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Vishay General Semiconductor - Diodes Division SMB10J14AHM3_A/I
- Part No.:
- SMB10J14AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14AHM3_A/I.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,416
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Product details
Overview
SMB10J14AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 14 V stand-off voltage (VWM), 15.6–17.2 V breakdown voltage (VBR), 23.2 V clamping voltage (VC) at 43.1 A peak pulse current (IPPM), and 1000 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial power supply inputs.
For engineers reviewing the SMB10J14AHM3_A/I datasheet, SMB10J14AHM3_A/I pinout, SMB10J14AHM3_A/I application, or SMB10J14AHM3_A/I equivalent, key selection criteria include clamping performance under 1000 W surges, AEC-Q101 qualification for automotive use, unidirectional polarity with cathode band marking, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a silicon avalanche diode that enters controlled breakdown above its VWM to clamp transient overvoltages. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1.0 µA at 14 V), while thermal resistance RθJA = 72 °C/W enables reliable operation up to TJ = +150 °C when mounted per recommended pad layout.
The SMB10J14AHM3_A/I delivers fast response time (<1 ns), low incremental surge resistance, and meets MSL Level 1 per J-STD-020 (peak reflow 260 °C). The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification - critical for automotive ECUs and ADAS sensor modules requiring long-term reliability under cyclic thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V automotive systems. |
| VBR min/max | 15.6 V / 17.2 V at 1.0 mA - tight breakdown window ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 23.2 V at 43.1 A - clamping voltage limits downstream IC stress during 1000 W transients (10/1000 µs). |
| PPPM | 1000 W - peak surge power handling capacity with standard test waveform; supports ISO 7637-2 Pulse 1/2a/5a compliance. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves battery life in always-on automotive modules. |
| TJ max | +150 °C - junction temperature rating enables deployment near hot components like power MOSFETs or motor drivers. |
| Package | SMB (DO-214AA) - surface-mount outline with 0.220" × 0.130" footprint; compatible with standard pick-and-place and reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by color band on one end. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per datasheet Fig. 2 derating curve.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection to protected circuit ground or return path | Connected to system GND or low-impedance return; carries full surge current during clamping event. |
| Cathode | High-side connection to protected line (e.g., 12 V rail or signal) | Marked with color band; ties to input rail or signal line being protected; voltage referenced to anode during conduction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, body electronics, and infotainment. |
| Halogen-free & RoHS-compliant (HM3) | Meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability - supports green manufacturing and regulatory compliance. |
| Low-profile SMB package | Height ≤0.086" (2.20 mm); enables dense PCB layouts in space-constrained modules like radar sensors or camera ECUs. |
| Fast response time | <1 ns turn-on latency - clamps transients before sensitive logic or analog front-ends are damaged. |
| 1000 W peak pulse power | Handles severe load-dump and inductive switching events without degradation - exceeds ISO 16750-2 requirements for 12 V systems. |
Applications
| Automotive Sensor Protection | Industrial Power Input |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from ESD and load dump in vehicle cabins. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor VCC line and GND to shunt transients before reaching ASIC or MCU I/O. Use Value: Clamps 1000 W surges to 23.2 V while maintaining <1.0 µA leakage - prevents false triggering and preserves signal integrity in 12 V domains. |
Use Scenario: Safeguarding 24 V DC input stages of PLC I/O modules against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail upstream of DC-DC converters and LDOs. Use Value: Withstands repeated 10/1000 µs surges up to 43.1 A without parameter shift - extends field lifetime in factory automation environments. |
| Consumer Power Adapter | Telecom Interface Protection |
|
Use Scenario: Secondary-side surge suppression in USB-C PD adapters and wall chargers exposed to mains-coupled noise. IC Role / Device Role / Timing Role: Final-stage TVS on +5 V/+9 V/+15 V output rails to protect connected devices during plug/unplug events. Use Value: 14 V VWM provides 20 % margin above nominal 12 V output; 23.2 V VC ensures downstream USB controllers remain within absolute max ratings. |
Use Scenario: Protecting Ethernet PHYs and RS-485 transceivers in base station backhaul units from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-line defense on data line pairs (e.g., TX+/TX−) referenced to local chassis ground. Use Value: Low capacitance (typ. <100 pF at 0 V) avoids signal integrity loss at 100 Mbps; AEC-Q101 grade adds robustness for harsh telecom sites. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A-E3/52 | Same VWM (14 V), VBR (15.6–17.2 V), and PPPM (1000 W), but commercial-grade (non-AEC-Q101) and RoHS-compliant only (not halogen-free). | Lacks automotive qualification and halogen-free certification; suitable for industrial/commercial power supplies where AEC-Q101 is not mandated. | Select SMBJ14A-E3/52 for cost-sensitive non-automotive designs requiring identical electrical specs but no automotive reliability validation. |
| SMCJ14A-HM3_A/I | Same AEC-Q101/halogen-free status and VWM/VBR, but larger SMC (DO-214AB) package with 1500 W PPPM and higher IPPM (64.9 A). | Higher surge capacity suits primary-side AC/DC input protection or high-power motor drives where board space allows larger footprint. | Choose SMCJ14A-HM3_A/I when system-level surge tests exceed 1000 W or thermal dissipation demands lower RθJA than SMB allows. |
Compared with SMB10J14AHM3_A/I, SMBJ14A-E3/52 offers identical clamping performance without automotive qualification, while SMCJ14A-HM3_A/I trades compact SMB size for 50 % higher surge rating in a larger package - enabling tiered design choices based on reliability tier and surge severity.
Availability
SMB10J14AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC power inputs, and consumer adapter secondary-side protection requiring stable component supply, AEC-Q101 traceability, and halogen-free compliance.
Supply support for SMB10J14AHM3_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 high-reliability, high-power-density solutions.
The SMB10J series is engineered for automotive and industrial transient suppression, delivering high-peak-power TVS performance in compact surface-mount packages optimized for automated assembly and thermal robustness.
FAQ
What is the clamping voltage of SMB10J14AHM3_A/I at its rated peak pulse current?
The SMB10J14AHM3_A/I has a maximum clamping voltage (VC) of 23.2 V at 43.1 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during worst-case transients - critical for ensuring downstream ICs remain within their absolute maximum ratings. The SMB10J14AHM3_A/I achieves this with low incremental resistance and stable avalanche behavior.
Is SMB10J14AHM3_A/I qualified for automotive applications?
Yes, SMB10J14AHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HM3_A/I". This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD - validating its suitability for under-hood and cabin electronics such as ADAS cameras, body control modules, and infotainment power rails. The SMB10J14AHM3_A/I also meets MSL Level 1 for lead-free reflow compatibility.
What does the "HM3" suffix mean in SMB10J14AHM3_A/I?
The "HM3" suffix in SMB10J14AHM3_A/I indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, plus AEC-Q101 qualification. It distinguishes this variant from commercial-grade "E3" or "M3" versions and confirms compliance with automotive environmental and reliability standards. The "_A/I" denotes tape-and-reel packaging: "I" = 13-inch reel, 3200 units - essential for traceability and production-line compatibility. SMB10J14AHM3_A/I thus combines green materials with automotive-grade validation.
How does SMB10J14AHM3_A/I compare to bidirectional TVS diodes with the same VWM?
SMB10J14AHM3_A/I is unidirectional and optimized for DC rail protection where polarity is fixed - offering 1000 W PPPM versus 800 W for equivalent bidirectional SMB8J14CA. Its lower clamping voltage (23.2 V vs. 23.2 V for SMB8J14CA) and tighter VBR tolerance suit asymmetric voltage domains like 12 V automotive systems. Bidirectional variants are reserved for AC or floating-signal applications (e.g., RS-485), whereas SMB10J14AHM3_A/I delivers superior surge margin on grounded DC lines.
What PCB layout guidance applies to SMB10J14AHM3_A/I for optimal thermal performance?
For optimal thermal performance, SMB10J14AHM3_A/I must be mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay Document 88422 Figure 2. This pad area enables effective heat spreading and supports the device's 72 °C/W junction-to-ambient thermal resistance. Traces should be short and wide to minimize inductance during surge events, and ground planes must be solid beneath the pads. Failure to meet this layout reduces surge current capability and risks thermal runaway. SMB10J14AHM3_A/I relies on this copper mass for both electrical and thermal integrity.
SMB10J14AHM3_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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 43.1A
- Power - Peak Pulse:
- 1000W (1kW)
- 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)
SMB10J14AHM3_A/I FAQ
1.How can I place an order for SMB10J14AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14AHM3_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 SMB10J14AHM3_A/I reliable?
The price and inventory of SMB10J14AHM3_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 SMB10J14AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J14AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14AHM3_A/I?
SMB10J14AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14AHM3_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 SMB10J14AHM3_A/I?
For technical support, including SMB10J14AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14AHM3_A/I requirements.
6.How does Aetrix verify that SMB10J14AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J14AHM3_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 SMB10J14AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J14AHM3_A/I?
All SMB10J14AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14AHM3_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 SMB10J14AHM3_A/I part is unused and in its original packaging.
Return procedure for SMB10J14AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14AHM3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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