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Vishay General Semiconductor - Diodes Division SMBJ16A-E3/52
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- Part No.:
- SMBJ16A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16A-E3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:21,628
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Product details
Overview
SMBJ16A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for primary 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, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial sensor interfaces and MOSFET gate protection circuits.
For engineers reviewing the SMBJ16A-E3/52 datasheet, SMBJ16A-E3/52 pinout, SMBJ16A-E3/52 application, or SMBJ16A-E3/52 equivalent, key selection criteria include verified clamping performance under 10/1000 µs surge, unidirectional polarity marking, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and compliance with AEC-Q101 when ordered with HE3 suffix.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transients exceeding 16 V, it avalanches to limit voltage across protected circuitry to ≤26.0 V. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the unidirectional configuration provides forward conduction path only on cathode-side biasing.
The device is rated for 100 A non-repetitive forward surge (8.3 ms half-sine), supports automated SMT placement, and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). Its SMB package delivers 5.0 W steady-state power dissipation at TA = 50 °C and operates across –55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR min/max | 17.8 V / 19.7 V at IT = 1.0 mA - Verified breakdown threshold range ensuring consistent avalanche initiation. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamped voltage during 10/1000 µs surge; determines maximum stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling capability; validates protection against IEC 61000-4-5 Level 4 surges. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms); supports robustness against inductive switch-off events. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs PCB copper pad sizing (0.2" × 0.2") for thermal management. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant (E3 suffix), polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode reference for reverse-biased clamping | Connected to protected line; conducts during overvoltage to shunt current to ground. |
| Anode | Return path to ground or low-impedance sink | Must be routed to low-inductance ground plane to maintain clamping speed and effectiveness. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates protection against high-energy transients per IEC 61000-4-5 without thermal runaway. |
| 26.0 V clamping voltage at 23.1 A | Ensures downstream 3.3 V/5 V logic and MOSFET gate drivers remain within absolute maximum ratings. |
| Glass passivated junction | Provides stable, repeatable breakdown characteristics and long-term reliability under repeated surge stress. |
| MSL Level 1 (260 °C peak) | Enables standard lead-free reflow assembly without pre-baking or special handling. |
| Low leakage (<1.0 µA at 16 V) | Minimizes standby power loss and avoids false triggering in high-impedance sensor bias networks. |
Applications
| Industrial Sensor Interface | DC Power Rail Protection |
|---|---|
Use Scenario: Protecting analog output lines (4–20 mA, 0–10 V) of pressure/temperature sensors from ESD and inductive switching noise in factory automation cabinets. IC Role / Device Role / Timing Role: Shunt TVS placed between signal line and system ground, activated within <1 ns upon overvoltage detection. Use Value: Prevents latch-up or permanent damage to precision op-amps and ADC front-ends by limiting transient voltage to ≤26.0 V. |
Use Scenario: Safeguarding 12 V/24 V input rails of PLC I/O modules against load dump and relay coil flyback spikes. IC Role / Device Role / Timing Role: Primary clamping element across power rail and chassis ground, absorbing up to 600 W surge energy. Use Value: Maintains rail integrity below MOSFET VDS(max) and microcontroller VCC limits during 100 A inductive turn-off events. |
| MOSFET Gate Protection | Telecom Line Interface |
Use Scenario: Shielding N-channel MOSFET gates driven by microcontrollers from Miller-induced voltage overshoot during fast switching. IC Role / Device Role / Timing Role: Low-capacitance (typ. 150 pF at 0 V) unidirectional clamp between gate and source. Use Value: Limits gate-source voltage to ≤26.0 V, preventing oxide breakdown while adding <50 ps delay to switching edge. |
Use Scenario: Secondary protection on Ethernet PHY or RS-485 transceiver lines exposed to lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Coordinated clamping stage following gas discharge tube (GDT) primary protection. Use Value: Suppresses residual transients to sub-30 V levels within 1 ns, meeting GR-1089-CORE Level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA-E3/52 | Bidirectional variant; symmetric clamping in both polarities; VBR = 17.8–19.7 V, VC = 26.0 V same. | Required for AC-coupled or floating signal lines (e.g., RS-485 differential pairs) where polarity reversal occurs. | Select SMBJ16CA-E3/52 only when bidirectional protection is mandated; unidirectional SMBJ16A-E3/52 offers lower leakage in DC-biased rails. |
| SMAJ16A-E3/52 | Lower 400 W PPPM; identical VWM/VC but reduced IPPM (15.2 A); SMA package (smaller footprint, higher RθJA). | Suitable for space-constrained consumer electronics with lower surge exposure (IEC 61000-4-2 only), not IEC 61000-4-5 Level 4. | Choose SMAJ16A-E3/52 only if board area is critical and surge threat level is limited; SMBJ16A-E3/52 provides 50% higher energy margin. |
Compared with SMBJ16CA-E3/52 and SMAJ16A-E3/52, SMBJ16A-E3/52 delivers optimal balance of 600 W surge capacity, 26.0 V clamping, and SMB package manufacturability for industrial DC rail and sensor protection - without compromising leakage or thermal performance.
Availability
SMBJ16A-E3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, DC power rail protection, and MOSFET gate safeguarding requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ16A-E3/52 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, power handling, and automotive qualification.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and telecom infrastructure where failure resilience is critical.
FAQ
What is the maximum clamping voltage of SMBJ16A-E3/52 under a 10/1000 µs surge?
The SMBJ16A-E3/52 has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 23.1 A using the standardized 10/1000 µs waveform. This value is guaranteed per Vishay Document 88392 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ16A-E3/52 maintains this clamping performance across its full operating temperature range.
Is SMBJ16A-E3/52 RoHS-compliant and lead-free compatible?
Yes, the "E3" suffix in SMBJ16A-E3/52 indicates full RoHS compliance and lead-free compatibility, including matte tin-plated terminals qualified to J-STD-002 and JESD 22-B102 solderability standards. The device meets JEDEC J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, supporting standard lead-free SMT assembly processes without modification. SMBJ16A-E3/52 is also halogen-free per Vishay's material categorization policy.
How does SMBJ16A-E3/52 differ from SMBJ16CA-E3/52?
SMBJ16A-E3/52 is unidirectional, with a cathode band indicating polarity and clamping only during reverse overvoltage; SMBJ16CA-E3/52 is bidirectional, offering symmetric clamping in both directions with no polarity marking. Both share identical VWM (16 V), VBR, and VC (26.0 V), but SMBJ16A-E3/52 exhibits lower reverse leakage (<1.0 µA vs. ≤2.0 µA for CA version). Use SMBJ16A-E3/52 for DC-biased rails and SMBJ16CA-E3/52 for AC or floating signal paths.
What is the thermal resistance and recommended PCB layout for SMBJ16A-E3/52?
The SMBJ16A-E3/52 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 specified in Vishay Document 88392. To achieve rated 5.0 W power dissipation at TA = 50 °C, use minimum pad dimensions matching the SMB outline and ensure uninterrupted thermal vias beneath pads. Avoid narrow traces or isolated copper islands that increase thermal impedance.
Can SMBJ16A-E3/52 be used in automotive applications?
The base SMBJ16A-E3/52 is commercial-grade; however, the AEC-Q101-qualified variant SMBJ16AHE3_B/H (with HE3 suffix) is approved for automotive use. That version undergoes extended stress testing per AEC-Q101, including temperature cycling, humidity bias, and surge robustness validation. For under-hood or body-control module designs, specify SMBJ16AHE3_B/H - the SMBJ16A-E3/52 itself is intended for industrial and telecom applications unless explicitly qualified.
SMBJ16A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ16A-E3/52 FAQ
1.How can I place an order for SMBJ16A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16A-E3/52 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 SMBJ16A-E3/52 reliable?
The price and inventory of SMBJ16A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ16A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16A-E3/52?
SMBJ16A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16A-E3/52 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 SMBJ16A-E3/52?
For technical support, including SMBJ16A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16A-E3/52 requirements.
6.How does Aetrix verify that SMBJ16A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ16A-E3/52 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 SMBJ16A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ16A-E3/52?
All SMBJ16A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16A-E3/52, 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 SMBJ16A-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ16A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16A-E3/52 Tags
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