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Vishay General Semiconductor - Diodes Division SMB10J28A-E3/52
- Part No.:
- SMB10J28A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J28A-E3/52.pdf
- Description:
- TVS DIODE 28VWM 45.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,831
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Product details
Overview
SMB10J28A-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 with 1000 W peak pulse power (10/1000 µs), 28 V stand-off voltage (VWM), and 45.4 V maximum clamping voltage at 22.0 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive power electronics and industrial control systems.
For engineers reviewing the SMB10J28A-E3/52 datasheet, SMB10J28A-E3/52 pinout, SMB10J28A-E3/52 application, or SMB10J28A-E3/52 equivalent, key selection criteria include clamping performance under 10/1000 µs transients, AEC-Q101 qualification for automotive use, RoHS-compliant E3 suffix, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, activated when reverse voltage exceeds its 31.1–34.4 V breakdown range (tested at 1 mA). Its low incremental surge resistance and fast response time enable effective suppression of inductive switching spikes and ESD events in DC power rails and low-voltage signal paths.
Thermally, it features a junction-to-ambient thermal resistance of 72 °C/W (on recommended pad layout) and supports continuous operation from –55 °C to +150 °C. The matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and the device meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 24 V systems. |
| VBR min/max | 31.1 V / 34.4 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 45.4 V - Clamping voltage at 22.0 A peak pulse current; limits downstream voltage stress during surge events. |
| PPPM | 1000 W - Peak pulse power handling (10/1000 µs waveform); supports high-energy transients in automotive load-dump scenarios. |
| ID @ VWM | 1.0 µA - Reverse leakage at 28 V; negligible power loss and minimal impact on high-impedance sensor bias networks. |
| TJ max | +150 °C - Maximum junction temperature; enables reliable operation in under-hood automotive environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" × 0.130" footprint; compatible with standard SMT pick-and-place and reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with glass-passivated silicon junction, matte tin-plated leads, cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-banded end is opposite) | Connected to system ground or low-side return path; defines unidirectional current flow during clamping. |
| Cathode | Reverse-biased terminal (marked with color band) | Connected to protected line (e.g., 24 V rail or sensor output); conducts avalanche current when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Low profile SMB package | Height ≤ 0.096", enabling compact PCB layouts in space-constrained engine control units and ADAS modules. |
| 1000 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) surges without degradation when mounted on 5 mm × 5 mm copper pads. |
| Glass-passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives, critical for under-hood longevity. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak, simplifying manufacturing logistics. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units against load dump transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and DC-DC converter input. Use Value: Limits transient voltage to ≤45.4 V, preventing overvoltage damage to downstream regulators and microcontrollers. | Use Scenario: Shielding analog outputs of pressure or temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) TVS connected between signal line and ground near connector interface. Use Value: Maintains signal integrity with sub-µA leakage while clamping ±8 kV contact ESD per IEC 61000-4-2. |
| Motor Drive Gate Protection | Telecom DC Power Interface |
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers from inductive kickback during PWM switching. IC Role / Device Role / Timing Role: TVS placed between gate and source, rated for fast 10/1000 µs transients. Use Value: Responds in <1 ps to clamp gate-source voltage below 20 V, avoiding oxide breakdown during shoot-through events. | Use Scenario: Surge protection on -48 V telecom power feeds exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS installed at power entry point before DC-DC conversion stage. Use Value: Absorbs up to 1000 W of surge energy without failure, meeting GR-1089-CORE Level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28A-E3/52 | Same VWM (28 V), identical SMB package, but lower PPPM (600 W vs. 1000 W). | Not suitable for automotive load dump; limited to lower-energy ESD and inductive spike suppression. | Select SMB10J28A-E3/52 where ISO 7637-2 compliance or higher surge margin is required. |
| SMCJ28A-E3/52 | Same VWM and clamping, but larger SMC (DO-214AB) package with 1500 W PPPM and lower RθJA (50 °C/W). | Requires larger PCB area; preferred for higher thermal mass or extended surge duty cycles. | Choose SMB10J28A-E3/52 when board space is constrained but 1000 W capability is sufficient. |
Compared with SMBJ28A-E3/52 and SMCJ28A-E3/52, SMB10J28A-E3/52 delivers optimal balance of high surge capacity (1000 W), compact SMB footprint, and AEC-Q101 qualification-making it ideal for space-limited automotive ECUs needing robust load-dump immunity without redesigning layout for larger packages.
Availability
SMB10J28A-E3/52 is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, motor drive protection, and telecom DC feed applications requiring stable component supply across production lifecycles.
Supply support for SMB10J28A-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The SMB10JxxA series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in harsh-environment applications including automotive, industrial automation, and communications infrastructure.
FAQ
What is the clamping voltage of SMB10J28A-E3/52 at its rated peak pulse current?
The SMB10J28A-E3/52 has a maximum clamping voltage (VC) of 45.4 V at its specified peak pulse current (IPPM) of 22.0 A, measured using the standardized 10/1000 µs double-exponential waveform. This value ensures protected circuits remain below critical overvoltage thresholds during surge events. The SMB10J28A-E3/52 maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMB10J28A-E3/52 qualified for automotive applications?
Yes, SMB10J28A-E3/52 is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per the AEC-Q101 standard. Its RoHS-compliant E3 suffix and MSL Level 1 rating further support automotive manufacturing requirements. The SMB10J28A-E3/52 is explicitly designated for use in automotive electronics such as body control modules and powertrain systems.
What is the difference between SMB10J28A-E3/52 and SMBJ28A-E3/52?
SMB10J28A-E3/52 offers 1000 W peak pulse power (PPPM), whereas SMBJ28A-E3/52 is rated for 600 W under the same 10/1000 µs waveform. Both share identical VWM (28 V), VBR range, and SMB package, but the SMB10J28A-E3/52 provides higher surge resilience for demanding applications like automotive load dump. The SMB10J28A-E3/52 also carries AEC-Q101 qualification, while SMBJ28A-E3/52 does not.
What PCB pad layout is recommended for optimal thermal performance of SMB10J28A-E3/52?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad for each terminal of the SMB10J28A-E3/52 to achieve its rated 1000 W PPPM and thermal resistance of 72 °C/W. Reducing pad size degrades both surge capability and steady-state power dissipation. The SMB10J28A-E3/52 datasheet provides exact mounting dimensions and recommends solder mask defined pads for consistent reflow yield.
Does SMB10J28A-E3/52 have polarity marking, and how is it identified?
Yes, SMB10J28A-E3/52 is unidirectional and features a cathode band (color stripe) on the package body, located at the cathode end. This marking aligns with industry-standard DO-214AA polarity convention: the banded end connects to the protected line (e.g., 24 V rail), while the anode connects to ground. No marking appears on bidirectional variants, but SMB10J28A-E3/52 is explicitly unidirectional per its part number suffix "A" and electrical characteristics table.
SMB10J28A-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):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 22A
- 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)
SMB10J28A-E3/52 FAQ
1.How can I place an order for SMB10J28A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J28A-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 SMB10J28A-E3/52 reliable?
The price and inventory of SMB10J28A-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 SMB10J28A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J28A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J28A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J28A-E3/52?
SMB10J28A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J28A-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 SMB10J28A-E3/52?
For technical support, including SMB10J28A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J28A-E3/52 requirements.
6.How does Aetrix verify that SMB10J28A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J28A-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 SMB10J28A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J28A-E3/52?
All SMB10J28A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J28A-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 SMB10J28A-E3/52 part is unused and in its original packaging.
Return procedure for SMB10J28A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J28A-E3/52 Tags
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