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Vishay General Semiconductor - Diodes Division SMB10J30AHE3_A/H
- Part No.:
- SMB10J30AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30AHE3_A/H.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,156
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Product details
Overview
SMB10J30AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 30 V stand-off voltage (VWM), 33.3–36.8 V breakdown voltage (VBR), 48.4 V clamping voltage (VC) at 20.7 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and power supply input stages.
For engineers reviewing the SMB10J30AHE3_A/H datasheet, SMB10J30AHE3_A/H pinout, SMB10J30AHE3_A/H application, or SMB10J30AHE3_A/H equivalent, this device is selected for robust ESD and lightning-induced surge suppression where AEC-Q101 qualification, low clamping ratio (<1.62×VWM), and MSL Level 1 reflow compatibility are required.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents <1.0 µA leakage at 30 V, then rapidly avalanches when transients exceed its 33.3 V minimum breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and repeatable clamping performance across temperature (–55 °C to +150 °C).
The SMB10J30AHE3_A/H uses a single PN junction structure with cathode-band polarity marking, optimized for fast response (<1 ns) and low incremental surge resistance - enabling effective suppression of 8/20 µs and 10/1000 µs surges without thermal runaway, even under repeated 100 A IFSM half-sine stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 3.3 V/5 V/12 V/24 V systems. |
| VBR (min/max) | 33.3 V / 36.8 V - breakdown occurs within this range at 1.0 mA test current; ensures predictable turn-on timing during overvoltage events. |
| VC @ IPPM | 48.4 V - clamps transients to ≤48.4 V at 20.7 A peak pulse current (10/1000 µs); limits downstream IC stress to safe levels. |
| PPPM | 1000 W - peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV line-to-ground) surge immunity. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage at rated stand-off voltage; prevents unnecessary power loss in battery-powered applications. |
| TJ max. | +150 °C - maximum junction temperature rating; enables operation in under-hood automotive and industrial environments. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability per stress test requirements including HTOL, TCT, and ESD HBM/MM. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge or DC bias conditions. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 30 V rail); avalanches into conduction when voltage exceeds VBR, shunting surge energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports deployment in ADAS sensors, body control modules, and infotainment power supplies. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns - eliminates pre-bake requirement in SMT assembly. |
| Glass passivated junction | Ensures stable electrical parameters over time and temperature; reduces parameter drift and improves long-term reliability in harsh environments. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage exposure to downstream components - critical for protecting 3.3 V or 5 V logic interfaces connected to higher-voltage buses. |
| 1000 W peak pulse power (10/1000 µs) | Handles high-energy transients such as load dump (ISO 7637-2 Pulse 5a) and EFT bursts without degradation - suitable for 24 V commercial vehicle systems. |
Applications
| Automotive Sensor Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ISO 16750-2 jump-start and load-dump transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between signal line and chassis ground, responding within <1 ns to clamp spikes above 33.3 V. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers by limiting voltage excursion to ≤48.4 V during 100 V/50 ms load dump events. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Standoff-mode protector mounted upstream of optocoupler input, conducting only during overvoltage events exceeding 30 V. Use Value: Enables reliable operation under IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) compliance testing up to 4 kV line-to-ground. |
| DC Power Supply Input Stage | Telecom Line Interface Protection |
|
Use Scenario: Front-end surge suppression for 24–48 V DC-DC converters in base station power distribution units. IC Role / Device Role / Timing Role: Primary clamping element parallel to bulk input capacitor, diverting surge current away from switching controller and MOSFETs. Use Value: Absorbs 1000 W transient energy without failure, maintaining system uptime during lightning-induced grid disturbances. |
Use Scenario: Secondary-level protection on low-voltage telecom interface cards (e.g., RS-485, Ethernet PHY power rails) exposed to building-wide surges. IC Role / Device Role / Timing Role: Fast-acting voltage clamp on 3.3 V or 5 V auxiliary rails feeding PHY ICs and magnetics bias windings. Use Value: Limits clamping voltage to 48.4 V while maintaining <1 µA leakage - avoids false triggering of brown-out detectors during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-E3/52 | Same VWM (30 V), VBR (33.3–36.8 V), and PPPM (1000 W), but commercial-grade (non-AEC-Q101) and RoHS-compliant only (no halogen-free option). | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select SMBJ30A-E3/52 when cost sensitivity outweighs automotive reliability requirements and halogen-free materials are not specified. |
| SMCJ30A-13-F | Higher package thermal mass (SMC/DO-214AB), 1500 W PPPM rating, same VWM/VBR range, but larger footprint and higher RθJA (50 °C/W vs. 72 °C/W). | Better suited for high-repetition surge environments due to superior heat dissipation; requires PCB area increase (~30% larger pad layout). | Choose SMCJ30A-13-F when system-level surge duty cycle exceeds single-event specification and board space permits larger package. |
Compared with SMBJ30A-E3/52, SMB10J30AHE3_A/H adds AEC-Q101 qualification and halogen-free construction; versus SMCJ30A-13-F, it trades peak power headroom for compact SMB footprint and tighter thermal constraints - making it optimal for space-constrained automotive modules requiring validated reliability.
Availability
SMB10J30AHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, and DC power supply input stages requiring stable component supply, AEC-Q101 traceability, and consistent surge performance across production batches.
Supply support for SMB10J30AHE3_A/H 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMB10J series targets high-power-density transient suppression in automotive and industrial systems, combining AEC-Q101 qualification, low-profile packaging, and precise clamping performance for next-generation electronic control units.
FAQ
What is the clamping voltage of SMB10J30AHE3_A/H at its rated peak pulse current?
The SMB10J30AHE3_A/H has a maximum clamping voltage (VC) of 48.4 V at 20.7 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 standards and reflects the actual voltage seen by protected circuitry during worst-case surge events - ensuring downstream 3.3 V or 5 V ICs remain within absolute maximum ratings.
Is SMB10J30AHE3_A/H suitable for automotive applications?
Yes, SMB10J30AHE3_A/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials. It meets automotive environmental stress requirements including high-temperature operating life, thermal cycling, and electrostatic discharge - making it appropriate for use in engine control units, ADAS camera modules, and body electronics where reliability under vibration and temperature extremes is mandatory.
What does the "HE3" suffix indicate in SMB10J30AHE3_A/H?
The "HE3" suffix in SMB10J30AHE3_A/H denotes RoHS-compliant construction with AEC-Q101 qualification and halogen-free molding compound. The "_A/H" revision code specifies packaging in 7″ tape-and-reel format (H) and indicates the latest revision level (A) per Vishay's document control system - ensuring full compliance with automotive supply chain material declarations and process validation requirements.
How does SMB10J30AHE3_A/H compare to bidirectional TVS diodes like SMB8J30CA?
SMB10J30AHE3_A/H is unidirectional and optimized for DC rail protection with asymmetric conduction - conducting only in reverse avalanche mode and blocking forward current beyond VF ≈ 3.5 V at 50 A. In contrast, SMB8J30CA is bidirectional (symmetrical VBR), intended for AC-coupled or floating signal lines. Their clamping voltages differ: SMB10J30AHE3_A/H clamps at 48.4 V, while SMB8J30CA clamps at 48.4 V in both directions but with lower PPPM (800 W vs. 1000 W).
What is the thermal resistance of SMB10J30AHE3_A/H, and how does it affect layout design?
SMB10J30AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard PCB copper area - reducing pad size increases thermal impedance and risks junction overheating during repetitive surges. Layout must follow Vishay's recommended mounting pad dimensions (0.086″ min. width, 0.220″ ref. length) to maintain rated power handling and avoid derating.
SMB10J30AHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 20.7A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J30AHE3_A/H FAQ
1.How can I place an order for SMB10J30AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30AHE3_A/H 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 SMB10J30AHE3_A/H reliable?
The price and inventory of SMB10J30AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMB10J30AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30AHE3_A/H?
SMB10J30AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30AHE3_A/H 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 SMB10J30AHE3_A/H?
For technical support, including SMB10J30AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30AHE3_A/H requirements.
6.How does Aetrix verify that SMB10J30AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J30AHE3_A/H 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 SMB10J30AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J30AHE3_A/H?
All SMB10J30AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30AHE3_A/H, 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 SMB10J30AHE3_A/H part is unused and in its original packaging.
Return procedure for SMB10J30AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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