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Vishay General Semiconductor - Diodes Division SMB10J14AHM3/H
- Part No.:
- SMB10J14AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14AHM3/H.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,478
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Product details
Overview
SMB10J14AHM3/H 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 standoff voltage (VWM), 15.6–17.2 V breakdown voltage (VBR at 1 mA), 23.2 V clamping voltage (VC) at 43.1 A peak pulse current (IPPM), and 1000 W peak pulse power (10/1000 µs waveform), with AEC-Q101 qualification for automotive use.
For engineers reviewing the SMB10J14AHM3/H datasheet, SMB10J14AHM3/H pinout, SMB10J14AHM3/H application, or SMB10J14AHM3/H equivalent, this device is selected for robust overvoltage protection in automotive ECUs, industrial sensor interfaces, and 12 V supply rail conditioning where low clamping voltage, fast response (<1 ns), and halogen-free RoHS compliance are critical design requirements.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector, triggering when reverse voltage exceeds its breakdown threshold to divert surge energy away from downstream ICs and MOSFETs. Its glass-passivated junction ensures stable leakage performance (≤1.0 µA at VWM) and long-term reliability under repeated transients.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it delivers thermal resistance of 72 °C/W (junction-to-ambient) and supports surge currents up to 100 A (8.3 ms half-sine, IFSM), with MSL Level 1 moisture sensitivity and 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 12 V systems. |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - Tight breakdown tolerance ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 23.2 V at 43.1 A - Clamping voltage limits protected circuit stress during 1000 W transient events (10/1000 µs). |
| IPPM | 43.1 A - Peak surge current capability for standardized lightning/surge immunity per IEC 61000-4-5. |
| PPPM | 1000 W - Sustains high-energy transients without failure; enables single-device protection for moderate-power nodes. |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and thermally constrained industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated leads. Cathode indicated by color band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes shunt path during overvoltage event. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12 V rail or signal); conducts when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & RoHS-compliant | HM3 suffix confirms full compliance with JEDEC J-STD-201 Class 2 whisker resistance and environmental regulations. |
| Low incremental surge resistance | Enables tighter clamping (23.2 V) and higher energy handling without voltage overshoot or thermal runaway. |
| Glass passivated junction | Ensures stable leakage (<1.0 µA), repeatable VBR, and resistance to humidity-induced degradation. |
| MSL Level 1 rating | Allows unlimited floor life and compatibility with standard 260 °C lead-free reflow profiles without baking. |
| Automotive qualification | AEC-Q101 certification covers HTOL, TC, AC/DC bias, and ESD (HBM ≥8 kV, CDM ≥1 kV) for safety-critical applications. |
Applications
| Automotive Body Control Module | Industrial CAN Transceiver Protection |
|---|---|
Use Scenario: Protecting 12 V power input and LIN bus lines in BCMs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt TVS diode placed upstream of LDOs and microcontrollers to clamp transients before they reach sensitive logic. Use Value: Withstands 1000 W surges and maintains VC ≤23.2 V, preventing latch-up or damage to 3.3 V/5 V domain ICs powered from the same rail. |
Use Scenario: Safeguarding differential CANH/CANL pins against ESD and inductive switching noise in factory automation nodes. IC Role / Device Role / Timing Role: Unidirectional TVS on each CAN line referenced to ground, suppressing common-mode surges while preserving signal integrity. Use Value: Low clamping voltage and <1 ns response ensure CAN bit timing remains unaffected during 8 kV contact ESD events per ISO 10605. |
| Smart Sensor Power Rail | Telecom DC Input Stage |
Use Scenario: Securing 5–24 V supply inputs of MEMS pressure/temperature sensors in harsh industrial environments. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main VDD line, coordinated with fuse or polyfuse for fault isolation. Use Value: 150 °C max junction temperature and AEC-Q101 qualification support extended operation in sealed enclosures with minimal airflow. |
Use Scenario: Front-end protection for 48 V telecom power supplies subjected to lightning-induced surges per IEC 61000-4-5 Level 4. IC Role / Device Role / Timing Role: First-stage TVS in cascade with MOVs and GDTs to absorb fast-rising energy before slower devices engage. Use Value: 1000 W PPPM and 43.1 A IPPM provide precise, repeatable clamping without degradation after multiple strikes. |
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/VC/PPPM, but commercial-grade (non-AEC-Q101), RoHS-compliant only (not halogen-free). | Lacks automotive qualification and whisker resistance; suitable for consumer/industrial designs without automotive validation requirements. | Select SMBJ14A-E3/52 when cost sensitivity outweighs AEC-Q101 and halogen-free mandates. |
| SAC14 | Lower PPPM (600 W), smaller SOD-123 package, higher VC (27 V), no AEC-Q101. | Used in space-constrained, lower-energy applications (e.g., USB ports); insufficient for 12 V automotive load dump. | Choose SAC14 only for compact, non-automotive signal-line protection where 1000 W rating is unnecessary. |
Compared with SMBJ14A-E3/52 and SAC14, SMB10J14AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and 1000 W surge capability in SMB package-making it the only option among the three qualified for under-hood automotive power rail protection.
Availability
SMB10J14AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power supply protection requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SMB10J14AHM3/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, power density, and automotive-grade validation.
The SMB10J series is engineered for high-power-density transient suppression in demanding environments, targeting automotive, industrial, and telecom applications where robustness, consistency, and regulatory compliance are mandatory.
FAQ
What is the maximum clamping voltage of SMB10J14AHM3/H under a 10/1000 µs surge?
The SMB10J14AHM3/H has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current of 43.1 A (10/1000 µs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees consistent overvoltage limiting for downstream components. The SMB10J14AHM3/H maintains this clamping performance across its full operating temperature range (−55 °C to +150 °C).
Is SMB10J14AHM3/H suitable for automotive applications?
Yes, SMB10J14AHM3/H is AEC-Q101 qualified and specifically designed for automotive use. Its HM3 suffix denotes halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance and MSL Level 1 reflow compatibility. The SMB10J14AHM3/H meets requirements for body control modules, infotainment power rails, and sensor interfaces exposed to load dump and ISO 7637-2 transients.
What does the "HM3" suffix mean in SMB10J14AHM3/H?
The "HM3" suffix in SMB10J14AHM3/H indicates halogen-free, RoHS-compliant construction with matte tin plating and JESD 201 Class 2 whisker resistance. It also signifies compliance with Vishay's automotive-grade material categorization (per doc. 99912) and qualifies the part for AEC-Q101 testing. The "H" denotes the automotive ordering code variant, and "/H" in the full suffix confirms tape-and-reel packaging per standard automotive logistics.
How does SMB10J14AHM3/H differ from SMBJ14A?
SMB10J14AHM3/H offers AEC-Q101 qualification, halogen-free materials, and enhanced reliability testing versus the commercial-grade SMBJ14A. While both share identical electrical specs (VWM = 14 V, VC = 23.2 V), the SMB10J14AHM3/H undergoes additional automotive stress tests-including temperature cycling, HTRB, and ESD-and carries JESD 201 Class 2 whisker resistance. The SMB10J14AHM3/H is intended for safety-critical automotive deployments where SMBJ14A is not approved.
What is the thermal resistance of SMB10J14AHM3/H?
The SMB10J14AHM3/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. Its junction-to-lead resistance (RθJL) is 20 °C/W. These values enable reliable thermal management in high-density layouts and support continuous operation up to +150 °C junction temperature, as verified in Vishay's thermal characterization curves.
SMB10J14AHM3/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:
- 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/H FAQ
1.How can I place an order for SMB10J14AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14AHM3/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/H reliable?
The price and inventory of SMB10J14AHM3/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/H is usually 5 days.
3.What payment methods are accepted for SMB10J14AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14AHM3/H?
SMB10J14AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14AHM3/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/H?
For technical support, including SMB10J14AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14AHM3/H requirements.
6.How does Aetrix verify that SMB10J14AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB10J14AHM3/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/H meets industry standards.
7.What is the process for return or replacement of SMB10J14AHM3/H?
All SMB10J14AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14AHM3/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/H part is unused and in its original packaging.
Return procedure for SMB10J14AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14AHM3/H Tags
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