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Vishay General Semiconductor - Diodes Division SMBJ16CAHM3/I
- Part No.:
- SMBJ16CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CAHM3/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,796
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Product details
Overview
SMBJ16CAHM3/I 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 and power lines. It features a 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ16CAHM3/I datasheet, SMBJ16CAHM3/I pinout, SMBJ16CAHM3/I application, or SMBJ16CAHM3/I equivalent, this device is selected for robust ESD and surge protection where bidirectional clamping, low leakage (<1.0 µA at VWM), and AEC-Q101 qualification (via HM3 suffix) are required in space-constrained PCB layouts.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 17.8–19.7 V (min/max) under 1.0 mA test current. Its clamping behavior is defined by a low dynamic impedance and fast response time (<1 ns), enabling effective suppression of lightning-induced surges and inductive switching transients.
The device is rated for repetitive 10/1000 µs pulses at 0.01% duty cycle, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W. It meets J-STD-020 MSL Level 1, supports lead-free reflow up to 260 °C peak, and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line operating margin. |
| VBR (min/max) | 17.8 V / 19.7 V - Breakdown occurs within this range at 1.0 mA; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 26.0 V - Clamped voltage at 23.1 A peak pulse current; limits downstream component stress during surge. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 surge immunity. |
| IPPM | 23.1 A - Maximum non-repetitive surge current the device safely clamps without degradation. |
| ID @ VWM | <1.0 µA - Reverse leakage at stand-off voltage; minimizes quiescent power loss in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial ambient environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, with matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Common terminal pair | Both terminals function identically; voltage clamping occurs symmetrically regardless of polarity applied. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 4 kV surge tests (line-to-ground) when properly mounted on 5.0 mm × 5.0 mm copper pads. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; compatible with high-volume SMT assembly. |
| Low clamping ratio (VC/VWM = 1.625) | Minimizes overvoltage overshoot during transient events, improving safety margin for 16 V-rated downstream ICs. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protection of encoder feedback lines and gate driver signal traces against inductive kickback from brushed DC motors. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp ±2 kV EFT and 1 kV surge pulses. Use Value: Prevents latch-up or oxide damage in microcontroller GPIOs and isolated gate drivers operating at 12–24 V rails. |
Use Scenario: Shielding LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control modules. IC Role / Device Role / Timing Role: Standoff voltage matched to 12 V system rail; clamps load dump transients up to ISO 7637-2 Pulse 5a. Use Value: Maintains signal integrity during cold-crank and jump-start conditions while meeting AEC-Q100 Class 0 requirements. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
|
Use Scenario: Secondary-side overvoltage suppression on 48 V PoE injectors and telecom rectifier outputs. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing differential-mode surges induced by nearby lightning strikes or AC line faults. Use Value: Limits voltage excursion to ≤26 V during 600 W transients, protecting downstream DC-DC controllers and PMICs. |
Use Scenario: Bidirectional protection of USB-C CC and VCONN lines against ESD (±15 kV contact) and hot-swap voltage spikes. IC Role / Device Role / Timing Role: Low-capacitance design (typ. <50 pF) avoids signal integrity degradation on high-speed CC negotiation lines. Use Value: Enables compliance with IEC 61000-4-2 Level 4 without adding series impedance or degrading USB PD handshake timing. |
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-E3/52 | RoHS-compliant commercial grade (E3), not AEC-Q101 qualified; same VWM, VC, and PPPM. | Lacks automotive qualification; suitable for industrial/commercial designs without AEC requirements. | Select when cost sensitivity outweighs automotive reliability validation needs. |
| SAC16-03 | Same VWM (16 V) but lower PPPM (300 W); DO-214AB package (slightly larger footprint). | Lower surge rating limits use to sub-IEC Level 3 applications; requires layout revision due to different package outline. | Choose only if board space allows DO-214AB and surge threat level is ≤2 kV. |
Compared with SMBJ16CAHM3/I, the E3 variant offers identical electrical performance without automotive qualification, while SAC16-03 trades half the surge power for legacy package compatibility - making SMBJ16CAHM3/I the optimal choice for new AEC-Q101-compliant designs needing full 600 W protection in SMB footprint.
Availability
SMBJ16CAHM3/I is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom power supply input, and consumer USB-C port protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ16CAHM3/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 delivers standardized, high-power TVS protection targeting automotive, industrial, and telecom systems where bidirectional surge resilience and AEC-Q101 compliance are mandatory design criteria.
FAQ
What is the clamping voltage of SMBJ16CAHM3/I at its rated peak pulse current?
The SMBJ16CAHM3/I has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 23.1 A, measured using the standard 10/1000 µs waveform. This value ensures downstream components see no more than 26.0 V during surge events, providing a critical safety margin for 16 V nominal systems. The SMBJ16CAHM3/I maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ16CAHM3/I suitable for automotive applications?
Yes, SMBJ16CAHM3/I is AEC-Q101 qualified, as indicated by the "HM3" suffix - denoting halogen-free, RoHS-compliant, and automotive-grade reliability. It undergoes stress testing for temperature cycling, humidity bias, and mechanical shock per AEC-Q101. The SMBJ16CAHM3/I is commonly deployed in engine control units, body electronics, and ADAS sensor interfaces where transient immunity and long-term stability are essential.
How does the bidirectional nature of SMBJ16CAHM3/I affect its circuit placement?
The SMBJ16CAHM3/I has no polarity marking and functions identically in both directions, allowing placement across any two nodes requiring symmetrical overvoltage protection - such as differential signal pairs, AC-coupled lines, or floating power rails. Unlike unidirectional TVS diodes, the SMBJ16CAHM3/I eliminates orientation errors during automated placement and simplifies schematic symbol usage, reducing design and manufacturing risk.
What is the maximum reverse leakage current of SMBJ16CAHM3/I at its stand-off voltage?
The SMBJ16CAHM3/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 16 V stand-off voltage (VWM), measured at 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in battery-powered systems. The SMBJ16CAHM3/I maintains leakage below 5 µA even at elevated temperatures up to +125 °C.
Does SMBJ16CAHM3/I require special PCB layout considerations for optimal surge performance?
Yes - to achieve its rated 600 W peak pulse power, the SMBJ16CAHM3/I must be mounted on minimum recommended copper pads: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal, per Vishay's datasheet. Smaller pads increase thermal resistance and reduce surge current handling. The SMBJ16CAHM3/I also benefits from short, direct traces to protected nodes and grounding to a solid plane to minimize inductance in the clamping path.
SMBJ16CAHM3/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:
- 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/I FAQ
1.How can I place an order for SMBJ16CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CAHM3/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/I reliable?
The price and inventory of SMBJ16CAHM3/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/I is usually 5 days.
3.What payment methods are accepted for SMBJ16CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CAHM3/I?
SMBJ16CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CAHM3/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/I?
For technical support, including SMBJ16CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CAHM3/I requirements.
6.How does Aetrix verify that SMBJ16CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ16CAHM3/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/I meets industry standards.
7.What is the process for return or replacement of SMBJ16CAHM3/I?
All SMBJ16CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CAHM3/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/I part is unused and in its original packaging.
Return procedure for SMBJ16CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CAHM3/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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