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Vishay General Semiconductor - Diodes Division SMB10J33A-E3/5B
- Part No.:
- SMB10J33A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J33A-E3/5B.pdf
- Description:
- TVS DIODE 33VWM 53.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,135
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Product details
Overview
SMB10J33A-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 1000 W peak pulse power (10/1000 μs), 33 V stand-off voltage (VWM), and 53.3 V clamping voltage at 18.8 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive powertrain and industrial motor control circuits.
For engineers reviewing the SMB10J33A-E3/5B datasheet, SMB10J33A-E3/5B pinout, SMB10J33A-E3/5B application, or SMB10J33A-E3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a clamping device that enters avalanche breakdown when reverse voltage exceeds its 36.7–40.6 V breakdown range (at 1 mA test current), limiting transient-induced overvoltage to ≤53.3 V at 18.8 A. Its glass-passivated junction ensures stable leakage (<1.0 μA at 33 V) and fast response time (<1 ns).
Thermal performance is defined by 72 °C/W junction-to-ambient thermal resistance (RθJA) and 20 °C/W junction-to-lead (RθJL), enabling reliable operation up to 150 °C junction temperature under pulsed conditions per Fig. 2 derating curves. The device meets MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 36.7 V / 40.6 V - breakdown voltage range at 1 mA, defining turn-on threshold tolerance |
| VC @ IPPM | 53.3 V - clamped voltage during 18.8 A 10/1000 μs surge, directly limiting protected circuit stress |
| PPPM | 1000 W - peak pulse power handling capability under standard 10/1000 μs waveform |
| ID @ VWM | ≤1.0 μA - ultra-low reverse leakage at rated stand-off, minimizing standby power loss |
| TJ max | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Polarity | Unidirectional - cathode-marked device for DC-biased protection paths only |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surges or bias |
| Cathode | Avalanche clamping terminal | Marked end; connected to higher-potential side; conducts reverse avalanche current during transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements |
| Glass passivated junction | Ensures stable electrical parameters and long-term reliability under thermal cycling |
| MSL Level 1 | Compatible with standard reflow profiles up to 260 °C peak without moisture-related failure |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| RoHS-compliant (E3 suffix) | Meets EU RoHS Directive 2011/65/EU with no restricted substances above threshold limits |
Applications
| Automotive Powertrain Control | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIO and CAN transceiver power rails against load dump and alternator ripple in engine control units. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between 12 V supply rail and ground, triggered within nanoseconds of overvoltage event. Use Value: Limits rail voltage to ≤53.3 V during 1000 W surges, preventing latch-up or permanent damage to 3.3 V/5 V logic interfaces. | Use Scenario: Safeguarding analog input channels of PLC analog modules from inductive kickback during solenoid valve switching. IC Role / Device Role / Timing Role: Standoff-mode protector on 24 V sensor supply line, conducting only during >33 V transients. Use Value: Maintains <1.0 μA leakage at 24 V nominal, avoiding measurement drift while clamping 18.8 A surges to safe levels. |
| Automotive Body Electronics | Consumer Appliance Motor Control |
Use Scenario: Shielding LIN bus transceivers and window lift motor drivers from ESD and switching noise in door modules. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC line upstream of linear regulator, with cathode tied to supply. Use Value: Withstands ±30 kV contact ESD (IEC 61000-4-2) and clamps fast transients without degrading signal integrity. | Use Scenario: Protecting MCU reset and communication pins in washing machine main control board exposed to relay bounce and pump back-EMF. IC Role / Device Role / Timing Role: Point-of-load TVS on 5 V supply rail feeding microcontroller and display driver ICs. Use Value: Provides 1000 W surge immunity without requiring additional series impedance or filtering components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A-E3/5B | Same SMB package, identical VWM (33 V), but lower PPPM (600 W) and higher VC (53.3 V vs. 53.3 V same, but lower IPPM = 11.3 A) | Not AEC-Q101 qualified; limited to commercial-grade industrial or consumer use | Select SMBJ33A-E3/5B only if AEC-Q101 compliance is not required and surge energy is ≤600 W |
| SMAJ33A-E3/5B | Smaller SMA (DO-214AC) package, same VWM (33 V), lower PPPM (400 W), higher thermal resistance (RθJA = 95 °C/W) | Limited power dissipation margin; unsuitable for sustained or repeated surges in high-temperature enclosures | Choose SMAJ33A-E3/5B only for space-constrained PCBs where peak surge energy stays below 400 W |
Compared with SMBJ33A-E3/5B and SMAJ33A-E3/5B, SMB10J33A-E3/5B delivers 67% higher surge power rating and automotive qualification-critical for engine bay or battery-connected systems where thermal margin and reliability validation are mandatory.
Availability
SMB10J33A-E3/5B is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive I/O protection, and consumer appliance motor control requiring stable component supply across extended production lifecycles.
Supply support for SMB10J33A-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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade validation.
The SMB10JxxA series targets high-energy transient suppression in harsh environments, engineered specifically for AEC-Q101 compliance and robust surge handling in automotive and industrial power systems.
FAQ
What is the clamping voltage of SMB10J33A-E3/5B at its rated peak pulse current?
The SMB10J33A-E3/5B has a maximum clamping voltage (VC) of 53.3 V at its rated peak pulse current (IPPM) of 18.8 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMB10J33A-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMB10J33A-E3/5B qualified for automotive applications?
Yes, SMB10J33A-E3/5B is AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88422, Revision: 09-Jan-2024). The "HE3" or "HM3" suffix denotes AEC-Q101 qualification; however, SMB10J33A-E3/5B uses the commercial "E3" suffix. Per Vishay's ordering table, SMB10J33A-E3/5B is *not* AEC-Q101 qualified - only variants with "HE3" or "HM3" suffixes are. Therefore, SMB10J33A-E3/5B is commercial-grade and not AEC-Q101 qualified.
What is the standoff voltage (VWM) and why is it critical for SMB10J33A-E3/5B selection?
The standoff voltage (VWM) of SMB10J33A-E3/5B is 33 V - the maximum continuous reverse voltage the device blocks without entering avalanche conduction. This parameter must exceed the normal operating voltage of the protected line (e.g., 24 V automotive systems or 28 V industrial supplies) with sufficient margin to avoid leakage-induced power loss or false triggering. Selecting SMB10J33A-E3/5B for a 33 V nominal rail requires careful derating analysis per Vishay's Fig. 2.
Does SMB10J33A-E3/5B have bidirectional capability?
No, SMB10J33A-E3/5B is a unidirectional TVS diode, as indicated by its part number suffix "A" (vs. "CA" for bidirectional versions like SMB8J33CA). It conducts only in reverse avalanche mode and must be installed with correct polarity - cathode toward the higher potential side of the protected line. Bidirectional operation requires separate part numbers explicitly marked with "CA".
What packaging format does SMB10J33A-E3/5B ship in?
SMB10J33A-E3/5B ships in 13-inch diameter plastic tape and reel format, with a base quantity of 3200 units per reel (ordering code suffix "/5B"). The device is compatible with standard SMT pick-and-place equipment and meets J-STD-002 solderability requirements. Lead finish is matte tin, and the package complies with UL 94 V-0 flammability rating.
SMB10J33A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 18.8A
- 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)
SMB10J33A-E3/5B FAQ
1.How can I place an order for SMB10J33A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J33A-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 SMB10J33A-E3/5B reliable?
The price and inventory of SMB10J33A-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 SMB10J33A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMB10J33A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J33A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J33A-E3/5B?
SMB10J33A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J33A-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 SMB10J33A-E3/5B?
For technical support, including SMB10J33A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J33A-E3/5B requirements.
6.How does Aetrix verify that SMB10J33A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMB10J33A-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 SMB10J33A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMB10J33A-E3/5B?
All SMB10J33A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J33A-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 SMB10J33A-E3/5B part is unused and in its original packaging.
Return procedure for SMB10J33A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J33A-E3/5B Tags
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