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Diodes Incorporated DESD5V0L2BTQ-7
- Part No.:
- DESD5V0L2BTQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD5V0L2BTQ-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:8,701
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Product details
Overview
DESD5V0L2BTQ from Diodes Incorporated is a two-channel bidirectional TVS diode designed for ESD protection of high-speed data lines. It features a 5.0 V reverse standoff voltage, 6.0–9.0 V breakdown range, 12 V max clamping voltage at 15 A peak pulse current, and 45 pF typical channel capacitance. It is AEC-Q101 qualified and used in USB and HDMI interfaces in automotive infotainment systems.
For engineers reviewing the DESD5V0L2BTQ datasheet, DESD5V0L2BTQ pinout, DESD5V0L2BTQ application, or DESD5V0L2BTQ equivalent, key selection criteria include IEC 61000-4-2 ±30 kV contact/air ESD rating, low 45 pF input capacitance for signal integrity, SOT23 package compatibility with space-constrained PCB layouts, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device implements a dual-channel, bidirectional avalanche-clamping structure optimized for transient suppression on differential or independent signal pairs. Each channel provides symmetrical clamping in both polarities, with guaranteed breakdown at ≥6.0 V and ≤9.0 V under 5 mA test current.
Its thermal design supports 250 mW continuous power dissipation and 500 °C/W junction-to-ambient resistance on standard FR-4 PCBs. The 8/20 μs pulse waveform capability delivers up to 110 W peak pulse power with full derating above +25°C ambient per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 6.0 V / 9.0 V - Guaranteed avalanche conduction onset range at 5 mA, ensuring predictable turn-on |
| VC @ IPP | 12 V @ 15 A - Clamped voltage during worst-case 8/20 μs surge, limiting downstream IC stress |
| CT (typ) | 45 pF - Low channel capacitance preserves signal rise/fall times on USB 2.0/HDMI DDC lines |
| ESD Rating | ±30 kV air & contact - Full IEC 61000-4-2 Level 4 compliance without external circuitry |
| Package | SOT23 - 3-pin surface-mount outline with 2.4 mm × 1.3 mm footprint for dense layout integration |
Pinout & Package
SOT23 package: 3-terminal plastic molded case, UL 94V-0 rated, matte tin-plated alloy 42 leadframe, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to protected line 1 (e.g., USB D+); forms bidirectional clamp with Pin 2 |
| Pin 2 | Cathode (common) | Shared cathode node tied to ground or reference plane; enables dual-channel operation in single package |
| Pin 3 | Anode of Channel 2 | Connects to protected line 2 (e.g., USB D−); symmetric clamping path with Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel bidirectional ESD protection | Single SOT23 package protects two independent signal lines without polarity constraints |
| IEC 61000-4-2 ±30 kV compliance | Eliminates need for external ESD test fixtures or secondary protection stages |
| 45 pF typical channel capacitance | Enables use on 480 Mbps USB 2.0 data pairs without measurable eye diagram degradation |
| AEC-Q101 qualification | Validated for automotive applications including head units, telematics, and ADAS sensor interfaces |
Applications
| USB 2.0 Interface Protection | HDMI DDC Channel Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of automotive USB host ports against ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: Maintains 480 Mbps signaling integrity while clamping transients to ≤12 V, preventing PHY latch-up or damage. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines (SCL/SDA) in infotainment head units. IC Role / Device Role / Timing Role: Low-capacitance TVS pair suppressing ESD on 100 kHz I²C-compatible bus lines. Use Value: 45 pF capacitance avoids timing skew or false ACK/NACK errors on 3.3 V DDC signals. |
| Automotive Camera Link Protection | LVDS SerDes Interface Protection |
Use Scenario: Shielding MIPI CSI-2 differential pairs in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Dual-channel TVS placed adjacent to image sensor connector to absorb board-level ESD coupling. Use Value: Symmetrical clamping ensures no DC offset shift on 800 mV common-mode LVDS signals. | Use Scenario: Protecting high-speed SerDes links between radar processor and antenna module in ADAS domain controllers. IC Role / Device Role / Timing Role: Front-end transient suppressor on serialized clock/data lanes operating at >1 Gbps. Use Value: 12 V clamping voltage limits receiver input swing excursion, preserving jitter margin and BER performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Single-channel, unidirectional, higher 600 W PPP, 100 pF CT | Requires two devices for dual-line protection; unsuitable for AC-coupled or bidirectional buses | Select only when protecting DC-biased power rails or single-ended signals with ground-referenced surges |
| TPD2E001DRYR | Two-channel, bidirectional, 12 pF CT, lower 5.5 V VRWM, not AEC-Q101 qualified | Better for high-speed USB 3.0 but lacks automotive qualification and fails at 24 V system transients | Prefer for consumer portable electronics where AEC-Q101 is unnecessary and <20 pF capacitance is critical |
Compared with SMAJ5.0A and TPD2E001DRYR, DESD5V0L2BTQ uniquely balances automotive qualification, dual-channel bidirectionality, and 45 pF capacitance-making it optimal for space-limited, safety-critical USB/HDMI interfaces where signal fidelity and regulatory compliance are jointly required.
Availability
DESD5V0L2BTQ is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial USB peripherals, and HDMI-enabled display subsystems requiring stable component supply across multi-year production cycles.
Supply support for DESD5V0L2BTQ 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.
The DESDxxVL2BTQ series belongs to Diodes' automotive-qualified TVS portfolio, engineered specifically for ESD-hardened interface protection in harsh environments where AEC-Q101 reliability and low capacitance are mandatory.
FAQ
What is the maximum clamping voltage of DESD5V0L2BTQ under IEC 61000-4-2 ESD stress?
The device does not specify clamping voltage under IEC 61000-4-2 waveforms directly; instead, its 12 V clamping voltage is measured at 15 A peak pulse current using the 8/20 μs waveform (Figure 2). This correlates to robust suppression of contact-discharge events up to ±30 kV, as validated per test method in the datasheet.
Can DESD5V0L2BTQ be used on 3.3 V logic lines?
Yes - its 5.0 V reverse standoff voltage (VRWM) provides sufficient margin above 3.3 V nominal rail voltage, and its 6.0 V minimum breakdown ensures no leakage or conduction during normal operation. The 12 V clamping voltage also stays well below absolute maximum ratings of typical 3.3 V interface ICs.
Is the SOT23 footprint of DESD5V0L2BTQ compatible with standard reflow profiles?
Yes - the device is qualified for lead-free reflow per JEDEC J-STD-020, with moisture sensitivity level 1. Its matte tin finish and alloy 42 leadframe ensure reliable solderability using standard SnAgCu profiles, and thermal resistance data assumes mounting on 2 oz copper FR-4 pads per Diodes' recommended layout.
Does DESD5V0L2BTQ require external biasing or control signals?
No - it is a passive, inherently bidirectional TVS diode requiring no external power, bias, or configuration. It operates solely via avalanche breakdown when transient voltage exceeds VBR, returning to high-impedance state automatically after surge decay, with no reset or recovery timing constraints.
DESD5V0L2BTQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 15A
- Power - Peak Pulse:
- 230W
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DESD5V0L2BTQ-7 FAQ
1.How can I place an order for DESD5V0L2BTQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD5V0L2BTQ-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 DESD5V0L2BTQ-7 reliable?
The price and inventory of DESD5V0L2BTQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD5V0L2BTQ-7 is usually 5 days.
3.What payment methods are accepted for DESD5V0L2BTQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD5V0L2BTQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD5V0L2BTQ-7?
DESD5V0L2BTQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD5V0L2BTQ-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 DESD5V0L2BTQ-7?
For technical support, including DESD5V0L2BTQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD5V0L2BTQ-7 requirements.
6.How does Aetrix verify that DESD5V0L2BTQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD5V0L2BTQ-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 DESD5V0L2BTQ-7 meets industry standards.
7.What is the process for return or replacement of DESD5V0L2BTQ-7?
All DESD5V0L2BTQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD5V0L2BTQ-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 DESD5V0L2BTQ-7 part is unused and in its original packaging.
Return procedure for DESD5V0L2BTQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD5V0L2BTQ-7 Tags
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Diodes Incorporated
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