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Vishay General Semiconductor - Diodes Division SMBJ100AHM3/H
- Part No.:
- SMBJ100AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100AHM3/H.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,508
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Product details
Overview
SMBJ100AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 100 V stand-off voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 162 V maximum clamping voltage (VC) at 3.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMBJ100AHM3/H datasheet, SMBJ100AHM3/H pinout, SMBJ100AHM3/H application, or SMBJ100AHM3/H equivalent, this device is selected for robust overvoltage protection on DC power rails, I/O lines, and MOSFET gate drivers in industrial motor controls, telecom power supplies, and automotive ECUs where halogen-free, RoHS-compliant, and AEC-Q101-qualified components are required.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging a glass-passivated silicon junction for stable avalanche behavior under transient stress. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, EFT, and surge events per IEC 61000-4-2/4-4/4-5.
The SMBJ100AHM3/H is rated for 150 °C maximum junction temperature and exhibits a VBR temperature coefficient of +0.107 %/°C - critical for thermal stability in high-ambient environments. Its MSL Level 1 rating (per J-STD-020) and matte tin-plated leads ensure compatibility with standard reflow profiles and long-term solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V–48 V systems. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 162 V at 3.7 A - Clamping voltage limits downstream component stress during 600 W transient events. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform supports IEC 61000-4-5 Level 4 (4 kV) surge immunity. |
| IFSM | 100 A - Non-repetitive forward surge rating enables robust protection against 8.3 ms half-sine faults in power supply inputs. |
| TJ max. | +150 °C - High junction temperature rating allows deployment in engine bay or industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height for automated placement. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on terminal 3 (cathode). Molding compound meets UL 94 V-0; matte tin-plated leads comply with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode) | Anode connection | Connected to protected line or ground return path; forms current path during reverse-biased clamping. |
| Terminal 3 (Cathode) | Cathode connection (banded end) | Connected to higher-potential rail (e.g., VCC); defines unidirectional clamping direction from cathode to anode. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 surge immunity up to 4 kV in 2 Ω/12 Ω coupling networks. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including body control modules and infotainment power rails. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20 requirements for green manufacturing and end-of-life processing. |
| MSL Level 1 (260 °C peak) | Supports single-reflow assembly without moisture sensitivity concerns or baking requirements. |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes overvoltage overshoot during transients, reducing risk of latch-up or gate oxide damage in protected ICs. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of gate driver ICs and bootstrap circuits against inductive kickback from IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between high-side gate and source, limiting voltage spikes to <162 V during turn-off. Use Value: Prevents gate oxide rupture and false triggering in isolated gate drivers operating at 100 V bus levels. |
Use Scenario: Input-stage surge protection on 48 V DC-DC converter front-ends exposed to lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Primary transient suppressor on DC input rail, clamping 4 kV/2 Ω surges within 1 ns to safeguard upstream rectifiers and controllers. Use Value: Maintains system uptime by absorbing 600 W pulses without degradation, meeting GR-1089-CORE Level 3 requirements. |
| Automotive Body Control Modules | Consumer Appliance Control Boards |
|
Use Scenario: Reverse polarity and load dump protection on LIN bus power lines and microcontroller VDD rails in door module ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS connected from 12 V supply to ground, activated only during positive transients >100 V. Use Value: Survives ISO 7637-2 Pulse 5a (load dump up to 60 V) and Pulse 1/2a (inductive switch-off) without failure. |
Use Scenario: Overvoltage suppression on AC/DC adapter output rails feeding smart home hub logic boards. IC Role / Device Role / Timing Role: Secondary protection device downstream of primary MOVs, providing precise clamping at 100 V to shield 3.3 V/5 V regulators. Use Value: Eliminates need for oversized capacitors or additional series impedance by delivering sub-100 ns response and low leakage (<1 µA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100AHE3/H | Same electrical specs, but RoHS-compliant commercial grade (non-halogen-free, non-AEC-Q101 qualified). | Limited to non-automotive industrial or consumer use where halogen-free or automotive qualification is not mandated. | Select when cost sensitivity outweighs halogen-free or AEC-Q101 requirements. |
| SMBJ100CAHM3/H | Bidirectional variant with same VWM (100 V), but symmetric clamping in both polarities; VC = 162 V in either direction. | Required for AC-coupled signal lines or bidirectional data buses (e.g., RS-485) where negative transients must also be suppressed. | Choose only if circuit experiences reversible polarity transients; otherwise unidirectional SMBJ100AHM3/H offers lower leakage and tighter VBR tolerance. |
Compared with SMBJ100AHE3/H, the SMBJ100AHM3/H adds halogen-free construction and AEC-Q101 qualification without sacrificing clamping performance; versus SMBJ100CAHM3/H, it provides superior unidirectional leakage control and optimized response for DC power rail protection.
Availability
SMBJ100AHM3/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMBJ100AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness, consistency, and regulatory compliance are mandatory.
FAQ
What is the clamping voltage of SMBJ100AHM3/H at its rated peak pulse current?
The SMBJ100AHM3/H has a maximum clamping voltage (VC) of 162 V at its specified peak pulse current (IPPM) of 3.7 A, measured using a 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is confirmed in the Vishay datasheet Document Number 88392, page 2. The SMBJ100AHM3/H maintains this clamping performance across its full operating temperature range.
Is SMBJ100AHM3/H suitable for automotive applications?
Yes, SMBJ100AHM3/H is AEC-Q101 qualified and explicitly designated for automotive use via the HM3 suffix, indicating halogen-free, RoHS-compliant, and stress-tested construction. It meets requirements for under-hood and cabin modules including body control units and lighting drivers. The SMBJ100AHM3/H is validated for operating junction temperatures up to +150 °C and withstands repetitive surge events per ISO 7637-2.
How does the HM3 suffix differ from the HE3 suffix in Vishay's SMBJ series?
The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction, whereas HE3 indicates RoHS-compliance and AEC-Q101 qualification but without halogen-free material certification. Both meet automotive reliability standards, but SMBJ100AHM3/H satisfies stricter environmental mandates such as JEDEC J-STD-20 and EU Directive 2015/863. The SMBJ100AHM3/H is preferred for Tier 1 automotive supply chains requiring full halogen-free documentation.
What is the maximum reverse leakage current of SMBJ100AHM3/H at its stand-off voltage?
The SMBJ100AHM3/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated stand-off voltage (VWM) of 100 V and ambient temperature of 25 °C. This low leakage ensures minimal power loss in always-on systems and prevents unintended biasing of downstream circuitry. The value is specified in the Electrical Characteristics table of the Vishay SMBJ5.0A–SMBJ188A datasheet (Document Number 88392, page 2).
Can SMBJ100AHM3/H be used in bidirectional signal line protection?
No - SMBJ100AHM3/H is a unidirectional TVS diode, identifiable by its cathode band marking and asymmetric I-V characteristics. For bidirectional protection (e.g., RS-485, CAN, or AC signal lines), the bidirectional variant SMBJ100CAHM3/H must be used. Using SMBJ100AHM3/H on bidirectional paths risks failure during negative transients, as it conducts only in reverse bias. Always verify polarity alignment before placing SMBJ100AHM3/H in circuit.
SMBJ100AHM3/H 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 3.7A
- 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)
SMBJ100AHM3/H FAQ
1.How can I place an order for SMBJ100AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100AHM3/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 SMBJ100AHM3/H reliable?
The price and inventory of SMBJ100AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100AHM3/H is usually 5 days.
3.What payment methods are accepted for SMBJ100AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100AHM3/H?
SMBJ100AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100AHM3/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 SMBJ100AHM3/H?
For technical support, including SMBJ100AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100AHM3/H requirements.
6.How does Aetrix verify that SMBJ100AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ100AHM3/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 SMBJ100AHM3/H meets industry standards.
7.What is the process for return or replacement of SMBJ100AHM3/H?
All SMBJ100AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100AHM3/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 SMBJ100AHM3/H part is unused and in its original packaging.
Return procedure for SMBJ100AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100AHM3/H Tags
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