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Vishay General Semiconductor - Diodes Division SMB10J30-E3/5B
- Part No.:
- SMB10J30-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30-E3/5B.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,522
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Product details
Overview
SMB10J30-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AA (SMB) 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) at 1 mA, 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.
For engineers reviewing the SMB10J30-E3/5B datasheet, SMB10J30-E3/5B pinout, SMB10J30-E3/5B application, or SMB10J30-E3/5B equivalent, this device is selected for automotive power rail protection, industrial sensor interface hardening, and MOSFET gate driver surge suppression where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.45), and AEC-Q101 qualification are required.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ leakage at 30 V), then avalanches sharply at VBR to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The device is rated for 150 °C maximum junction temperature, exhibits 72 °C/W junction-to-ambient thermal resistance (RθJA), and meets J-STD-020 MSL Level 1 with 260 °C reflow peak - confirming suitability for automated SMT assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC operating margin. |
| VBR (Breakdown Voltage) | 33.3–36.8 V at 1 mA - Precise avalanche initiation threshold; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 48.4 V at IPPM = 20.7 A - Peak voltage seen by protected circuit during 1000 W surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 1000 W (10/1000 µs) - Energy-handling capacity for standard lightning/surge waveforms per IEC 61000-4-5. |
| ID (Reverse Leakage) | 1.0 µA max at 30 V - Negligible standby power loss and minimal interference with high-impedance sensing nodes. |
| TJ max | 150 °C - Enables operation in under-hood automotive or industrial environments without derating below full rating. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by color band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes shunt path during avalanche conduction. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 24 V rail); receives transient energy and triggers clamping when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low clamping ratio (VC/VBR) | ≈1.45 - Minimizes overvoltage stress on protected ICs compared to higher-ratio alternatives. |
| Glass-passivated junction | Stable VBR tolerance and long-term parameter drift < ±5 % over 1000 hrs HTOL - critical for safety-critical systems. |
| MSL Level 1 rating | 260 °C peak reflow compatibility - eliminates baking requirement and supports high-throughput SMT lines. |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics - enables drop-in use in Tier 1 BOMs without additional qualification. |
| Low incremental surge resistance | Ensures consistent clamping performance across multiple surges without thermal runaway or parameter shift. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units (ECUs) against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between VBAT and chassis ground, responding within <1 ns to clamp spikes up to 100 V. Use Value: Limits voltage seen by MCU and CAN transceivers to ≤48.4 V, preventing latch-up or permanent damage during 1000 W surges. |
Use Scenario: Hardening analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS placed across sensor output and return, absorbing ESD (IEC 61000-4-2) and inductive switching noise. Use Value: Maintains signal integrity with only 1.0 µA leakage at 30 V, while clamping 8 kV contact ESD events to safe levels for precision op-amps. |
| MOSFET Gate Driver Protection | Telecom DC Power Input |
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers in motor control inverters from Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Fast-acting unidirectional clamp between gate and source, triggered before gate oxide breakdown occurs. Use Value: Clamps gate-source voltage to ≤48.4 V within nanoseconds, preserving 20 V-rated gate oxide integrity during 100 ns dv/dt events. |
Use Scenario: Secondary-side surge protection on +48 V telecom rectifier outputs feeding base station RF modules. IC Role / Device Role / Timing Role: Primary shunt protector on DC distribution bus, coordinated with upstream MOVs and filters per GR-1089-CORE. Use Value: Handles repeated 10/1000 µs surges up to 1000 W without degradation, ensuring >10-year field life in outdoor cabinet deployments. |
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-E3/5B | Same DO-214AA package, identical VWM/VBR/VC ratings, but rated for 600 W PPPM (vs. 1000 W). | Lower energy handling limits use to lower-tier surges (e.g., IEC 61000-4-4 EFT only), not ISO 7637-2 load dump. | Select SMBJ30A-E3/5B only if system-level surge testing confirms ≤600 W requirements and cost optimization is prioritized. |
| SMCJ30A-E3/5B | DO-214AB (SMC) package, same electrical specs, but 1500 W PPPM rating and higher thermal mass (RθJA = 30 °C/W). | Supports higher ambient temperatures and repeated surges; requires larger PCB footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm). | Choose SMCJ30A-E3/5B when thermal management or multi-event robustness outweighs space constraints. |
Compared with SMBJ30A-E3/5B and SMCJ30A-E3/5B, SMB10J30-E3/5B uniquely balances 1000 W surge capability, SMB footprint, and AEC-Q101 qualification - making it optimal for space-constrained automotive and industrial designs requiring validated reliability without SMC-level board area.
Availability
SMB10J30-E3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, and telecom power supplies requiring stable component supply, RoHS compliance, and AEC-Q101 validation.
Supply support for SMB10J30-E3/5B 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 high-reliability and automotive-grade solutions.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in harsh-environment applications including automotive power distribution and industrial control systems.
FAQ
What is the clamping voltage of SMB10J30-E3/5B at its rated peak pulse current?
The SMB10J30-E3/5B has a maximum clamping voltage (VC) of 48.4 V at its peak pulse current (IPPM) of 20.7 A, measured with a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full-rated transient event and is confirmed in Vishay's datasheet Document Number 88422, page 2. The SMB10J30-E3/5B maintains this clamping performance across its qualified operating temperature range.
Is SMB10J30-E3/5B suitable for automotive applications?
Yes, SMB10J30-E3/5B is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet revision 12-Nov-12. It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 requirements. The SMB10J30-E3/5B is widely deployed in automotive body control modules, infotainment power supplies, and ADAS sensor interfaces where certified reliability is mandatory.
What does the "E3/5B" suffix indicate in SMB10J30-E3/5B?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD 201 Class 1A whisker resistance. The "5B" specifies packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This format ensures compatibility with high-speed pick-and-place equipment and supports automated manufacturing of SMB10J30-E3/5B in volume production.
How does SMB10J30-E3/5B differ from bi-directional variants like SMB8J30CA?
SMB10J30-E3/5B is unidirectional, with cathode marked and optimized for DC rail protection where polarity is fixed. In contrast, SMB8J30CA is bi-directional (no polarity marking), rated for 800 W PPPM and 16.5 A IPPM at 48.4 V VC. The SMB10J30-E3/5B delivers 25 % higher surge power and is AEC-Q101 qualified, whereas SMB8J30CA targets AC-coupled or bidirectional signal line protection without automotive certification.
What is the thermal resistance of SMB10J30-E3/5B, and how does it affect layout?
SMB10J30-E3/5B 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. To maintain safe operation at full 1000 W surge rating, PCB layout must provide adequate copper area and thermal vias - reducing RθJA improves sustained surge endurance and prevents thermal runaway during repetitive events. The SMB10J30-E3/5B datasheet recommends minimum pad dimensions shown in Figure 5.
SMB10J30-E3/5B 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J30-E3/5B FAQ
1.How can I place an order for SMB10J30-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30-E3/5B 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 SMB10J30-E3/5B reliable?
The price and inventory of SMB10J30-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J30-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30-E3/5B?
SMB10J30-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30-E3/5B 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 SMB10J30-E3/5B?
For technical support, including SMB10J30-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30-E3/5B requirements.
6.How does Aetrix verify that SMB10J30-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J30-E3/5B 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 SMB10J30-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J30-E3/5B?
All SMB10J30-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30-E3/5B, 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 SMB10J30-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J30-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30-E3/5B Tags
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