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Vishay General Semiconductor - Diodes Division SMB10J28AHE3_A/I
- Part No.:
- SMB10J28AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J28AHE3_A/I.pdf
- Description:
- TVS DIODE 28VWM 45.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,109
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Product details
Overview
SMB10J28AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on power and signal lines. It features a 28 V stand-off voltage (VWM), 31.1–34.4 V breakdown voltage (VBR) at 1 mA, 1000 W peak pulse power (10/1000 µs), 22.0 A peak pulse current (IPPM), and clamps to ≤45.4 V under surge. It is AEC-Q101 qualified and used in automotive sensor interface protection.
For engineers reviewing the SMB10J28AHE3_A/I datasheet, SMB10J28AHE3_A/I pinout, SMB10J28AHE3_A/I application, or SMB10J28AHE3_A/I equivalent, key selection criteria include unidirectional polarity, 28 V working voltage, 1000 W surge rating, AEC-Q101 qualification, and SMB package compatibility with automated SMT assembly.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below VWM (28 V) and rapidly transitions to low-impedance conduction above VBR (min. 31.1 V) to limit transient overvoltages. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and robust surge handling up to 100 A IFSM (8.3 ms half-sine).
The device meets J-STD-020 MSL Level 1 (peak reflow 260 °C), uses matte tin-plated leads compliant with JESD 22-B102, and is rated for TJ = –55 to +150 °C operation - enabling use in under-hood automotive environments and industrial control systems where thermal cycling and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 28 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 31.1 V / 34.4 V at IT = 1 mA - precise breakdown threshold defining turn-on sensitivity |
| VC @ IPPM | ≤45.4 V at IPPM = 22.0 A - clamping voltage limiting downstream IC stress during 10/1000 µs transients |
| PPPM | 1000 W (10/1000 µs) - energy-handling capacity for repetitive or single-event surges per ISO 7637-2/IEC 61000-4-5 |
| IFSM | 100 A (8.3 ms half-sine) - surge current capability for power-line fault events without bond-wire failure |
| Junction Temp | –55 °C to +150 °C - supports placement near heat sources in engine control units and ADAS modules |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); recommended pad layout: 5.59 mm × 2.18 mm minimum copper area per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (unidirectional) | Connected to protected line side; conducts during positive transients when cathode is held higher |
| Cathode | Reverse-biased terminal (marked with band) | Connected to ground or lower-potential rail; defines clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across temperature and lifetime |
| Low incremental surge resistance | Enables tight VC control (≤45.4 V) even at 22.0 A IPPM, minimizing voltage overshoot on protected nodes |
| MSL Level 1 compliance | Supports standard SMT reflow without pre-baking, reducing manufacturing complexity and cost |
| AEC-Q101 qualification | Validates suitability for automotive applications including powertrain, body electronics, and ADAS sensor interfaces |
| Matte tin plating | Guarantees solderability per J-STD-002 and whisker resistance per JESD 201 Class 2 |
Applications
| Automotive Sensor Protection | Industrial Power Supply Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load-dump and inductive switching transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between sensor signal line and chassis ground to shunt surge energy before it reaches the IC input. Use Value: Limits transient voltage to ≤45.4 V, preserving integrity of 3.3 V/5 V interface ICs while meeting ISO 7637-2 Pulse 5a requirements. | Use Scenario: Safeguarding AC-DC and DC-DC converter inputs against lightning-induced surges and grid switching spikes in factory automation equipment. IC Role / Device Role / Timing Role: Primary-stage TVS on 24 V or 48 V input rails, coordinated with MOVs and fuses to absorb >1000 W transient energy. Use Value: Withstands 100 A IFSM and maintains clamping performance after repeated 10/1000 µs surges, extending system uptime in harsh electrical environments. |
| Telecom Line Interface | Consumer USB Power Delivery |
Use Scenario: Shielding Ethernet PHYs and PoE injectors from EFT and surge events on RJ45 ports in enterprise switches and base stations. IC Role / Device Role / Timing Role: Bidirectional-capable variant family member (though SMB10J28AHE3_A/I is unidirectional, its design enables direct replacement with SMB8J28CAHE3_A/I in dual-rail configurations). Use Value: Low capacitance (typ. <100 pF at 0 V) prevents signal integrity degradation on 100BASE-TX lines while delivering 1000 W protection margin. | Use Scenario: Adding secondary overvoltage protection on VBUS lines of USB-C PD ports in laptops and docking stations subjected to hot-plug and adapter faults. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) clamping device placed downstream of primary protection to catch residual transients missed by upstream components. Use Value: Clamps 22.0 A surges to ≤45.4 V within nanoseconds, preventing latch-up or gate oxide damage in USB PD controllers and buck converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28AHE3_A/I | Same VWM (28 V), VBR (31.1–34.4 V), PPPM (1000 W), but lower IFSM (100 A vs. SMBJ series' 100 A - identical), same SMB package | No functional difference; SMBJ and SMB10J families share identical electrical specs for same voltage grades | Select SMB10J28AHE3_A/I when sourcing from Vishay's latest production lot with updated traceability and AEC-Q101 documentation revision |
| SMAJ28AHE3_A/I | Lower PPPM (400 W), smaller SMA (DO-214AC) package, same VWM/VBR, but reduced thermal mass and surge endurance | Suitable only for lower-energy transients (e.g., ESD-only zones); not recommended for load-dump or ISO 7637-2 Pulse 5a | Choose SMAJ28AHE3_A/I only for space-constrained consumer applications where 400 W rating suffices and automotive qualification is not required |
Compared with SMBJ28AHE3_A/I, SMB10J28AHE3_A/I offers identical electrical performance and qualification but reflects Vishay's current-generation manufacturing and documentation. Against SMAJ28AHE3_A/I, it delivers 2.5× higher surge power handling and superior thermal robustness in the same footprint class, making it the preferred choice for automotive and industrial power-line protection.
Availability
SMB10J28AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial power supply inputs, telecom line protection, and USB-C PD port hardening requiring stable component supply and AEC-Q101 compliance.
Supply support for SMB10J28AHE3_A/I 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 optimization.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density, automotive-grade transient suppression in space-constrained, thermally demanding environments.
FAQ
What is the clamping voltage of SMB10J28AHE3_A/I at its rated peak pulse current?
The SMB10J28AHE3_A/I clamps to a maximum of 45.4 V when subjected to its rated peak pulse current of 22.0 A (10/1000 µs waveform). This value is measured under standardized test conditions per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream circuitry such as microcontrollers or transceivers. The SMB10J28AHE3_A/I achieves this with low incremental resistance, maintaining consistent clamping performance across multiple surge events.
Is SMB10J28AHE3_A/I suitable for automotive applications?
Yes, SMB10J28AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101 qualified construction. It supports operating temperatures from –55 °C to +150 °C and has passed stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock - making SMB10J28AHE3_A/I appropriate for engine control units, ADAS camera modules, and body electronics where reliability under vibration and thermal extremes is mandatory.
What does the "A/I" suffix mean in SMB10J28AHE3_A/I?
The "A/I" suffix in SMB10J28AHE3_A/I indicates packaging configuration: "A" denotes the revision code (per Vishay's document 88422, revision 09-Jan-2024), and "I" specifies 13-inch diameter plastic tape and reel delivery containing 3200 units. This format ensures compatibility with high-speed pick-and-place machines and supports just-in-time manufacturing workflows. The full part number SMB10J28AHE3_A/I uniquely identifies both the electrical specification and physical logistics configuration for traceability and procurement accuracy.
How does SMB10J28AHE3_A/I differ from bidirectional TVS diodes like SMB8J28CAHE3_A/I?
SMB10J28AHE3_A/I is unidirectional and functions as a polarized clamp - conducting only during positive transients relative to its cathode. In contrast, SMB8J28CAHE3_A/I is bidirectional and protects both polarities, offering 800 W PPPM (vs. 1000 W for SMB10J28AHE3_A/I) and symmetric VBR. SMB10J28AHE3_A/I is selected when protecting DC-biased lines (e.g., 12 V power rails or sensor outputs), whereas SMB8J28CAHE3_A/I suits AC-coupled or floating lines like telecom data pairs. Their pinouts are identical, but polarity marking and surge rating differ.
What is the maximum leakage current of SMB10J28AHE3_A/I at its stand-off voltage?
The maximum reverse leakage current (ID) of SMB10J28AHE3_A/I is 1.0 µA at its stand-off voltage (VWM) of 28 V and TA = 25 °C. This ultra-low leakage ensures minimal power loss in always-on circuits and avoids false triggering in high-impedance sensor interfaces. The SMB10J28AHE3_A/I maintains this spec across its full operating temperature range due to its glass-passivated junction, supporting precision analog designs in automotive and industrial applications where standby current budgets are tightly constrained.
SMB10J28AHE3_A/I 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J28AHE3_A/I FAQ
1.How can I place an order for SMB10J28AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J28AHE3_A/I 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 SMB10J28AHE3_A/I reliable?
The price and inventory of SMB10J28AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J28AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J28AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J28AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J28AHE3_A/I?
SMB10J28AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J28AHE3_A/I 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 SMB10J28AHE3_A/I?
For technical support, including SMB10J28AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J28AHE3_A/I requirements.
6.How does Aetrix verify that SMB10J28AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J28AHE3_A/I 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 SMB10J28AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J28AHE3_A/I?
All SMB10J28AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J28AHE3_A/I, 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 SMB10J28AHE3_A/I part is unused and in its original packaging.
Return procedure for SMB10J28AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J28AHE3_A/I Tags
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