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Vishay General Semiconductor - Diodes Division SMB10J30AHM3_B/H
- Part No.:
- SMB10J30AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J30AHM3_B/H.pdf
- Description:
- 1KW,30V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,289
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Product details
Overview
SMB10J30AHM3_B/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), 30 V stand-off voltage (VWM), and 48.4 V clamping voltage at 20.7 A peak pulse current. It is AEC-Q101 qualified and used to protect automotive sensor signal lines and MOSFET gate drivers from inductive switching transients.
For engineers reviewing the SMB10J30AHM3_B/H datasheet, SMB10J30AHM3_B/H pinout, SMB10J30AHM3_B/H application, or SMB10J30AHM3_B/H equivalent, key selection criteria include clamping performance under 10/1000 µs surge, AEC-Q101 qualification status, unidirectional polarity, thermal resistance (RθJL = 20 °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 ps) 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 asymmetric conduction-blocking reverse voltage up to 30 V while clamping forward surges to ≤48.4 V at rated IPPM.
The device operates across -55 °C to +150 °C junction temperature range and meets J-STD-020 MSL Level 1 (260 °C reflow peak). Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards, and the halogen-free, RoHS-compliant molding compound satisfies UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 33.3 V / 36.8 V at 1.0 mA - ensures reliable breakdown initiation above normal operating voltage |
| VC @ IPPM | 48.4 V at 20.7 A - clamping voltage limits stress on downstream ICs during 10/1000 µs surge |
| PPPM | 1000 W - peak pulse power handling capability defines transient energy absorption capacity |
| RθJL | 20 °C/W - low junction-to-lead thermal resistance supports sustained surge duty in compact layouts |
| TJ max | +150 °C - enables use in under-hood automotive environments without derating |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
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); recommended pad layout: 5.0 mm × 5.0 mm copper per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path during surge | Connected to protected line (e.g., sensor output); conducts when transient exceeds VBR |
| Cathode (banded end) | Reference/ground return path | Connected to system ground or low-impedance return; defines unidirectional polarity and clamping reference |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak without baking |
| Halogen-free & RoHS-compliant | Meets automotive environmental compliance requirements (e.g., ELV, IMDS) |
| Low RθJL (20 °C/W) | Enables higher surge repetition rates and improved thermal margin in dense PCB layouts |
| AEC-Q101 qualification | Validates robustness for automotive powertrain, body electronics, and ADAS sensor interfaces |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting analog output lines of ABS wheel speed sensors exposed to load-dump and inductive kickback in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤48.4 V, preventing ADC saturation and latch-up while maintaining 30 V DC operating margin. | Use Scenario: Safeguarding logic-level enable inputs of IGBT gate drivers in HVAC blower modules subjected to relay coil de-energization spikes. IC Role / Device Role / Timing Role: Standoff protector on driver enable line referenced to isolated control ground. Use Value: Clamps 1000 W surges within nanoseconds, preserving driver IC integrity without adding propagation delay. |
| Automotive Body Control Module (BCM) | Automotive Lighting Driver Circuits |
Use Scenario: Shielding LIN bus transceiver pins from ESD and battery reverse-connection events in door module ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS on LIN TX/RX lines with cathode tied to local ground. Use Value: Maintains <1 µA leakage at 30 V, ensuring bus idle-state integrity while suppressing ±30 kV contact ESD per ISO 10605. | Use Scenario: Protecting PWM dimming inputs of LED headlamp drivers against alternator ripple and load dump transients. IC Role / Device Role / Timing Role: Clamp on microcontroller PWM output line driving external LED controller IC. Use Value: Withstands 100 A IFSM surge (8.3 ms half-sine), preventing damage during cold-crank battery recovery events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMB10J30AHE3_B/H | Same electrical specs; RoHS-compliant but not halogen-free; commercial grade (non-AEC-Q101) | Lacks automotive qualification; unsuitable for safety-critical or under-hood use | Select only for cost-sensitive non-automotive industrial applications requiring identical clamping performance |
| SMBJ30A-M3/5B | Same SMB package and VWM/VC specs; 1000 W PPPM; halogen-free and RoHS-compliant; AEC-Q101 qualified | Identical function and qualification; differs only in tape/reel packaging (3200 pcs vs. 750 pcs) | Choose for high-volume production requiring larger reel quantities without electrical or reliability trade-offs |
Compared with SMB10J30AHM3_B/H, SMB10J30AHE3_B/H omits halogen-free and AEC-Q101 compliance-critical for automotive deployment-while SMBJ30A-M3/5B matches all key ratings and qualifications but scales packaging volume for manufacturing efficiency.
Availability
SMB10J30AHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial motor drive interface hardening, and LED lighting driver circuit safeguarding requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMB10J30AHM3_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 and automotive-grade validation.
The SMB10J series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power-density transient suppression in space-constrained automotive and industrial control systems where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMB10J30AHM3_B/H at its rated peak pulse current?
The SMB10J30AHM3_B/H has a maximum clamping voltage (VC) of 48.4 V at its rated peak pulse current (IPPM) of 20.7 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for protected circuits. The SMB10J30AHM3_B/H maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C).
Is SMB10J30AHM3_B/H suitable for automotive applications?
Yes, SMB10J30AHM3_B/H is AEC-Q101 qualified and explicitly designated for automotive use via its HM3 suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It is validated for temperature cycling, highly accelerated life testing, and ESD robustness per automotive standards. The SMB10J30AHM3_B/H is commonly deployed in body control modules, sensor interfaces, and lighting systems meeting OEM Tier-1 requirements.
What does the "HM3" suffix indicate in SMB10J30AHM3_B/H?
The "HM3" suffix in SMB10J30AHM3_B/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes the part from commercial-grade variants (e.g., E3/M3) and confirms compliance with automotive environmental and reliability standards. The "B/H" indicates 7″ tape-and-reel packaging (750 units per reel). The SMB10J30AHM3_B/H meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
How does SMB10J30AHM3_B/H differ from SMBJ30A?
SMB10J30AHM3_B/H and SMBJ30A share identical electrical specifications (VWM = 30 V, VC = 48.4 V, PPPM = 1000 W) and AEC-Q101 qualification, but differ in naming convention and packaging coding. SMBJ30A follows Vishay's legacy naming; SMB10J30AHM3_B/H reflects updated ordering syntax with explicit halogen-free and qualification markers. Both use SMB (DO-214AA) package and are functionally interchangeable in design. The SMB10J30AHM3_B/H is the current preferred ordering code.
What is the thermal resistance from junction to lead (RθJL) for SMB10J30AHM3_B/H?
The SMB10J30AHM3_B/H has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, measured under standard mounting conditions (0.2″ × 0.2″ copper pads). This low value enables efficient heat transfer to the PCB during repetitive surge events and supports higher power dissipation in thermally constrained layouts. RθJL directly impacts safe surge repetition rate and long-term reliability-critical for automotive applications with frequent load-switching transients. The SMB10J30AHM3_B/H leverages this spec to sustain operation at TJ = +150 °C.
SMB10J30AHM3_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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 20.7A
- 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)
SMB10J30AHM3_B/H FAQ
1.How can I place an order for SMB10J30AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J30AHM3_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 SMB10J30AHM3_B/H reliable?
The price and inventory of SMB10J30AHM3_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 SMB10J30AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMB10J30AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J30AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J30AHM3_B/H?
SMB10J30AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J30AHM3_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 SMB10J30AHM3_B/H?
For technical support, including SMB10J30AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J30AHM3_B/H requirements.
6.How does Aetrix verify that SMB10J30AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMB10J30AHM3_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 SMB10J30AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMB10J30AHM3_B/H?
All SMB10J30AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J30AHM3_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 SMB10J30AHM3_B/H part is unused and in its original packaging.
Return procedure for SMB10J30AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J30AHM3_B/H Tags
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