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Vishay General Semiconductor - Diodes Division VMMBZ33C1HD1HG3-08
- Part No.:
- VMMBZ33C1HD1HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
VMMBZ33C1HD1HG3-08.pdf
- Description:
- 28V;IR=0.1UA;IP=1.7A;P=100W;CD=1
- Quantity:
- Payment:
- Shipping:
Inventory:9,302
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Product details
Overview
VMMBZ33C1HD1HG3-08 from Vishay Semiconductors is a single-line unidirectional ESD-protection diode in DFN1006-2A package, designed for high-reliability signal line protection in automotive and industrial interfaces. It features 28 V reverse stand-off voltage (VRWM), 33 V nominal breakdown voltage (VBR), 40–59 V clamping voltage at 1.7 A (8/20 μs), 15 kV IEC 61000-4-2 contact discharge immunity, and 16.1 pF capacitance at 1 MHz - enabling robust transient suppression on low-capacitance data lines such as USB 2.0 or CAN FD.
For engineers reviewing the VMMBZ33C1HD1HG3-08 datasheet, VMMBZ33C1HD1HG3-08 pinout, VMMBZ33C1HD1HG3-08 application, or VMMBZ33C1HD1HG3-08 equivalent, this device is selected for compact board space, high-temperature operation (−55 °C to +150 °C), low-profile mounting (< 0.5 mm height), and AEC-Q101 qualification - critical for automotive infotainment, ADAS sensor interfaces, and industrial HMI touch controllers.
Technical Context
This diode operates as a unidirectional clamping device with cathode-anode polarity, leveraging silicon avalanche structure to limit transient overvoltage before downstream ICs are damaged. Its dynamic resistance of 0.34 Ω (TLP, 100 ns) ensures fast response and minimal voltage overshoot during sub-nanosecond ESD events.
The DFN1006-2A footprint supports automated optical inspection (AOI) and reflow soldering up to 260 °C peak temperature, with MSL level 1 moisture sensitivity and UL 94 V-0 molding compound - meeting stringent automotive assembly and reliability requirements without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage (VRWM) | 28 V - maximum continuous DC operating voltage before leakage exceeds 1 µA; defines safe working range for 24 V automotive buses. |
| Breakdown Voltage (VBR) | 31.3–34.7 V @ 1 mA - precise threshold where avalanche conduction begins; enables predictable clamping onset across temperature. |
| Clamping Voltage (VC) | 40–59 V @ 1.7 A, 8/20 μs - limits transient voltage seen by protected IC; critical for safeguarding 3.3 V or 5 V logic inputs. |
| ESD Immunity | ±15 kV contact / ±15 kV air (IEC 61000-4-2) - meets Level 4 system-level ESD compliance for exposed connectors and buttons. |
| Capacitance (CD) | 13.6–18.6 pF @ 0 V, 1 MHz - low enough to avoid signal integrity degradation on USB 2.0 (480 Mbps) or CAN FD (5 Mbps) lines. |
| Operating Temperature | −55 °C to +150 °C - supports under-hood and engine-control module deployment without thermal derating. |
| Package | DFN1006-2A (1.0 × 0.6 × 0.4 mm) - ultra-compact, bottom-terminal footprint compatible with fine-pitch PCB routing and high-density layouts. |
Pinout & Package
DFN1006-2A package: 2-terminal surface-mount device with cathode marked by bar on top surface; dimensions 1.0 mm × 0.6 mm × max. 0.4 mm height; land pattern per Vishay S8-V-3906.04-059.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input side of protected line | Connected to signal source or connector; carries normal signal current and diverts ESD transients toward ground path. |
| Cathode (Pin 2) | Ground reference terminal | Must be tied to low-inductance chassis or system ground plane; establishes clamping reference and completes protection loop. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Enables integration on DC-biased lines (e.g., CAN_H, LIN bus) without forward-conduction interference during normal operation. |
| AEC-Q101 qualified variant available | Validated for automotive-grade reliability including HTOL, TC, and ESD stress - required for Tier-1 supplier BOMs. |
| Low dynamic resistance (0.34 Ω) | Minimizes voltage overshoot during fast TLP pulses, improving protection margin for sensitive analog front-ends. |
| Lead (Pb)-free Sn (e3) terminations | Complies with RoHS and JEDEC J-STD-020; supports standard reflow profiles and AOI-compatible visual inspection. |
| MSL level 1 rating | Allows indefinite floor life before reflow; eliminates baking requirements and simplifies SMT line logistics. |
Applications
| Automotive Infotainment Display Interface | Industrial CAN FD Node Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+/D− lines between head unit MCU and touch display panel in vehicles. IC Role / Device Role / Timing Role: Unidirectional ESD clamp placed inline between connector and PHY, with cathode grounded to chassis. Use Value: 16.1 pF capacitance avoids signal rise-time degradation at 480 Mbps; ±15 kV ESD rating covers hot-plug and service technician handling. |
Use Scenario: Safeguarding CAN FD transceiver pins (CAN_H/CAN_L) against ESD in factory automation gateways. IC Role / Device Role / Timing Role: One VMMBZ33C1HD1HG3-08 per line, mounted directly at connector entry point to minimize inductance. Use Value: 28 V VRWM matches 24 V supply rail; 40–59 V clamping prevents transceiver latch-up while maintaining common-mode range. |
| Automotive ADAS Camera Link | Medical Patient Monitor Sensor Port |
Use Scenario: Shielding MIPI CSI-2 clock/data lanes from ESD during camera module installation in rear-view systems. IC Role / Device Role / Timing Role: Single-line protection on each differential pair, with ground return via shortest possible trace. Use Value: DFN1006-2A size fits tight spacing between flex cable ZIF connectors and image sensor ASIC; <0.5 mm height avoids mechanical interference. |
Use Scenario: Protecting analog sensor inputs (e.g., SpO₂, ECG leads) connected to patient monitor front-end ADCs. IC Role / Device Role / Timing Role: Clamping transient energy before it reaches precision op-amp input stage or SAR ADC reference node. Use Value: 0.001 µA max leakage at 28 V ensures no DC offset error; −55 °C to +150 °C range accommodates sterilization cycles and ambient storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD-protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/57T | DO-214AC package (4.5 × 2.7 mm); higher clamping (64.3 V @ 5.2 A); 22 pF capacitance. | Not suitable for high-speed data lines due to larger size and higher capacitance; better for power-rail or lower-frequency analog protection. | Select when board space allows larger footprint and signal bandwidth is below 100 MHz. |
| TPD2E001DRYR | 2-channel bidirectional array in DFN1006-3; 3.3 V VRWM; 10 pF; integrated 10 kΩ series resistors. | Designed for USB 2.0 data pairs; incompatible with 24 V bias rails due to low VRWM; requires different layout strategy. | Select only for dual-line, low-voltage, bidirectional protection - not a functional replacement for VMMBZ33C1HD1HG3-08. |
Compared with SMAJ33A-E3/57T and TPD2E001DRYR, VMMBZ33C1HD1HG3-08 uniquely balances 28 V working voltage, ultra-low capacitance, miniature DFN1006-2A size, and AEC-Q101 readiness - making it optimal for space-constrained, high-reliability 24 V interface protection where speed and thermal robustness are prioritized.
Availability
VMMBZ33C1HD1HG3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial CAN FD nodes, and ADAS camera links requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for VMMBZ33C1HD1HG3-08 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, passive elements, and sensors, with emphasis on reliability, precision, and automotive-grade qualification.
VMMBZ33C1HD1HG3-08 belongs to Vishay's VMMBZxxC1HD1 family of unidirectional ESD diodes engineered for compact, high-temperature, high-immunity protection of automotive and industrial signal lines.
FAQ
What is the maximum clamping voltage of VMMBZ33C1HD1HG3-08 under IEC 61000-4-5 surge conditions?
The VMMBZ33C1HD1HG3-08 exhibits a reverse clamping voltage of 40–59 V at 1.7 A peak pulse current with an 8/20 μs waveform per IEC 61000-4-5. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance remains stable across its full operating temperature range of −55 °C to +150 °C.
Is VMMBZ33C1HD1HG3-08 qualified to AEC-Q101?
VMMBZ33C1HD1HG3-08 is offered in an AEC-Q101 qualified version - specifically indicated by the "H" in the ordering code (e.g., VMMBZ33C1HD1HG3-08). This qualification confirms successful completion of stress tests including high-temperature operating life, temperature cycling, and ESD robustness per automotive reliability standards. Always verify qualification status using the full part number and Vishay's official documentation.
What is the capacitance of VMMBZ33C1HD1HG3-08 and how does it affect high-speed signal lines?
VMMBZ33C1HD1HG3-08 has a typical capacitance of 16.1 pF at 0 V and 1 MHz, with a min/max range of 13.6–18.6 pF. This low capacitance minimizes signal distortion and preserves edge integrity on high-speed interfaces such as USB 2.0 (480 Mbps) and CAN FD (5 Mbps). For comparison, higher-capacitance alternatives (>20 pF) would degrade rise/fall times and increase bit error rates in these applications.
Can VMMBZ33C1HD1HG3-08 be used on bidirectional signal lines like RS-485 or CAN?
VMMBZ33C1HD1HG3-08 is unidirectional and intended for DC-biased lines where the signal swings only above ground - such as CAN_H in a 24 V system. It is not suitable for fully bidirectional lines like RS-485 differential pairs without external biasing. For true bidirectional protection, a dedicated bidirectional ESD diode (e.g., VMMBZ33C1HD1's counterpart with symmetrical clamping) must be selected instead of VMMBZ33C1HD1HG3-08.
What is the recommended PCB footprint and soldering profile for VMMBZ33C1HD1HG3-08?
VMMBZ33C1HD1HG3-08 uses the DFN1006-2A package and requires the footprint specified in Vishay document S8-V-3906.04-059. Reflow soldering must follow J-STD-020, with peak temperature not exceeding 260 °C. The device is MSL level 1, so no dry-pack or baking is needed prior to assembly. Land patterns must ensure symmetric thermal mass to prevent tombstoning during reflow.
VMMBZ33C1HD1HG3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 0402 (1006 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 28V (Max)
- Voltage - Breakdown (Min):
- 31.3V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 300mA
- Power - Peak Pulse:
- 15W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 16.1pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006-2A
VMMBZ33C1HD1HG3-08 FAQ
1.How can I place an order for VMMBZ33C1HD1HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VMMBZ33C1HD1HG3-08 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 VMMBZ33C1HD1HG3-08 reliable?
The price and inventory of VMMBZ33C1HD1HG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VMMBZ33C1HD1HG3-08 is usually 5 days.
3.What payment methods are accepted for VMMBZ33C1HD1HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VMMBZ33C1HD1HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VMMBZ33C1HD1HG3-08?
VMMBZ33C1HD1HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VMMBZ33C1HD1HG3-08 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 VMMBZ33C1HD1HG3-08?
For technical support, including VMMBZ33C1HD1HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VMMBZ33C1HD1HG3-08 requirements.
6.How does Aetrix verify that VMMBZ33C1HD1HG3-08 is sourced from the original manufacturer or authorized distributors?
All VMMBZ33C1HD1HG3-08 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 VMMBZ33C1HD1HG3-08 meets industry standards.
7.What is the process for return or replacement of VMMBZ33C1HD1HG3-08?
All VMMBZ33C1HD1HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VMMBZ33C1HD1HG3-08, 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 VMMBZ33C1HD1HG3-08 part is unused and in its original packaging.
Return procedure for VMMBZ33C1HD1HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VMMBZ33C1HD1HG3-08 Tags
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