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Vishay General Semiconductor - Diodes Division SMB10J30HE3/52
- Part No.:
- SMB10J30HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30HE3/52.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,716
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Product details
Overview
SMB10J30HE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for high-energy surge protection on power and signal lines. It features a 30 V stand-off voltage (VWM), 48.4 V maximum clamping voltage at 20.7 A peak pulse current (10/1000 µs), 1000 W peak pulse power rating, and AEC-Q101 qualification for automotive electronics.
For engineers reviewing the SMB10J30HE3/52 datasheet, SMB10J30HE3/52 pinout, SMB10J30HE3/52 application, or SMB10J30HE3/52 equivalent, this device is selected for robust overvoltage protection in DC power rails, automotive ECUs, and industrial sensor interfaces where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.61), and MSL Level 1 reflow compatibility are critical.
Technical Context
This TVS diode operates as a voltage-clamped crowbar during transients: when reverse voltage exceeds its 33.3–36.8 V breakdown range (at 1 mA), it avalanches to limit downstream voltage to ≤48.4 V. Its glass-passivated junction ensures stable leakage (<1 µA at 30 V) and long-term reliability under repeated surges.
Thermally, it delivers 1000 W peak pulse power with RθJA = 72 °C/W and RθJL = 20 °C/W, enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 48.4 V - Clamped voltage at 20.7 A peak pulse (10/1000 µs); determines worst-case stress on protected ICs. |
| PPPM | 1000 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity. |
| IR @ VWM | <1 µA - Reverse leakage at 30 V; negligible power loss and no measurable loading on 30 V supply rails. |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | DO-214AA (SMB) - Surface-mount package with 2.13–2.44 mm body width; compatible with automated pick-and-place. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking on one end; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential node; completes conduction path during reverse avalanche. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 30 V rail); color band identifies this terminal for correct PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass passivated junction | Eliminates surface contamination sensitivity and improves long-term stability of breakdown voltage and leakage. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements. |
| Low incremental surge resistance | Enables tighter clamping (VC/VWM = 1.61) versus competing TVS devices, reducing voltage overshoot on protected nodes. |
| 1000 W peak pulse power (10/1000 µs) | Withstands ≥100 surges at full rating per JEDEC JESD22-A114, supporting multi-event surge environments. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 30 V battery-fed control modules (e.g., body control units) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 30 V rail and chassis ground to clamp transients above 33.3 V. Use Value: Limits peak voltage to 48.4 V during 1000 W surges, preventing damage to 40 V-rated power management ICs and microcontrollers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS connected across sensor output line and ground to absorb ESD and switching noise from nearby solenoids. Use Value: Sub-1 ns response and <1 µA leakage preserve signal integrity and accuracy while surviving 8 kV contact ESD per IEC 61000-4-2. |
| DC-DC Converter Input Protection | Telecom Power Supply Clamp |
|
Use Scenario: Shielding buck converter inputs in telecom base station power supplies from lightning-induced surges on -48 V distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS installed upstream of input filter capacitors to divert surge energy before reaching controller ICs. Use Value: 1000 W rating handles 10/1000 µs surges up to 4 kV (2 Ω source), maintaining converter uptime during grid disturbances. |
Use Scenario: Clamping overvoltage on -48 V telecom backup power feeds during hot-swap events or rectifier failures. IC Role / Device Role / Timing Role: TVS placed between -48 V bus and return to clamp positive-going transients exceeding 30 V standoff. Use Value: AEC-Q101 qualification and 150 °C max junction temperature ensure reliability in sealed, high-ambient telecom cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30AHE3/52 | Same DO-214AA package, identical VWM (30 V), VC (48.4 V), and PPPM (1000 W); differs only in part numbering convention (SMBJ vs SMB10J). | No functional difference; both rated for same surge waveforms and thermal conditions. | Select SMBJ30AHE3/52 if legacy design documentation references SMBJ-series nomenclature. |
| SMCJ30AHE3/52 | DO-214AB (SMC) package; larger footprint (7.11 mm × 6.22 mm vs 4.57 mm × 3.94 mm); higher PPPM (1500 W) but same VWM and VC. | Requires PCB layout change; suited for higher-energy surge environments where space permits larger package. | Choose SMCJ30AHE3/52 only when >1000 W surge margin is required and board area allows SMC footprint. |
Compared with SMB10J30HE3/52, SMBJ30AHE3/52 offers identical electrical performance in the same compact SMB package, while SMCJ30AHE3/52 trades smaller size for higher power handling-making SMB10J30HE3/52 optimal for space-constrained automotive and industrial PCBs needing 1000 W protection.
Availability
SMB10J30HE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and telecom power supply designs requiring stable component supply, AEC-Q101 compliance, and RoHS-compliant manufacturing.
Supply support for SMB10J30HE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, surface-mount surge protection in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage range of SMB10J30HE3/52?
The SMB10J30HE3/52 has a minimum breakdown voltage (VBR) of 33.3 V and a maximum of 36.8 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent clamping behavior across production lots and temperature extremes, directly supporting its use in 30 V system protection where precise overvoltage thresholding is required.
Is SMB10J30HE3/52 suitable for automotive applications?
Yes, SMB10J30HE3/52 is AEC-Q101 qualified and carries the HE3 suffix confirming compliance with JESD 201 Class 2 whisker resistance and MSL Level 1 reflow capability. Its 150 °C maximum junction temperature and validated performance across temperature cycling make SMB10J30HE3/52 appropriate for under-hood and cabin ECU designs per ISO/TS 16949 requirements.
What does the 'HE3' suffix mean in SMB10J30HE3/52?
The 'HE3' suffix in SMB10J30HE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike the 'E3' commercial-grade variant, 'HE3' guarantees automotive-grade reliability testing including high-temperature operating life, unbiased highly accelerated stress testing, and mechanical shock-critical for SMB10J30HE3/52 deployment in safety-relevant systems.
How does SMB10J30HE3/52 compare to bi-directional TVS diodes with the same VWM?
SMB10J30HE3/52 is unidirectional and optimized for DC power line protection where polarity is fixed; bi-directional variants like SMB8J30CA offer symmetric clamping for AC or floating signal lines but have lower 800 W peak pulse power. For 30 V DC rails, SMB10J30HE3/52 provides 25% higher surge capacity and tighter clamping than its bi-directional counterpart, making it the preferred choice in automotive and industrial power systems.
What is the thermal resistance of SMB10J30HE3/52, and how does it affect layout?
SMB10J30HE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W and junction-to-lead (RθJL) of 20 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. To maintain safe operation below 150 °C junction temperature during repetitive surges, PCB layout must allocate adequate copper area-reducing RθJA by increasing pad size or adding internal ground planes directly beneath the SMB10J30HE3/52 footprint.
SMB10J30HE3/52 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:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 18.7A
- 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)
SMB10J30HE3/52 FAQ
1.How can I place an order for SMB10J30HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30HE3/52 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 SMB10J30HE3/52 reliable?
The price and inventory of SMB10J30HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30HE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J30HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30HE3/52?
SMB10J30HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30HE3/52 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 SMB10J30HE3/52?
For technical support, including SMB10J30HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30HE3/52 requirements.
6.How does Aetrix verify that SMB10J30HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J30HE3/52 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 SMB10J30HE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J30HE3/52?
All SMB10J30HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30HE3/52, 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 SMB10J30HE3/52 part is unused and in its original packaging.
Return procedure for SMB10J30HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30HE3/52 Tags
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