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Toshiba Semiconductor and Storage DF2S24FS,L3M
- Part No.:
- DF2S24FS,L3M
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
DF2S24FS,L3M.pdf
- Description:
- TVS DIODE 19VWM SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:44,023
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Product details
Overview
DF2S24FS,L3M from Toshiba Electronic Devices & Storage Corporation is an ESD protection diode designed for high-speed data lines, featuring ±10 kV IEC61000-4-2 contact discharge immunity, 24 V Zener voltage (typ.), 19 V working peak reverse voltage, 70 Ω dynamic impedance (max), and 0.5 pF total capacitance - deployed in USB 2.0, HDMI, and audio interface protection.
For engineers reviewing the DF2S24FS,L3M datasheet, DF2S24FS,L3M pinout, DF2S24FS,L3M application, or DF2S24FS,L3M equivalent, key selection criteria include low clamping voltage under ESD stress, sub-1 pF capacitance for signal integrity, SOD-923/fSC ultra-small footprint compatibility, and guaranteed ±10 kV ESD robustness without functional degradation.
Technical Context
This bidirectional ESD protection diode uses silicon epitaxial planar construction to deliver symmetrical clamping behavior for both positive and negative transients. Its low 0.5 pF capacitance at 0 V enables minimal signal distortion on high-frequency interfaces up to 480 Mbps.
The device operates with a 24.0 V typical Zener voltage and clamps transient energy at ≤25.6 V (max) under 5 mA test current, while maintaining <0.5 µA reverse leakage at 19 V - ensuring low standby power impact and stable DC bias conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC61000-4-2) | ±10 kV contact discharge - guarantees no device damage or parameter shift after standardized ESD events |
| Zener Voltage (VZ) | 24.0 V (typ.) - defines precise clamping threshold for overvoltage transients |
| Working Peak Reverse Voltage (VRWM) | 19 V - maximum continuous DC or AC peak voltage before leakage exceeds 0.5 µA |
| Total Capacitance (Ct) | 0.5 pF at 0 V, 1 MHz - preserves signal integrity on USB 2.0 and high-speed serial links |
| Dynamic Impedance (ZZ) | 8.5 Ω (typ.) - ensures low-voltage clamping during fast ESD pulses (tR = 0.7–1 ns) |
| Junction Temperature Range | −55 °C to +150 °C - supports operation in automotive cabin and industrial ambient environments |
Pinout & Package
SOD-923 and fSC are identical 2-pin ultra-small surface-mount packages (0.6 × 0.3 × 0.3 mm, 0.55 mg typ.), both rated for reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected line; conducts during positive ESD event to ground |
| 2 | Anode | Connected to ground; completes conduction path during negative ESD event |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity constraints |
| Ultra-low 0.5 pF capacitance | Minimizes insertion loss and reflection on 480 Mbps USB 2.0 and 1.65 Gbps HDMI 1.4a channels |
| ±10 kV IEC61000-4-2 compliance | Meets international ESD immunity standard for end-equipment certification (e.g., EN 55032) |
| 19 V working reverse voltage | Supports direct placement on 18 V nominal supply rails or 3.3/5 V data lines with margin |
Applications
| USB 2.0 Interface Protection | HDMI Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− pins of USB 2.0 ports against user-handling ESD events in portable electronics. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 0.5 pF capacitance prevents signal rise-time degradation; ±10 kV rating ensures pass/fail compliance in IEC61000-4-2 pre-compliance testing. | Use Scenario: Safeguarding TMDS clock and data pairs in HDMI 1.4a source devices (e.g., set-top boxes, media players). IC Role / Device Role / Timing Role: Low-capacitance ESD clamp between each TMDS channel and chassis ground. Use Value: Clamps transients below 25.6 V while adding <0.1 dB insertion loss at 1.65 GHz - preserving eye diagram integrity. |
| Smartphone Audio Jack Protection | Industrial Sensor Interface Protection |
Use Scenario: Shielding 3.5 mm TRRS microphone and headset lines from ESD during plug insertion/removal. IC Role / Device Role / Timing Role: Dual-line ESD suppressor mounted adjacent to jack PCB footprint. Use Value: 19 V VRWM accommodates 3.3 V bias rails; 0.55 mg weight avoids mechanical stress on fine-pitch jack solder joints. | Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loop) in factory-floor sensors exposed to maintenance personnel ESD. IC Role / Device Role / Timing Role: Standoff protector between sensor output driver and field wiring terminal block. Use Value: −55 °C to +150 °C operating range survives unheated enclosures; ±10 kV rating exceeds IEC61000-4-2 Level 4 requirements. |
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 NZQ2401DT5G | 0.65 pF capacitance, 24 V VZ, SOD-923 package, ±15 kV ESD rating | Higher ESD rating but higher capacitance - less suitable for >480 Mbps interfaces | Preferred where ESD margin >10 kV is mandated and bandwidth ≤100 Mbps |
| Vishay ESDBL5V0D1W | 0.35 pF capacitance, 5.0 V VRWM, SOD-923, ±12 kV ESD rating | Lower VRWM limits use to 3.3 V or lower logic; unsuitable for 19 V rail protection | Select only for low-voltage digital I/O (e.g., GPIO, SD card) with strict <0.4 pF requirement |
Compared with NZQ2401DT5G and ESDBL5V0D1W, the DF2S24FS,L3M uniquely balances 19 V VRWM, 0.5 pF capacitance, and ±10 kV ESD immunity - making it optimal for mid-voltage, high-speed data line protection where both signal fidelity and robustness are required.
Availability
DF2S24FS,L3M is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI data line safeguarding, and smartphone audio jack ESD suppression requiring stable component supply across consumer, industrial, and computing product lifecycles.
Supply support for DF2S24FS,L3M 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 DF2S24FS,L3M belongs to Toshiba's ESD protection diode family engineered for ultra-low capacitance and high ESD immunity in space-constrained portable and interface applications.
FAQ
What is the primary function of the DF2S24FS,L3M?
The DF2S24FS,L3M is a bidirectional ESD protection diode designed exclusively to suppress electrostatic discharge transients on high-speed signal lines. It clamps voltages above 24 V (typ.) during ±10 kV IEC61000-4-2 contact discharges while maintaining 0.5 pF capacitance - ensuring signal integrity without voltage regulation capability.
Does the DF2S24FS,L3M support unidirectional or bidirectional ESD protection?
The DF2S24FS,L3M provides bidirectional ESD protection due to its symmetrical silicon epitaxial planar structure. Pin 1 (cathode) and Pin 2 (anode) form a back-to-back configuration, enabling clamping of both positive and negative transients - essential for AC-coupled interfaces like USB D+/D− and HDMI TMDS pairs.
What is the maximum working voltage the DF2S24FS,L3M can withstand continuously?
The DF2S24FS,L3M has a working peak reverse voltage (VRWM) of 19 V, meaning it sustains continuous reverse-bias operation up to this voltage with reverse current limited to ≤0.5 µA at 25 °C. Exceeding 19 V risks increased leakage or premature breakdown outside specified electrical characteristics.
Is the DF2S24FS,L3M compatible with lead-free reflow soldering processes?
Yes, the DF2S24FS,L3M in SOD-923 and fSC packages complies with JEDEC J-STD-020 moisture sensitivity level (MSL) 1 and supports standard lead-free reflow profiles (peak temperature ≤260 °C). Its 0.55 mg typical weight and 0.6 × 0.3 mm footprint are validated for automated placement and thermal cycling reliability.
Can the DF2S24FS,L3M be used for overvoltage protection beyond ESD events?
No - the DF2S24FS,L3M is explicitly designed and characterized only for ESD transient suppression per IEC61000-4-2. Toshiba documentation states it is "not intended for any other purpose, including… voltage regulation." Sustained overvoltage, surge, or lightning-induced transients exceed its absolute maximum ratings and may cause irreversible failure.
DF2S24FS,L3M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- SOD-923
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 19V (Max)
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 8.5pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
DF2S24FS,L3M FAQ
1.How can I place an order for DF2S24FS,L3M through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2S24FS,L3M 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 DF2S24FS,L3M reliable?
The price and inventory of DF2S24FS,L3M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2S24FS,L3M is usually 5 days.
3.What payment methods are accepted for DF2S24FS,L3M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2S24FS,L3M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2S24FS,L3M?
DF2S24FS,L3M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2S24FS,L3M 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 DF2S24FS,L3M?
For technical support, including DF2S24FS,L3M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2S24FS,L3M requirements.
6.How does Aetrix verify that DF2S24FS,L3M is sourced from the original manufacturer or authorized distributors?
All DF2S24FS,L3M 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 DF2S24FS,L3M meets industry standards.
7.What is the process for return or replacement of DF2S24FS,L3M?
All DF2S24FS,L3M units undergo pre-shipment inspection (PSI). If there is an issue with DF2S24FS,L3M, 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 DF2S24FS,L3M part is unused and in its original packaging.
Return procedure for DF2S24FS,L3M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF2S24FS,L3M Tags
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