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Vishay General Semiconductor - Diodes Division SMBJ15AHE3_A/H
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- Part No.:
- SMBJ15AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ15AHE3_A/H.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,733
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Product details
Overview
SMBJ15AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics. It features a 15 V stand-off voltage (VWM), 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 on power rails and signal lines in industrial motor drives, automotive body control modules, and sensor interface circuits.
For engineers reviewing the SMBJ15AHE3_A/H datasheet, SMBJ15AHE3_A/H pinout, SMBJ15AHE3_A/H application, or SMBJ15AHE3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, low 0.088 %/°C temperature coefficient of breakdown voltage, 1.0 µA max reverse leakage at VWM, and compatibility with automated SMT placement on SMB (DO-214AA) footprint.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction to achieve fast response (<1 ps) and low incremental surge resistance. Its breakdown voltage range is 16.7–18.5 V at 1.0 mA test current, ensuring reliable turn-on before downstream IC damage thresholds.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting operation under sustained transient stress when mounted on 5.0 mm × 5.0 mm copper pads per specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 12 V nominal systems. |
| VBR min/max | 16.7 V / 18.5 V at 1.0 mA - Confirmed breakdown threshold ensures predictable activation above system rail voltage. |
| VC @ IPPM | 24.4 V at 24.6 A - Clamping voltage limits protected circuit stress during 600 W transient events. |
| IPPM | 24.6 A - Peak pulse current capability with 10/1000 µs waveform; derates linearly above 25 °C ambient. |
| Leakage ID | 1.0 µA max at 15 V - Minimal standby power loss and signal integrity impact in high-impedance interfaces. |
| TJ max | +150 °C - Enables use in under-hood automotive and industrial environments without thermal derating penalties. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMT outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with IPC-7351B. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during positive transients on cathode side. |
| Cathode | Protected line input terminal | Connected to the line being protected (e.g., 12 V rail or sensor output); conducts during overvoltage to shunt energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including BCM, infotainment power supplies, and ADAS sensor interfaces. |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak without preconditioning. |
| Low clamping ratio (VC/VBR) | 1.46 typical - Minimizes voltage overshoot during clamping, critical for protecting 16 V tolerant ICs. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power pins from load dump and inductive switching spikes in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply rail and chassis ground to clamp transients up to ±100 V. Use Value: Limits clamped voltage to 24.4 V, well below 30 V absolute maximum ratings of common automotive MCUs and transceivers. |
Use Scenario: Shields 24 V DC digital input optocoupler front-end from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS on input line to absorb repetitive 1 kV/500 A transients per IEC 61000-4-5. Use Value: Delivers 600 W pulse handling with <1 ns response, preventing false triggering and latch-up in isolated input stages. |
| Consumer Appliance Motor Drive Board | Medical Sensor Signal Conditioning Circuit |
|
Use Scenario: Guards gate driver IC supply pins against back-EMF from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Local clamping device adjacent to half-bridge driver ICs, referenced to low-side switch ground. Use Value: 24.4 V clamping prevents overvoltage damage to 20 V-rated gate drivers while maintaining fast recovery after surge. |
Use Scenario: Safeguards analog front-end op-amps and ADC inputs in portable patient monitors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) unidirectional TVS on differential sensor lines to preserve signal fidelity. Use Value: Sub-µA leakage avoids DC offset errors; 15 V VWM accommodates ±10 V sensor full-scale ranges with safety margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A-E3/52 | Commercial-grade RoHS-compliant version; no AEC-Q101 qualification; same VWM, VC, and package. | Lacks automotive qualification; suitable for consumer and industrial non-automotive designs only. | Select when AEC-Q101 is not required and cost sensitivity outweighs automotive compliance needs. |
| SMCJ15AHE3_A/H | Same electrical specs but in larger SMC (DO-214AB) package; 1500 W peak pulse power rating vs. 600 W. | Higher power handling enables use in higher-energy surge environments (e.g., AC mains input stages). | Choose when system-level surge testing exceeds 600 W requirements or board layout allows larger footprint. |
Compared with SMBJ15AHE3_A/H, SMBJ15A-E3/52 offers identical clamping performance at lower qualification cost, while SMCJ15AHE3_A/H trades PCB area for 2.5× higher surge energy absorption - both require review of layout constraints and compliance scope before substitution.
Availability
SMBJ15AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and medical sensor systems requiring stable component supply with long-term lifecycle support and AEC-Q101 traceability.
Supply support for SMBJ15AHE3_A/H 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 SMBJ series is engineered for high-reliability transient suppression in automotive, industrial, and computing applications - delivering consistent clamping performance across temperature and lifetime under real-world surge stress.
FAQ
What is the clamping voltage of SMBJ15AHE3_A/H at its rated peak pulse current?
The SMBJ15AHE3_A/H has a maximum clamping voltage (VC) of 24.4 V at 24.6 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88392) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ15AHE3_A/H maintains this clamping performance across its specified operating temperature range.
Is SMBJ15AHE3_A/H suitable for automotive applications?
Yes, SMBJ15AHE3_A/H is AEC-Q101 qualified, making it suitable for automotive applications including body control modules, infotainment power supplies, and sensor interfaces. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction. Its 150 °C maximum junction temperature and MSL Level 1 rating further support use in under-hood and dashboard environments where thermal and reliability demands are stringent.
What is the package type and mounting compatibility of SMBJ15AHE3_A/H?
SMBJ15AHE3_A/H uses the SMB (DO-214AA) surface-mount package - measuring 4.57 mm × 3.94 mm with 2.20 mm height - and features matte tin-plated leads compliant with J-STD-002 solderability and JESD22-B102 whisker resistance Class 2. It is fully compatible with standard reflow profiles (peak 260 °C) and automated pick-and-place equipment, supporting high-volume manufacturing without special handling.
How does SMBJ15AHE3_A/H compare to bidirectional TVS diodes like SMBJ15CA?
SMBJ15AHE3_A/H is unidirectional and intended for DC line protection with defined polarity (cathode marked), whereas SMBJ15CA is bidirectional and used for AC or floating signal line protection. The SMBJ15AHE3_A/H has lower leakage (1.0 µA vs. 2.0 µA for SMBJ15CA at VWM) and is optimized for asymmetric voltage rails. Its clamping behavior applies only in reverse bias; forward conduction follows standard diode characteristics (VF ≤ 3.5 V at 50 A).
What is the thermal resistance and power derating behavior of SMBJ15AHE3_A/H?
SMBJ15AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W when mounted on 5.0 mm × 5.0 mm copper pads. Power dissipation derates linearly above 25 °C ambient, with peak pulse power reduced per Figure 2 in the Vishay datasheet (88392). At 85 °C ambient, the 600 W rating drops to approximately 420 W for repetitive pulses.
SMBJ15AHE3_A/H 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/H FAQ
1.How can I place an order for SMBJ15AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ15AHE3_A/H 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/H reliable?
The price and inventory of SMBJ15AHE3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for SMBJ15AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ15AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ15AHE3_A/H?
SMBJ15AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ15AHE3_A/H 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/H?
For technical support, including SMBJ15AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ15AHE3_A/H requirements.
6.How does Aetrix verify that SMBJ15AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ15AHE3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of SMBJ15AHE3_A/H?
All SMBJ15AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ15AHE3_A/H, 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/H part is unused and in its original packaging.
Return procedure for SMBJ15AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ15AHE3_A/H Tags
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