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Toshiba Semiconductor and Storage DF2B29FU,H3F
- Part No.:
- DF2B29FU,H3F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DF2B29FU,H3F.pdf
- Description:
- TVS DIODE 24VWM 47VC USC
- Quantity:
- Payment:
- Shipping:
Inventory:17,143
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Product details
Overview
DF2B29FU,H3F from Toshiba Electronic Devices & Storage Corporation is an AEC-Q101-qualified ESD protection diode in a USC package, designed for bidirectional transient suppression with 24 V working peak reverse voltage, ±25 kV IEC61000-4-2 contact ESD rating, and 47 V clamp voltage at 3 A peak pulse current. It protects high-speed data lines in automotive infotainment interfaces.
For engineers reviewing the DF2B29FU,H3F datasheet, DF2B29FU,H3F pinout, DF2B29FU,H3F application, or DF2B29FU,H3F equivalent, key selection criteria include IEC61000-4-2/ISO10605 compliance, low dynamic resistance (9 Ω typ.), 10 pF total capacitance, and AEC-Q101 qualification for automotive signal line protection.
Technical Context
This device implements a silicon epitaxial planar TVS structure optimized for fast response to electrostatic discharge events. Its bidirectional clamping action operates symmetrically across both polarities, with defined breakdown at 30 V (typ.) and guaranteed clamp performance up to 3 A per IEC61000-4-5 8/20 µs waveform.
The USC package enables surface-mount integration on space-constrained PCBs, supporting automated assembly while maintaining thermal stability under repetitive surge conditions. Dynamic resistance of 9 Ω (typ.) ensures minimal voltage overshoot during transient events, critical for safeguarding 3.3 V and 5 V logic interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage | 24 V - Maximum continuous DC or RMS reverse voltage before leakage exceeds 0.1 µA |
| Reverse Breakdown Voltage | 30 V (typ.) - Voltage at which device enters avalanche conduction at 1 mA test current |
| Clamp Voltage | 47 V max at 3 A - Maximum voltage seen by protected circuit during standardized 8/20 µs surge |
| ESD Rating (IEC61000-4-2) | ±25 kV contact - Withstands repeated electrostatic discharges without degradation |
| Total Capacitance | 10 pF max at 0 V - Enables use on USB 2.0, HDMI, and other high-speed digital lines |
| Dynamic Resistance | 9 Ω typ. - Limits voltage overshoot during fast transients, improving protection margin |
| Peak Pulse Power | 140 W - Sustains single 8/20 µs surges up to 140 W without failure |
Pinout & Package
DF2B29FU,H3F uses the USC (Ultra Small Chip) package: 1.0 mm × 0.6 mm × 0.35 mm, 2-pin SMD, weight 4.5 mg (typ.), land pattern per Fig. 8.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Connects to signal line requiring ESD protection; forms cathode-to-ground path during positive transients |
| Pin 2 | Cathode | Connected to system ground; completes clamping path for both polarities via bidirectional junction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including infotainment and body control modules |
| Bidirectional clamping | Protects against both positive and negative ESD events without polarity-sensitive layout |
| Low dynamic resistance | 9 Ω typical ensures minimal voltage rise during 3 A transient, preserving signal integrity |
| Low capacitance | 10 pF maximum avoids signal distortion on 480 Mbps USB 2.0 and similar interfaces |
| USC package footprint | 1.0 × 0.6 mm saves board space versus SOD-323 or SC-70, enabling dense routing |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Lines |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+ and D− signals from user-handling ESD in automotive head units. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed inline between connector and PHY, clamping transients before they reach the controller. Use Value: 10 pF capacitance prevents signal integrity loss at 480 Mbps; ±25 kV contact rating meets OEM ESD test requirements. | Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines in vehicle display systems exposed to frequent plug/unplug cycles. IC Role / Device Role / Timing Role: Low-capacitance ESD suppressor on 3.3 V I²C bus, operating within timing budget of 100 kHz–400 kHz clock rates. Use Value: 24 V VRWM allows compatibility with 3.3 V rail; 47 V VC at 3 A prevents latch-up in downstream level shifters. |
| Automotive Camera Serial Link | Industrial Sensor Interface |
Use Scenario: Shielding GMSL or FPD-Link III serial video streams from ESD in ADAS camera modules mounted on exterior vehicle surfaces. IC Role / Device Role / Timing Role: Signal-line protector on high-speed serialized video pairs, placed adjacent to connector per layout guidelines. Use Value: 9 Ω dynamic resistance minimizes jitter-inducing voltage spikes; USC package fits tight connector keep-out zones. | Use Scenario: Protecting RS-485 or CAN FD transceiver I/O pins in factory automation sensors subjected to maintenance personnel ESD. IC Role / Device Role / Timing Role: Standalone ESD guard on differential bus lines, rated for industrial temperature range (−55°C to 150°C). Use Value: −55°C to 150°C storage/junction range supports extended operation in uncontrolled environments; AEC-Q101 qualification adds reliability confidence. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Single-channel, 5.5 V VRWM, 12 pF capacitance, ±8 kV IEC61000-4-2 rating | Targeted at consumer USB ports; lower ESD rating and higher capacitance limit automotive use | Prefer DF2B29FU,H3F for AEC-Q101-compliant designs requiring ≥±25 kV robustness |
| ESD5Z3.3T5G | 3.3 V VRWM, 15 pF capacitance, ±12 kV IEC61000-4-2, SOD-523 package | Optimized for low-voltage logic rails; insufficient clamp margin for 24 V signal lines | DF2B29FU,H3F provides higher VRWM and tighter VC spec for mixed-voltage automotive interfaces |
Compared with TPD2E001DRYR and ESD5Z3.3T5G, DF2B29FU,H3F delivers superior ESD immunity (±25 kV), lower dynamic resistance (9 Ω vs. >15 Ω), and AEC-Q101 validation-making it the only option qualified for front-end protection in automotive serial link and infotainment data paths.
Availability
DF2B29FU,H3F is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interfaces, and high-speed serial video links requiring stable component supply and long-term lifecycle support.
Supply support for DF2B29FU,H3F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on automotive, industrial, and consumer applications.
DF2B29FU,H3F belongs to Toshiba's AEC-Q101-qualified ESD protection diode product line, engineered specifically for high-reliability transient suppression on automotive data buses and high-speed interfaces.
FAQ
What is the maximum working peak reverse voltage for DF2B29FU,H3F?
The DF2B29FU,H3F has a working peak reverse voltage (VRWM) of 24 V, meaning it can continuously block up to 24 V in reverse bias without exceeding its specified leakage current of 0.1 µA. This rating ensures safe operation on 24 V signal lines or interfaces where transient clamping must not interfere with normal DC bias conditions. The DF2B29FU,H3F maintains this specification across its full operating temperature range.
Is DF2B29FU,H3F qualified for automotive applications?
Yes, DF2B29FU,H3F is AEC-Q101 qualified, confirming its suitability for automotive electronic systems. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and ESD robustness. The DF2B29FU,H3F is explicitly intended for automotive use cases such as infotainment data lines and camera serial links, as noted in Toshiba's orderable part number documentation.
What is the clamp voltage of DF2B29FU,H3F at 3 A peak pulse current?
The DF2B29FU,H3F exhibits a maximum clamp voltage (VC) of 47 V when subjected to a 3 A peak pulse current per IEC61000-4-5 8/20 µs waveform. This value defines the upper voltage limit imposed on the protected circuit during surge events. The DF2B29FU,H3F achieves this with a typical dynamic resistance of 9 Ω, ensuring predictable and repeatable clamping behavior across production lots.
Does DF2B29FU,H3F support bidirectional ESD protection?
Yes, DF2B29FU,H3F is a bidirectional ESD protection diode, providing symmetrical clamping for both positive and negative transients. Its silicon epitaxial planar structure enables equal breakdown and clamp characteristics in either polarity, eliminating the need for orientation-specific placement on PCBs. This feature is essential for protecting AC-coupled or differential signal lines like USB 2.0 or HDMI DDC.
What package type does DF2B29FU,H3F use and what are its dimensions?
DF2B29FU,H3F uses the USC (Ultra Small Chip) package: 1.0 mm × 0.6 mm × 0.35 mm, with two terminals and a typical weight of 4.5 mg. The land pattern follows Toshiba's recommended dimensions in Figure 8.1 of the datasheet. This compact SMD footprint supports high-density layouts in automotive and portable electronics where board space is constrained.
DF2B29FU,H3F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26V
- Voltage - Clamping (Max) @ Ipp:
- 47V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 140W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 9pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- USC
DF2B29FU,H3F FAQ
1.How can I place an order for DF2B29FU,H3F through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2B29FU,H3F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DF2B29FU,H3F reliable?
The price and inventory of DF2B29FU,H3F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2B29FU,H3F is usually 5 days.
3.What payment methods are accepted for DF2B29FU,H3F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2B29FU,H3F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2B29FU,H3F?
DF2B29FU,H3F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2B29FU,H3F order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DF2B29FU,H3F?
For technical support, including DF2B29FU,H3F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2B29FU,H3F requirements.
6.How does Aetrix verify that DF2B29FU,H3F is sourced from the original manufacturer or authorized distributors?
All DF2B29FU,H3F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DF2B29FU,H3F meets industry standards.
7.What is the process for return or replacement of DF2B29FU,H3F?
All DF2B29FU,H3F units undergo pre-shipment inspection (PSI). If there is an issue with DF2B29FU,H3F, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DF2B29FU,H3F part is unused and in its original packaging.
Return procedure for DF2B29FU,H3F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF2B29FU,H3F Tags
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