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Diodes Incorporated DESD24VL2BTQ-7
- Part No.:
- DESD24VL2BTQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DESD24VL2BTQ-7.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:7,348
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Product details
Overview
DESD24VL2BTQ from Diodes Incorporated is a two-channel bidirectional TVS diode designed for ESD protection of high-speed data lines in automotive and portable electronics. It features a 24V reverse standoff voltage, 38V max clamping voltage at 3A peak pulse current, 11pF typical channel capacitance, and ±30kV IEC 61000-4-2 contact/air ESD rating - deployed in HDMI ports and USB modules requiring low-capacitance transient suppression.
For engineers reviewing the DESD24VL2BTQ datasheet, DESD24VL2BTQ pinout, DESD24VL2BTQ application, or DESD24VL2BTQ equivalent, key selection criteria include clamping voltage under 3A surge, sub-12pF input capacitance for signal integrity, AEC-Q101 qualification for automotive use, SOT23 package compatibility with high-density PCB layouts, and compliance with IEC 61000-4-2 Level 4 ESD immunity requirements.
Technical Context
This device implements a dual-channel, bidirectional avalanche breakdown structure optimized for fast transient response (sub-nanosecond turn-on) and low capacitive loading on differential or single-ended I/O lines. Its symmetrical VBR min/max (24.0–31.5V) ensures consistent clamping across polarity reversals, while thermal resistance of 500°C/W supports operation up to +150°C junction temperature.
The SOT23-3L package integrates two independent TVS elements sharing a common cathode configuration, enabling compact protection of paired signals like HDMI DDC or USB D+/D− without cross-talk. Peak pulse power dissipation ranges from 110W to 230W depending on pulse width and ambient temperature, per standardized 8/20μs waveform testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 24 V - Maximum continuous operating voltage before conduction begins; sets upper limit for safe signal swing in protected line. |
| Breakdown Voltage (VBR) | 24.0–31.5 V @ 5 mA - Confirmed avalanche onset range; guarantees reliable triggering within defined tolerance band. |
| Max Clamping Voltage (VC) | 38 V @ 3 A - Voltage seen by protected IC during 8/20μs surge; critical for ensuring downstream logic remains below absolute maximum ratings. |
| Peak Pulse Current (IPP) | 3 A - Maximum non-repetitive surge current the device sustains without degradation; defines protection level against IEC 61000-4-2 events. |
| Channel Input Capacitance (CT) | 11 pF - Low parasitic loading preserves signal edge rate and impedance matching on high-speed interfaces like HDMI 1.4/2.0. |
| ESD Rating | ±30 kV contact / ±30 kV air - Full compliance with IEC 61000-4-2 Level 4; eliminates need for external ESD test margining. |
| Operating Temperature | −55°C to +150°C - Enables deployment in engine bay, infotainment head units, and industrial control panels with wide thermal excursions. |
Pinout & Package
Package: SOT23-3L - surface-mount plastic package with matte tin-plated alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rated molding compound, and 0.009 g mass. Optimized for automated placement and reflow soldering per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode Channel 1 | Connects to first protected signal line (e.g., HDMI D+); forms one half of bidirectional clamp path. |
| Pin 2 | Cathode (Common) | Shared cathode node for both channels; ties to system ground plane or low-impedance return path. |
| Pin 3 | Anode Channel 2 | Connects to second protected signal line (e.g., HDMI D−); completes differential or independent dual-line protection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including infotainment, ADAS camera links, and body control modules under stress conditions. |
| Low 11pF channel capacitance | Minimizes signal distortion on 1.65–6 Gbps interfaces such as HDMI 2.0 and USB 3.0 without requiring layout compensation. |
| ±30kV IEC 61000-4-2 ESD rating | Eliminates need for secondary ESD stages in end-equipment design, reducing BOM count and board space. |
| SOT23-3L footprint | Enables placement directly at connector entry points with minimal trace length, maximizing protection effectiveness. |
| Halogen- and antimony-free "Green" construction | Meets automotive OEM environmental mandates (e.g., Ford WSS-M99P9999-A1, GMW3172) and EU ELV Directive. |
Applications
| HDMI Interface Protection | USB 2.0 Port Protection |
|---|---|
Use Scenario: Protecting HDMI 1.4/2.0 source/sink ports against ESD events during cable insertion or handling in automotive displays and set-top boxes. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between connector and SerDes PHY, clamping surges before they reach HDMI transmitter/receiver ICs. Use Value: 11pF capacitance avoids degrading TMDS eye diagram; 38V clamping ensures HDMI sink ICs (e.g., TFP410, SiI9134) remain within 40V absolute max rating. | Use Scenario: Safeguarding USB 2.0 D+/D− lines in automotive telematics hubs and industrial USB host controllers exposed to frequent plug/unplug cycles. IC Role / Device Role / Timing Role: Dual-channel TVS providing symmetric clamping on differential pair, preserving signal integrity while meeting USB 2.0 eye mask requirements. Use Value: Sub-12pF loading maintains >480 Mbps data rate compliance; ±30kV ESD rating exceeds USB-IF ESD test requirement (±15kV air). |
| Automotive Camera Link Protection | LVDS Display Interface Protection |
Use Scenario: Shielding MIPI D-PHY or FPD-Link III camera sensor interfaces in rear-view and surround-view systems from ESD induced during vehicle service. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at camera module flex connector to suppress transients before reaching serializer/deserializer ICs. Use Value: 24V VRWM matches typical 2.8–3.3V rail-supplied camera sensors; 3A IPP handles worst-case ESD coupling into coaxial or twisted-pair video links. | Use Scenario: Securing LVDS clock/data pairs in automotive instrument clusters and digital dashboards where display timing must remain jitter-free. IC Role / Device Role / Timing Role: Differential TVS suppressing common-mode and differential-mode transients on high-speed LVDS buses without adding skew or attenuation. Use Value: Matched channel capacitance (11pF ±1pF) prevents inter-pair skew; 38V clamping protects LVDS receivers (e.g., DS90C387) rated for 40V abs max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Single-channel, DO-214AC package, 38.9V clamping @ 7.7A, 100pF capacitance | Higher capacitance limits use to DC/low-speed lines; larger footprint unsuitable for HDMI/USB routing | Select only for cost-sensitive, non-high-speed applications where board space and signal integrity are secondary. |
| TPD2E001DRYR | Two-channel, SOT-553, 15V VRWM, 25V clamping @ 1A, 3.5pF capacitance | Lower voltage rating restricts use to 3.3V/5V rails; insufficient for 24V automotive supply-coupled transients | Prefer for USB/MIPI interfaces on low-voltage SoCs; avoid where 24V system-level ESD coupling is possible. |
Compared with SMAJ24A and TPD2E001DRYR, DESD24VL2BTQ uniquely balances 24V standoff, 11pF capacitance, and AEC-Q101 qualification - making it the only option among the three validated for HDMI/FPD-Link III protection in automotive Grade 2 environments.
Availability
DESD24VL2BTQ is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial HDMI video gateways, and USB-based telematics modules requiring stable component supply across extended product lifecycles.
Supply support for DESD24VL2BTQ 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, serving automotive, industrial, computing, and consumer markets with a focus on reliability, efficiency, and regulatory compliance.
The DESDxxVL2BTQ series targets high-reliability ESD protection in automotive electronics, engineered specifically to meet AEC-Q101 stress testing and IATF 16949 manufacturing standards for safety-critical signal paths.
FAQ
What is the maximum operating temperature for DESD24VL2BTQ?
The DESD24VL2BTQ supports an operating junction temperature range of −55°C to +150°C, verified per AEC-Q101 test conditions. This allows deployment in under-hood automotive modules and industrial enclosures without thermal derating up to +125°C ambient when mounted on standard FR-4 with 2oz copper pads.
Does DESD24VL2BTQ require external biasing or control signals?
No. DESD24VL2BTQ is a passive, unidirectional-construction TVS diode that operates without power, bias, or control inputs. It functions solely via avalanche breakdown triggered by overvoltage events exceeding its 24V standoff threshold, with no active circuitry or enable pins.
Can DESD24VL2BTQ protect both differential and single-ended signals?
Yes. Its dual-anode/common-cathode SOT23-3L configuration enables protection of either a differential pair (e.g., HDMI D+/D−) or two independent single-ended lines (e.g., UART TX/RX). Each channel operates independently with matched 11pF capacitance and identical 24V–31.5V breakdown characteristics.
Is the SOT23-3L package compatible with standard reflow profiles?
Yes. The device uses matte tin-plated alloy 42 leads and complies with JEDEC J-STD-020 moisture sensitivity level 1, supporting standard lead-free reflow profiles (peak 260°C, 60-second duration above 217°C) without preconditioning or special handling requirements.
DESD24VL2BTQ-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):
- 24V
- Voltage - Breakdown (Min):
- 24V
- Voltage - Clamping (Max) @ Ipp:
- 38V
- Current - Peak Pulse (10/1000µs):
- 3A
- 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
DESD24VL2BTQ-7 FAQ
1.How can I place an order for DESD24VL2BTQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DESD24VL2BTQ-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 DESD24VL2BTQ-7 reliable?
The price and inventory of DESD24VL2BTQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DESD24VL2BTQ-7 is usually 5 days.
3.What payment methods are accepted for DESD24VL2BTQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DESD24VL2BTQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DESD24VL2BTQ-7?
DESD24VL2BTQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DESD24VL2BTQ-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 DESD24VL2BTQ-7?
For technical support, including DESD24VL2BTQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DESD24VL2BTQ-7 requirements.
6.How does Aetrix verify that DESD24VL2BTQ-7 is sourced from the original manufacturer or authorized distributors?
All DESD24VL2BTQ-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 DESD24VL2BTQ-7 meets industry standards.
7.What is the process for return or replacement of DESD24VL2BTQ-7?
All DESD24VL2BTQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with DESD24VL2BTQ-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 DESD24VL2BTQ-7 part is unused and in its original packaging.
Return procedure for DESD24VL2BTQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DESD24VL2BTQ-7 Tags
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