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Toshiba Semiconductor and Storage DF2S7MSL,L3F
- Part No.:
- DF2S7MSL,L3F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
DF2S7MSL,L3F.pdf
- Description:
- TVS DIODE 5VWM 20VC SL2
- Quantity:
- Payment:
- Shipping:
Inventory:12,991
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Product details
Overview
DF2S7MSL,L3F from Toshiba Electronic Devices & Storage Corporation is a bidirectional ESD protection diode in an ultra-small SL2 (1-1AL1A) package, rated for ±12 kV IEC61000-4-2 contact discharge, 60 W peak pulse power, and 3 A peak pulse current. It provides low dynamic resistance (0.35 Ω typ.) and low capacitance (0.5 pF typ.) for high-speed data line protection in USB 2.0, HDMI, and audio interfaces.
For engineers reviewing the DF2S7MSL,L3F datasheet, DF2S7MSL,L3F pinout, DF2S7MSL,L3F application, or DF2S7MSL,L3F equivalent, key selection criteria include clamping voltage at 1 A (9.5 V typ.), working peak reverse voltage (5 V max), reverse breakdown voltage (6.0 V min), total capacitance (0.5 pF typ.), and SL2 land pattern compatibility with high-density PCB layouts.
Technical Context
The DF2S7MSL,L3F employs silicon epitaxial planar technology to achieve fast transient response and stable clamping behavior under IEC61000-4-2 and IEC61000-4-5 surge conditions. Its bidirectional structure enables symmetric protection on AC-coupled or differential signal lines without polarity constraints.
Designed specifically for ESD suppression-not voltage regulation-the device operates within a junction temperature range of –55 °C to 150 °C and features guaranteed dynamic resistance extraction via TLP testing (8–16 A range) and 1 MHz capacitance measurement at 0 V bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC61000-4-2) | ±12 kV contact - meets industrial-grade ESD immunity requirements for exposed ports |
| Clamp Voltage (IPP = 1 A) | 9.5 V typ. - limits voltage overshoot to protect downstream 3.3 V or 5 V ICs |
| Working Peak Reverse Voltage | 5 V max - compatible with USB 2.0, SPDIF, and other 3.3 V/5 V signal lines |
| Total Capacitance | 0.5 pF typ. at 0 V, 1 MHz - preserves signal integrity up to ~500 MHz |
| Dynamic Resistance | 0.35 Ω typ. - ensures low-voltage drop during ESD events for precise clamping |
| Peak Pulse Power | 60 W (8/20 µs) - sustains single-event surges without degradation |
| Package | SL2 (1-1AL1A), 0.2 mg weight - supports 0201-class board space and automated placement |
Pinout & Package
DF2S7MSL,L3F uses the SL2 surface-mount package (TOSHIBA designation: 1-1AL1A), a 2-terminal, bidirectional monolithic ESD suppressor with no internal polarity marking. The device has no active control pins-both terminals serve as symmetrical ESD shunt paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Shared ESD path - connects to protected signal line; no polarity assignment required |
| Terminal 2 | Anode/Cathode (bidirectional) | Shared ESD path - connects to ground or reference plane; completes low-inductance shunt loop |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD clamping | Enables protection of AC-coupled or differential pairs (e.g., USB D+/D−) without orientation sensitivity |
| Ultra-low 0.5 pF capacitance | Minimizes insertion loss and signal distortion on high-speed digital interfaces up to 480 Mbps |
| 0.35 Ω dynamic resistance | Reduces clamping voltage overshoot under fast-rising ESD transients (≤1 ns rise time) |
| ±12 kV IEC61000-4-2 rating | Exceeds Level 4 immunity requirement for consumer and industrial end-equipment certification |
| SL2 package footprint | 0.6 × 0.3 × 0.23 mm outline - fits tight-pitch layouts and reduces parasitic inductance vs. larger packages |
Applications
| USB 2.0 Data Lines | HDMI TMDS Channels |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 peripherals against user-handling ESD events. IC Role / Device Role: Bidirectional shunt clamp placed between signal line and ground, operating below 5 V working voltage. Use Value: 9.5 V clamping at 1 A prevents damage to USB transceivers while maintaining <0.5 pF loading for 480 Mbps signaling. |
Use Scenario: Safeguarding HDMI TMDS clock and data channels from contact discharge during cable insertion. IC Role / Device Role: Low-capacitance ESD suppressor mounted directly at HDMI connector pads. Use Value: 0.5 pF capacitance avoids signal integrity degradation at 2.25 Gbps; ±12 kV rating satisfies IEC compliance for CE-marked AV equipment. |
| Smartphone Audio Jacks | Industrial Sensor Interfaces |
Use Scenario: ESD protection for 3.5 mm audio jack MIC and HP_L/HP_R lines exposed to frequent plugging/unplugging. IC Role / Device Role: Dual-line protection using two DF2S7MSL,L3F devices per jack (one per signal path). Use Value: Sub-1 V forward voltage and 0.35 Ω dynamic resistance ensure minimal DC offset and fast clamping response during ±8 kV contact discharge. |
Use Scenario: Shielding analog sensor outputs (e.g., 4–20 mA current loop or thermocouple amplifiers) from field-induced ESD in factory environments. IC Role / Device Role: Signal-line-to-ground shunt suppressor placed at I/O connector entry point. Use Value: 150 °C max junction temperature and –55 °C min storage rating support operation in extended industrial temperature ranges without derating. |
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 | Higher capacitance (1.0 pF typ.), same ±12 kV rating, 10.5 V clamping at 1 A | Better suited for lower-speed analog lines where capacitance >0.5 pF is acceptable | Select when board layout allows slightly higher signal loading and cost is prioritized over ultra-low Ct |
| Vishay VEML5090 | Unidirectional configuration, 5.5 V working voltage, 0.3 pF capacitance, ±8 kV rating | Requires correct polarity placement; limited to DC-biased or single-ended signals | Choose only for unidirectional signal paths with strict <0.3 pF requirement and lower ESD threat level |
Compared with ESDBL5.0D1W and VEML5090, DF2S7MSL,L3F uniquely balances ultra-low capacitance (0.5 pF), bidirectional operation, and full ±12 kV IEC61000-4-2 compliance in the smallest SL2 footprint-making it optimal for space-constrained, high-speed, polarity-agnostic ESD protection.
Availability
DF2S7MSL,L3F is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI TMDS channel safeguarding, and smartphone audio jack ESD hardening requiring stable component supply across production ramps and long-lifecycle designs.
Supply support for DF2S7MSL,L3F 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 DF2S7MSL,L3F belongs to Toshiba's ESD protection diode family engineered for ultra-compact, high-fidelity signal line protection in portable and high-speed consumer electronics-prioritizing low capacitance, fast response, and robust IEC-compliant clamping.
FAQ
What is the maximum working voltage supported by DF2S7MSL,L3F?
The DF2S7MSL,L3F has a maximum working peak reverse voltage (VRWM) of 5 V, making it suitable for protecting 3.3 V and 5 V signal lines such as USB 2.0 D+/D−, SPDIF, and I²S interfaces. Exceeding this voltage risks premature conduction and reduced ESD margin. Always verify system DC bias levels before integrating DF2S7MSL,L3F into new designs.
Does DF2S7MSL,L3F require polarity-aware placement on the PCB?
No-DF2S7MSL,L3F is a bidirectional ESD suppressor with symmetrical terminal characteristics. Both terminals function identically as shunt paths to ground, eliminating orientation constraints during placement. This simplifies layout and assembly for differential or AC-coupled signal lines like HDMI TMDS or USB 2.0.
How does the 0.5 pF capacitance of DF2S7MSL,L3F impact high-speed signal integrity?
The 0.5 pF typical capacitance of DF2S7MSL,L3F introduces negligible loading on signals up to 500 MHz, preserving eye diagram margins for USB 2.0 (480 Mbps) and audio interfaces. Measured S21 insertion loss remains below –0.5 dB up to 1 GHz, confirming minimal high-frequency attenuation-critical for maintaining timing margins in compact portable designs.
Can DF2S7MSL,L3F be used for IEC61000-4-5 surge protection?
DF2S7MSL,L3F is rated for 60 W peak pulse power under IEC61000-4-5 8/20 µs waveform conditions, supporting limited surge handling in conjunction with primary protection stages. However, it is not intended as a standalone surge protector-use with upstream TVS or GDT devices for full-system 4-5 compliance in industrial or telecom applications.
What is the thermal limit for continuous operation of DF2S7MSL,L3F?
DF2S7MSL,L3F supports continuous operation from –55 °C to +150 °C junction temperature. Its 0.2 mg SL2 package exhibits low thermal mass, but sustained high ambient temperatures (>105 °C) require careful PCB copper pour design and derating per Toshiba's Reliability Handbook. No DC power dissipation rating applies-it is not designed for steady-state current flow.
DF2S7MSL,L3F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- 2-SMD, No Lead
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 20V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 60W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.5pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SL2
DF2S7MSL,L3F FAQ
1.How can I place an order for DF2S7MSL,L3F through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2S7MSL,L3F 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 DF2S7MSL,L3F reliable?
The price and inventory of DF2S7MSL,L3F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2S7MSL,L3F is usually 5 days.
3.What payment methods are accepted for DF2S7MSL,L3F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2S7MSL,L3F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2S7MSL,L3F?
DF2S7MSL,L3F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2S7MSL,L3F 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 DF2S7MSL,L3F?
For technical support, including DF2S7MSL,L3F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2S7MSL,L3F requirements.
6.How does Aetrix verify that DF2S7MSL,L3F is sourced from the original manufacturer or authorized distributors?
All DF2S7MSL,L3F 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 DF2S7MSL,L3F meets industry standards.
7.What is the process for return or replacement of DF2S7MSL,L3F?
All DF2S7MSL,L3F units undergo pre-shipment inspection (PSI). If there is an issue with DF2S7MSL,L3F, 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 DF2S7MSL,L3F part is unused and in its original packaging.
Return procedure for DF2S7MSL,L3F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF2S7MSL,L3F Tags
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