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Vishay General Semiconductor - Diodes Division SMBG16CAHE3/5B
- Part No.:
- SMBG16CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16CAHE3/5B.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,293
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Product details
Overview
SMBG16CAHE3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. 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 SMBG16CAHE3/5B datasheet, SMBG16CAHE3/5B pinout, SMBG16CAHE3/5B application, or SMBG16CAHE3/5B equivalent, key selection criteria include bidirectional surge clamping performance, low clamping ratio (VC/VBR ≈ 1.4), junction temperature range (−55 °C to +150 °C), RoHS-compliant AEC-Q101 qualification, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports fast, predictable clamping under repetitive transients.
The device uses a planar silicon junction structure optimized for high surge current handling (IPPM = 23.1 A) and thermal robustness (RθJL = 20 °C/W). It meets UL 497B recognition (QVGQ2) and is rated MSL Level 1 (260 °C reflow peak), making it suitable for high-reliability automotive and industrial PCB assemblies.
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 operating voltage with margin |
| VC @ IPPM | 26.0 V at 23.1 A - Limits protected circuit voltage during 600 W transient events |
| PPPM | 600 W (10/1000 µs) - Handles common lightning/surge waveforms per IEC 61000-4-5 |
| TJ Range | −55 °C to +150 °C - Supports operation in under-hood automotive and industrial environments |
| Leakage (ID) | ≤1.0 µA at 16 V - Minimizes standby power loss and avoids false triggering |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.10 mm (L × W × H), matte tin-plated leads, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge current toward cathode during positive overvoltage events |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge current toward anode during negative overvoltage events; symmetrical bidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC, differential, or floating signal lines without external polarity management |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-ground) surges on properly laid out PCBs |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and infotainment interfaces |
| MSL Level 1 | Supports standard lead-free reflow profiles up to 260 °C peak without preconditioning |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during clamping, reducing stress on downstream ICs like CAN transceivers or ADC front-ends |
Applications
| Automotive Sensor Protection | Industrial Ethernet PHY Protection |
|---|---|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal pair or supply rail to clamp ±25 V transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to automotive-grade microcontrollers and analog front-end ICs operating at 12 V nominal rails. | Use Scenario: Shielding 10/100BASE-TX Ethernet PHY differential pairs from ESD and surge events in factory automation gateways. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp installed at connector interface to limit common-mode surges to <30 V. Use Value: Maintains signal integrity up to 100 MHz while meeting IEC 61000-4-2 Level 4 (15 kV air, 8 kV contact) and IEC 61000-4-5 surge immunity. |
| Consumer USB Port Protection | Telecom DSL Line Interface |
Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) against human-body-model ESD and cable-induced transients in portable devices. IC Role / Device Role / Timing Role: Bidirectional TVS mounted adjacent to USB connector to shunt >8 kV ESD pulses away from USB transceiver IC. Use Value: Achieves <0.5 pF typical junction capacitance (per diode) to avoid signal degradation at 480 Mbps full-speed operation. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: High-power bidirectional clamp placed between transformer secondary and line driver IC to absorb >10 A surge currents. Use Value: Delivers 600 W pulse handling with 26.0 V clamping to keep protected ASICs within safe SOA limits during 10/1000 µs surges. |
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 | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating), different package (SMB/DO-214AA); slightly larger footprint (4.57 mm × 3.94 mm vs. 4.57 mm × 3.94 mm - identical outline but different leadform) | Not AEC-Q101 qualified; intended for commercial/industrial use only | Select SMBJ16CA only if automotive qualification is not required and existing SMB footprint is preferred. |
| SMCJ16CA | Higher PPPM = 1500 W, same VWM/VBR, larger SMC (DO-214AB) package (7.11 mm × 6.22 mm) | Used where higher surge margin is needed (e.g., outdoor telecom equipment), but requires PCB layout change | Choose SMCJ16CA when system-level surge testing exceeds IEC 61000-4-5 Level 4 and board space allows larger package. |
Compared with SMBJ16CA and SMCJ16CA, SMBG16CAHE3/5B uniquely combines AEC-Q101 qualification, SMBG's compact DO-215AA footprint, and 600 W surge capability-making it the optimal choice for space-constrained automotive modules requiring certified reliability without layout redesign.
Availability
SMBG16CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial Ethernet PHY protection, consumer USB port hardening, and telecom DSL line interface designs requiring stable component supply and long-term lifecycle support.
Supply support for SMBG16CAHE3/5B 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 engineered specifically for surface-mount transient suppression in space-constrained, high-surge environments-including automotive powertrain and ADAS systems-where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What does the 'HE3' suffix indicate in SMBG16CAHE3/5B?
The 'HE3' suffix denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads. It confirms that SMBG16CAHE3/5B meets automotive reliability standards, including temperature cycling, humidity bias, and surge endurance tests defined in AEC-Q101. This distinguishes SMBG16CAHE3/5B from non-automotive variants like SMBG16CA-E3.
Is SMBG16CAHE3/5B unidirectional or bidirectional?
SMBG16CAHE3/5B is a bidirectional TVS diode, as indicated by the 'CA' suffix. It provides symmetrical clamping for both positive and negative transients, with identical VBR (17.8–19.7 V) and VC (26.0 V) specifications in either direction. No polarity marking is present on the SMBG (DO-215AA) package.
What is the maximum clamping voltage of SMBG16CAHE3/5B and at what current?
The maximum clamping voltage (VC) of SMBG16CAHE3/5B is 26.0 V, measured at the peak pulse current (IPPM) of 23.1 A under a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88456, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuits during surge events.
Can SMBG16CAHE3/5B be used in place of SMBJ16CA in an existing design?
SMBG16CAHE3/5B shares identical electrical specs (VWM, VBR, VC, PPPM) with SMBJ16CA but uses the smaller SMBG (DO-215AA) package versus SMB (DO-214AA). While footprint dimensions are nearly identical, land pattern validation is required due to subtle leadform differences. Crucially, SMBG16CAHE3/5B adds AEC-Q101 qualification-making it suitable for automotive use where SMBJ16CA is not approved.
What is the thermal resistance specification for SMBG16CAHE3/5B?
SMBG16CAHE3/5B has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and a junction-to-ambient resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. These values enable effective heat dissipation during repetitive surge events and support reliable operation up to +150 °C junction temperature.
SMBG16CAHE3/5B 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBG16CAHE3/5B FAQ
1.How can I place an order for SMBG16CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16CAHE3/5B 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 SMBG16CAHE3/5B reliable?
The price and inventory of SMBG16CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG16CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG16CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16CAHE3/5B?
SMBG16CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16CAHE3/5B 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 SMBG16CAHE3/5B?
For technical support, including SMBG16CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16CAHE3/5B requirements.
6.How does Aetrix verify that SMBG16CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG16CAHE3/5B 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 SMBG16CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG16CAHE3/5B?
All SMBG16CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16CAHE3/5B, 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 SMBG16CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBG16CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16CAHE3/5B Tags
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