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Vishay General Semiconductor - Diodes Division SMBJ16AHE3_B/H
- Part No.:
- SMBJ16AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16AHE3_B/H.pdf
- Description:
- 600W,16V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,186
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Product details
Overview
SMBJ16AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on power rails and signal lines of industrial sensors and automotive ECUs.
For engineers reviewing the SMBJ16AHE3_B/H datasheet, SMBJ16AHE3_B/H pinout, SMBJ16AHE3_B/H application, or SMBJ16AHE3_B/H equivalent, this device is evaluated for ESD/surge immunity in 12 V–24 V DC systems, PCB-level transient suppression per IEC 61000-4-5, junction temperature derating above 25 °C, and AEC-Q101 qualification for automotive under-hood use.
Technical Context
This TVS diode operates as a clamping-type protector: when reverse voltage exceeds its breakdown threshold (17.8–19.7 V at 1 mA), it rapidly transitions from high-impedance to low-impedance state to shunt surge energy away from downstream circuitry. Its glass-passivated junction ensures stable VBR and low leakage (<1.0 µA at VWM).
Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, requiring minimum 5.0 mm × 5.0 mm copper pads per terminal for rated PPPM. The device meets MSL Level 1 (JEDEC J-STD-020) and supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; sets upper limit for normal system rail operation. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - guaranteed breakdown range defining turn-on threshold; used to verify margin vs. system overvoltage tolerance. |
| VC @ IPPM | 26.0 V at 23.1 A - clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected IC or MOSFET. |
| PPPM | 600 W - peak pulse power handling capability; defines survivability against standardized lightning/surge transients (IEC 61000-4-5). |
| ID @ VWM | ≤1.0 µA - reverse leakage at stand-off voltage; critical for low-power sensor bias networks and battery-backed circuits. |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments with thermal derating. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for engine control, ADAS, and body electronics. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-banded unidirectional configuration. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, RoHS-compliant and whisker-resistant (JESD 201 Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; forms current loop with cathode during clamping event. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 12 V supply rail or CAN_H); band denotes cathode end per JEDEC DO-214AA standard. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) on 12 V systems without cascaded stages. |
| 26.0 V clamping voltage at 23.1 A | Limits voltage overshoot below 30 V during worst-case surge, safeguarding 3.3 V/5 V logic interfaces and 20 V-rated MOSFETs. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control modules and infotainment power supplies where long-term reliability is mandatory. |
| MSL Level 1, 260 °C reflow compatible | Supports standard SMT assembly without moisture sensitivity concerns or pre-bake requirements, reducing manufacturing overhead. |
| Glass passivated junction | Ensures stable VBR across temperature and lifetime, minimizing drift-induced false triggering or failure to clamp. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Guarding |
|---|---|
|
Use Scenario: 12 V battery-supplied engine control unit exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp transients before they reach LDOs and microcontrollers. Use Value: Withstands 600 W surges and clamps to ≤26.0 V, preventing latch-up or gate oxide damage in 3.3 V MCU peripherals. |
Use Scenario: 4–20 mA current loop interface in factory automation PLC I/O module subject to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: TVS mounted across analog input terminals to divert fast transients while preserving signal integrity below 16 V. Use Value: Low 1.0 µA leakage avoids loading precision current sources; 26.0 V VC ensures op-amp inputs remain within ABS MAX ratings. |
| Telecom DC Power Input Stage | Consumer Device USB Port Surge Shield |
|
Use Scenario: 24 V PoE-powered network switch front-end encountering lightning-induced surges on building-wide cabling. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail upstream of DC/DC converters and hot-swap controllers. Use Value: 600 W rating handles multi-kV transients; AEC-Q101 qualification adds confidence in long-life deployments under thermal stress. |
Use Scenario: USB 2.0 data line (D+/D−) and VBUS line in smart speaker subjected to human-body-model ESD events during plugging/unplugging. IC Role / Device Role / Timing Role: Discrete TVS pair (one per line) providing sub-nanosecond response to ±8 kV contact discharge per IEC 61000-4-2. Use Value: Fast response time and low capacitance (<100 pF typical) prevent signal distortion while meeting USB 2.0 eye diagram compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHM3_B/H | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected when halogen-free material compliance is mandated by OEM environmental policy. | Direct drop-in replacement where halogen-free bill-of-materials is required. |
| SMBJ16A-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VC/PPPM, but rated only for industrial temperature range (-55 °C to +150 °C) without automotive qualification testing. | Not suitable for automotive under-hood or safety-critical systems; appropriate for cost-sensitive consumer or industrial controls. | Lower-cost alternative when AEC-Q101 is not required and full automotive reliability validation is unnecessary. |
Compared with SMBJ16AHE3_B/H, the HM3 variant adds halogen-free compliance without altering performance, while the E3/52 version omits AEC-Q101 validation - making the HE3 suffix essential for automotive designs needing certified reliability, and the E3 option viable for non-automotive cost optimization.
Availability
SMBJ16AHE3_B/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer USB protection requiring stable component supply with AEC-Q101 assurance and long-lifecycle support.
Supply support for SMBJ16AHE3_B/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against ESD, lightning, and switching surges is non-negotiable.
FAQ
What is the clamping voltage of SMBJ16AHE3_B/H at its rated peak pulse current?
The SMBJ16AHE3_B/H has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 23.1 A using the 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ16AHE3_B/H maintains this clamping performance across its qualified operating temperature range.
Is SMBJ16AHE3_B/H suitable for automotive applications?
Yes, SMBJ16AHE3_B/H is AEC-Q101 qualified and specifically designed for automotive use cases including engine control units, body electronics, and ADAS power domains. Its qualification covers temperature cycling, highly accelerated life testing, and ESD robustness - confirming suitability for under-hood environments up to +150 °C junction temperature. The HE3 suffix explicitly denotes this automotive-grade certification.
How does the SMBJ16AHE3_B/H differ from the commercial-grade SMBJ16A-E3/52?
The SMBJ16AHE3_B/H differs from SMBJ16A-E3/52 primarily in qualification: HE3 carries full AEC-Q101 validation for automotive reliability, while E3/52 is commercial-grade without that testing. Electrically, both share identical VWM (16 V), VC (26.0 V), and PPPM (600 W). The HE3 variant also uses RoHS-compliant materials aligned with automotive supply chain requirements, whereas E3/52 meets general RoHS but lacks automotive-specific traceability and test documentation.
What is the thermal resistance specification for SMBJ16AHE3_B/H?
The SMBJ16AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, measured on the recommended 5.0 mm × 5.0 mm copper pad layout per terminal. These values govern thermal derating above 25 °C ambient and inform heatsinking decisions - for example, at 85 °C ambient, the device's power dissipation must be reduced to ~2.5 W to maintain TJ ≤ 150 °C.
Does SMBJ16AHE3_B/H have polarity marking, and how is it identified?
Yes, SMBJ16AHE3_B/H is a unidirectional TVS diode with explicit polarity marking: a cathode band is printed on the package body near one end, indicating the cathode terminal. Per JEDEC DO-214AA standard, the banded end connects to the protected line (e.g., VCC or signal), while the unbanded end connects to ground. This orientation is critical - reverse installation prevents proper clamping and may cause catastrophic failure during overvoltage events.
SMBJ16AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 23.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ16AHE3_B/H FAQ
1.How can I place an order for SMBJ16AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16AHE3_B/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 SMBJ16AHE3_B/H reliable?
The price and inventory of SMBJ16AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ16AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16AHE3_B/H?
SMBJ16AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16AHE3_B/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 SMBJ16AHE3_B/H?
For technical support, including SMBJ16AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ16AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ16AHE3_B/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 SMBJ16AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ16AHE3_B/H?
All SMBJ16AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16AHE3_B/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 SMBJ16AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ16AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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