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Vishay General Semiconductor - Diodes Division SMB10J9.0AHM3_A/I
- Part No.:
- SMB10J9.0AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J9.0AHM3_A/I.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J9.0AHM3_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 power and signal lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA test current, 15.4 V maximum clamping voltage (VC) at 64.9 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 rails.
For engineers reviewing the SMB10J9.0AHM3_A/I datasheet, SMB10J9.0AHM3_A/I pinout, SMB10J9.0AHM3_A/I application, or SMB10J9.0AHM3_A/I equivalent, key selection criteria include AEC-Q101 qualification, unidirectional polarity with cathode band marking, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a clamping device that diverts transient energy to ground when reverse voltage exceeds VBR, limiting downstream voltage to ≤15.4 V under 64.9 A surge. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
The SMB10J9.0AHM3_A/I is halogen-free and RoHS-compliant (HM3 suffix), qualified per AEC-Q101 for automotive use, and exhibits thermal resistance of 72 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead) - enabling reliable operation up to TJ = +150 °C in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC signal rail margin. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1.0 mA - precise breakdown threshold ensuring predictable turn-on during transients. |
| VC @ IPPM | 15.4 V at 64.9 A - clamped voltage seen by protected IC/MOSFET during worst-case 10/1000 μs surge. |
| PPPM | 1000 W - peak transient power handling capability with standard 10/1000 μs waveform; enables robust ESD/Lightning immunity. |
| ID @ VWM | <1.0 μA - ultra-low reverse leakage preserves signal integrity and minimizes standby power loss. |
| TJ max. | +150 °C - maximum junction temperature supporting under-hood automotive and industrial ambient conditions. |
| Package | SMB (DO-214AA) - surface-mount outline with 0.220" × 0.130" footprint; compatible with J-STD-002 solderability standards. |
Pinout & Package
SMB10J9.0AHM3_A/I uses the standard SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, cathode indicated by a color band on one end. Mounting requires minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection to protected circuit ground or return path | Completes conduction path during reverse-biased clamping; must be routed to low-impedance ground plane. |
| Cathode (banded end) | High-side connection to line under protection | Receives transient voltage; clamps to anode when VAK ≥ VBR - polarity-critical for unidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for ADAS sensor modules and body control units. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental compliance requirements without compromising surge performance or thermal stability. |
| Low-profile SMB package | 0.086" height enables dense layout in space-constrained ECUs and IoT edge nodes while maintaining 1000 W surge rating. |
| Fast response time & low clamping ratio | Sub-nanosecond turn-on and VC/VBR ≈ 1.54 ensure minimal overvoltage exposure to sensitive 3.3 V/5 V logic and analog front-ends. |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow profiles without preconditioning - reduces manufacturing complexity and cost. |
Applications
| Automotive Sensor Protection | Industrial Power Input Stage |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensors from load dump and ISO 7637-2 pulses in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, absorbing >100 A surges within nanoseconds. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers by limiting voltage to ≤15.4 V during 10/1000 μs transients. |
Use Scenario: Safeguarding AC/DC adapter input rectifiers and DC-DC controller ICs against lightning-induced surges on 24 V industrial power rails. IC Role / Device Role / Timing Role: Primary-line TVS connected across input terminals, shunting surge energy before it reaches bulk capacitors and switching FETs. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (1 kV line-earth) using single-device solution with 1000 W rating. |
| Consumer USB Power Delivery | Telecom Base Station Interface |
Use Scenario: Guarding USB-C port VBUS lines against ESD and hot-swap transients in portable docking stations and monitors. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of USB PD controller and load switch, conducting only during overvoltage events. Use Value: Maintains <1.0 μA leakage at 9.0 V to avoid battery drain while delivering sub-100 ns response to ±15 kV contact ESD per IEC 61000-4-2. |
Use Scenario: Shielding RS-485/RS-232 data lines in outdoor telecom cabinets exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Signal-line TVS mounted directly at connector entry point, referenced to local ground with short trace routing. Use Value: Clamps differential transients to <15.4 V while preserving signal integrity up to 10 Mbps due to low junction capacitance (~100 pF at 0 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0AHE3_A/I | Same VWM (9.0 V), VBR (10.0–11.1 V), and PPPM (1000 W); E3 suffix indicates RoHS-compliant commercial grade (non-AEC-Q101, non-halogen-free). | Lacks AEC-Q101 qualification and halogen-free certification; suitable for non-automotive industrial or consumer designs. | Select when automotive qualification is not required and cost optimization is prioritized over environmental compliance. |
| SMAJ9.0A-HM3 | Same electrical specs but in smaller SMA (DO-214AC) package; lower PPPM (400 W), higher thermal resistance (RθJA = 110 °C/W). | Lower power handling limits use to lower-energy transients (e.g., ESD-only); unsuitable for load dump or lightning-level surges. | Choose only for space-constrained, low-risk signal-line protection where 1000 W rating is unnecessary. |
Compared with SMB10J9.0AHM3_A/I, SMBJ9.0AHE3_A/I offers identical surge performance without automotive qualification, while SMAJ9.0A-HM3 trades power capacity and thermal performance for reduced footprint - making SMB10J9.0AHM3_A/I the optimal choice for AEC-Q101–mandated, high-energy protection in automotive and harsh industrial environments.
Availability
SMB10J9.0AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial power supplies, USB-C PD systems, and telecom interface protection requiring stable component supply across extended production lifecycles.
Supply support for SMB10J9.0AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMB10J series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-power-density transient suppression in automotive, industrial, and communications infrastructure where AEC-Q101 compliance and robust surge immunity are mandatory.
FAQ
What is the clamping voltage of SMB10J9.0AHM3_A/I at its rated peak pulse current?
The SMB10J9.0AHM3_A/I has a maximum clamping voltage (VC) of 15.4 V at 64.9 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected downstream circuitry will not experience more than 15.4 V during worst-case surge events - critical for safeguarding 5 V and 3.3 V logic devices. The SMB10J9.0AHM3_A/I achieves this with low incremental surge resistance and fast junction response.
Is SMB10J9.0AHM3_A/I suitable for automotive applications?
Yes, SMB10J9.0AHM3_A/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction - meeting stringent automotive reliability requirements for temperature cycling, humidity, and surge endurance. It is explicitly intended for use in automotive subsystems such as body electronics, ADAS sensor interfaces, and infotainment power rails. The SMB10J9.0AHM3_A/I also complies with MSL Level 1 for lead-free reflow, supporting modern automotive PCB assembly processes.
What does the "HM3" suffix mean in SMB10J9.0AHM3_A/I?
The "HM3" suffix in SMB10J9.0AHM3_A/I denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. Specifically, "H" indicates AEC-Q101 qualification, "M" signifies halogen-free molding compound, and "3" confirms RoHS compliance per EU Directive 2011/65/EU. This distinguishes SMB10J9.0AHM3_A/I from commercial-grade variants like E3 or M3, making it appropriate for regulated automotive and industrial deployments where material content and long-term reliability are audited.
How does SMB10J9.0AHM3_A/I differ from bidirectional TVS diodes like SMB8J9.0CA?
SMB10J9.0AHM3_A/I is unidirectional and optimized for DC-biased lines (e.g., power rails, single-ended signals), offering 1000 W peak pulse power and 100 A IFSM. In contrast, SMB8J9.0CA is bidirectional with symmetrical clamping, lower 800 W PPPM, and no forward surge rating - suited for AC or differential lines like RS-485. The SMB10J9.0AHM3_A/I's cathode band marking and asymmetric IV curve make it incompatible for AC applications, but superior for high-energy DC protection where polarity is fixed.
What PCB layout practices maximize SMB10J9.0AHM3_A/I performance?
To maximize SMB10J9.0AHM3_A/I performance, mount it with minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal as specified in the Vishay datasheet - this ensures full 1000 W power derating. Keep traces to the protected node short and wide, place the SMB10J9.0AHM3_A/I as close as possible to the connector or IC input, and route its cathode directly to a low-inductance ground plane. Avoid vias in the main current path and ensure thermal relief is minimized to maintain low RθJA and prevent localized overheating during repeated surges.
SMB10J9.0AHM3_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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 64.9A
- 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)
SMB10J9.0AHM3_A/I FAQ
1.How can I place an order for SMB10J9.0AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J9.0AHM3_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 SMB10J9.0AHM3_A/I reliable?
The price and inventory of SMB10J9.0AHM3_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 SMB10J9.0AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J9.0AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J9.0AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J9.0AHM3_A/I?
SMB10J9.0AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J9.0AHM3_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 SMB10J9.0AHM3_A/I?
For technical support, including SMB10J9.0AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J9.0AHM3_A/I requirements.
6.How does Aetrix verify that SMB10J9.0AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J9.0AHM3_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 SMB10J9.0AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J9.0AHM3_A/I?
All SMB10J9.0AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J9.0AHM3_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 SMB10J9.0AHM3_A/I part is unused and in its original packaging.
Return procedure for SMB10J9.0AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J9.0AHM3_A/I Tags
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