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Vishay General Semiconductor - Diodes Division SMB10J30A-E3/52
- Part No.:
- SMB10J30A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30A-E3/52.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:383
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Product details
Overview
SMB10J30A-E3/52 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) at 1 mA, 1000 W peak pulse power (10/1000 µs), 20.7 A peak pulse current (IPPM), and clamps to ≤48.4 V under surge conditions - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMB10J30A-E3/52 datasheet, SMB10J30A-E3/52 pinout, SMB10J30A-E3/52 application, or SMB10J30A-E3/52 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 72 °C/W), RoHS-compliant E3 suffix, and real-world clamping behavior critical for IEC 61000-4-5 surge compliance validation.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (33.3–36.8 V), it avalanches to limit transient energy across protected circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at 30 V) and fast response (<1 ns), while low incremental surge resistance enables effective suppression of 10/1000 µs surges up to 1000 W.
Rated for -55 °C to +150 °C junction operation and qualified to AEC-Q101, SMB10J30A-E3/52 supports automotive-grade reliability. The SMB package provides 72 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads, enabling robust thermal management without heatsinking in space-constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 24 V systems. |
| VBR (Breakdown Voltage) | 33.3–36.8 V at 1 mA - precise avalanche initiation range ensuring predictable clamping onset with tight tolerance. |
| VC (Clamping Voltage) | ≤48.4 V at IPPM = 20.7 A - limits transient voltage seen by downstream ICs during 10/1000 µs surge events. |
| PPPM (Peak Pulse Power) | 1000 W (10/1000 µs) - sustains high-energy transients common in automotive load-dump and inductive switching. |
| ID (Reverse Leakage) | ≤1.0 µA at 30 V - negligible standby current draw, preserving battery life and signal integrity in always-on circuits. |
| TJ max. | +150 °C - supports under-hood automotive environments and industrial enclosures with elevated ambient temperatures. |
| RθJA | 72 °C/W - enables thermal design on standard FR-4 with 5 mm × 5 mm copper pads; no forced air or heatsink required for typical duty cycles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Polarity indicated by cathode band (banded end = cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; completes shunt path during transient clamping. |
| Cathode | Protected line connection | Connected to line being protected (e.g., 24 V rail input); avalanche conduction occurs from cathode to anode when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure. |
| Low profile SMB package | Height ≤0.086" (2.20 mm) enables use in ultra-thin modules and dense automotive ECUs. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns. |
| RoHS-compliant E3 suffix | Meets EU RoHS Directive 2011/65/EU and JESD201 Class 2 whisker resistance. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply input of an automotive ADAS camera module against load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VIN and GND, clamping transients before they reach DC-DC converter input. Use Value: Limits voltage to ≤48.4 V during 1000 W surges, preventing damage to upstream regulators and meeting OEM surge immunity requirements. |
Use Scenario: Safeguarding analog output (4–20 mA) line of a pressure sensor in factory automation against ESD and cable-induced transients. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode grounded) used on signal line referenced to system ground. Use Value: Sub-1 ns response and <1 µA leakage preserve signal accuracy while suppressing ±1 kV ESD (IEC 61000-4-2) and 40 V ring waves (IEC 61000-4-12). |
| Telecom DC Power Feeding | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing PoE-powered network switch DC input against lightning-induced surges on outdoor Ethernet runs. IC Role / Device Role / Timing Role: Primary shunt clamp on 48 V DC feed line, coordinated with upstream gas discharge tube (GDT) for staged protection. Use Value: 1000 W PPPM handles high-energy longitudinal surges; 72 °C/W RθJA allows reliable operation without derating in sealed enclosures. |
Use Scenario: Shielding microcontroller GPIOs and gate drivers in smart washing machine motor control board from inductive kickback. IC Role / Device Role / Timing Role: Localized TVS on MOSFET gate drive traces and MCU power pins to suppress sub-100 ns spikes from relay/brushed motor switching. Use Value: Fast avalanche response prevents latch-up or oxide breakdown in CMOS inputs; RoHS/E3 compliance supports global market certification. |
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 SMB package, identical VWM/VBR/VC specs, but rated for 600 W PPPM (vs. 1000 W). | Limited to lower-energy transients (e.g., IEC 61000-4-4 EFT), not suitable for ISO 16750-2 load dump. | Select SMBJ30A-E3/52 only if system-level surge testing confirms <600 W requirement and cost optimization is prioritized. |
| SMCJ30A-E3/52 | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 35 °C/W vs. 72 °C/W. | Better thermal performance allows higher duty-cycle surge handling; requires 30% more PCB area. | Choose SMCJ30A-E3/52 when sustained surge repetition or elevated ambient temperature (>105 °C) demands lower thermal resistance. |
Compared with SMBJ30A-E3/52 and SMCJ30A-E3/52, SMB10J30A-E3/52 uniquely balances 1000 W surge capability with SMB footprint - enabling automotive-grade protection without layout redesign or thermal derating penalties.
Availability
SMB10J30A-E3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feeding requiring stable component supply, AEC-Q101 qualification, and RoHS compliance.
Supply support for SMB10J30A-E3/52 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, rectifiers, and protection devices with emphasis on reliability, power density, and automotive qualification.
SMB10J30A-E3/52 belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for robust transient suppression in harsh environments where space, thermal constraints, and AEC-Q101 compliance are critical.
FAQ
What is the clamping voltage of SMB10J30A-E3/52 at its rated peak pulse current?
The SMB10J30A-E3/52 clamps to a maximum of 48.4 V when subjected to its specified peak pulse current of 20.7 A (10/1000 µs waveform). This value is measured under standardized test conditions per ANSI/IEEE C62.35 and guarantees voltage limiting for downstream components during surge events. The SMB10J30A-E3/52 achieves this clamping performance while maintaining low incremental resistance, making it suitable for protecting sensitive 24 V automotive electronics.
Is SMB10J30A-E3/52 qualified for automotive applications?
Yes, SMB10J30A-E3/52 is AEC-Q101 qualified, confirming its suitability for automotive electronic systems including engine control, body electronics, and ADAS modules. The "HE3" variant carries explicit AEC-Q101 qualification, but the E3 suffix in SMB10J30A-E3/52 denotes RoHS-compliant commercial grade - and the underlying SMB10J30A die is AEC-Q101 qualified per Vishay documentation. SMB10J30A-E3/52 meets stress test requirements for temperature cycling, humidity, and mechanical shock relevant to under-hood deployment.
What does the "-E3/52" suffix indicate in SMB10J30A-E3/52?
The "-E3/52" suffix in SMB10J30A-E3/52 specifies two attributes: "E3" indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 2 whisker resistance; "/52" denotes packaging in 7-inch diameter plastic tape and reel, with a base quantity of 750 units per reel. This format ensures compatibility with automated SMT placement equipment and supports high-volume manufacturing workflows for SMB10J30A-E3/52.
How does SMB10J30A-E3/52 differ from SMBJ30A-E3/52?
SMB10J30A-E3/52 delivers 1000 W peak pulse power (10/1000 µs), whereas SMBJ30A-E3/52 is rated for 600 W - a 67% higher surge capacity. Both share identical VWM (30 V), VBR (33.3–36.8 V), and VC (≤48.4 V), but SMB10J30A-E3/52 achieves higher power handling via optimized chip geometry and thermal design within the same SMB package. This makes SMB10J30A-E3/52 appropriate for ISO 16750-2 load dump protection where SMBJ30A-E3/52 would thermally saturate.
What is the maximum operating temperature for SMB10J30A-E3/52?
The SMB10J30A-E3/52 has a maximum junction temperature (TJ max.) of +150 °C and an operating junction/storage temperature range of -55 °C to +150 °C. This rating enables reliable operation in under-hood automotive environments and industrial enclosures exposed to elevated ambient temperatures. Its thermal resistance (RθJA = 72 °C/W) is characterized on 0.2" × 0.2" copper pads, allowing accurate thermal modeling without additional heatsinking for typical surge duty cycles.
SMB10J30A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J30A-E3/52 FAQ
1.How can I place an order for SMB10J30A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30A-E3/52 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 SMB10J30A-E3/52 reliable?
The price and inventory of SMB10J30A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J30A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J30A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30A-E3/52?
SMB10J30A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30A-E3/52 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 SMB10J30A-E3/52?
For technical support, including SMB10J30A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30A-E3/52 requirements.
6.How does Aetrix verify that SMB10J30A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J30A-E3/52 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 SMB10J30A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J30A-E3/52?
All SMB10J30A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30A-E3/52, 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 SMB10J30A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J30A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30A-E3/52 Tags
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