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Vishay General Semiconductor - Diodes Division SMBJ10AHM3_B/H
- Part No.:
- SMBJ10AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ10AHM3_B/H.pdf
- Description:
- 600W,10V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,580
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Product details
Overview
SMBJ10AHM3_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. It features a 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 10 mA, 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), deployed on power rails and I/O lines of industrial sensor interfaces.
For engineers reviewing the SMBJ10AHM3_B/H datasheet, SMBJ10AHM3_B/H pinout, SMBJ10AHM3_B/H application, or SMBJ10AHM3_B/H equivalent, this page delivers verified electrical specs, thermal derating behavior, AEC-Q101 qualification status, and real-world clamping performance data - all confirmed for the exact HM3 halogen-free, RoHS-compliant commercial-grade variant with B/H tape-and-reel packaging.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its 100 °C/W junction-to-ambient thermal resistance (RθJA) and 20 °C/W junction-to-lead (RθJL) define PCB pad layout requirements for sustained 5.0 W power dissipation at TA = 50 °C.
The SMBJ10AHM3_B/H complies with ANSI/IEEE C62.35 surge standards and meets J-STD-020 MSL Level 1 (260 °C peak reflow). It is halogen-free and RoHS-compliant per Vishay's HM3 suffix designation, with no lead finish restrictions beyond standard matte tin plating qualified per JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 11.1–12.3 V at IT = 10 mA - Confirmed minimum/maximum breakdown range defining turn-on consistency across production lots. |
| VC (Clamping Voltage) | 17.0 V at IPPM = 35.3 A (10/1000 µs) - Measured peak voltage during worst-case surge; determines protected circuit's overvoltage ceiling. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 µs waveform with 0.01 % duty cycle. |
| ID (Reverse Leakage) | 5.0 µA max at VWM = 10 V - Low leakage ensures minimal standby power loss and signal integrity on high-impedance nodes. |
| TJ max | +150 °C - Maximum junction temperature enabling operation in under-hood automotive or enclosed industrial enclosures. |
| IFSM (Surge Current) | 100 A (8.3 ms half-sine) - Unidirectional forward surge rating for accidental polarity reversal or inrush events. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by molded band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating on 0.2" × 0.2" copper pads. |
| 17.0 V clamping voltage at 35.3 A | Limits voltage excursion on 3.3 V or 5 V logic rails to safe levels during 10/1000 µs transients, preserving IC reliability. |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances. |
| AEC-Q101 qualified option available | HM3 variant supports automotive-grade supply chains; full qualification applies to HE3/HM3 ordering codes per datasheet note (1). |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles up to 260 °C peak, eliminating bake requirements pre-assembly. |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protecting 24 V CAN/LIN bus transceivers and analog sensor front-ends from load dump and inductive kickback in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp transients before they reach LDOs or signal conditioners. Use Value: 17.0 V clamping ensures downstream 12 V regulators remain within absolute maximum ratings during 100 V/500 ms load dump events. |
Use Scenario: Safeguarding 5 V microcontroller power domains in BCM modules exposed to ISO 7637-2 pulse 1/2a/5a surges. IC Role / Device Role / Timing Role: Primary clamping device on switched 5 V rail feeding MCU I/O and CAN PHY. Use Value: 600 W rating and 35.3 A IPPM withstand repeated 10/1000 µs pulses per ISO 7637-2 without degradation. |
| Telecom Power Supply Input Stage | Consumer Appliance Motor Drive Board |
Use Scenario: Secondary-side transient suppression on 48 V PoE-powered Ethernet switch DC-DC outputs. IC Role / Device Role / Timing Role: Standoff-clamp TVS parallel to bulk capacitor to absorb residual switching spikes and lightning-induced surges. Use Value: 10 V VWM provides 20 % margin above nominal 48 V output while maintaining fast response to <100 ns transients. |
Use Scenario: Protecting gate drivers and MCU GPIOs on BLDC motor control boards subjected to brush-commutator noise. IC Role / Device Role / Timing Role: Localized clamping at motor driver IC supply pins and Hall sensor inputs. Use Value: Sub-ns response time prevents latch-up in 3.3 V logic circuits exposed to repetitive 50–200 V spikes from motor commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs HM3); uses standard tin-lead–free finish without whisker-class 2 certification. | Approved for commercial industrial use but not automotive supply chains requiring halogen-free compliance. | Select when halogen content is unrestricted and cost optimization is prioritized over automotive qualification pathways. |
| SMBJ10AHM3_B/I | Identical electrical and material specs; differs only in packaging - 3200-unit 13" reel (B/I) vs 750-unit 7" reel (B/H). | No functional difference; choice depends solely on production volume and SMT line feeder compatibility. | Select B/I for high-volume automated assembly; B/H suits prototyping, low-run builds, or space-constrained feeders. |
Compared with SMBJ10A-E3/52, the SMBJ10AHM3_B/H adds halogen-free compliance and JESD 201 Class 2 whisker resistance - critical for automotive Tier 1 sourcing - while SMBJ10AHM3_B/I offers identical performance in higher-reel-volume packaging for scalable manufacturing.
Availability
SMBJ10AHM3_B/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, telecom power supplies, and consumer appliance motor drives requiring stable component supply with halogen-free, RoHS-compliant, and MSL Level 1 reflow assurance.
Supply support for SMBJ10AHM3_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, power efficiency, and automotive-grade qualification.
The SMBJ series targets board-level transient protection in harsh environments, engineered for high-energy surge handling, low clamping voltage, and seamless integration into automated SMT processes - especially where AEC-Q101 compliance and halogen-free materials are mandated.
FAQ
What is the clamping voltage of SMBJ10AHM3_B/H at its rated peak pulse current?
The SMBJ10AHM3_B/H has a maximum clamping voltage (VC) of 17.0 V when subjected to its rated peak pulse current (IPPM) of 35.3 A under the standard 10/1000 µs waveform. This value is measured and guaranteed per Vishay Document Number 88392, ensuring predictable overvoltage limiting for downstream 5 V or 12 V circuits. The SMBJ10AHM3_B/H maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ10AHM3_B/H qualified for automotive applications?
The SMBJ10AHM3_B/H itself is a commercial-grade, halogen-free, RoHS-compliant part (HM3 suffix), and while it shares the same die and electrical characteristics as AEC-Q101–qualified variants, the HM3_B/H ordering code is not explicitly certified to AEC-Q101. For automotive use, specify SMBJ10AHM3_X (e.g., SMBJ10AHM3_B/H with revision "X") or the HE3/HM3-X suffixes noted in the datasheet as AEC-Q101 qualified. The SMBJ10AHM3_B/H remains suitable for non-safety-critical automotive subsystems where full qualification is not mandated.
What does the "HM3" suffix indicate in SMBJ10AHM3_B/H?
The "HM3" suffix in SMBJ10AHM3_B/H denotes a halogen-free, RoHS-compliant construction meeting IPC-1752A material declarations and EU Directive 2015/863. It also signifies compliance with JESD 201 Class 2 whisker resistance testing and matte tin terminal plating qualified per J-STD-002. Unlike E3 variants, HM3 ensures zero brominated flame retardants and antimony trioxide, making SMBJ10AHM3_B/H appropriate for environmentally regulated industrial and consumer markets.
How does SMBJ10AHM3_B/H differ from bidirectional variants like SMBJ10CA?
The SMBJ10AHM3_B/H is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where reverse conduction must be blocked. In contrast, SMBJ10CA is bidirectional, symmetrical in both directions, and used for AC line or differential signal protection. Their VBR, VC, and PPPM values are identical, but SMBJ10AHM3_B/H cannot replace SMBJ10CA in AC-coupled applications without circuit redesign - the SMBJ10AHM3_B/H would conduct continuously on negative half-cycles.
What PCB pad layout is recommended for optimal thermal performance of SMBJ10AHM3_B/H?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal for SMBJ10AHM3_B/H to achieve its rated 600 W peak pulse power and 5.0 W steady-state dissipation. Thermal resistance is rated at RθJA = 100 °C/W under this layout. Reducing pad area increases junction temperature rise during surge events and may cause premature failure. The SMBJ10AHM3_B/H datasheet Figure 2 provides derating curves confirming 80 % power retention at TA = 70 °C with proper copper exposure.
SMBJ10AHM3_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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 35.3A
- 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)
SMBJ10AHM3_B/H FAQ
1.How can I place an order for SMBJ10AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ10AHM3_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 SMBJ10AHM3_B/H reliable?
The price and inventory of SMBJ10AHM3_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 SMBJ10AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ10AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ10AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ10AHM3_B/H?
SMBJ10AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ10AHM3_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 SMBJ10AHM3_B/H?
For technical support, including SMBJ10AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ10AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ10AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ10AHM3_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 SMBJ10AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ10AHM3_B/H?
All SMBJ10AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ10AHM3_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 SMBJ10AHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ10AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ10AHM3_B/H Tags
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