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Diodes Incorporated D3V3L1B2T-7
- Part No.:
- D3V3L1B2T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
D3V3L1B2T-7.pdf
- Description:
- General Protection PP SOD523 T&R
- Quantity:
- Payment:
- Shipping:
Inventory:6,891
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Product details
Overview
D3V3L1B2T 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. It features a 3.3V reverse working voltage (VRWM), 2.8V snap-back voltage (VSB), 6.0V typical clamping voltage at 1A, 11pF junction capacitance, and ±26kV IEC 61000-4-2 contact/air ESD rating - enabling robust protection in space-constrained smartphone camera interfaces and USB data lines.
For engineers reviewing the D3V3L1B2T datasheet, D3V3L1B2T pinout, D3V3L1B2T application, or D3V3L1B2T equivalent, key selection criteria include clamping performance under 5A 8/20μs transients, sub-12pF signal-line capacitance, SOD523 footprint compatibility, and compliance with IEC 61000-4-2 Level 4 ESD immunity requirements in battery-powered handheld systems.
Technical Context
D3V3L1B2T employs a silicon avalanche snap-back structure to achieve low clamping voltage (6.0V typ @ 1A) and stable triggering without degradation-unlike MLVs. Its bidirectional operation supports AC-coupled or dual-rail signal paths, and its 11pF capacitance ensures minimal signal integrity impact on high-speed interfaces up to 100MHz.
The device operates across –55°C to +125°C, with thermal resistance RθJA = 449°C/W on standard FR-4, and delivers 90W peak pulse power (8/20μs) while maintaining <0.5µA leakage at VRWM. Its SOD523 package enables direct replacement of MLVs in existing 0402-class layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 3.3V - Maximum continuous operating voltage before conduction begins; sets upper limit for protected line voltage. |
| VSB | 2.8V - Snap-back trigger voltage at 50mA; enables fast, low-voltage clamping onset for sensitive 3.3V logic. |
| VCL @ 1A | 6.0V typical - Clamping voltage during 1A transient; ensures downstream ICs see <6.0V stress during ESD events. |
| CT | 11pF @ 0V, 1MHz - Low junction capacitance preserves signal rise time and bandwidth on USB 2.0 or MIPI D-PHY lines. |
| IPP Max | 5A @ 8/20μs - Peak surge current handling capacity; withstands lightning-induced surges per IEC 61000-4-5. |
| ESD Rating | ±26kV contact/air per IEC 61000-4-2 - Meets highest industrial ESD immunity level without external shielding. |
| PPP | 90W @ 8/20μs - Peak pulse power dissipation capability; defines transient energy absorption limit. |
Pinout & Package
Package: SOD523 - ultra-compact surface-mount package (1.25mm × 0.85mm × 0.65mm), RoHS-compliant, halogen-free, matte tin-plated alloy 42 leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Transient current entry point in forward direction | Connects to protected line; conducts during negative transients or reverse-biased ESD events. |
| Cathode (K) | Transient current entry point in reverse direction | Connects to protected line; conducts during positive transients or forward-biased ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD protection | ±26kV contact/air - eliminates need for secondary ESD filters in consumer handheld designs. |
| Low clamping voltage | 6.0V typical @ 1A - keeps protected ICs within safe operating area during fast transients. |
| Bidirectional protection | Single device protects AC-coupled or dual-polarity signal lines - reduces BOM count vs. back-to-back diodes. |
| Ultra-low capacitance | 11pF - enables use on 480Mbps USB 2.0, 1Gbps MIPI, or audio codec I²S buses without signal distortion. |
| Lead-free & green construction | Halogen- and antimony-free, UL 94V-0 molding compound - satisfies automotive and medical regulatory requirements. |
Applications
| Smartphone Camera Interface | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting MIPI CSI-2 differential pairs in mobile phone rear cameras from ESD during assembly, testing, and end-user handling. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector side of image sensor interface. Use Value: 11pF capacitance avoids skew between D+ and D− lines; 6.0V clamping prevents pixel corruption or sensor latch-up during ±26kV contact discharge. | Use Scenario: Safeguarding USB 2.0 D+ and D− lines in portable peripherals against cable discharge events (CDE) and hot-plug transients. IC Role / Device Role / Timing Role: Single-channel TVS placed inline with each data line, referenced to ground. Use Value: Sub-12pF loading maintains 480Mbps eye diagram integrity; 2.8V VSB ensures immediate conduction before 3.3V IO tolerances are exceeded. |
| Portable Medical Sensor Hub | Wireless Headset Audio Codec |
Use Scenario: Shielding analog front-end inputs of wearable ECG/SpO₂ modules from electrostatic discharge during patient contact or clinical handling. IC Role / Device Role / Timing Role: Low-leakage (0.05µA typ) TVS on 3.3V-supplied sensor signal path, minimizing DC offset error. Use Value: 0.5µA max IR at VRWM avoids measurable gain error in precision instrumentation amplifiers; –55°C to +125°C rating supports sterilization cycles. | Use Scenario: Protecting I²S digital audio lines between Bluetooth SoC and DAC in compact true-wireless stereo earbuds. IC Role / Device Role / Timing Role: High-speed ESD clamp on clock and data lanes, co-located with connector PCB pads. Use Value: 90W PPP rating absorbs multi-pulse EFT bursts during charging; SOD523 footprint fits within 1.5mm board edge clearance constraints. |
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, DO-214AC package (4.5mm × 2.7mm), 100W PPP, 15pF CT | Requires two devices for bidirectional coverage; higher capacitance limits use on >100MHz signals | Select when board space allows larger package and unidirectional protection suffices. |
| SP1003-030 | 3.3V bidirectional, SOD-323 package (1.7mm × 1.25mm), 12pF CT, ±30kV ESD | Larger footprint than SOD523; slightly higher capacitance but superior ESD rating | Choose for enhanced ESD margin where 0.5mm extra length is acceptable. |
Compared with SMAJ3.3A and SP1003-030, D3V3L1B2T offers the smallest footprint (SOD523), lowest capacitance (11pF), and optimal balance of clamping voltage (6.0V) and ESD rating (±26kV) for miniaturized portable designs requiring single-device bidirectional protection.
Availability
D3V3L1B2T is available at Aetrix Electronics and suitable for smartphone camera interfaces, USB 2.0 data line protection, portable medical sensor hubs, and wireless headset audio codecs requiring stable component supply and consistent SOD523 tape-and-reel delivery.
Supply support for D3V3L1B2T 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.
D3V3L1B2T belongs to Diodes' TVS Diode portfolio targeting portable electronics, emphasizing low-capacitance, low-clamp, and ultra-small-package solutions for high-speed data and imaging interfaces.
FAQ
What is the maximum operating temperature range for D3V3L1B2T?
D3V3L1B2T is rated for operation from –55°C to +125°C junction temperature. This range supports deployment in automotive cabin modules, industrial handhelds, and medical wearables exposed to thermal cycling, including reflow soldering at +260°C for 10 seconds per JEDEC J-STD-020.
How does D3V3L1B2T differ from multilayer varistors (MLVs) in portable designs?
Unlike MLVs, D3V3L1B2T uses silicon-based snap-back technology to deliver lower clamping voltage (6.0V vs. ≥10V typical), no performance degradation after repeated ESD strikes, and tighter parameter distribution. Its 11pF capacitance is also more stable over voltage and temperature than MLV dielectric behavior.
Can D3V3L1B2T protect both power rails and signal lines?
Yes - D3V3L1B2T protects one bidirectional line, making it suitable for either low-voltage power rails (e.g., 3.3V USB VBUS with CDE suppression) or high-speed signal lines (e.g., MIPI D-PHY, I²S). Its 3.3V VRWM and 2.8V VSB ensure compatibility with 3.3V logic families without false triggering.
Is D3V3L1B2T compliant with automotive qualification standards?
No - D3V3L1B2T is not AEC-Q200 qualified. For automotive applications, Diodes offers the Q-suffix variant D3V3L1B2TQ-7, which undergoes PPAP, is manufactured in IATF 16949-certified facilities, and meets AEC-Q200 stress test requirements for passive components.
D3V3L1B2T-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-79, SOD-523
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 18V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 90W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 11pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
D3V3L1B2T-7 FAQ
1.How can I place an order for D3V3L1B2T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D3V3L1B2T-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 D3V3L1B2T-7 reliable?
The price and inventory of D3V3L1B2T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D3V3L1B2T-7 is usually 5 days.
3.What payment methods are accepted for D3V3L1B2T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D3V3L1B2T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D3V3L1B2T-7?
D3V3L1B2T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D3V3L1B2T-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 D3V3L1B2T-7?
For technical support, including D3V3L1B2T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D3V3L1B2T-7 requirements.
6.How does Aetrix verify that D3V3L1B2T-7 is sourced from the original manufacturer or authorized distributors?
All D3V3L1B2T-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 D3V3L1B2T-7 meets industry standards.
7.What is the process for return or replacement of D3V3L1B2T-7?
All D3V3L1B2T-7 units undergo pre-shipment inspection (PSI). If there is an issue with D3V3L1B2T-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 D3V3L1B2T-7 part is unused and in its original packaging.
Return procedure for D3V3L1B2T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D3V3L1B2T-7 Tags
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