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Diodes Incorporated D55V0M1B2WSQ-7
- Part No.:
- D55V0M1B2WSQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
D55V0M1B2WSQ-7.pdf
- Description:
- TVS DIODE 55VWM 100VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:60,767
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Product details
Overview
D55V0M1B2WSQ-7 from Diodes Incorporated is a bidirectional transient voltage suppression (TVS) diode designed for ESD protection of high-speed data lines in automotive infotainment systems. It features a 55 V reverse standoff voltage (VRWM), 57 V minimum breakdown voltage (VBR), 86 V clamping voltage at 1 A, 14 pF typical capacitance, and ±25 kV contact/±30 kV air ESD immunity per IEC 61000-4-2.
For engineers reviewing the D55V0M1B2WSQ-7 datasheet, D55V0M1B2WSQ-7 pinout, D55V0M1B2WSQ-7 application, or D55V0M1B2WSQ-7 equivalent, this device serves as a compact, AEC-Q101-qualified solution for protecting USB, HDMI, and LVDS interfaces against electrostatic discharge in space-constrained automotive modules.
Technical Context
This TVS diode operates in bidirectional avalanche mode to clamp transient overvoltages across signal pairs without polarity dependence. Its low 14 pF capacitance ensures minimal signal integrity impact on 5 Gbps HDMI and 1.5 Gbps LVDS links, while maintaining robust 2 A peak pulse current handling under 8/20 µs waveform conditions.
The device is optimized for placement directly at connector entry points in automotive ECUs and head units. Its SOD323 package enables board-level integration adjacent to high-speed I/O pins, with thermal resistance (RθJA = 500 °C/W) validated on standard 2 oz FR-4 PCB layouts per Diodes Incorporated's recommended pad design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 55 V - Maximum continuous reverse operating voltage before leakage exceeds 100 nA |
| VBR (Min) | 57 V - Minimum voltage at which device enters avalanche conduction at 1 mA test current |
| VCL @ IPP=1A | 86 V - Clamped voltage during 8/20 µs surge, limiting downstream IC stress to safe levels |
| CT (Typ) | 14 pF - Low input capacitance enabling use on 5 Gbps HDMI and high-speed serial links |
| ESD Rating | ±25 kV contact / ±30 kV air - Full compliance with IEC 61000-4-2 Level 4 for system-level ESD robustness |
| PPP | 200 W - Peak pulse power dissipation capability under standardized 8/20 µs transient waveform |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
Pinout & Package
Package: SOD323 - Surface-mount plastic case measuring 1.30 mm × 1.70 mm × 0.95 mm (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 |
|---|---|---|
| Pin 1 | Anode/Cathode Terminal 1 | Bidirectional terminal - forms symmetrical clamping path with Pin 2; no polarity marking required |
| Pin 2 | Anode/Cathode Terminal 2 | Paired terminal completing the bidirectional TVS junction; connects across differential signal pair (e.g., HDMI D+–D−) |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD Protection | Clamps transients equally in both polarities - eliminates need for dual-diode configurations on differential lines |
| Low Capacitance (14 pF) | Preserves signal rise/fall times and eye diagram integrity on HDMI 2.0 and LVDS interfaces |
| AEC-Q101 Qualification | Validated for automotive underhood and cabin environments (-65°C to +150°C operating range) |
| Lead-Free & Halogen-Free | Meets RoHS 2 and automotive green standards (<900 ppm Br/Cl, <1000 ppm Sb) |
| SOD323 Footprint | Enables placement within 2 mm of connector pads - minimizes trace inductance and improves clamping response |
Applications
| HDMI Interface Protection | USB 2.0 Module Protection |
|---|---|
Use Scenario: Protecting HDMI 2.0 source outputs in automotive head units from ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Bidirectional TVS placed across TMDS data pairs to clamp fast-rising ESD transients before reaching SerDes receiver inputs. Use Value: 14 pF capacitance avoids signal degradation at 5 Gbps; ±30 kV air discharge rating prevents latch-up or damage during service operations. | Use Scenario: Shielding USB 2.0 D+/D− lines in telematics control units from user-port ESD exposure. IC Role / Device Role / Timing Role: Low-capacitance TVS deployed at USB Type-A receptacle to suppress contact discharges up to ±25 kV without affecting 480 Mbps data eye. Use Value: 86 V clamping at 1 A limits voltage seen by USB PHY to safe levels; SOD323 size fits tight layout near connector. |
| LVDS Camera Link Protection | Automotive Infotainment Display Interface |
Use Scenario: Safeguarding LVDS video links between rear-seat display controllers and camera modules in ADAS applications. IC Role / Device Role / Timing Role: Differential TVS mounted directly at LVDS connector to absorb ESD-induced common-mode surges without distorting 1.5 Gbps differential signaling. Use Value: Symmetrical clamping maintains DC balance; 57 V VBR ensures no conduction during normal 1.2 V common-mode swing operation. | Use Scenario: ESD hardening of MIPI DSI or FPD-Link III interfaces in digital instrument clusters. IC Role / Device Role / Timing Role: High-reliability TVS integrated into display interface BOM to meet OEM ESD test requirements (ISO 10605, GMW3172). Use Value: AEC-Q101 qualification guarantees performance stability across 10-year vehicle lifecycle; 2 A IPP supports multi-pulse ESD stress testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-Q | Unidirectional, 58 V VRWM, 64.4 V VBR, 93.6 V VCL @ 1 A, 200 W PPP, SMA package (4.5 mm × 2.7 mm) | Requires separate devices per signal line; larger footprint limits routing density near connectors | Select only when unidirectional clamping suffices and board space permits larger package |
| SP1003-01UTG | Bidirectional, 5.5 V VRWM, 12 pF CT, ±30 kV ESD, SOD-323, but rated for 5.5 V systems only | Not suitable for 55 V rail protection; intended for low-voltage logic I/O, not automotive data lines | Use only for sub-6 V interfaces like I²C or GPIO; incompatible with HDMI/LVDS voltage ranges |
Compared with SMAJ58A-Q and SP1003-01UTG, D55V0M1B2WSQ-7 uniquely combines 55 V standoff, bidirectional operation, 14 pF capacitance, and AEC-Q101 qualification in SOD323 - making it the only drop-in solution for ESD-hardened automotive high-speed serial interfaces requiring precise voltage coordination and minimal board area.
Availability
D55V0M1B2WSQ-7 is available at Aetrix Electronics and suitable for automotive infotainment systems, HDMI interface modules, and LVDS camera link designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant ESD protection.
Supply support for D55V0M1B2WSQ-7 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, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and consumer markets.
D55V0M1B2WSQ-7 belongs to Diodes' AEC-Q101-qualified TVS diode product line, engineered specifically to meet stringent ESD immunity and thermal endurance requirements of modern automotive infotainment and ADAS subsystems.
FAQ
What is the maximum clamping voltage of D55V0M1B2WSQ-7 under 2 A surge current?
The clamping voltage is 100 V at 2 A peak pulse current (IPP = 2 A) under 8/20 µs waveform conditions, as specified in the Electrical Characteristics table. This value ensures downstream components experience limited overvoltage stress during worst-case transient events, supporting robust system-level ESD compliance.
Can D55V0M1B2WSQ-7 be used for unidirectional signal lines?
Yes - although bidirectional by design, it functions reliably on unidirectional lines such as single-ended USB D+ or D−. Its symmetrical structure provides identical clamping in either polarity, eliminating orientation concerns during placement and simplifying assembly for mixed-signal routing.
Is the SOD323 package compatible with standard reflow profiles?
Yes - the device is qualified for lead-free reflow per J-STD-020, with moisture sensitivity level 1. It withstands peak temperatures up to 260°C and is compatible with standard Pb-free soldering profiles, including ramp-to-spike and soak profiles used in automotive PCB assembly.
Does D55V0M1B2WSQ-7 require external biasing or series impedance?
No - it operates passively without biasing or external components. The device connects directly across protected signal lines (e.g., HDMI D+/D−) and conducts only during overvoltage events. No series resistor or pull-up/pull-down networks are needed, preserving signal integrity and reducing BOM count.
D55V0M1B2WSQ-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):
- 55V (Max)
- Voltage - Breakdown (Min):
- 57V
- Voltage - Clamping (Max) @ Ipp:
- 100V
- Current - Peak Pulse (10/1000µs):
- 2A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- 14pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
D55V0M1B2WSQ-7 FAQ
1.How can I place an order for D55V0M1B2WSQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for D55V0M1B2WSQ-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 D55V0M1B2WSQ-7 reliable?
The price and inventory of D55V0M1B2WSQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D55V0M1B2WSQ-7 is usually 5 days.
3.What payment methods are accepted for D55V0M1B2WSQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D55V0M1B2WSQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D55V0M1B2WSQ-7?
D55V0M1B2WSQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D55V0M1B2WSQ-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 D55V0M1B2WSQ-7?
For technical support, including D55V0M1B2WSQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D55V0M1B2WSQ-7 requirements.
6.How does Aetrix verify that D55V0M1B2WSQ-7 is sourced from the original manufacturer or authorized distributors?
All D55V0M1B2WSQ-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 D55V0M1B2WSQ-7 meets industry standards.
7.What is the process for return or replacement of D55V0M1B2WSQ-7?
All D55V0M1B2WSQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with D55V0M1B2WSQ-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 D55V0M1B2WSQ-7 part is unused and in its original packaging.
Return procedure for D55V0M1B2WSQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
D55V0M1B2WSQ-7 Tags
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