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Vishay General Semiconductor - Diodes Division SMB10J33-E3/52
- Part No.:
- SMB10J33-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J33-E3/52.pdf
- Description:
- TVS DIODE 33VWM 59VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,102
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Product details
Overview
SMB10J33-E3/52 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 33 V stand-off voltage (VWM), 36.7–40.6 V breakdown voltage (VBR), 53.3 V clamping voltage (VC) at 18.8 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the SMB10J33-E3/52 datasheet, SMB10J33-E3/52 pinout, SMB10J33-E3/52 application, or SMB10J33-E3/52 equivalent, key selection criteria include clamping performance under 1000 W surges, AEC-Q101 qualification for automotive use, RoHS-compliant matte tin terminations, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 33 V (VWM), triggers avalanche conduction at ≥36.7 V (VBR), and limits transient voltages to ≤53.3 V (VC) during 10/1000 µs surges up to 18.8 A. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at VWM).
Thermal design relies on RθJA = 72 °C/W (typ.) and RθJL = 20 °C/W (typ.), with maximum junction temperature of 150 °C. The device meets MSL Level 1 (JEDEC J-STD-020) and passes JESD201 Class 1A whisker testing - confirming suitability for lead-free reflow and long-term reliability in harsh environments.
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 at 1.0 mA - guaranteed avalanche initiation range for predictable turn-on |
| VC @ IPPM | 53.3 V at 18.8 A (10/1000 µs) - peak clamped voltage limiting stress on downstream ICs |
| PPPM | 1000 W - surge energy handling capacity per single transient event |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserving signal integrity and standby power |
| TJ max. | 150 °C - enables operation in under-hood automotive and industrial ambient conditions |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile plastic case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line (e.g., +12 V rail) | Low forward voltage drop (VF ≈ 3.5 V at 50 A) supports surge current conduction without latch-up |
| Cathode | Current exit point in forward bias; tied to ground or lower-potential reference | Marked by color band; defines polarity-sensitive placement - critical for unidirectional clamping function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift |
| MSL Level 1 rating | Enables direct placement into lead-free reflow without baking or moisture sensitivity concerns |
| Low incremental surge resistance | Minimizes VC rise under high di/dt transients - improves clamping precision for fast ESD/EFT events |
| RoHS-compliant & whisker-tested (JESD201 Class 1A) | Meets global environmental compliance and long-term interconnect reliability requirements |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power input and ground, triggered within nanoseconds. Use Value: Clamps 1000 W surges to ≤53.3 V, preventing damage to MCU power supplies and CAN transceivers rated for 36 V absolute max. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) in factory automation sensors exposed to EFT bursts. IC Role / Device Role / Timing Role: Bidirectional-capable protection element (though SMB10J33-E3/52 is unidirectional, used with series impedance for signal line robustness). Use Value: Limits induced transients to <53.3 V while maintaining <1.0 µA leakage - preserving loop accuracy and avoiding false triggering. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
|
Use Scenario: Securing 48 V PoE-powered equipment inputs against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with upstream fuses and secondary-stage MOVs. Use Value: Withstands 1000 W pulses and 100 A non-repetitive forward surge (IFSM), enabling robust front-end hardening without derating. |
Use Scenario: Adding secondary-side overvoltage protection to AC/DC adapters supplying USB-C PD or smart home hubs. IC Role / Device Role / Timing Role: Final-clamp device after primary regulation, absorbing residual switching spikes and ESD. Use Value: 33 V VWM aligns with 24–36 V adapter outputs; 53.3 V VC ensures downstream LDOs and PMICs remain within safe SOA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A-E3/52 | Same VWM (33 V), identical DO-214AA package, but rated for 600 W PPPM (vs. 1000 W) | Limited to lower-energy transients; not suitable for ISO 7637-2 load dump or telecom lightning tests | Select SMB10J33-E3/52 when 1000 W surge immunity is required; SMBJ33A-E3/52 only where cost drives down-spec selection |
| 1.5KE33A | Through-hole DO-201 package, same 33 V VWM, 1000 W PPPM, but higher RθJA (≈100 °C/W) and no AEC-Q101 qualification | Not suitable for automotive SMT production or space-constrained PCBs; requires wave soldering | Choose SMB10J33-E3/52 for SMT scalability, automotive qualification, and thermal performance; 1.5KE33A only for legacy through-hole designs |
Compared with SMBJ33A-E3/52 and 1.5KE33A, SMB10J33-E3/52 uniquely combines 1000 W surge capability, AEC-Q101 qualification, and DO-214AA SMT compatibility - making it the only option meeting both automotive production and high-energy telecom surge standards in a single footprint.
Availability
SMB10J33-E3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply across extended temperature ranges and high-reliability manufacturing.
Supply support for SMB10J33-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10Jxx series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, AEC-Q101-compliant transient suppression in automotive and industrial power systems.
FAQ
What is the clamping voltage of SMB10J33-E3/52 under a 10/1000 µs surge?
The SMB10J33-E3/52 clamps to a maximum of 53.3 V when subjected to its rated 18.8 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet Document Number 88422, page 2 - ensuring predictable overvoltage limiting for downstream ICs.
Is SMB10J33-E3/52 suitable for automotive applications?
Yes, SMB10J33-E3/52 is AEC-Q101 qualified and explicitly tested for automotive-grade reliability, including temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock. Its DO-214AA package, MSL Level 1 rating, and 150 °C TJ max make it appropriate for engine control modules, body controllers, and ADAS power domains.
What does the "-E3/52" suffix indicate in SMB10J33-E3/52?
The "-E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "/52" specifies packaging in 7″ diameter plastic tape and reel, with a base quantity of 750 units. This format ensures compatibility with standard SMT pick-and-place equipment and supports high-volume automated assembly.
How does SMB10J33-E3/52 differ from bi-directional variants like SMB8J33CA?
SMB10J33-E3/52 is unidirectional with anode-cathode polarity and a cathode band marking; SMB8J33CA is bi-directional (no polarity marking) and rated for 800 W PPPM (vs. 1000 W). The unidirectional SMB10J33-E3/52 offers lower clamping voltage and higher surge rating - ideal for DC power line protection where polarity is fixed.
What is the maximum reverse leakage current for SMB10J33-E3/52 at its stand-off voltage?
At its 33 V stand-off voltage (VWM), SMB10J33-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, as specified in the Vishay datasheet (Document Number 88422, page 2). This ultra-low leakage preserves signal integrity and minimizes standby power loss in always-on systems.
SMB10J33-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 59V
- Current - Peak Pulse (10/1000µs):
- 16.9A
- 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)
SMB10J33-E3/52 FAQ
1.How can I place an order for SMB10J33-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J33-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 SMB10J33-E3/52 reliable?
The price and inventory of SMB10J33-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 SMB10J33-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J33-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J33-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J33-E3/52?
SMB10J33-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J33-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 SMB10J33-E3/52?
For technical support, including SMB10J33-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J33-E3/52 requirements.
6.How does Aetrix verify that SMB10J33-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J33-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 SMB10J33-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J33-E3/52?
All SMB10J33-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J33-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 SMB10J33-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J33-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J33-E3/52 Tags
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