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High performance, high peak pulse current
TVS diodes for power line protection: DF2SxxP2 series

Product News 2017-09

SOD-963(CST2C),SOD-323(USC)

"DF2SxxP2 series" is high-performance and high-peak-pulse TVS diode, which protects equipment from ESD and noises, which come from power line or quick charging.
Application of Toshiba's original Zener diode process to the DF2SxxP2 series has lowered dynamic resistance to 80 % that of existing products[1], securing instant absorption of electrostatic discharge (ESD) and noise. The diodes also realize a high peak pulse current rating about 32 times[1][2] larger than that of existing products[1], which contributes to system reliability, while keeping electrostatic discharge unchanged at 30 kV.
The new diodes protect the power lines of smartphones and tablets by suppressing malfunctions and damage from ESD, noise that enters via the power cord and signal cable, and transient voltage at the time of turning equipment on or off. They can also be used to protect the USB Type-C™[3] charging lines (VBUS=5 V to 20 V) that will be widely used in the future.

Features

  • High peak pulse current
  • Support for three-kind power supply line voltages: 5 V, 12 V and 20 V lines
  • Two package types:
    SOD-963 package of small and thin [CST2C, 1.6×0.8 mm, t=0.48 mm (typ.)]
    SOD-323 standard package [USC, 2.5×1.25 mm, t=0.9 mm (typ.)]

Applications

  • Mobile devices power supply connector of
    smart phone, tablet, Laptop PC and portable battery pack ,etc.
  • Equipment with the USB connector of
    projector, printer, DSC, POS, Tester and LCD display, etc.

Product Specifications

(@Ta=25°C)

Part number Power supply
line voltage
(V)
Package Absolute maximum ratings Electrical characterictics
Name
(Toshibaʼs name)
Size
typ.
(mm)
Electrostatic
discharge
VESD[3]
(kV)
Peak pulse
current
IPP
(A)
Reverse breakdown voltage
VBR
typ.
(V)
Dynamic resistance
RDYN[4]
typ.
(Ω)
DF2S6P2CTC 5 SOD-963
(CST2C)
1.6×0.8、
t=0.48
±30 80 6.7 0.08
DF2S14P2CTC 12 50 13.5 0.08
DF2S23P2CTC 20 14 24.1 0.13
DF2S6P2FU 5 SOD-323
(USC)
2.5×1.25、
t=0.9
±30 80 6.7 0.08
DF2S14P2FU 12 50 13.5 0.08
DF2S23P2FU 20 14 24.1 0.13

Notes:
[1] Compared with the existing 5 V line product, “DF2S6.8ASL”
[2] Compared with the existing 5 V line product. The peak pulse current rating differs depending on the voltage class.
[3] USB Type-C is a trademark of USB Implementers Forum, Inc.
[4] @IEC61000-4-2 (contact discharge)
[5] @TLP parameter: ZO=50 Ω, tp=100 ns, tr=300 ps, averaging window t1=30 ns to t2=60 ns

Equivalent Circuit

Equivalent Circuit

Application Circuit Example

Application Circuit Example

The application circuits shown in this document are provided for reference purposes only. Thorough evaluation is required,
especially at the mass-production design stage. Toshiba Electronic Devices & Storage Corporation does not grant any
license to any industrial property rights by providing these examples of application circuits.

Information in this document, including product prices and specifications, content of services and contact information, is correct on the date of the announcement but is subject to change without prior notice.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.