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Vishay General Semiconductor - Diodes Division SMBJ16CAHM3_A/I
- Part No.:
- SMBJ16CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CAHM3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,597
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Product details
Overview
SMBJ16CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 16 V standoff voltage (VWM), 17.8–19.7 V breakdown range (VBR at 1 mA), 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 automotive body control modules.
For engineers reviewing the SMBJ16CAHM3_A/I datasheet, SMBJ16CAHM3_A/I pinout, SMBJ16CAHM3_A/I application, or SMBJ16CAHM3_A/I equivalent, key selection criteria include bidirectional surge protection capability, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical bidirectional conduction - no polarity marking required. Its silicon avalanche junction delivers sub-nanosecond response to ESD and lightning-induced transients, maintaining stable clamping performance across -55 °C to +150 °C junction temperature range.
Designed for repetitive surge duty cycle ≤ 0.01 %, it sustains 600 W peak pulse power under standardized 10/1000 µs waveform while limiting transient voltage to ≤ 26.0 V at 23.1 A. The glass-passivated chip junction ensures low incremental surge resistance and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
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 - guaranteed breakdown threshold defining turn-on precision |
| VC @ IPPM | 26.0 V at 23.1 A - clamped voltage during 600 W transient, critical for downstream IC survival |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform, defines surge energy capacity |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, determines derating above 25 °C |
| Package | SMB (DO-214AA) - 0.220" × 0.155" footprint compatible with standard SMT pick-and-place |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, with mechanical dimensions per Vishay spec: length 5.59 mm, width 3.94 mm, height 2.20 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No defined anode/cathode - identical conduction in both directions for AC or floating-line protection |
| Case (body) | Thermal and mechanical interface | Plastic molding meets UL 94 V-0; mounted on 5.0 mm × 5.0 mm copper pads for optimal heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including body electronics and infotainment power rails |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets environmental compliance requirements for global OEM supply chains without compromising surge robustness |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from inductive load switching in motor drivers and solenoid controls |
| Low clamping ratio (VC/VBR ≈ 1.41) | Minimizes overvoltage stress on protected ICs - e.g., keeps 3.3 V microcontroller I/O within safe margin |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow without moisture-related popcorning or delamination |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting RS-485 communication lines in factory automation PLCs against EFT and surge events. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair to clamp common-mode transients without disrupting data integrity. Use Value: Limits induced surges to ≤26.0 V, preventing damage to isolated transceivers such as ADM2483 while maintaining signal fidelity. |
Use Scenario: Safeguarding LIN bus nodes in door module ECUs exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Parallel-connected TVS on LIN line to absorb 600 W pulses while preserving <1 µs response for real-time fault containment. Use Value: Enables reliable operation under ISO 7637-2 Pulse 5a (load dump) with no latch-up or parametric shift in protected transceiver. |
| Consumer Power Adapter Input | Telecom PoE Port Protection |
|
Use Scenario: Secondary-side transient suppression on 12 V DC output of wall adapters used in smart home hubs. IC Role / Device Role / Timing Role: Clamping device between VOUT and GND to suppress switching noise and external surge coupling. Use Value: Maintains regulated output stability by clamping spikes to 26.0 V before they reach downstream DC-DC converters or USB controllers. |
Use Scenario: Data line protection on IEEE 802.3af/at Power over Ethernet (PoE) injectors and splitters. IC Role / Device Role / Timing Role: Bidirectional TVS on each twisted pair to handle mode-specific surges without affecting 100BASE-TX signaling. Use Value: Survives repeated 10/1000 µs surges up to 600 W while adding <1 pF capacitance - negligible impact on 100 MHz Ethernet bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CAHE3_A/I | Same electrical specs; RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification | Suitable for commercial-grade industrial equipment where automotive qualification is unnecessary | Select when halogen-free requirement is waived and cost optimization is prioritized over automotive compliance |
| SMAJ16CAHM3_A/I | Lower 400 W PPPM; same VWM/VC but reduced IPPM (15.4 A); SMA package (smaller footprint) | Fits space-constrained designs with lower surge exposure, e.g., portable medical sensors | Choose only if system-level surge testing confirms 400 W rating suffices and PCB layout allows smaller SMA footprint |
Compared with SMBJ16CAHM3_A/I, the HE3 variant trades halogen-free construction and AEC-Q101 for lower cost in non-automotive settings, while the SMAJ16CAHM3_A/I reduces surge capacity and physical size - requiring explicit validation of both energy handling and board area constraints before substitution.
Availability
SMBJ16CAHM3_A/I is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, consumer power adapter outputs, and telecom PoE port protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ16CAHM3_A/I 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 reliability, efficiency, and application-specific optimization.
The SMBJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where consistent clamping performance and AEC-Q101 validation are mandatory.
FAQ
What does the "CA" suffix indicate in SMBJ16CAHM3_A/I?
The "CA" suffix denotes a bidirectional configuration - meaning SMBJ16CAHM3_A/I conducts and clamps symmetrically in both polarities, making it ideal for AC-coupled or floating signal lines like RS-485, CAN, or LIN buses where polarity cannot be assumed. Unlike unidirectional variants (e.g., SMBJ16A), it has no cathode band marking and exhibits identical VBR and VC in either direction.
Is SMBJ16CAHM3_A/I qualified for automotive use?
Yes, SMBJ16CAHM3_A/I is AEC-Q101 qualified - confirmed by Vishay's HM3 suffix designation and documentation in datasheet revision 09-Jan-2024. This qualification covers stress tests including temperature cycling, humidity bias HAST, and mechanical shock, validating its suitability for under-hood and cabin-mounted automotive ECUs without derating.
What is the maximum clamping voltage of SMBJ16CAHM3_A/I and at what current is it specified?
The maximum clamping voltage of SMBJ16CAHM3_A/I is 26.0 V, measured at 23.1 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range (-55 °C to +150 °C) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
How does the HM3 suffix differ from the HE3 suffix in Vishay's SMBJ ordering codes?
The HM3 suffix in SMBJ16CAHM3_A/I indicates halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, whereas HE3 denotes RoHS-compliant and AEC-Q101 qualified but not halogen-free. Both meet automotive reliability standards, but HM3 satisfies stricter environmental mandates for halogen-free materials in Tier 1 automotive supply chains.
Can SMBJ16CAHM3_A/I be used in place of a unidirectional TVS like SMBJ16A?
No - SMBJ16CAHM3_A/I is strictly bidirectional and must not replace unidirectional SMBJ16A in DC-biased circuits such as power rail protection, where reverse leakage or forward conduction could disrupt system operation. Substitution requires verifying circuit topology supports symmetrical clamping and confirming no DC bias exceeds VWM in either polarity.
SMBJ16CAHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ16CAHM3_A/I FAQ
1.How can I place an order for SMBJ16CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CAHM3_A/I 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 SMBJ16CAHM3_A/I reliable?
The price and inventory of SMBJ16CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ16CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CAHM3_A/I?
SMBJ16CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CAHM3_A/I 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 SMBJ16CAHM3_A/I?
For technical support, including SMBJ16CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CAHM3_A/I requirements.
6.How does Aetrix verify that SMBJ16CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ16CAHM3_A/I 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 SMBJ16CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ16CAHM3_A/I?
All SMBJ16CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CAHM3_A/I, 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 SMBJ16CAHM3_A/I part is unused and in its original packaging.
Return procedure for SMBJ16CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CAHM3_A/I Tags
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DESD3V3E1BL-7B
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