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Vishay General Semiconductor - Diodes Division SMB10J14AHM3/I
- Part No.:
- SMB10J14AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J14AHM3/I.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,498
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Product details
Overview
SMB10J14AHM3/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 power and signal lines. It features a 14 V stand-off 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, and 1000 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial power supply rails.
For engineers reviewing the SMB10J14AHM3/I datasheet, SMB10J14AHM3/I pinout, SMB10J14AHM3/I application, or SMB10J14AHM3/I equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity, low clamping ratio (VC/VBR ≈ 1.48), MSL Level 1 moisture sensitivity, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, responding within <1 ps to transients induced by inductive switching or ESD events. Its glass-passivated junction ensures stable VBR tolerance (±10%), low incremental surge resistance, and robust 150 °C maximum junction temperature handling under repetitive surge stress.
The device is optimized for surface-mount automated assembly on 5.0 mm × 5.0 mm copper pads per JEDEC standard layout. Its unidirectional configuration provides forward conduction capability (IFSM = 100 A, 8.3 ms half-sine) while maintaining reverse-biased clamping action during overvoltage events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin below breakdown. |
| VBR (min/max) | 15.6 V / 17.2 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering across process variation. |
| VC @ IPPM | 23.2 V at 43.1 A - Clamped voltage during 1000 W surge; limits downstream IC stress to safe levels. |
| PPPM | 1000 W (10/1000 µs) - Peak surge energy absorption capacity; supports automotive load-dump and ISO 7637-2 Pulse 5a requirements. |
| IFSM | 100 A (8.3 ms half-sine) - Forward surge current rating; enables use in DC power rail protection with high inrush immunity. |
| TJ max | 150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection in unidirectional clamp configuration | Connected to protected line; conducts surge current to ground when VIN exceeds VBR. |
| Anode | Low-side reference terminal | Typically tied to system ground or common return; completes shunt path during transient event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, ADAS sensors, and body electronics. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance; suitable for green manufacturing. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow soldering without moisture-induced popcorn failure. |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes voltage overshoot during clamping; improves protection margin for 12 V nominal systems. |
| Glass-passivated junction | Ensures stable leakage (<1 µA at VWM) and long-term parameter stability under thermal cycling. |
Applications
| Automotive Sensor Interface Protection | Industrial DC Power Rail Clamp |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and jump-start surges in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between signal line and chassis ground, triggered only during positive overvoltage events. Use Value: Limits transient voltage to ≤23.2 V, preserving signal integrity and preventing latch-up in 3.3 V/5 V interface ICs per ISO 16750-2. |
Use Scenario: Safeguarding 12 V input rails of PLC modules, motor drives, and programmable logic controllers against inductive kickback and lightning-induced surges. IC Role / Device Role / Timing Role: Primary front-end surge suppressor mounted directly at connector entry point, absorbing up to 1000 W pulses. Use Value: Maintains system uptime by preventing fuse blowing or MOSFET avalanche failure during 100 A surge events. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Guard |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters and USB-C PD chargers subjected to mains-borne transients. IC Role / Device Role / Timing Role: Fast-response clamping element placed after rectification but before primary controller IC. Use Value: Responds in sub-nanosecond time to suppress 1 kV/µs spikes, avoiding damage to PWM controllers and optocouplers. |
Use Scenario: Ethernet PHY port protection on telecom base station line cards exposed to lightning-induced surges on RJ45 interfaces. IC Role / Device Role / Timing Role: Unidirectional TVS integrated into common-mode choke output stage to clamp differential-mode transients. Use Value: Achieves <10 pF junction capacitance (typ.) to avoid signal integrity degradation at 100 MHz+ data rates. |
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), VC = 23.2 V, but rated at 600 W (not 1000 W); commercial-grade (non-AEC-Q101); E3 suffix = standard RoHS, not halogen-free. | Lacks automotive qualification and reduced surge capacity; suitable only for non-critical consumer or industrial applications. | Select when cost sensitivity outweighs AEC-Q101 requirement and peak surge energy remains below 600 W. |
| 1.5SMC14AHE3_A/H | Same VWM/VC, 1500 W rating, but in larger SMC (DO-214AB) package; AEC-Q101 qualified; HE3 suffix = RoHS + AEC-Q101, but not halogen-free. | Higher power handling but requires larger PCB footprint; no MSL Level 1 guarantee (MSL Level 1 not specified). | Choose when higher surge margin is needed and board space permits SMC package; verify reflow compatibility separately. |
Compared with SMBJ14A-E3/52, SMB10J14AHM3/I delivers 67% higher peak pulse power and automotive qualification; versus 1.5SMC14AHE3_A/H, it offers smaller footprint and guaranteed MSL Level 1, trading off absolute power headroom for space-constrained AEC-Q101 designs.
Availability
SMB10J14AHM3/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial power rail clamping, and telecom line card surge suppression requiring stable component supply across extended production lifecycles.
Supply support for SMB10J14AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® high-power TVS family, engineered specifically for automotive and industrial environments demanding AEC-Q101 compliance, high surge robustness, and compact surface-mount form factors.
FAQ
What is the clamping voltage of SMB10J14AHM3/I at its rated peak pulse current?
The SMB10J14AHM3/I has a maximum clamping voltage (VC) of 23.2 V when subjected to its rated peak pulse current of 43.1 A using the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures predictable overvoltage limiting for downstream circuitry. The SMB10J14AHM3/I maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMB10J14AHM3/I suitable for automotive applications?
Yes, SMB10J14AHM3/I is AEC-Q101 qualified and explicitly designated for automotive use via its HM3 suffix, indicating halogen-free, RoHS-compliant construction and validation across temperature cycling, HTRB, and ESD tests. It meets ISO 7637-2 Pulse 5a requirements for 12 V systems and is deployed in engine control units, ADAS camera modules, and body control modules. The SMB10J14AHM3/I is rated for continuous operation up to 150 °C junction temperature.
What does the "HM3/I" suffix mean in SMB10J14AHM3/I?
The "HM3" portion indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and AEC-Q101 qualification; "I" denotes packaging in 13-inch tape-and-reel format with 3200 units per reel. This distinguishes SMB10J14AHM3/I from variants like HM3_B/H (7-inch reel, 750 units) or non-HM3 versions lacking automotive qualification. The SMB10J14AHM3/I suffix confirms full compliance with automotive supply chain traceability and green manufacturing mandates.
How does SMB10J14AHM3/I compare to SMBJ14A in terms of surge capability?
SMB10J14AHM3/I delivers 1000 W peak pulse power (10/1000 µs), whereas SMBJ14A is rated at 600 W - a 67% higher energy absorption capacity. Both share identical VWM (14 V) and VC (23.2 V), but SMB10J14AHM3/I achieves this with lower incremental surge resistance due to optimized chip geometry. The SMB10J14AHM3/I also includes AEC-Q101 qualification and MSL Level 1 reflow compatibility, which SMBJ14A lacks.
What is the recommended PCB pad layout for SMB10J14AHM3/I?
Vishay specifies a minimum pad size of 0.086" × 0.060" (2.18 mm × 1.52 mm) per terminal, with 0.2" × 0.2" (5.0 mm × 5.0 mm) copper areas for thermal dissipation during surge events. The SMB10J14AHM3/I datasheet references JEDEC-standard mounting for DO-214AA packages and requires adherence to these dimensions to achieve rated 1000 W pulse power and thermal resistance (RθJA = 72 °C/W). Deviation reduces surge survivability and may cause solder joint fatigue.
SMB10J14AHM3/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:
- 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/I FAQ
1.How can I place an order for SMB10J14AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J14AHM3/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/I reliable?
The price and inventory of SMB10J14AHM3/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/I is usually 5 days.
3.What payment methods are accepted for SMB10J14AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J14AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J14AHM3/I?
SMB10J14AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J14AHM3/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/I?
For technical support, including SMB10J14AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J14AHM3/I requirements.
6.How does Aetrix verify that SMB10J14AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMB10J14AHM3/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/I meets industry standards.
7.What is the process for return or replacement of SMB10J14AHM3/I?
All SMB10J14AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J14AHM3/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/I part is unused and in its original packaging.
Return procedure for SMB10J14AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J14AHM3/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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