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Toshiba Semiconductor and Storage DF2S16FS,L3M
- Part No.:
- DF2S16FS,L3M
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- SOD-923
- Datasheet:
-
DF2S16FS,L3M.pdf
- Description:
- TVS DIODE 12VWM SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:11,577
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Product details
Overview
DF2S16FS from Toshiba Electronic Devices & Storage Corporation is a bidirectional ESD protection diode in SOD-923 package, rated for ±12 kV IEC61000-4-2 contact discharge, 16 V working peak reverse voltage (VRWM), and 22 Ω dynamic impedance, deployed for high-speed data line protection in USB 2.0, HDMI, and audio interfaces.
For engineers reviewing the DF2S16FS datasheet, DF2S16FS pinout, DF2S16FS application, or DF2S16FS equivalent, key selection criteria include clamping voltage (VC = 10 V at IPP = 1 A), low capacitance (Ct = 2.0 pF at VR = 0 V), thermal limits (Tj ≤ 150 °C), and strict ESD-only functional scope per Toshiba's design intent.
Technical Context
This device implements a silicon epitaxial planar Zener-based ESD clamp with symmetrical bidirectional conduction. It operates exclusively as a transient voltage suppressor-no regulation or steady-state current handling capability is specified or intended.
Its electrical behavior is defined by reverse breakdown at VBR ≈ 16.0 V (typ.), clamping to ≤10 V under 1 A 8/20 µs surge, and maintaining signal integrity via ultra-low 2.0 pF junction capacitance at 0 V bias-critical for preserving rise time in >480 Mbps interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC61000-4-2) | ±12 kV contact discharge - meets industrial-grade ESD immunity without device damage |
| VRWM | 15.3–17.1 V - ensures reliable blocking of 12 V nominal bus lines during normal operation |
| VC @ IPP = 1 A | ≤10 V - limits downstream IC stress during ESD events on high-speed data lines |
| Ct @ 0 V, 1 MHz | 2.0 pF (typ.) - preserves signal integrity in USB 2.0 and audio differential pairs |
| Dynamic Impedance (ZZ) | 22 Ω (typ.) - determines voltage overshoot during fast transients (dV/dt > 1 kV/ns) |
| Junction Temp Limit | 150 °C - defines maximum allowable thermal stress during repeated ESD strikes |
Pinout & Package
SOD-923 (Toshiba 1-1AH1A) and fSC (Toshiba 1-1L1S) are dual package designations for this 2-pin ultra-small surface-mount diode; both share identical pin assignment and footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to protected line side; forms anode-cathode pair with Pin 2 for bidirectional clamping |
| 2 | Anode | Connected to ground reference; completes low-impedance path for ESD current to GND |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity constraints |
| Ultra-Low Capacitance | 2.0 pF typical ensures <1% signal distortion on 480 Mbps USB 2.0 channels |
| Low Clamping Voltage | 10 V max at 1 A pulse protects 3.3 V and 5 V logic interfaces from latch-up or gate oxide rupture |
| Small Footprint | 0.6 × 0.3 mm SOD-923 saves PCB area in space-constrained mobile and wearables designs |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Lines |
|---|---|
Use Scenario: Protecting D+ and D− pins of USB 2.0 transceivers against human-body-model and IEC contact ESD events. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 2.0 pF capacitance prevents signal degradation while clamping surges to ≤10 V, maintaining eye diagram compliance. | Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines from ESD coupling through cables or connectors. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp between signal and chassis/ground, operating below 100 kHz clock rates. Use Value: 15.3–17.1 V VRWM blocks 5 V DDC bus leakage while enabling ±12 kV ESD immunity per IEC61000-4-2. |
| Smartphone Audio Jacks | Industrial Sensor Interfaces |
Use Scenario: Shielding 3.5 mm TRRS audio jack mic and headset lines from user-hand ESD during plug insertion/removal. IC Role / Device Role / Timing Role: Dual-line ESD protector mounted adjacent to jack, with cathode/anode tied to each signal and shared ground. Use Value: Sub-1 mm² SOD-923 footprint fits tight mechanical layouts; 0.55 mg weight avoids flexure stress on thin PCBs. | Use Scenario: Hardening analog sensor outputs (e.g., thermocouple, RTD) routed across noisy factory floors against cable-induced ESD. IC Role / Device Role / Timing Role: Low-leakage (IR ≤ 0.5 µA) shunt clamp on signal-to-ADC path, referenced to system ground. Use Value: 0.5 µA max reverse current avoids DC offset errors in µV-level precision measurements. |
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, 1.0 pF Ct, 12 V VRWM, ±8 kV ESD rating | Lower ESD rating and capacitance; suited for lower-voltage, higher-speed interfaces only | Select when 1.0 pF is mandatory and ±8 kV suffices; not drop-in due to different VRWM and ESD level |
| ESD5Z3.3T5G | Unidirectional, 3.3 V VRWM, 15 pF Ct, ±12 kV ESD rating | Unidirectional architecture requires separate devices per signal polarity; higher capacitance limits speed | Use only for DC-biased lines where polarity is fixed and bandwidth <10 MHz |
Compared with TPD2E001DRYR and ESD5Z3.3T5G, the DF2S16FS delivers balanced bidirectionality, optimal 2.0 pF/16 V trade-off for 12 V-tolerant interfaces, and verified ±12 kV robustness-making it preferred for USB 2.0, HDMI, and mixed-signal industrial ports.
Availability
DF2S16FS is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI control line hardening, and smartphone audio jack ESD suppression requiring stable component supply and long-term production continuity.
Supply support for DF2S16FS 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 automotive-grade qualification.
The DF2S16FS belongs to Toshiba's ESD protection diode family engineered specifically for high-fidelity, low-capacitance transient suppression in portable and high-speed digital interfaces-not for voltage regulation or continuous power handling.
FAQ
What is the primary function of the DF2S16FS?
The DF2S16FS is a dedicated bidirectional ESD protection diode designed solely to suppress electrostatic discharge transients per IEC61000-4-2 (±12 kV contact). It is not rated for voltage regulation, overvoltage clamping during sustained fault conditions, or continuous current handling-its sole validated role is transient event protection on signal lines.
Does the DF2S16FS support unidirectional or bidirectional ESD protection?
The DF2S16FS provides bidirectional ESD protection, confirmed by its symmetrical Zener-based structure and identical ±12 kV IEC61000-4-2 rating on both polarities. Its pinout (Pin 1 = cathode, Pin 2 = anode) enables clamping in either direction-ideal for AC-coupled or differential interfaces like USB D+/D− without polarity constraints.
What is the maximum clamping voltage of the DF2S16FS under ESD stress?
The DF2S16FS clamps to a maximum of 10 V when subjected to a 1 A, 8/20 µs surge current (per IEC61000-4-5 test condition), measured on the reverse side. This value ensures safe operation for 3.3 V and 5 V logic families, preventing gate oxide damage or latch-up in downstream ICs during ESD events.
Can the DF2S16FS be used for DC voltage regulation or overvoltage protection?
No-the DF2S16FS is explicitly designated by Toshiba for ESD protection only and must not be used for voltage regulation, steady-state overvoltage suppression, or surge current handling beyond IEC-defined ESD pulses. Its datasheet states "not intended for any other purpose, including… voltage regulation," and no DC Zener regulation characteristics (e.g., IZ tolerance, regulation slope) are guaranteed.
What package variants are available for the DF2S16FS?
The DF2S16FS is offered in two identical-footprint package variants: SOD-923 (Toshiba designation 1-1AH1A) and fSC (Toshiba designation 1-1L1S). Both share the same 0.6 × 0.3 mm outline, 2-pin configuration, cathode/anode pinout, and 0.55–0.6 mg mass-differing only in internal mold compound and manufacturing site identification.
DF2S16FS,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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 15.3V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 10pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
DF2S16FS,L3M FAQ
1.How can I place an order for DF2S16FS,L3M through Aetrix?
Please submit a Request for Quotation (RFQ) for DF2S16FS,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 DF2S16FS,L3M reliable?
The price and inventory of DF2S16FS,L3M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DF2S16FS,L3M is usually 5 days.
3.What payment methods are accepted for DF2S16FS,L3M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DF2S16FS,L3M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DF2S16FS,L3M?
DF2S16FS,L3M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DF2S16FS,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 DF2S16FS,L3M?
For technical support, including DF2S16FS,L3M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DF2S16FS,L3M requirements.
6.How does Aetrix verify that DF2S16FS,L3M is sourced from the original manufacturer or authorized distributors?
All DF2S16FS,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 DF2S16FS,L3M meets industry standards.
7.What is the process for return or replacement of DF2S16FS,L3M?
All DF2S16FS,L3M units undergo pre-shipment inspection (PSI). If there is an issue with DF2S16FS,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 DF2S16FS,L3M part is unused and in its original packaging.
Return procedure for DF2S16FS,L3M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DF2S16FS,L3M Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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D12V0L1B2LP-7B
Diodes Incorporated
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