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Vishay General Semiconductor - Diodes Division SMBJ9.0AHM3_B/H
- Part No.:
- SMBJ9.0AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ9.0AHM3_B/H.pdf
- Description:
- 600W,9.0V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,405
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Product details
Overview
SMBJ9.0AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events on power rails and signal lines. It features 600 W peak pulse power (10/1000 µs), 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current, and operates across -55 °C to +150 °C junction temperature range - used in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the SMBJ9.0AHM3_B/H datasheet, SMBJ9.0AHM3_B/H pinout, SMBJ9.0AHM3_B/H application, or SMBJ9.0AHM3_B/H equivalent, key selection criteria include verified clamping performance at rated IPPM, unidirectional polarity with cathode band marking, halogen-free RoHS-compliant construction (HM3 suffix), and AEC-Q101 qualification status per ordering code convention.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ps typical) and low incremental surge resistance. Its breakdown voltage (VBR) is specified at 10.0–11.1 V with 1.0 mA test current, ensuring reliable turn-on before downstream IC damage thresholds.
The device meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), supports automated SMT placement, and delivers stable clamping under repetitive 0.01% duty cycle surges - validated using standardized 10/1000 µs waveform testing per ANSI/IEEE C62.35.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.0 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 10.0–11.1 V at 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 15.4 V at 39.0 A IPPM - Measured peak voltage during 600 W transient; defines worst-case stress on protected circuitry. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs) - Standardized surge energy handling capability; validates robustness against lightning and inductive kick. |
| IPPM (Peak Pulse Current) | 39.0 A - Maximum non-repetitive surge current supported; determines minimum trace width and PCB copper pad sizing. |
| TJ max. | +150 °C - Maximum junction temperature rating; enables operation in under-hood automotive and high-ambient industrial environments. |
| Leakage (ID) | 10 µA max. at VWM - Low reverse leakage preserves battery life and avoids false triggering in low-power sensor nodes. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes clamping path during transient events. |
| Cathode | High-side connection point | Connected to protected line (e.g., 9 V rail); marked by visible band; reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validated surge immunity for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 compliance in automotive ECUs. |
| AEC-Q101 qualified (HM3 suffix) | Qualified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20E; eliminates brominated flame retardants in molding compound. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard lead-free reflow profiles up to 260 °C peak. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during fast transients; protects 12 V logic interfaces and CAN transceivers. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of BCM microcontroller from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp positive-going transients. Use Value: Limits voltage to ≤15.4 V during 39 A surge, preventing brownout reset or latch-up in MCU power domain. |
Use Scenario: Shields 24 V digital input channel from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS on input front-end, upstream of optocoupler or Schmitt trigger. Use Value: Clamps transients within 1 ps, preserving signal integrity while enabling >100 kV/µs dv/dt immunity per IEC 61000-4-4. |
| Consumer Appliance Motor Driver Board | Telecom Power Supply Front-End |
Use Scenario: Suppresses inductive kickback from brushed DC motor commutation on 9 V control rail. IC Role / Device Role / Timing Role: Fast-response TVS parallel to motor driver IC supply pins. Use Value: Absorbs 600 W pulses without degradation, extending lifetime of gate drivers and logic-level MOSFETs. |
Use Scenario: Guards AC/DC adapter output against lightning-induced surges entering telecom base station power bus. IC Role / Device Role / Timing Role: Primary-stage TVS on secondary-side 9 V output, coordinated with fuse and MOV. Use Value: Provides precise 9.0 V standoff with 15.4 V clamping, avoiding false trips while meeting GR-1089-CORE Level 3 requirements. |
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_B/H | Same electrical specs, but RoHS-compliant commercial grade (E3) instead of halogen-free (HM3); no AEC-Q101 qualification. | Approved for industrial/commercial use only; not certified for automotive under-hood deployment. | Select when halogen-free requirement is waived and automotive qualification is unnecessary. |
| SMAJ9.0A-HF | Lower 400 W PPPM, SMA package (smaller footprint), higher RθJA (140 °C/W), same VWM/VC ratings. | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-current inductive loads. | Choose only for space-constrained consumer designs where 600 W surge headroom is not required. |
Compared with SMBJ9.0AHM3_B/H, the E3 variant trades halogen-free construction and AEC-Q101 for cost reduction, while the SMAJ9.0A-HF sacrifices surge robustness and thermal performance for smaller size - making SMBJ9.0AHM3_B/H the optimal choice for automotive and high-reliability industrial applications demanding full 600 W clamping margin.
Availability
SMBJ9.0AHM3_B/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, consumer appliance motor control, and telecom power supply protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ9.0AHM3_B/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, efficiency, and application-specific optimization.
The SMBJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom systems requiring AEC-Q101 qualification, halogen-free materials, and repeatable clamping performance.
FAQ
What is the clamping voltage of SMBJ9.0AHM3_B/H at its rated peak pulse current?
The SMBJ9.0AHM3_B/H has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current of 39.0 A using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring compatibility with 12 V logic interfaces and automotive microcontrollers.
Does SMBJ9.0AHM3_B/H meet AEC-Q101 qualification requirements?
Yes, SMBJ9.0AHM3_B/H is AEC-Q101 qualified, as confirmed by the HM3 suffix in its ordering code and documentation in Vishay's datasheet revision 09-Jan-2024. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, validating its suitability for automotive under-hood and chassis applications where reliability under thermal and electrical stress is mandatory.
What does the "HM3" suffix indicate in SMBJ9.0AHM3_B/H?
The "HM3" suffix in SMBJ9.0AHM3_B/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS-compliant only) and HE3 (RoHS + AEC-Q101, non-halogen-free) versions. The HM3 designation ensures compliance with JEDEC J-STD-20E for moisture sensitivity (MSL Level 1) and JESD 201 Class 2 whisker resistance, supporting lead-free reflow assembly without pre-baking.
How is polarity identified on SMBJ9.0AHM3_B/H?
SMBJ9.0AHM3_B/H is a unidirectional TVS diode with polarity marked by a visible cathode band on the SMB (DO-214AA) package body. During circuit layout, the banded end must be connected to the line being protected (e.g., 9 V rail), while the anode connects to ground - ensuring correct reverse-bias operation under normal conditions and forward conduction during positive transients.
What is the maximum operating junction temperature for SMBJ9.0AHM3_B/H?
The SMBJ9.0AHM3_B/H has a maximum operating junction temperature (TJ max.) of +150 °C, as specified in Vishay's datasheet Document Number 88392. This rating enables reliable operation in high-ambient environments such as engine compartments, industrial motor drives, and enclosed telecom equipment - provided PCB thermal design maintains junction-to-ambient resistance within limits defined by its RθJA of 100 °C/W.
SMBJ9.0AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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):
- 39A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ9.0AHM3_B/H FAQ
1.How can I place an order for SMBJ9.0AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ9.0AHM3_B/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 SMBJ9.0AHM3_B/H reliable?
The price and inventory of SMBJ9.0AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ9.0AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ9.0AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ9.0AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ9.0AHM3_B/H?
SMBJ9.0AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ9.0AHM3_B/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 SMBJ9.0AHM3_B/H?
For technical support, including SMBJ9.0AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ9.0AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ9.0AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ9.0AHM3_B/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 SMBJ9.0AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ9.0AHM3_B/H?
All SMBJ9.0AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ9.0AHM3_B/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 SMBJ9.0AHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ9.0AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ9.0AHM3_B/H Tags
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