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Vishay General Semiconductor - Diodes Division SMBJ16AHE3/52
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- Part No.:
- SMBJ16AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16AHE3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,893
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Product details
Overview
SMBJ16AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 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 capability with a 10/1000 µs waveform - deployed in automotive ECUs, industrial I/O modules, and sensor interface circuits.
For engineers reviewing the SMBJ16AHE3/52 datasheet, SMBJ16AHE3/52 pinout, SMBJ16AHE3/52 application, or SMBJ16AHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification, low 1.0 µA reverse leakage at VWM, 17.8–19.7 V breakdown voltage range (VBR), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, conducting only when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and low incremental surge resistance, while the unidirectional polarity enables integration into DC-biased lines without reverse conduction concerns.
The SMBJ16AHE3/52 delivers fast response time (<1 ps), meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and maintains thermal resistance of 100 °C/W (junction-to-ambient) under standard mounting conditions. Its 150 °C maximum junction temperature supports operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin. |
| VBR min/max | 17.8 V / 19.7 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 26.0 V - Clamped voltage during 23.1 A 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; validates protection against common lightning/inductive transients. |
| ID @ VWM | 1.0 µA - Reverse leakage at rated stand-off voltage; critical for low-power sensor and battery-backed circuits. |
| TJ max | +150 °C - Maximum junction temperature; enables use in high-ambient automotive and industrial enclosures. |
| Package | SMB (DO-214AA) - Standard surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with IPC-7351B land patterns. |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during positive transients. |
| Cathode | High-side input terminal | Connected to protected line (e.g., 12 V rail or sensor output); conducts when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on 5.0 mm × 5.0 mm copper pads. |
| Glass passivated junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives in humid environments. |
| MSL Level 1 rating | Supports single-reflow assembly at 260 °C peak without moisture-induced damage or popcorn effect. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or gate oxide stress in protected MOSFETs/ICs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs in engine control units (ECUs) against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and LDO input to clamp surges above 26.0 V. Use Value: Prevents permanent damage to voltage regulators and microcontrollers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected TVS on 4–20 mA or 0–10 V signal lines to absorb ESD and switching noise. Use Value: Maintains signal integrity by limiting transient-induced offset errors and preventing ADC saturation. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding 48 V PoE-powered equipment inputs against induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converter, sized for 600 W pulse handling. Use Value: Enables compliance with IEC 61000-4-5 Ed. 3 surge immunity requirements without derating. |
Use Scenario: Adding secondary-level surge protection on VBUS lines of portable chargers and docking stations. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) TVS placed after primary fuse to avoid standby current drain. Use Value: Blocks >8 kV contact ESD per IEC 61000-4-2 while preserving battery life in always-on devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHM3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated (e.g., EU automotive Tier 1). | Direct substitution if halogen-free requirement applies; same thermal and clamping performance as SMBJ16AHE3/52. |
| SMCJ16AHE3/52 | Same VWM and VBR but in larger SMC (DO-214AB) package; 1500 W PPPM rating and lower RθJA (50 °C/W). | Used where higher surge energy handling or better thermal dissipation is required (e.g., heavy-duty industrial motor drives). | Choose when system-level surge testing exceeds 600 W; requires PCB layout change due to larger 7.11 mm × 6.22 mm footprint. |
Compared with SMBJ16AHE3/52, SMBJ16AHM3/52 offers identical protection performance with halogen-free construction, while SMCJ16AHE3/52 provides 2.5× higher pulse power at the cost of increased board area and thermal design adjustments.
Availability
SMBJ16AHE3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supplies requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for SMBJ16AHE3/52 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, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMBJ series was developed specifically for surface-mount transient suppression in space-constrained, high-reliability applications - balancing clamping performance, thermal robustness, and automated assembly compatibility.
FAQ
What is the clamping voltage of SMBJ16AHE3/52 at its rated peak pulse current?
The SMBJ16AHE3/52 has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 23.1 A with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ16AHE3/52 maintains this clamping performance across its qualified operating temperature range.
Is SMBJ16AHE3/52 qualified for automotive applications?
Yes, SMBJ16AHE3/52 is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life required for automotive electronic components. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101-qualified versions, making SMBJ16AHE3/52 suitable for under-hood and cabin ECU designs per ISO/TS 16949 requirements.
What is the reverse leakage current of SMBJ16AHE3/52 at its stand-off voltage?
The SMBJ16AHE3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 16 V stand-off voltage (VWM) and 25 °C ambient temperature. This low leakage supports energy-sensitive applications such as battery-powered sensors and always-on monitoring circuits where quiescent current must remain minimal. Leakage remains below 5 µA up to +125 °C per datasheet characterization.
Does SMBJ16AHE3/52 have a bidirectional variant?
No - SMBJ16AHE3/52 is a unidirectional TVS diode, indicated by the "A" suffix. Bidirectional variants use the "CA" suffix (e.g., SMBJ16CAHE3/52) and provide symmetrical clamping for AC-coupled or floating signal lines. The unidirectional SMBJ16AHE3/52 is intended for DC-biased rails where only positive-going transients require suppression relative to ground.
What is the thermal resistance of SMBJ16AHE3/52 under standard mounting conditions?
The SMBJ16AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes still air and no additional heatsinking. For higher-power or elevated-temperature environments, thermal performance can be improved using larger copper areas or internal layer planes, as validated in Vishay's thermal characterization curves.
SMBJ16AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ16AHE3/52 FAQ
1.How can I place an order for SMBJ16AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16AHE3/52 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 SMBJ16AHE3/52 reliable?
The price and inventory of SMBJ16AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ16AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16AHE3/52?
SMBJ16AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16AHE3/52 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 SMBJ16AHE3/52?
For technical support, including SMBJ16AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16AHE3/52 requirements.
6.How does Aetrix verify that SMBJ16AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ16AHE3/52 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 SMBJ16AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ16AHE3/52?
All SMBJ16AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16AHE3/52, 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 SMBJ16AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ16AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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