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Toshiba Semiconductor and Storage DF3A6.2F(TE85L,F)
- Part No.:
- DF3A6.2F(TE85L,F)
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DF3A6.2F(TE85L,F).pdf
- Description:
- TVS DIODE 3VWM SMINI
- Quantity:
- Payment:
- Shipping:
Inventory:5,985
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Product details
Overview
DF3A6.2F(TE85L,F) from Toshiba is a dual-channel ESD protection diode array designed for high-speed data lines, featuring 6.2 V Zener voltage (IZ = 5 mA), ±30 kV IEC61000-4-2 contact discharge immunity, and 55 pF terminal capacitance at 0 V/1 MHz - deployed in USB 2.0, HDMI, and audio interface protection.
For engineers reviewing the DF3A6.2F(TE85L,F) datasheet, DF3A6.2F(TE85L,F) pinout, DF3A6.2F(TE85L,F) application, or DF3A6.2F(TE85L,F) equivalent, key selection criteria include ESD clamping voltage, low capacitance for signal integrity, dual-cathode configuration, and compliance with IEC61000-4-2 Level 4.
Technical Context
This device implements two independent Zener-based ESD clamps in a single SOT-323 (SC-70) package, each with cathode-anode polarity optimized for bidirectional transient suppression on I/O lines. It operates exclusively as a transient voltage suppressor - not a voltage regulator - with no DC biasing capability beyond ESD event clamping.
The 55 pF capacitance (VR = 0 V, f = 1 MHz) and 30 Ω dynamic impedance (IZ = 5 mA) define its high-frequency response and clamping efficiency, while the ±30 kV contact discharge rating confirms robustness against human-body-model ESD events per IEC61000-4-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener voltage | 6.2 V (typ.) at 5 mA - sets clamping threshold for ESD transients on protected lines |
| ESD immunity | ±30 kV contact discharge (IEC61000-4-2) - ensures survival under worst-case human-hand ESD events |
| Terminal capacitance | 55 pF at 0 V/1 MHz - enables use on USB 2.0 (480 Mbps) and audio interfaces without signal distortion |
| Dynamic impedance | ≤30 Ω at 5 mA - maintains low clamping voltage during fast ESD pulses |
| Power dissipation | 150 mW (on 20 mm × 20 mm PCB, 4 mm × 4 mm pads) - defines thermal derating limits in compact layouts |
| Junction temperature | 150 °C max - constrains continuous ambient operating range when mounted per JEDEC-standard footprint |
Pinout & Package
DF3A6.2F(TE85L,F) uses the SOT-323 (SC-70) surface-mount package (TOSHIBA designation: 1-3G1E), measuring 2.2 mm × 2.1 mm × 1.0 mm, with three terminals: Cathode 1, Cathode 2, and shared Anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode 1) | ESD clamp cathode for Channel 1 | Connects to first protected signal line (e.g., USB D+); conducts during positive transients |
| 2 (Cathode 2) | ESD clamp cathode for Channel 2 | Connects to second protected signal line (e.g., USB D−); independent clamping path |
| 3 (Anode) | Common anode node | Shared ground reference for both Zener clamps; must connect to low-impedance system ground |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel ESD protection | Two independent 6.2 V Zener clamps in one SC-70 package - reduces board area and assembly cost vs. discrete diodes |
| Ultra-low terminal capacitance | 55 pF typical - preserves signal integrity on high-speed interfaces up to 480 Mbps without added jitter or attenuation |
| High-level IEC61000-4-2 immunity | ±30 kV contact discharge - exceeds industrial and consumer ESD requirements without external circuitry |
| Low dynamic impedance | ≤30 Ω - minimizes voltage overshoot during 0.7–1 ns ESD rise-time events |
Applications
| USB 2.0 Interface Protection | HDMI DDC Line Protection |
|---|---|
Use Scenario: Protecting differential USB 2.0 data lines (D+, D−) from user-hand ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 55 pF capacitance avoids signal degradation at 480 Mbps; ±30 kV rating prevents latch-up or failure during real-world handling. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines (SCL/SDA) against ESD in AV receivers and monitors. IC Role / Device Role / Timing Role: Low-capacitance Zener clamp on 5 V-tolerant I²C bus lines operating at ≤100 kHz. Use Value: 6.2 V clamping voltage aligns with HDMI DDC logic-high margin; dual-cathode layout matches differential pair routing. |
| Smartphone Audio Jack ESD Protection | Industrial Sensor Interface Protection |
Use Scenario: Shielding 3.5 mm TRRS audio jack contacts (MIC, L/R, GND) from repeated ESD exposure in handheld devices. IC Role / Device Role / Timing Role: Compact dual-clamp suppressing transients on analog microphone and stereo output paths. Use Value: SOT-323 footprint fits tight space behind jack; 55 pF ensures no audible pop or distortion in 20 Hz–20 kHz audio band. | Use Scenario: Protecting RS-485 or CAN FD transceiver I/O pins in factory automation controllers exposed to maintenance personnel ESD. IC Role / Device Role / Timing Role: Pre-transceiver ESD guard element on differential bus lines operating at ≤12 Mbps. Use Value: 30 Ω dynamic impedance limits clamping overshoot below receiver input thresholds; ±30 kV rating covers harsh industrial environments. |
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 clamping, 12 pF capacitance, SOT-553 package | Lower capacitance but only one channel; requires two devices for dual-line protection | Preferred when ultra-low capacitance (<15 pF) is critical and board space allows duplication |
| ESD9B5.0ST5G | Single-channel, 5.0 V clamping, 30 pF capacitance, SOT-523 package | Lower clamping voltage and smaller footprint, but lacks dual-channel integration | Chosen for cost-sensitive designs where separate placement of two units is acceptable |
Compared with TPD2E001DRYR and ESD9B5.0ST5G, DF3A6.2F(TE85L,F) delivers integrated dual-channel protection at 6.2 V with moderate 55 pF capacitance - optimizing board area and assembly cost for USB/audio interfaces where sub-15 pF is not mandatory.
Availability
DF3A6.2F(TE85L,F) is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC line safeguarding, and smartphone audio jack ESD mitigation requiring stable component supply across production lifecycles.
Supply support for DF3A6.2F(TE85L,F) 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.
DF3A6.2F(TE85L,F) belongs to Toshiba's DF series of ultra-compact ESD protection diodes, engineered specifically for high-density portable electronics where board space, signal fidelity, and IEC-compliant transient immunity are co-constrained design priorities.
FAQ
What is the primary function of DF3A6.2F(TE85L,F)?
DF3A6.2F(TE85L,F) is a dual-channel Zener-type ESD protection diode array designed solely for electrostatic discharge suppression on high-speed signal lines. It is not rated for continuous voltage regulation or power dissipation beyond transient events. Its 6.2 V Zener voltage and ±30 kV IEC61000-4-2 rating confirm its role as a dedicated ESD clamp - not a general-purpose diode - and operation outside ESD protection is explicitly prohibited per Toshiba documentation.
Does DF3A6.2F(TE85L,F) support bidirectional ESD protection?
Yes, DF3A6.2F(TE85L,F) provides bidirectional ESD protection via its dual-cathode architecture: Pin 1 and Pin 2 serve as independent cathodes, while Pin 3 is the common anode tied to ground. During a positive transient on either protected line, current flows from cathode to anode; during a negative transient, the internal junction blocks conduction until breakdown occurs in reverse - enabling clamping for both polarities without external components.
What is the maximum allowable capacitance for DF3A6.2F(TE85L,F) in high-speed applications?
The terminal capacitance of DF3A6.2F(TE85L,F) is specified as 55 pF typical (at VR = 0 V, f = 1 MHz), with no upper limit stated. This value has been validated for reliable operation on USB 2.0 (480 Mbps) and audio interfaces, where signal integrity remains intact. Designs targeting >1 Gbps interfaces (e.g., USB 3.0) require lower capacitance and are not supported by DF3A6.2F(TE85L,F).
Can DF3A6.2F(TE85L,F) be used as a Zener voltage regulator?
No. DF3A6.2F(TE85L,F) is explicitly designated by Toshiba for ESD protection only and must not be used as a constant-voltage diode or voltage regulator. Its Absolute Maximum Ratings and Electrical Characteristics are defined strictly for transient suppression - not steady-state DC operation. Using DF3A6.2F(TE85L,F) for voltage regulation violates its intended function and may result in premature failure or noncompliance with safety specifications.
What package type does DF3A6.2F(TE85L,F) use and what are its dimensions?
DF3A6.2F(TE85L,F) uses the SOT-323 (SC-70) package, designated by Toshiba as 1-3G1E. Its mechanical dimensions are 2.2 mm × 2.1 mm × 1.0 mm, with a typical weight of 12 mg. The package features gull-wing leads compatible with standard reflow soldering processes and is optimized for automated pick-and-place assembly in high-density PCB layouts.
DF3A6.2F(TE85L,F) Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3V
- Voltage - Breakdown (Min):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 55pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- S-Mini
DF3A6.2F(TE85L,F) FAQ
1.How can I place an order for DF3A6.2F(TE85L,F) through Aetrix?
Please submit a Request for Quotation (RFQ) for DF3A6.2F(TE85L,F) 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 DF3A6.2F(TE85L,F) reliable?
The price and inventory of DF3A6.2F(TE85L,F) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF3A6.2F(TE85L,F) is usually 5 days.
3.What payment methods are accepted for DF3A6.2F(TE85L,F)?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF3A6.2F(TE85L,F) transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF3A6.2F(TE85L,F)?
DF3A6.2F(TE85L,F) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF3A6.2F(TE85L,F) 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 DF3A6.2F(TE85L,F)?
For technical support, including DF3A6.2F(TE85L,F) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF3A6.2F(TE85L,F) requirements.
6.How does Aetrix verify that DF3A6.2F(TE85L,F) is sourced from the original manufacturer or authorized distributors?
All DF3A6.2F(TE85L,F) 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 DF3A6.2F(TE85L,F) meets industry standards.
7.What is the process for return or replacement of DF3A6.2F(TE85L,F)?
All DF3A6.2F(TE85L,F) units undergo pre-shipment inspection (PSI). If there is an issue with DF3A6.2F(TE85L,F), 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 DF3A6.2F(TE85L,F) part is unused and in its original packaging.
Return procedure for DF3A6.2F(TE85L,F):
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF3A6.2F(TE85L,F) Tags
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D12V0L1B2LP-7B
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