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Vishay General Semiconductor - Diodes Division SMBG16AHE3/5B
- Part No.:
- SMBG16AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16AHE3/5B.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,715
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Product details
Overview
SMBG16AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), clamping voltage of 26.0 V at 23.1 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG16AHE3/5B datasheet, SMBG16AHE3/5B pinout, SMBG16AHE3/5B application, or SMBG16AHE3/5B equivalent, key selection criteria include unidirectional polarity, low clamping ratio (VC/VBR ≈ 1.38), 1.0 μA max reverse leakage at VWM, 150 °C max junction temperature, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at 16 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and fast response time (<1 ns), enabling effective suppression of ESD, inductive switching spikes, and lightning-induced surges.
The device is rated for 600 W peak pulse power per 10/1000 μs waveform at 0.01 % duty cycle, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W. Its unidirectional configuration requires cathode-band orientation during PCB layout, and it supports surge current up to 100 A (8.3 ms half-sine) in forward direction only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - Ensures reliable turn-on above system rail with tight 5 % tolerance |
| VC @ IPPM | 26.0 V at 23.1 A - Limits protected node voltage during 600 W transient events |
| ID @ VWM | ≤1.0 μA - Negligible leakage current preserves signal integrity and battery life |
| PPPM | 600 W - Withstands high-energy transients common in automotive load-dump and industrial switching |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and high-power industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control, body electronics, and ADAS sensors |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Protected circuit return path | Connected to ground or low-impedance reference; conducts transient current to GND when VAK > VBR |
| Anode | Input line connection | Connected to signal/power line requiring protection; blocks reverse current below VWM, clamps forward surges |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surges |
| Glass-passivated junction | Delivers stable VBR across temperature (-55 °C to +150 °C) and lifetime, minimizing parameter drift in harsh environments |
| AEC-Q101 qualification | Confirms reliability for automotive applications including vibration, thermal cycling, and humidity exposure per stress test requirements |
| Low-profile SMBG package | Reduces board space vs. SMA/SMB; compatible with standard 0.2" × 0.2" copper pad layout for optimal thermal dissipation |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without moisture sensitivity concerns-no baking required prior to assembly |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power rails in vehicle body control modules from load-dump transients (up to 60 V, 400 ms). IC Role / Device Role: Unidirectional shunt clamp placed between battery feed and downstream DC/DC converter input. Use Value: Clamps peak voltage to ≤26.0 V, preventing damage to 36 V-rated regulators and ensuring uninterrupted MCU operation. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules. IC Role / Device Role: Point-of-entry protection on 4–20 mA current loop or 0–10 V analog lines exposed to relay coil kickback. Use Value: Sub-1 ns response limits voltage overshoot to <30 V, preserving 16-bit ADC accuracy and eliminating false-triggered fault detection. |
| Telecom Data Line Surge Suppression | Consumer Device USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from induced lightning surges on outdoor cabling. IC Role / Device Role: Primary-level TVS on differential bus lines, coordinated with secondary GDT or polymer PTC. Use Value: 600 W rating handles IEC 61000-4-5 combination wave (10/700 μs) up to 4 kV, maintaining signal integrity through 10 Mbps data transmission. | Use Scenario: Adding robust ESD immunity to USB 2.0 VBUS and D+/D− lines in smart home hubs and portable audio devices. IC Role / Device Role: Standalone unidirectional clamp on VBUS line; paired with bidirectional TVS on data lines. Use Value: 1.0 μA leakage avoids battery drain in always-on standby mode while passing IEC 61000-4-2 ±15 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/5B | Same VWM (16 V), identical SMB package, but lower PPPM (600 W same), slightly higher VC (27.7 V at 21.7 A) | Not AEC-Q101 qualified; intended for industrial/commercial use only | Select when automotive qualification is unnecessary and cost optimization is prioritized |
| 1.5SMC16A | Same electrical specs (VWM, VBR, VC), but larger SMC (DO-214AB) package with higher RθJA (60 °C/W) | Higher thermal mass suits high-repetition surge environments but occupies ~2.5× more PCB area | Select when board space allows and enhanced thermal handling for repetitive transients is required |
Compared with SMBJ16A-E3/5B and 1.5SMC16A, SMBG16AHE3/5B uniquely combines AEC-Q101 qualification, SMBG's compact footprint, and optimized thermal performance (RθJL = 20 °C/W) for space-constrained automotive modules where reliability and manufacturability are co-prioritized.
Availability
SMBG16AHE3/5B is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom data line surge suppression requiring stable component supply and long-term lifecycle assurance.
Supply support for SMBG16AHE3/5B 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 high-reliability, automotive-qualified components.
The SMBG series was developed specifically for AEC-Q101-compliant transient suppression in space-constrained automotive and industrial systems, balancing low clamping voltage, high surge capability, and SMT manufacturability.
FAQ
What is the maximum clamping voltage of SMBG16AHE3/5B and under what test condition is it specified?
The maximum clamping voltage (VC) of SMBG16AHE3/5B is 26.0 V, measured at a peak pulse current (IPPM) of 23.1 A using a 10/1000 μs double-exponential waveform. This value reflects the actual voltage seen by the protected circuit during a standardized 600 W transient event and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is SMBG16AHE3/5B suitable for bidirectional signal line protection?
No, SMBG16AHE3/5B is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection (e.g., AC lines or differential buses), the "CA" variant SMBG16CAHE3/5B must be used. Using SMBG16AHE3/5B on bidirectional signals risks forward conduction during negative excursions and inadequate clamping.
Does SMBG16AHE3/5B require derating at elevated ambient temperatures?
Yes, SMBG16AHE3/5B must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet 88456. At 85 °C ambient, its 600 W peak pulse power rating drops to approximately 420 W (70 %), and at 125 °C it falls to ~240 W (40 %). Designers must verify clamping performance under worst-case thermal conditions using the published derating curve.
What does the "HE3" suffix indicate in SMBG16AHE3/5B?
"HE3" denotes RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from non-automotive variants like "E3" (RoHS, industrial grade only) or "M3" (halogen-free, industrial). The "5B" suffix specifies packaging in 13-inch tape-and-reel format with 3200 units per reel, optimized for high-volume SMT assembly.
Can SMBG16AHE3/5B be used in parallel to increase surge current handling?
No-parallel connection of SMBG16AHE3/5B devices is not recommended due to VBR mismatch (±5 % tolerance), which causes uneven current sharing and potential thermal runaway. For higher surge capability, select a single higher-rated device (e.g., SMBG24AHE3/5B) or implement staged protection with upstream current-limiting elements.
SMBG16AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG16AHE3/5B FAQ
1.How can I place an order for SMBG16AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16AHE3/5B 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 SMBG16AHE3/5B reliable?
The price and inventory of SMBG16AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG16AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG16AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16AHE3/5B?
SMBG16AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16AHE3/5B 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 SMBG16AHE3/5B?
For technical support, including SMBG16AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16AHE3/5B requirements.
6.How does Aetrix verify that SMBG16AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG16AHE3/5B 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 SMBG16AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG16AHE3/5B?
All SMBG16AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16AHE3/5B, 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 SMBG16AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG16AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16AHE3/5B Tags
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