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Toshiba Semiconductor and Storage DF5A6.2LFUTE85LF
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- Part No.:
- DF5A6.2LFUTE85LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
DF5A6.2LFUTE85LF.pdf
- Description:
- TVS DIODE 5VWM USV
- Quantity:
- Payment:
- Shipping:
Inventory:1,313
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Product details
Overview
DF5A6.2LFUTE85LF from Toshiba is a quad-channel ESD protection diode array designed for high-speed data lines, featuring 6.2 V nominal Zener voltage, 6.5 pF typical terminal capacitance, ±8 kV IEC61000-4-2 contact discharge immunity, and ultra-compact 1-2V1B package. It serves as transient voltage suppression at I/O interfaces in portable electronics.
For engineers reviewing the DF5A6.2LFUTE85LF datasheet, DF5A6.2LFUTE85LF pinout, DF5A6.2LFUTE85LF application, or DF5A6.2LFUTE85LF equivalent, key selection criteria include low-capacitance ESD clamping for USB 2.0/ HDMI/ SD card lines, guaranteed ±8 kV ESD robustness, and quad-cathode architecture enabling space-efficient multi-line protection without discrete devices.
Technical Context
This device implements four independent Zener-based ESD clamps in a single monolithic silicon die, each with cathode-anode junction optimized for fast response (<1 ns) to electrostatic transients. Its low 6.5 pF inter-terminal capacitance ensures minimal signal integrity impact on high-frequency interfaces up to 480 Mbps.
The DF5A6.2LFUTE85LF operates strictly as a transient suppressor - not a voltage regulator - with Zener voltage specified at 5.9–6.5 V (IZ = 5 mA), dynamic impedance ≤50 Ω, and reverse leakage ≤2.5 μA at 5 V. It is rated for 200 mW power dissipation and 125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage | 5.9–6.5 V at 5 mA: defines clamping threshold for ESD events on protected lines |
| Terminal capacitance | 6.5 pF typ. at 0 V, 1 MHz: enables use on USB 2.0 and SDIO interfaces without signal degradation |
| ESD immunity | ±8 kV per IEC61000-4-2 contact discharge: meets industrial and consumer system-level ESD requirements |
| Power dissipation | 200 mW: supports short-duration ESD pulse energy absorption without thermal failure |
| Junction temperature | 125°C max: allows operation in compact handheld enclosures with limited airflow |
| Reverse leakage | ≤2.5 μA at 5 V: ensures negligible standby current draw in battery-powered systems |
Pinout & Package
Package: Ultra-compact surface-mount 1-2V1B (JEDEC TO-236AB equivalent), 5-pin SOT-353 variant with exposed pad for thermal enhancement; dimensions 2.0 × 1.25 × 0.9 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | ESD clamp anode connection point for first protected line (e.g., USB D+) |
| 2 | Anode | Common anode tied to ground plane; all four clamps share this reference |
| 3 | Cathode 2 | ESD clamp anode connection for second protected line (e.g., USB D−) |
| 4 | Cathode 3 | ESD clamp anode connection for third protected line (e.g., SDIO CMD) |
| 5 | Cathode 4 | ESD clamp anode connection for fourth protected line (e.g., SDIO CLK) |
Key Features
| Feature | Design Value |
|---|---|
| Quad-channel integration | Four independent ESD clamps in one 2.0 × 1.25 mm package reduces PCB area by >70% vs. discrete diodes |
| Low signal-path capacitance | 6.5 pF typ. between cathode and anode preserves rise time and eye diagram integrity on 480 Mbps links |
| Guaranteed ±8 kV ESD rating | Validated per IEC61000-4-2 contact discharge - no derating required for standard compliance testing |
| Ground-referenced common-anode topology | Enables simple layout with single ground pour under device; eliminates need for individual anode routing |
Applications
| USB 2.0 Interface Protection | SD Card Slot ESD Suppression |
|---|---|
Use Scenario: Protecting differential data lines (D+, D−) of USB 2.0 ports in smartphones and tablets against user-handling ESD events. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping fast-rising ESD pulses before they reach the USB PHY IC. Use Value: 6.5 pF capacitance prevents signal distortion at 480 Mbps; ±8 kV rating satisfies IEC 61000-4-2 system-level test requirements. | Use Scenario: Shielding SDIO command, clock, and data lines in embedded SD card readers used in POS terminals and IoT gateways. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp placed directly at SD card connector pins to shunt transients to ground. Use Value: Quad configuration protects four critical SDIO signals (CMD, CLK, DAT0–DAT3) with one device, reducing BOM count and layout complexity. |
| HDMI DDC Channel Protection | Industrial Sensor Interface Guarding |
Use Scenario: Safeguarding HDMI DDC (I²C) lines (SCL/SDA) in display controllers and media boxes from ESD during cable insertion. IC Role / Device Role / Timing Role: Bidirectional ESD clamp operating within I²C voltage range (0–3.3 V), leveraging Zener breakdown symmetry. Use Value: 6.2 V nominal Zener voltage provides safe margin above 3.3 V logic while maintaining low leakage (<2.5 μA) to avoid bus contention. | Use Scenario: Protecting analog sensor inputs (e.g., thermistor, RTD, or bridge outputs) in factory automation modules exposed to maintenance personnel ESD. IC Role / Device Role / Timing Role: High-impedance ESD shunt placed at front-end connector to prevent latch-up or damage to precision ADC input stages. Use Value: 200 mW power rating handles multiple ESD strikes; 125°C junction rating supports operation in sealed industrial enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor ESDBL5.0D1W | Single-channel, 5.0 V VZ, 0.5 pF CT, SOD-323 package | Lower capacitance but requires four separate placements; lacks integrated quad architecture | Select when ultra-low capacitance (<1 pF) is mandatory and board space permits discrete layout |
| Vishay VEML6040X01 | Not applicable - optical ambient light sensor, unrelated function | N/A - incorrect product category | Avoid: misidentified part; not an ESD protection device |
Compared with DF5A6.2LFUTE85LF, ESDBL5.0D1W offers lower capacitance but increases component count and layout effort; no valid alternative matches its quad-channel + 6.5 pF + ±8 kV combination in identical form factor - making DF5A6.2LFUTE85LF uniquely suited for space-constrained multi-line I/O protection.
Availability
DF5A6.2LFUTE85LF is available at Aetrix Electronics and suitable for USB 2.0 interface protection, SD card slot ESD suppression, and HDMI DDC channel guarding requiring stable component supply across high-volume consumer and industrial production programs.
Supply support for DF5A6.2LFUTE85LF 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 reliability, miniaturization, and application-specific performance.
The DF5A6.2LFUTE85LF belongs to Toshiba's DF5 series of ultra-low-capacitance ESD protection arrays, engineered specifically for high-speed digital interfaces in portable and space-constrained electronics.
FAQ
What is the primary function of the DF5A6.2LFUTE85LF?
The DF5A6.2LFUTE85LF is a quad-channel ESD protection diode array designed exclusively for transient suppression on high-speed data lines. It is not intended for voltage regulation or continuous power dissipation. Its Zener-based clamping action responds to electrostatic discharge events with ±8 kV IEC61000-4-2 immunity, and it must be used only in accordance with Toshiba's stated restrictions on ESD-only applications.
Does the DF5A6.2LFUTE85LF support bidirectional signal lines like USB D+ and D−?
Yes, the DF5A6.2LFUTE85LF supports bidirectional data lines via its common-anode configuration: pins 1, 3, 4, and 5 serve as cathodes connected to protected signal lines, while pin 2 is the shared anode tied to ground. This arrangement allows symmetrical clamping of both positive and negative ESD transients on each line, making DF5A6.2LFUTE85LF suitable for USB 2.0 differential pairs and other bidirectional interfaces.
What is the significance of the 6.5 pF terminal capacitance in DF5A6.2LFUTE85LF?
The 6.5 pF typical terminal capacitance (measured between cathode and anode at 0 V, 1 MHz) ensures minimal loading on high-speed signals - enabling DF5A6.2LFUTE85LF to be used on USB 2.0 (480 Mbps), SDIO, and HDMI DDC lines without degrading signal rise time or eye opening. This value balances ESD robustness with signal integrity, distinguishing DF5A6.2LFUTE85LF from higher-capacitance protectors unsuitable for such interfaces.
Can DF5A6.2LFUTE85LF replace a standard Zener diode in voltage regulation circuits?
No, DF5A6.2LFUTE85LF is explicitly restricted to ESD protection only and must not be used as a constant-voltage reference or regulator. Toshiba's documentation states it is "not intended for any other usage, including without limitation, the constant voltage diode application." Using DF5A6.2LFUTE85LF outside its specified ESD-suppression role violates design intent and may result in premature failure or unreliable performance.
Is DF5A6.2LFUTE85LF RoHS compliant and lead-free?
Yes, DF5A6.2LFUTE85LF is RoHS compliant and lead-free, consistent with Toshiba's environmental policy and the EU Directive 2011/65/EU. The device uses matte tin plating on external terminals and conforms to JEDEC J-STD-020 moisture sensitivity level (MSL) 1. Full compliance documentation, including substance declarations and test reports, is available through Toshiba's official channels and Aetrix Electronics' quality portal.
DF5A6.2LFUTE85LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 5.9V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 6.5pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- USV
DF5A6.2LFUTE85LF FAQ
1.How can I place an order for DF5A6.2LFUTE85LF through Aetrix?
Please submit a Request for Quotation (RFQ) for DF5A6.2LFUTE85LF 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 DF5A6.2LFUTE85LF reliable?
The price and inventory of DF5A6.2LFUTE85LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF5A6.2LFUTE85LF is usually 5 days.
3.What payment methods are accepted for DF5A6.2LFUTE85LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF5A6.2LFUTE85LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF5A6.2LFUTE85LF?
DF5A6.2LFUTE85LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF5A6.2LFUTE85LF 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 DF5A6.2LFUTE85LF?
For technical support, including DF5A6.2LFUTE85LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF5A6.2LFUTE85LF requirements.
6.How does Aetrix verify that DF5A6.2LFUTE85LF is sourced from the original manufacturer or authorized distributors?
All DF5A6.2LFUTE85LF 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 DF5A6.2LFUTE85LF meets industry standards.
7.What is the process for return or replacement of DF5A6.2LFUTE85LF?
All DF5A6.2LFUTE85LF units undergo pre-shipment inspection (PSI). If there is an issue with DF5A6.2LFUTE85LF, 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 DF5A6.2LFUTE85LF part is unused and in its original packaging.
Return procedure for DF5A6.2LFUTE85LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF5A6.2LFUTE85LF Tags
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DESD3V3E1BL-7B
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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