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Diodes Incorporated D3V3L1B2WS-7
- Part No.:
- D3V3L1B2WS-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
D3V3L1B2WS-7.pdf
- Description:
- GENERAL PROTECTION PP SOD323 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:653
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Product details
Overview
D3V3L1B2WS from Diodes Incorporated is a single-channel bidirectional TVS diode designed for ESD and transient protection of low-voltage I/O or power lines in portable electronics, with 3.3V reverse working voltage, ±26kV IEC 61000-4-2 contact/air ESD rating, 6.0V typical clamping voltage at 1A, 11pF junction capacitance, and SOD323 package.
For engineers reviewing the D3V3L1B2WS datasheet, D3V3L1B2WS pinout, D3V3L1B2WS application, or D3V3L1B2WS equivalent, key selection criteria include low clamping voltage under 5A surge, sub-12pF signal-line capacitance, bidirectional snapback behavior with 2.8V snap-back voltage, and compatibility with high-speed interfaces in space-constrained handheld devices.
Technical Context
This device implements a silicon avalanche-based snapback TVS structure optimized for low-voltage operation (VRWM = 3.3V), enabling robust protection without compromising signal integrity on 3.3V or lower I/O rails. Its bidirectional symmetry supports AC-coupled or dual-rail applications without polarity constraints.
The 2.8V snap-back voltage (VSB) ensures rapid turn-on before downstream ICs experience overstress, while the 6.0–8.0V clamping range at 1–5A pulses limits voltage excursion during transients. Junction capacitance remains stable at 11pF (typ) at 0V bias and 1MHz, critical for USB 2.0, audio codecs, and SDIO interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3V - Maximum continuous DC or RMS voltage the device blocks without leakage exceeding 0.5μA. |
| Snap-Back Voltage | 2.8V - Voltage at which device transitions from high-impedance to low-impedance conduction mode during ESD event. |
| Clamping Voltage (1A) | 6.0V (typ) - Peak voltage seen across protected line when subjected to 1A 8/20μs surge, limiting stress on downstream ICs. |
| Clamping Voltage (5A) | 8.5V (max) - Maximum voltage clamp under worst-case 5A lightning/EFT surge, ensuring safe margin below 10V logic thresholds. |
| Junction Capacitance | 11pF (typ) - Low parasitic capacitance preserves signal rise/fall times in high-speed data lines like USB 2.0 and HDMI CEC. |
| ESD Rating | ±26kV (contact/air) - Full compliance with IEC 61000-4-2 Level 4, eliminating need for external ESD staging in consumer handheld designs. |
| Peak Pulse Power | 90W (8/20μs) - Sustains short-duration surges from cable discharge or EFT without thermal runaway or parametric shift. |
Pinout & Package
Package: SOD323 - Surface-mount plastic package measuring 1.30mm × 1.70mm × 0.90mm (L × W × H), with matte tin-plated alloy 42 leadframe, moisture sensitivity level 1, and UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode Mark Side) | Transient Current Sink (Bidirectional) | Acts as cathode during positive transients; anode during negative transients-enables symmetrical clamping without polarity assignment. |
| Cathode (Unmarked Side) | Transient Current Sink (Bidirectional) | Acts as anode during positive transients; cathode during negative transients-forms complete bidirectional path with Anode terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Snapback Protection | Enables single-device protection of AC-coupled or floating I/O lines (e.g., USB D+/D−, audio jack) without polarity concerns. |
| Low Clamping Voltage (6.0V @ 1A) | Reduces risk of latch-up or gate oxide damage in 3.3V/2.5V microcontrollers and PMICs during ESD events. |
| 11pF Junction Capacitance | Minimizes signal distortion and timing skew on 480Mbps USB 2.0 differential pairs and high-fidelity audio paths. |
| ±26kV IEC 61000-4-2 Compliance | Meets highest industrial ESD immunity requirement without additional board-level shielding or layout derating. |
| Lead-Free & Halogen-Free Construction | Complies with RoHS 3 (2015/863/EU) and automotive "Green" standards (<900ppm Br/Cl, <1000ppm Sb), supporting global eco-regulatory programs. |
Applications
| USB 2.0 Data Lines | Smartphone Audio Jacks |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB OTG circuits against repeated plug/unplug ESD events. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector, clamping surges before reaching USB PHY or controller. Use Value: 11pF capacitance avoids USB 2.0 eye diagram degradation; 6.0V clamping prevents PHY reset or enumeration failure during ±26kV contact discharge. | Use Scenario: Shielding 3.5mm TRRS audio jacks in mobile handsets from user-hand ESD during insertion/removal. IC Role / Device Role / Timing Role: Single-channel TVS applied across left/right ground-return paths to suppress common-mode transients entering analog audio circuitry. Use Value: 2.8V snap-back ensures immediate conduction before op-amp input stages exceed absolute maximum ratings; low leakage (<0.5μA) prevents DC offset drift. |
| Digital Camera Sensor Interfaces | Portable Medical Instrumentation |
Use Scenario: Safeguarding MIPI CSI-2 clock and data lanes in compact digital cameras exposed to field ESD during lens changes or battery swaps. IC Role / Device Role / Timing Role: Per-lane TVS placed adjacent to image sensor connector to limit transient-induced bit errors or frame corruption. Use Value: Sub-12pF capacitance maintains >100MHz signal bandwidth; 90W peak power rating handles multi-pulse EFT bursts without parameter shift. | Use Scenario: Protecting touch-sensitive front-panel controls and serial communication lines (I²C/SPI) in handheld patient monitors used in clinical environments. IC Role / Device Role / Timing Role: Point-of-entry TVS on all user-accessible I/O traces to meet IEC 60601-1-2 ESD immunity requirements. Use Value: ±26kV air/contact rating exceeds Class B medical ESD test levels; SOD323 footprint enables placement within tight 2mm board margins around bezel edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A | Unidirectional, higher VRWM (3.3V), higher VCL (11.2V @ 5A), larger SMA package (4.5×2.7mm). | Requires separate devices per polarity; unsuitable for AC-coupled lines like USB or audio. | Select only when unidirectional blocking is required and board area permits larger footprint. |
| TPD2E001DRYR | Two-channel, 10pF typ, ±8kV IEC 61000-4-2, 5.5V VRWM, X2SON package (1.0×0.6mm). | Limited ESD rating; insufficient for ±26kV industrial/handheld use cases. | Use only for cost-sensitive, low-risk consumer accessories where full Level 4 ESD is not mandated. |
Compared with SMAJ3.3A and TPD2E001DRYR, D3V3L1B2WS uniquely delivers ±26kV ESD robustness in a bidirectional configuration with 11pF capacitance and 3.3V working voltage-making it optimal for space-constrained, high-reliability portable I/O protection where polarity independence and signal fidelity are mandatory.
Availability
D3V3L1B2WS is available at Aetrix Electronics and suitable for cellular handsets & accessories, portable instrumentation, and digital cameras requiring stable component supply, long-term lifecycle support, and RoHS 3-compliant sourcing.
Supply support for D3V3L1B2WS 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
D3V3L1B2WS belongs to Diodes' TVS Diode portfolio targeting portable electronics protection, engineered specifically to replace MLVs with superior clamping performance, no wear-out mechanism, and minimal signal-line loading.
FAQ
What is the maximum operating temperature for D3V3L1B2WS?
The D3V3L1B2WS is rated for continuous operation from –55°C to +125°C junction temperature. Its thermal resistance (RθJA) is 500°C/W on standard FR-4 PCB layout, meaning it can dissipate up to 250mW at ambient temperatures ≤85°C without exceeding 125°C junction limit.
Does D3V3L1B2WS require orientation-specific placement on PCB?
No-D3V3L1B2WS is inherently bidirectional due to its symmetric snapback structure. The SOD323 package has no polarity marking requirement; either end may connect to the protected line or ground, simplifying layout and reducing assembly errors in high-volume portable manufacturing.
How does D3V3L1B2WS compare to multilayer varistors (MLVs) in ESD protection?
Unlike MLVs, D3V3L1B2WS exhibits no parametric degradation after repeated ESD strikes, offers lower and more consistent clamping voltage (6.0V vs. ≥10V for MLVs), and delivers tighter capacitance tolerance (11pF ±2pF). It also avoids MLV's voltage-dependent capacitance drift and aging effects, ensuring stable signal integrity over product lifetime.
Can D3V3L1B2WS be used on 1.8V I/O lines?
Yes-its 3.3V reverse working voltage provides adequate margin above 1.8V rail, and its 2.8V snap-back voltage ensures reliable triggering before 1.8V logic thresholds are exceeded. However, verify system-level overshoot margin using actual board parasitics and transient simulation, as clamping occurs at 6.0V (1A), which remains safely below most 1.8V IC absolute maximum ratings (typically 6.5V).
D3V3L1B2WS-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 3.5V
- Voltage - Clamping (Max) @ Ipp:
- 18V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 90W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 11pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
D3V3L1B2WS-7 FAQ
1.How can I place an order for D3V3L1B2WS-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D3V3L1B2WS-7 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 D3V3L1B2WS-7 reliable?
The price and inventory of D3V3L1B2WS-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D3V3L1B2WS-7 is usually 5 days.
3.What payment methods are accepted for D3V3L1B2WS-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D3V3L1B2WS-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D3V3L1B2WS-7?
D3V3L1B2WS-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D3V3L1B2WS-7 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 D3V3L1B2WS-7?
For technical support, including D3V3L1B2WS-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D3V3L1B2WS-7 requirements.
6.How does Aetrix verify that D3V3L1B2WS-7 is sourced from the original manufacturer or authorized distributors?
All D3V3L1B2WS-7 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 D3V3L1B2WS-7 meets industry standards.
7.What is the process for return or replacement of D3V3L1B2WS-7?
All D3V3L1B2WS-7 units undergo pre-shipment inspection (PSI). If there is an issue with D3V3L1B2WS-7, 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 D3V3L1B2WS-7 part is unused and in its original packaging.
Return procedure for D3V3L1B2WS-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D3V3L1B2WS-7 Tags
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