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Vishay General Semiconductor - Diodes Division SMBJ15AHE3_A/I
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- Part No.:
- SMBJ15AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ15AHE3_A/I.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,129
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Product details
Overview
SMBJ15AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping fast-rising voltage transients on power and signal lines. It features a 15 V standoff voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 24.4 V maximum clamping voltage (VC) at 24.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed to protect MOSFETs, ICs, and sensor interfaces in industrial motor drives.
For engineers reviewing the SMBJ15AHE3_A/I datasheet, SMBJ15AHE3_A/I pinout, SMBJ15AHE3_A/I application, or SMBJ15AHE3_A/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and RoHS-compliant packaging details - all confirmed from Vishay's official 88392 document revision 09-Jan-2024.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable avalanche behavior under transient stress. Its low incremental surge resistance and sub-nanosecond response time enable effective suppression of ESD, lightning-induced surges, and inductive switching spikes on DC rails and low-speed signal paths.
The SMBJ15AHE3_A/I is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports automated SMT placement, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and is qualified to AEC-Q101 - confirming suitability for automotive power electronics where reliability under thermal cycling and mechanical shock is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 16.7 V / 18.5 V at IT = 1 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 24.4 V at 24.6 A - Clamped voltage seen by protected circuit during 600 W transient; determines downstream component stress. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; validates robustness against common IEC 61000-4-5 surge profiles. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms); supports protection of power stages subject to motor commutation or relay bounce. |
| TJ Range | –55 °C to +150 °C - Full automotive-grade junction temperature range; enables deployment in engine control units and under-hood modules. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs PCB thermal design for sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-banded end is opposite) | Connected to lower-potential side of protected line; reverse-biased during normal operation. |
| Cathode | Avalanche clamping terminal (marked with band) | Connected to higher-potential rail (e.g., VCC or signal line); conducts when transient exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validated clamping capability against high-energy surges without degradation across >1000 events. |
| AEC-Q101 qualified | Passed automotive stress tests including temperature cycling, HTRB, and ESD - suitable for ASIL-B supporting systems. |
| Low profile SMB package | 0.220" × 0.155" footprint with 0.096" height enables dense layout in space-constrained ECUs and IoT edge nodes. |
| 1.0 µA max reverse leakage @ VWM | Minimal standby power loss on battery-backed sensors and always-on microcontroller inputs. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking; reduces manufacturing complexity. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against inductive kickback from BLDC motor phase switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MOSFET source and ground to clamp negative transients and prevent latch-up in driver ICs. Use Value: Limits voltage excursion to ≤24.4 V during 24.6 A surge, preserving gate oxide integrity and enabling reliable 20 kHz PWM operation. | Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients in door module assemblies. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rail upstream of LDO regulators, absorbing up to 600 W pulses per ISO 7637-2 Pulse 5a. Use Value: Maintains regulated output stability by clamping input rail to 24.4 V, preventing brownout resets and EEPROM corruption during 120 V/50 ms events. |
| Consumer Power Adapters | Industrial Sensor Signal Conditioning |
Use Scenario: Secondary-side overvoltage protection on 5 V/12 V outputs of flyback converters in USB-C PD adapters. IC Role / Device Role / Timing Role: Unidirectional clamping device across output capacitor to suppress transformer leakage spikes and rectifier reverse recovery overshoot. Use Value: Ensures output stays within ±5 % tolerance during 10/1000 µs surges, meeting UL 62368-1 transient immunity requirements. | Use Scenario: Input protection for 4–20 mA current-loop receivers exposed to field wiring induced surges in factory automation PLC I/O cards. IC Role / Device Role / Timing Role: Series-connected TVS on loop supply line to limit common-mode transients before precision op-amp front-end. Use Value: Holds input node below 24.4 V during 1 kV/500 Ω surge (IEC 61000-4-5), avoiding saturation and maintaining <0.1 % measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VC/PPPM, identical SMB package and pinout. | Not qualified for automotive use; suitable for consumer or industrial equipment with lower reliability requirements. | Select when AEC-Q101 is not mandated and cost optimization is prioritized. |
| SMCJ15AHE3_A/I | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 40 °C/W vs. 100 °C/W; 1500 W PPPM. | Better thermal performance and higher surge capacity; requires larger PCB area and different pad layout. | Choose when system-level surge testing exceeds 600 W or board layout allows SMC footprint. |
Compared with SMBJ15A-E3/52, the SMBJ15AHE3_A/I adds AEC-Q101 qualification and RoHS compliance without altering clamping behavior - making it the preferred choice for automotive designs. Against SMCJ15AHE3_A/I, it trades lower surge rating and higher thermal resistance for compact SMB layout - ideal where space is constrained but 600 W protection suffices.
Availability
SMBJ15AHE3_A/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ15AHE3_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 performance.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and computing applications where failure due to voltage surges must be eliminated at the component level.
FAQ
What is the maximum clamping voltage of SMBJ15AHE3_A/I under a 600 W transient?
The SMBJ15AHE3_A/I has a maximum clamping voltage (VC) of 24.4 V at 24.6 A peak pulse current, corresponding to the 600 W 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during worst-case surge conditions. The SMBJ15AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMBJ15AHE3_A/I qualified for automotive applications?
Yes, SMBJ15AHE3_A/I is AEC-Q101 qualified, as confirmed in the "Ordering Information" section of Vishay's 88392 datasheet (Revision 09-Jan-2024). The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction. This certification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD - validating its use in automotive powertrain, chassis, and body electronics.
What is the standoff voltage rating for SMBJ15AHE3_A/I?
The standoff voltage (VWM) for SMBJ15AHE3_A/I is 15 V, meaning it remains in high-impedance state up to this reverse voltage during normal operation. This value is specified in the "Electrical Characteristics" table of Vishay document 88392 and ensures minimal leakage (<1.0 µA) while providing sufficient margin below the 16.7–18.5 V breakdown range. The SMBJ15AHE3_A/I is therefore suited for 12 V nominal systems with transient headroom.
Does SMBJ15AHE3_A/I have a bidirectional variant?
No - SMBJ15AHE3_A/I is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., SMBJ15CA). The unidirectional configuration provides asymmetric clamping: it conducts only when cathode is positive relative to anode, making it ideal for DC rail protection where polarity is fixed. Using SMBJ15AHE3_A/I in AC or floating applications would require external polarity management.
What is the thermal resistance of SMBJ15AHE3_A/I, and how does it affect PCB layout?
The SMBJ15AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as stated in the "Thermal Characteristics" table of Vishay document 88392. This value implies that at 5.0 W steady-state dissipation, junction temperature rises 500 °C above ambient - underscoring that the device is intended for transient-only duty. PCB layout must provide minimum recommended pad area to maintain this rating; reducing copper area increases RθJA and risks thermal runaway during repetitive surges.
SMBJ15AHE3_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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 24.6A
- Power - Peak Pulse:
- 600W
- 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 (SMBJ)
SMBJ15AHE3_A/I FAQ
1.How can I place an order for SMBJ15AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ15AHE3_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 SMBJ15AHE3_A/I reliable?
The price and inventory of SMBJ15AHE3_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 SMBJ15AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ15AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ15AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ15AHE3_A/I?
SMBJ15AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ15AHE3_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 SMBJ15AHE3_A/I?
For technical support, including SMBJ15AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ15AHE3_A/I requirements.
6.How does Aetrix verify that SMBJ15AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ15AHE3_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 SMBJ15AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ15AHE3_A/I?
All SMBJ15AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ15AHE3_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 SMBJ15AHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ15AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ15AHE3_A/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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