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Vishay General Semiconductor - Diodes Division SMBJ16CD-M3/H
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- Part No.:
- SMBJ16CD-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16CD-M3/H.pdf
- Description:
- TVS DIODE 16VWM 25.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:11,020
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Product details
Overview
SMBJ16CD-M3/H from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events on signal/power lines. It features a 16 V stand-off voltage (VWM), 18.1–19.4 V breakdown voltage (VBR) at 1 mA, 25.6 V maximum clamping voltage (VC) at 23.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMBJ16CD-M3/H datasheet, SMBJ16CD-M3/H pinout, SMBJ16CD-M3/H application, or SMBJ16CD-M3/H equivalent, this device is selected for robust overvoltage protection in automotive sensor interfaces, industrial I/O modules, telecom line cards, and USB/RS-485 data lines where bidirectional surge immunity and low leakage (<0.5 μA at VWM) are critical.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its low incremental surge resistance and fast response time ensure effective clamping before downstream ICs experience overstress.
The device meets MSL Level 1 per J-STD-020, supports reflow soldering up to 260 °C peak, and is halogen-free, RoHS-compliant, and qualified for industrial temperature range (−55 °C to +150 °C junction).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before significant leakage; defines safe signal swing margin in protected circuit. |
| VBR min/max | 18.1 V / 19.4 V at 1 mA - Tight ±3.5 % tolerance ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 25.6 V at 23.4 A - Clamping voltage during 10/1000 μs surge; limits stress on downstream MOSFETs or interface ICs. |
| PPPM | 600 W - Peak pulse power handling capability under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | <0.5 μA - Ultra-low reverse leakage preserves signal integrity and battery life in high-impedance sensor or analog front-end circuits. |
| Package | SMB (DO-214AA) - Surface-mount outline with 2.20 mm × 3.94 mm footprint; compatible with automated placement and standard PCB pad layout (5.0 mm × 5.0 mm copper). |
Pinout & Package
Two-terminal device in SMB (DO-214AA) package. No cathode band marking - bidirectional symmetry means terminals are functionally identical; orientation does not affect electrical behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal conducts surge current toward the other during overvoltage event in either polarity; no polarity-dependent routing required. |
| Case (cathode side in unidirectional variants) | Thermal and mechanical interface | Exposed metal slug provides thermal conduction path to PCB copper; requires minimum 5.0 mm × 5.0 mm copper pad for rated power dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or floating inputs without external polarity management. |
| ±3.5 % VBR tolerance | Reduces design margin overhead and enables tighter system-level voltage coordination between TVS and IC absolute maximum ratings. |
| 600 W peak pulse rating | Supports compliance with IEC 61000-4-5 (10/1000 μs) surge tests up to 4 kV open-circuit voltage in typical PCB layouts. |
| MSL Level 1 rating | Permits use in standard SMT reflow processes without baking or special handling; peak temperature support up to 260 °C. |
| Halogen-free & RoHS | Fulfills environmental compliance requirements for industrial, automotive, and telecom equipment sold in EU, China, and North America. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at connector entry point to shunt surge energy before reaching MCU ADC or transceiver. Use Value: Maintains signal fidelity under 10/1000 μs surges up to 23.4 A while limiting clamped voltage to ≤25.6 V - below typical 3.3 V/5 V interface IC damage thresholds. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers (e.g., MAX13487, SN65HVD72) against lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary line-side TVS mounted differential across A/B lines to clamp common-mode and differential-mode transients simultaneously. Use Value: Symmetric breakdown ensures equal clamping on both polarities of differential pair; low capacitance avoids signal integrity degradation at 250 kbps–10 Mbps data rates. |
| USB 2.0 Data Line Protection | Telecom DSL Line Card |
Use Scenario: ESD and surge protection for D+ and D− lines in USB host/device ports exposed to human contact and hot-plug events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at USB connector to absorb ±8 kV contact / ±15 kV air-gap ESD per IEC 61000-4-2. Use Value: Sub-1 pF junction capacitance (typ.) preserves signal rise/fall times; clamps ESD pulses within <1 ns to prevent latch-up in USB PHY ICs. |
Use Scenario: Overvoltage protection on POTS/DSL line interface circuits subjected to lightning surges and power cross events. IC Role / Device Role / Timing Role: Primary surge suppression stage ahead of hybrid transformer and line driver ICs in central office or CPE equipment. Use Value: 600 W rating handles repetitive 10/1000 μs surges up to 4 kV; 150 °C max junction temperature supports operation in sealed, high-ambient telecom enclosures. |
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 (Vishay) | Same VWM/VBR/VC specs; differs only in packaging (tape-and-reel vs. bulk) and MSL level (Level 1 vs. Level 1 confirmed); identical electrical and thermal performance. | No functional difference; suitable for same PCB layout and protection topology. | Select when sourcing from distributors stocking Vishay's "E3" series or requiring alternate reel configuration. |
| 1.5SMC16CA (ON Semiconductor) | Same 16 V VWM, 18.9–20.9 V VBR range, 25.6 V VC, but in larger SMC (DO-214AB) package (7.11 mm × 6.22 mm vs. SMB's 4.57 mm × 3.94 mm); higher RθJA (100 °C/W vs. 125 °C/W). | Requires larger PCB footprint and revised thermal pad layout; may need derating in high-density industrial modules. | Choose only if existing design uses SMC footprint or requires higher steady-state power margin (1.5 W vs. 1.0 W at TA = 25 °C). |
Compared with SMBJ16CD-M3/H, SMBJ16CA-E3/52 offers identical protection performance in an alternative tape format, while 1.5SMC16CA trades compactness for slightly better thermal mass - making SMBJ16CD-M3/H optimal for space-constrained, high-density designs requiring strict MSL-1 compliance and minimal board area.
Availability
SMBJ16CD-M3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 gateways, and telecom line card designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ16CD-M3/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 reliability, precision, and industrial-grade qualification.
The SMBJ series was engineered specifically for high-reliability transient suppression in harsh environments - targeting automotive, industrial automation, and telecom infrastructure where consistent clamping, tight tolerances, and MSL-1 process compatibility are mandatory.
FAQ
What is the polarity configuration of SMBJ16CD-M3/H?
SMBJ16CD-M3/H is a bidirectional TVS diode, meaning it has no cathode marking and functions identically in both directions. This allows it to protect AC-coupled or floating signal paths - such as RS-485 differential pairs or USB D+/D− lines - without requiring polarity-aware PCB layout. The SMBJ16CD-M3/H achieves symmetrical clamping by integrating two opposing avalanche diodes in series.
Does SMBJ16CD-M3/H meet IEC 61000-4-5 surge immunity requirements?
Yes, SMBJ16CD-M3/H is rated for 600 W peak pulse power with a 10/1000 μs waveform, which aligns with IEC 61000-4-5 Level 4 testing (4 kV open-circuit voltage into 2 Ω source impedance). When mounted on the recommended 5.0 mm × 5.0 mm copper pad, the SMBJ16CD-M3/H reliably clamps surges to ≤25.6 V - well below the damage threshold of most protected interface ICs.
What is the maximum operating temperature for SMBJ16CD-M3/H?
The SMBJ16CD-M3/H has a maximum junction temperature (TJ max) of +150 °C and operates across −55 °C to +150 °C. Its thermal resistance junction-to-ambient (RθJA) is 125 °C/W on standard PCB pads, so at 25 °C ambient, it can dissipate 1.0 W continuously. Derating curves in the Vishay datasheet (Fig. 5) must be applied for elevated ambient conditions - for example, SMBJ16CD-M3/H supports ~0.5 W at 75 °C ambient.
How does the M3/H suffix affect SMBJ16CD-M3/H specifications?
The "M3" suffix denotes halogen-free, RoHS-compliant construction with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards, plus JESD 201 Class 2 whisker resistance. The "/H" indicates packaging in 7″ plastic tape-and-reel (750 units per reel). These are manufacturing and packaging identifiers - all electrical, thermal, and protection specifications of SMBJ16CD-M3/H remain identical to base SMBJ16CD.
Can SMBJ16CD-M3/H replace unidirectional SMBJ16D-M3/H in existing designs?
No - SMBJ16CD-M3/H is bidirectional and lacks a cathode band, whereas SMBJ16D-M3/H is unidirectional with defined polarity. Direct substitution would compromise protection on DC-biased lines (e.g., 5 V power rail or single-ended UART), where reverse conduction could cause latch-up or short-circuit. SMBJ16CD-M3/H is only suitable where bidirectional clamping is intentionally designed - always verify circuit topology before substituting SMBJ16CD-M3/H.
SMBJ16CD-M3/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 18.1V
- Voltage - Clamping (Max) @ Ipp:
- 25.6V
- Current - Peak Pulse (10/1000µs):
- 23.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ16CD-M3/H FAQ
1.How can I place an order for SMBJ16CD-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16CD-M3/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 SMBJ16CD-M3/H reliable?
The price and inventory of SMBJ16CD-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16CD-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ16CD-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16CD-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16CD-M3/H?
SMBJ16CD-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16CD-M3/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 SMBJ16CD-M3/H?
For technical support, including SMBJ16CD-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16CD-M3/H requirements.
6.How does Aetrix verify that SMBJ16CD-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ16CD-M3/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 SMBJ16CD-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ16CD-M3/H?
All SMBJ16CD-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16CD-M3/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 SMBJ16CD-M3/H part is unused and in its original packaging.
Return procedure for SMBJ16CD-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16CD-M3/H Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
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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