High Power TVS Diodes for Bidirectional Protection

TDK offers extremely small TVS diodes for highly effective ESD protection

Image of EPCOS/TDK's B74121G0050M060/B74111G0050M060 TVS DiodesTDK Corporation's B74121G0050M060, B74111G0050M060, B74111U0033M060, and B74121U0033M060 high-power TVS diodes are offered in very small sizes for ESD protection. These diodes extend TDK’s extensive portfolio of components for bidirectional overvoltage protection of I/O interfaces. The space requirement of the so-called chip scale package (CSP) is 400 µm x 200 µm (CSP01005) or 600 µm x 300 µm (CSP0201) with a package height of just 100 µm.

The B74121G0050M060 and B7411G0050M060 TVS diode are designed for an operating voltage of 5 V and a response voltage of 6.8 V. The clamping voltages of the two components are 7.2 V at a peak pulse current of 8 A or 8 V at a peak pulse current of 16 A. The TVS diodes differ in their parasitic capacitances; B74121G0050M060 has a capacitance of 12 pF, while the B74111G0050M060 has a capacitance value of 5 pF. Other features include the short response time and low leakage current of 2 nA at 3.3 V.

The B74111U0033M060 and B74121U0033M060 ultra-low clamp TVS diodes are designed for a maximum operating voltage of 3.3 V. The ULC types feature an extremely low clamping voltage of ~3.8 V at a peak pulse current of 8 A or 16 A at ~5 V. The breakdown voltage is 6.3 V. The B74111U0033M060 type has a minimum capacitance of ~0.5 pF and the B74121U0033M060 type has a minimum capacitance of ~0.6 pF, both at 1 MHz. Additionally, the B74111U0033M060 and B74121U0033M060 features include extremely short response times and low leakage current of ~1 nA at 3.3 V.

Features
  • Bidirectional protection of I/O interfaces
  • ESD protection to IEC 61000-4-2
  • Maximum contact discharge voltage of up to 24 kV
  • Surge current loads of up to 8 A according to IEC 61000-4-5 (8/20 µs)
  • Low clamping voltage of 8 V
  • Minimal space requirements of 400 µm x 200 µm or 600 µm x 300 µm in chip scale package
  • Extremely low package height of just 100 µm
Applications
  • Devices for IoT, smart homes, or industry 4.0
  • Smartphones, notebooks, tablets, smart watches, or hearing aids
  • High-speed interface ICs and data lines such as USB 3.1, USB 3.2, HDMI, FireWire, and Thunderbolt

Sample Kit

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
SAMPLE KIT TVS DIODE BIDIRECTIONB74999T9999M099SAMPLE KIT TVS DIODE BIDIRECTION10 - ImmediateView Details

B74121U0033M060/B74111U0033M060 TVS Diodes

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
TVS DIODE 3.3VWM 5.2VC 0201B74121U0033M060TVS DIODE 3.3VWM 5.2VC 02010View Details
TVS DIODE 3.3VWM 5VC 1005B74111U0033M060TVS DIODE 3.3VWM 5VC 100514493 - ImmediateView Details

B74121G0050M060/B74111G0050M060 TVS Diodes

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
TVS DIODE 5VWM 7.2VC WL-CSP0201B74121G0050M060TVS DIODE 5VWM 7.2VC WL-CSP020114740 - ImmediateView Details
TVS DIODE 5VWM 8VC WL-CSP01005B74111G0050M060TVS DIODE 5VWM 8VC WL-CSP0100519976 - ImmediateView Details
Updated: 2021-06-28
Published: 2021-04-29