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Vishay General Semiconductor - Diodes Division SMBJ100AHM3_B/H
- Part No.:
- SMBJ100AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100AHM3_B/H.pdf
- Description:
- 600W,100V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,610
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Product details
Overview
SMBJ100AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. 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 (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, telecom power supplies, and automotive body control modules.
For engineers reviewing the SMBJ100AHM3_B/H datasheet, SMBJ100AHM3_B/H pinout, SMBJ100AHM3_B/H application, or SMBJ100AHM3_B/H equivalent, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, and precise package mechanical data - all critical for ESD/surge co-design, PCB layout validation, and automotive-grade reliability planning.
Technical Context
This TVS operates as a clamping device: under normal bias it presents high impedance (>1 µA leakage at 100 V), but triggers avalanche conduction when transient voltage exceeds VBR, limiting downstream voltage to ≤162 V at 3.7 A. Its glass-passivated junction ensures stable breakdown and low capacitance (<100 pF at 0 V), supporting fast transients up to 1 ns rise time.
Thermal design relies on RθJA = 100 °C/W (junction-to-ambient, on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W (junction-to-lead), enabling sustained 5.0 W power dissipation at TA = 50 °C. The HM3 suffix confirms halogen-free, RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 12 V–48 V systems. |
| VBR (min/max) | 111 V / 123 V at IT = 1 mA - guaranteed avalanche onset range; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 162 V at 3.7 A (10/1000 µs) - clamped voltage seen by protected IC; determines minimum withstand rating of downstream components. |
| PPPM | 600 W - peak surge energy handling capacity; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) compliance with proper layout. |
| ID @ VWM | 1.0 µA max - ultra-low reverse leakage at rated stand-off; avoids unnecessary power loss in battery-powered or high-impedance sensor nodes. |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments and sealed industrial enclosures. |
| Package | SMB (DO-214AA) - standardized 2-pin SMD outline (5.21 mm × 4.06 mm × 2.20 mm); compatible with automated pick-and-place and reflow profiles up to 260 °C peak. |
Pinout & Package
SMBJ100AHM3_B/H uses the standard SMB (DO-214AA) surface-mount package with cathode-indicating band on one end. Leads are matte tin-plated, solderable per J-STD-002 and JESD22-B102, and meet MSL Level 1 moisture sensitivity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or lowest potential node; forms return path during clamping conduction. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 100 V DC bus); carries full surge current into anode during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including BCM, infotainment power rails, and ADAS sensor interfaces - supports PPAP and long-term reliability requirements. |
| 600 W peak pulse power (10/1000 µs) | Handles repetitive surges up to 0.01% duty cycle without degradation - suitable for industrial PLCs exposed to inductive switching noise. |
| Halogen-free & RoHS-compliant (HM3) | Meets EU Directive 2011/65/EU and JEDEC J-STD-020; eliminates brominated flame retardants while maintaining UL 94 V-0 flammability rating. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients (e.g., EFT bursts), improving protection margin for sensitive gate drivers and ADC front-ends. |
| Fast response time (<1 ns) | Clamps before most semiconductor damage thresholds are exceeded - critical for safeguarding MOSFETs and microcontrollers against lightning-induced spikes. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of 100 V DC link in servo drive inverters against IGBT switching transients and load dump events. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed across DC bus terminals to limit voltage excursions to ≤162 V during 600 W surges. Use Value: Prevents catastrophic failure of 120 V-rated electrolytic capacitors and gate drivers by holding bus voltage within safe operating area during 10/1000 µs surges. |
Use Scenario: Input-stage surge suppression on -48 V telecom rectifier outputs exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between -48 V rail and chassis ground to clamp differential surges above 100 V. Use Value: Maintains uninterrupted operation during IEC 61000-4-5 Level 4 testing (4 kV, 2 Ω source) without latch-up or parametric shift in downstream DC/DC converters. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protection of LIN bus transceivers and power window motor drivers in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS installed at module input to absorb load dump pulses (ISO 7637-2 Pulse 5a). Use Value: Ensures functional safety compliance by limiting transient voltage to <162 V at 3.7 A, preventing latch-up in 5 V MCU I/O and CAN/LIN PHYs. |
Use Scenario: Overvoltage guard on 4–20 mA current loop inputs in process automation transmitters. IC Role / Device Role / Timing Role: High-VWM TVS placed across loop terminals to shunt induced surges from nearby AC wiring or relay switching. Use Value: Preserves measurement accuracy by limiting voltage excursion to ≤162 V, avoiding saturation or damage to precision op-amps and ADC references. |
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_B/H | Same VWM/VBR/VC ratings and SMB package, but RoHS-compliant without halogen-free certification (E3 vs HM3). | Approved for commercial/industrial use only; not AEC-Q101 qualified - unsuitable for automotive production. | Select SMBJ100AHE3_B/H only for cost-sensitive non-automotive designs where halogen content is unrestricted. |
| SMCJ100A-HM3 | Same electrical specs but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm); higher RθJA (80 °C/W) and 1500 W PPPM rating. | Supports higher surge energy; requires larger PCB footprint and different thermal pad layout - not drop-in compatible. | Choose SMCJ100A-HM3 when 600 W is insufficient and board space allows larger package; otherwise retain SMBJ100AHM3_B/H for space-constrained layouts. |
Compared with SMBJ100AHE3_B/H, SMBJ100AHM3_B/H adds halogen-free compliance and AEC-Q101 qualification without sacrificing electrical performance; versus SMCJ100A-HM3, it trades surge capacity for compact SMB footprint and lower thermal resistance to lead - making SMBJ100AHM3_B/H optimal for automotive and space-limited industrial modules.
Availability
SMBJ100AHM3_B/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ100AHM3_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-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for fast clamping, low leakage, and robust surge endurance in harsh environments.
FAQ
What is the maximum clamping voltage of SMBJ100AHM3_B/H at its rated peak pulse current?
The SMBJ100AHM3_B/H has a maximum clamping voltage (VC) of 162 V at its specified peak pulse current (IPPM) of 3.7 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is critical for ensuring downstream components remain within their absolute maximum ratings. The SMBJ100AHM3_B/H maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ100AHM3_B/H qualified for automotive applications?
Yes, SMBJ100AHM3_B/H is AEC-Q101 qualified, confirming its suitability for automotive electronic systems including body control modules, infotainment power supplies, and ADAS sensor interfaces. The HM3 suffix denotes halogen-free, RoHS-compliant construction validated to AEC-Q101 stress test conditions - including temperature cycling, humidity bias HAST, and accelerated life testing. This qualification makes SMBJ100AHM3_B/H appropriate for PPAP submission and production deployment in automotive OEM and Tier-1 supply chains.
What does the "HM3" suffix indicate in SMBJ100AHM3_B/H?
The "HM3" suffix in SMBJ100AHM3_B/H specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS-compliant only) and HE3 (RoHS + AEC-Q101, but not halogen-free). HM3 devices use molding compounds free of brominated and chlorinated flame retardants while meeting UL 94 V-0 flammability standards and JESD201 Class 2 whisker resistance. This makes SMBJ100AHM3_B/H compliant with stringent environmental and reliability requirements in automotive and industrial markets.
Can SMBJ100AHM3_B/H be used in bidirectional protection circuits?
No, SMBJ100AHM3_B/H is a unidirectional TVS diode, intended for DC rail or polarized signal line protection where the cathode connects to the higher-potential side and the anode to ground or low-side reference. For bidirectional applications - such as AC lines or differential data buses - Vishay offers CA-suffix variants like SMBJ100CA. Using SMBJ100AHM3_B/H in reverse-biased configurations risks permanent damage due to lack of symmetrical avalanche capability. Always verify polarity alignment during PCB layout for SMBJ100AHM3_B/H.
What is the thermal resistance and power dissipation capability of SMBJ100AHM3_B/H?
SMBJ100AHM3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, and junction-to-lead resistance (RθJL) of 20 °C/W. At ambient temperature TA = 50 °C, it supports continuous power dissipation (PD) of 5.0 W on an infinite heatsink. Derating curves in the datasheet show usable power drops linearly above 25 °C ambient - e.g., ~3.5 W at TA = 75 °C - ensuring reliable operation in enclosed industrial enclosures or under-hood automotive locations.
SMBJ100AHM3_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):
- 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_B/H FAQ
1.How can I place an order for SMBJ100AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100AHM3_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 SMBJ100AHM3_B/H reliable?
The price and inventory of SMBJ100AHM3_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 SMBJ100AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ100AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100AHM3_B/H?
SMBJ100AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100AHM3_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 SMBJ100AHM3_B/H?
For technical support, including SMBJ100AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ100AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ100AHM3_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 SMBJ100AHM3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ100AHM3_B/H?
All SMBJ100AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100AHM3_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 SMBJ100AHM3_B/H part is unused and in its original packaging.
Return procedure for SMBJ100AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100AHM3_B/H Tags
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