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Vishay General Semiconductor - Diodes Division SMBJ16CAHE3/5B
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- Part No.:
- SMBJ16CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CAHE3/5B.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,253
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Product details
Overview
SMBJ16CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 16 V standoff voltage (VWM), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), making it suitable for protecting MOSFETs and sensor signal lines in industrial motor drives.
For engineers reviewing the SMBJ16CAHE3/5B datasheet, SMBJ16CAHE3/5B pinout, SMBJ16CAHE3/5B application, or SMBJ16CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified between 17.8 V (min) and 19.7 V at 1.0 mA test current. Its low clamping ratio (VC/VBR ≈ 1.38) ensures effective overvoltage suppression during fast transients such as ESD or inductive switching spikes.
The device uses a glass-passivated silicon junction and meets MSL Level 1 per J-STD-020 with a 260 °C reflow peak. Its AEC-Q101 qualification (indicated by HE3 suffix) confirms suitability for automotive powertrain and body electronics where reliability under thermal cycling and humidity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 17.8 V / 19.7 V - Breakdown occurs within this range at 1.0 mA; ensures predictable turn-on across temperature and process variation. |
| VC @ IPPM | 26.0 V - Clamped voltage seen by protected circuit at 23.1 A surge; determines maximum stress on downstream components. |
| IPPM | 23.1 A - Peak surge current survivable with 10/1000 µs waveform; validates protection against IEC 61000-4-5 Level 3 surges. |
| PPPM | 600 W - Peak pulse power handling capacity; enables robust transient absorption without thermal runaway. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" pads; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts reverse surge current during negative transients; connects to line being protected. |
| Cathode | Transient current entry (positive polarity) | Accepts reverse surge current during positive transients; connects to line being protected. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces requiring extended temperature and life-cycle reliability. |
| Glass-passivated junction | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives, reducing parameter drift in humid environments. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profile (peak 260 °C), eliminating bake requirements prior to assembly. |
| 600 W 10/1000 µs capability | Meets IEC 61000-4-5 surge immunity requirements for industrial equipment and telecom infrastructure interfaces. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and current-sense amplifier inputs against inductive kickback from BLDC motor windings. IC Role / Device Role / Timing Role: Bidirectional TVS clamps ±50 V transients induced by MOSFET switching, limiting stress on op-amps and isolated gate drivers. Use Value: Prevents latch-up or permanent damage to precision analog front-ends while maintaining signal integrity during PWM commutation. |
Use Scenario: Surge suppression on LIN bus lines and door module sensor inputs exposed to load dump and battery reversal events. IC Role / Device Role / Timing Role: Fast-response TVS limits transient voltage to <26 V during 100 V/50 ms load dump pulses, preserving MCU I/O integrity. Use Value: Enables compliance with ISO 7637-2 Pulse 5a without additional filtering, reducing BOM count and PCB area. |
| Telecom Power Supply Inputs | Consumer Sensor Signal Lines |
|
Use Scenario: Input-stage protection of 24 V DC-DC converters in PoE-powered network switches against lightning-induced surges. IC Role / Device Role / Timing Role: Absorbs up to 600 W of transient energy from coupled surges on primary-side rails before regulation stage. Use Value: Maintains converter uptime during field-deployed surge events while avoiding thermal shutdown or secondary-side component overstress. |
Use Scenario: ESD protection for I²C lines connecting MEMS accelerometers and environmental sensors in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) bidirectional clamp suppresses ±8 kV HBM ESD without distorting 400 kHz clock/data waveforms. Use Value: Eliminates need for separate unidirectional TVS pairs or RC filters, simplifying layout and preserving signal rise time. |
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-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification; same SMB package. | No functional difference; selected when halogen-free material compliance is required for end-product certification. | Choose SMBJ16CA-M3/5B for consumer electronics targeting IEC 61249-2-21 or JEDEC J-STD-609A Class 2a compliance. |
| SMAJ16CAHE3/A | Lower 400 W PPPM; SMA (DO-214AC) package with smaller footprint (4.5 mm × 2.7 mm vs. 5.2 mm × 3.9 mm); same VWM/VC. | Reduced surge margin; unsuitable for IEC 61000-4-5 Level 3; limited to lower-energy ESD or board-level transients. | Select SMAJ16CAHE3/A only when space constraints prohibit SMB and application transients remain below 400 W. |
Compared with SMBJ16CAHE3/5B, the M3/5B alternative offers identical performance with halogen-free construction, while the SMAJ16CAHE3/A trades 33 % peak power capability for 30 % smaller PCB area - requiring careful surge threat assessment before substitution.
Availability
SMBJ16CAHE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supply inputs requiring stable component supply with AEC-Q101 traceability and full RoHS compliance.
Supply support for SMBJ16CAHE3/5B 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, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMBJ series was developed specifically for high-reliability transient suppression in automotive and industrial systems, balancing high surge capability with compact surface-mount packaging and AEC-Q101 validation.
FAQ
What does the "CA" suffix indicate in SMBJ16CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ16CAHE3/5B provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., SMBJ16A), it has no cathode band marking and functions identically in either polarity - essential for protecting AC-coupled or floating signal paths without polarity constraints.
Is SMBJ16CAHE3/5B qualified for automotive applications?
Yes, SMBJ16CAHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. This qualification covers temperature cycling, humidity testing, and mechanical shock validation, making SMBJ16CAHE3/5B suitable for non-safety-critical automotive systems including body electronics, infotainment power supplies, and sensor interfaces.
What is the maximum clamping voltage of SMBJ16CAHE3/5B under surge conditions?
The maximum clamping voltage (VC) of SMBJ16CAHE3/5B is 26.0 V at 23.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the SMB (DO-214AA) package of SMBJ16CAHE3/5B compare to SMA (DO-214AC)?
The SMB package of SMBJ16CAHE3/5B measures 5.21 mm × 3.94 mm × 2.20 mm, offering 50 % higher surge power rating (600 W vs. 400 W) than SMA-packaged equivalents like SMAJ16CAHE3/A. Its larger copper pad area improves thermal dissipation, supporting sustained operation in high-ambient industrial environments where the smaller SMA variant would require derating.
What is the standoff voltage (VWM) of SMBJ16CAHE3/5B and why does it matter?
The standoff voltage (VWM) of SMBJ16CAHE3/5B is 16 V - the maximum continuous reverse voltage the device tolerates without entering breakdown. This parameter defines the operating margin between normal circuit voltage and clamping onset; selecting VWM ≥ 1.1× nominal line voltage prevents leakage-induced power loss or false triggering during steady-state operation.
SMBJ16CAHE3/5B 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:
- -
- 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 (SMBJ)
SMBJ16CAHE3/5B FAQ
1.How can I place an order for SMBJ16CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CAHE3/5B 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 SMBJ16CAHE3/5B reliable?
The price and inventory of SMBJ16CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ16CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CAHE3/5B?
SMBJ16CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CAHE3/5B 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 SMBJ16CAHE3/5B?
For technical support, including SMBJ16CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ16CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ16CAHE3/5B 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 SMBJ16CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ16CAHE3/5B?
All SMBJ16CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CAHE3/5B, 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 SMBJ16CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ16CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CAHE3/5B Tags
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