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Vishay General Semiconductor - Diodes Division SMBJ16CAHM3/H
- Part No.:
- SMBJ16CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CAHM3/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,624
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Product details
Overview
SMBJ16CAHM3/H 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 16 V standoff voltage (VWM), 17.8–19.7 V breakdown voltage (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 - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ16CAHM3/H datasheet, SMBJ16CAHM3/H pinout, SMBJ16CAHM3/H application, or SMBJ16CAHM3/H equivalent, this device is selected for robust ESD and surge protection where bidirectional clamping, low clamping ratio (VC/VBR ≈ 1.45), AEC-Q101 qualification, halogen-free RoHS compliance, and MSL Level 1 reflow capability are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), enabling effective suppression of EFT, lightning-induced surges, and inductive switching spikes.
The device is rated for 150 °C maximum junction temperature and exhibits 0.089 %/°C temperature coefficient of VBR. Thermal resistance is 100 °C/W (junction-to-ambient, on 0.2" × 0.2" copper pads) and 20 °C/W (junction-to-lead), supporting reliable operation under repetitive surge conditions with 0.01 % duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamped voltage during 10/1000 µs surge; limits stress on downstream components to safe levels. |
| PPPM | 600 W - Peak pulse power handling capacity; supports high-energy transient suppression without failure. |
| IDRM @ VWM | <1.0 µA - Ultra-low reverse leakage at rated standoff voltage; prevents signal distortion or power loss in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated placement. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are symmetrical; device functions identically regardless of orientation in circuit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Transient current entry point (negative polarity event) | Accepts surge current during negative-going transients; forms one side of symmetrical clamping path. |
| Cathode (Terminal 2) | Transient current entry point (positive polarity event) | Accepts surge current during positive-going transients; completes bidirectional clamping loop with Terminal 1. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy surges common in industrial motor drives and telecom line interfaces. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22-A114. |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for consumer, medical, and export-controlled applications. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback signal lines in variable-frequency drives from inductive kickback and ground bounce. IC Role / Device Role / Timing Role: Bidirectional TVS placed across gate-source or signal-return paths to clamp ±20–30 V transients within nanoseconds. Use Value: Prevents MOSFET gate oxide damage and ADC input saturation by limiting clamped voltage to 26.0 V while sustaining 23.1 A surge current. |
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) from battery dump and load-dump events in engine compartments. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between signal line and chassis ground to suppress ±100 V/50 ms transients per ISO 7637-2. Use Value: Maintains signal integrity during 12 V system load-dump pulses by clamping at 26.0 V with <1 µA leakage at 16 V nominal supply. |
| Telecom Line Interface | Consumer Power Adapter Feedback Loop |
|
Use Scenario: Safeguarding Ethernet PHY interface pins and PoE controller inputs against lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Bidirectional TVS installed differential-mode across data pairs to absorb common-mode transients coupled onto lines. Use Value: Achieves 600 W surge rating with 26.0 V clamping to prevent PHY latch-up while preserving signal bandwidth via low junction capacitance (~100 pF at 0 V). |
Use Scenario: Securing optocoupler feedback path in isolated AC/DC adapters against secondary-side voltage spikes during output short-circuit recovery. IC Role / Device Role / Timing Role: TVS placed across optocoupler input LED to limit reverse voltage and clamp forward overcurrent transients. Use Value: Ensures optocoupler longevity by limiting reverse voltage to ≤26.0 V and restricting peak forward surge to 23.1 A with 1.0 µs response. |
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/H | Same electrical specs, but RoHS-compliant commercial grade (non-halogen-free); not AEC-Q101 qualified. | Lacks automotive qualification; suitable for industrial/commercial designs without automotive compliance mandates. | Select when halogen-free requirement is absent and AEC-Q101 is not needed. |
| SMAJ16CAHM3 | Lower 400 W PPPM; same VWM/VC but reduced IPPM (14.3 A); SMA package (smaller footprint, higher thermal resistance). | Insufficient for 600 W surge environments; limited to lower-energy signal-line protection. | Choose only if board space is constrained and surge energy is confirmed ≤400 W. |
Compared with SMBJ16CAHE3/H, SMBJ16CAHM3/H adds halogen-free construction and AEC-Q101 qualification without sacrificing clamping performance; versus SMAJ16CAHM3, it delivers 50 % higher surge power handling in a slightly larger but thermally superior SMB package.
Availability
SMBJ16CAHM3/H is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom line protection, and consumer power adapter feedback loop applications requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for SMBJ16CAHM3/H 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, high-efficiency, and automotive-qualified solutions.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where consistent clamping, low leakage, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SMBJ16CAHM3/H at its rated peak pulse current?
The SMBJ16CAHM3/H has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 23.1 A, measured using the standardized 10/1000 µs double-exponential waveform. This value ensures downstream ICs and MOSFETs experience controlled overvoltage stress during surge events, directly supporting design margin calculations for protected circuits.
Is SMBJ16CAHM3/H suitable for automotive applications?
Yes, SMBJ16CAHM3/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials - explicitly designated for automotive use via the HM3 suffix. It meets stress test requirements including high-temperature reverse bias, temperature cycling, and ESD, making it appropriate for engine control units, body electronics, and ADAS sensor interfaces.
How does the bidirectional configuration of SMBJ16CAHM3/H affect circuit layout?
The SMBJ16CAHM3/H has no polarity marking and functions identically in either orientation, simplifying PCB layout for AC-coupled or floating nodes. Unlike unidirectional TVS diodes, it eliminates the need for cathode alignment checks during placement and supports symmetric protection on differential signal lines without additional routing constraints.
What is the maximum steady-state power dissipation of SMBJ16CAHM3/H?
The SMBJ16CAHM3/H has a maximum steady-state power dissipation (PD) of 5.0 W at 50 °C ambient temperature on an infinite heatsink. In typical SMB-mounted configurations (0.2" × 0.2" copper pads), derating applies above 25 °C per Figure 2 in the datasheet, with RθJA = 100 °C/W defining thermal limits for continuous operation.
Does SMBJ16CAHM3/H meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, SMBJ16CAHM3/H meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This eliminates the need for pre-baking and allows direct placement into standard lead-free reflow profiles, supporting high-yield automated assembly in commercial and automotive manufacturing lines.
SMBJ16CAHM3/H 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:
- 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/H FAQ
1.How can I place an order for SMBJ16CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CAHM3/H 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/H reliable?
The price and inventory of SMBJ16CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMBJ16CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CAHM3/H?
SMBJ16CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CAHM3/H 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/H?
For technical support, including SMBJ16CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CAHM3/H requirements.
6.How does Aetrix verify that SMBJ16CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ16CAHM3/H 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/H meets industry standards.
7.What is the process for return or replacement of SMBJ16CAHM3/H?
All SMBJ16CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CAHM3/H, 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/H part is unused and in its original packaging.
Return procedure for SMBJ16CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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