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Vishay General Semiconductor - Diodes Division SMB10J14AHM3_A/H
- Part No.:
- SMB10J14AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14AHM3_A/H.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,014
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Product details
Overview
SMB10J14AHM3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 1000 W peak pulse power (10/1000 μs), 14 V stand-off voltage (VWM), and 23.2 V clamping voltage (VC) at 43.1 A peak pulse current. It is AEC-Q101 qualified and used to protect automotive sensor signal lines and MOSFET gate drivers against inductive switching transients.
For engineers reviewing the SMB10J14AHM3_A/H datasheet, SMB10J14AHM3_A/H pinout, SMB10J14AHM3_A/H application, or SMB10J14AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs surges, AEC-Q101 qualification status, unidirectional polarity, thermal resistance (RθJA = 72 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD and lightning-induced transients per IEC 61000-4-2/4-5. Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining low leakage (<1.0 μA at 14 V).
The device operates across -55 °C to +150 °C junction temperature range and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its SMB package supports high-power density mounting with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 14 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V automotive systems. |
| VBR (Breakdown Voltage) | 15.6–17.2 V at 1 mA - Voltage at which device enters avalanche breakdown; ensures reliable triggering above system nominal voltage. |
| VC (Clamping Voltage) | 23.2 V at IPPM = 43.1 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; critical for IC-level overvoltage immunity. |
| PPPM (Peak Pulse Power) | 1000 W (10/1000 μs) - Energy-handling capability under standardized surge waveform; enables robust protection against ISO 7637-2 Pulse 1/2a/5a. |
| IFSM (Surge Current) | 100 A (8.3 ms half-sine) - Non-repetitive forward surge rating; supports protection against load dump events in automotive power nets. |
| TJ max. | +150 °C - Maximum junction temperature; allows operation in under-hood environments without derating at full power. |
| RθJA | 72 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs PCB thermal design for sustained surge duty cycles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H). Matte tin-plated leads, RoHS-compliant and halogen-free (HM3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection to protected line | Reverse-biased during normal operation; conducts avalanche current to ground when VLINE exceeds VBR. |
| Anode | Ground reference terminal | Connected to system ground plane; completes current path during clamping; requires low-inductance layout for effective surge shunting. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, ADAS, and body electronics. |
| Glass-passivated junction | Ensures stable breakdown characteristics and long-term parameter stability under thermal stress and humidity exposure. |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns; eliminates bake-out requirement prior to SMT placement. |
| Low clamping ratio (VC/VWM = 1.66) | Minimizes overvoltage stress on downstream ICs compared to alternatives with higher ratios (>1.8); improves system-level surge margin. |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive OEM environmental requirements and supports lead-free manufacturing compliance without compromising electrical performance. |
Applications
| Automotive Sensor Protection | Power Supply Input Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine compartments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach sensitive input stages. Use Value: Clamps 1000 W surges to ≤23.2 V while maintaining <1.0 μA leakage at 14 V, preserving signal integrity and preventing false triggers in 12 V systems. |
Use Scenario: Safeguarding DC-DC converter inputs in infotainment head units subjected to ISO 7637-2 Pulse 5a (load dump up to 60 V). IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V rail upstream of regulator ICs, absorbing energy before it propagates into power management circuitry. Use Value: Withstands 100 A 8.3 ms surge and clamps to 23.2 V at 43.1 A, limiting voltage overshoot below 28 V absolute maximum ratings of typical buck controllers. |
| MOSFET Gate Driver Protection | Industrial CAN Bus Node Protection |
|
Use Scenario: Shielding high-side N-channel MOSFET gate drivers in motor control modules from inductive kickback during PWM switching. IC Role / Device Role / Timing Role: Fast-response TVS placed between gate and source to clamp negative-going spikes that could exceed gate oxide breakdown limits. Use Value: Sub-nanosecond response and 23.2 V clamping prevent gate-source overvoltage beyond ±20 V rating of common logic-level MOSFETs. |
Use Scenario: Adding secondary surge immunity to CANH/CANL lines in industrial PLC I/O modules operating near AC motor drives. IC Role / Device Role / Timing Role: Unidirectional TVS on each CAN line referenced to ground, supplementing integrated transceiver ESD protection. Use Value: Handles repetitive 10/1000 μs surges up to 1000 W without degradation, extending field life in electrically noisy factory environments. |
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 SMB package, identical VWM (14 V) and VC (23.2 V), but commercial-grade (non-AEC-Q101) and RoHS-compliant only (not halogen-free). | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and halogen-free material is not specified. |
| SAC14 | Smaller SOD-123FL package, lower PPPM (600 W), same VWM (14 V), but higher VC (25.5 V at 26.5 A); no AEC-Q101 certification. | Lower power handling and less robust clamping limit use to low-energy signal lines, not power rails or motor drive nodes. | Choose only for space-constrained, non-automotive applications with modest surge exposure and no requirement for 1000 W rating. |
Compared with SMBJ14A-E3/52 and SAC14, SMB10J14AHM3_A/H delivers automotive-grade reliability, halogen-free compliance, and superior 1000 W surge capacity - making it the sole option qualified for under-hood deployment in safety-critical vehicle subsystems.
Availability
SMB10J14AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, power supply input hardening, MOSFET gate driver safeguarding, and industrial CAN bus node hardening requiring stable component supply across multi-year production programs.
Supply support for SMB10J14AHM3_A/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, TVS devices, and optoelectronics with emphasis on high-reliability, high-efficiency solutions.
The SMB10JxxA series is part of Vishay's TRANSZORB® TVS platform engineered specifically for automotive and industrial surge immunity, balancing high power density, fast response, and AEC-Q101 compliance in compact surface-mount packages.
FAQ
What is the clamping voltage of SMB10J14AHM3_A/H at its rated peak pulse current?
The SMB10J14AHM3_A/H has a maximum clamping voltage (VC) of 23.2 V at its peak pulse current (IPPM) of 43.1 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and verified per Vishay Document Number 88422. The SMB10J14AHM3_A/H maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C), ensuring consistent protection in automotive under-hood environments.
Is SMB10J14AHM3_A/H qualified for automotive applications?
Yes, SMB10J14AHM3_A/H is AEC-Q101 qualified, as confirmed in Vishay's official datasheet (Revision 09-Jan-2024, Document Number 88422). The HM3 suffix denotes halogen-free, RoHS-compliant construction with full automotive reliability testing including temperature cycling, humidity bias, and mechanical shock. This makes SMB10J14AHM3_A/H suitable for engine control units, ADAS sensors, and body electronics where automotive-grade qualification is mandatory.
What is the standoff voltage and breakdown voltage range for SMB10J14AHM3_A/H?
The SMB10J14AHM3_A/H has a standoff voltage (VWM) of 14 V and a breakdown voltage (VBR) range of 15.6 V to 17.2 V at 1 mA test current. These values are specified in the unidirectional electrical characteristics table of Vishay's datasheet and reflect guaranteed minimum and maximum limits across production lots. The SMB10J14AHM3_A/H uses these parameters to ensure reliable triggering above nominal 12 V system voltage while avoiding false clamping during normal operation.
Does SMB10J14AHM3_A/H support automated SMT placement?
Yes, SMB10J14AHM3_A/H is designed for automated surface-mount placement. Its SMB (DO-214AA) package features low-profile geometry, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and MSL Level 1 rating - eliminating pre-bake requirements. The SMB10J14AHM3_A/H is supplied in 7" and 13" tape-and-reel formats (codes /H and /I), fully compatible with standard pick-and-place equipment used in high-volume automotive electronics manufacturing.
What is the thermal resistance of SMB10J14AHM3_A/H, and how does it affect PCB layout?
The SMB10J14AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard FR-4 PCB construction and dictates minimum copper area needed to sustain repeated surge events without exceeding +150 °C junction temperature. For optimal thermal performance, the SMB10J14AHM3_A/H requires symmetric, thermally robust pad layouts with internal ground planes connected via multiple vias - especially in automotive power rail protection applications.
SMB10J14AHM3_A/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:
- 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/H FAQ
1.How can I place an order for SMB10J14AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14AHM3_A/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 SMB10J14AHM3_A/H reliable?
The price and inventory of SMB10J14AHM3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for SMB10J14AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14AHM3_A/H?
SMB10J14AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14AHM3_A/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 SMB10J14AHM3_A/H?
For technical support, including SMB10J14AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14AHM3_A/H requirements.
6.How does Aetrix verify that SMB10J14AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMB10J14AHM3_A/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 SMB10J14AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMB10J14AHM3_A/H?
All SMB10J14AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14AHM3_A/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 SMB10J14AHM3_A/H part is unused and in its original packaging.
Return procedure for SMB10J14AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14AHM3_A/H Tags
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