respect footprint and then tested. For typical (...)
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TSM24CA-Q1 PSpice Model

SLVME24.ZIP (324 KB) - PSpice Model
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