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Vishay General Semiconductor - Diodes Division SMBJ100AHM3_A/H
- Part No.:
- SMBJ100AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100AHM3_A/H.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,377
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Product details
Overview
SMBJ100AHM3_A/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 sensitive electronics. 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 - deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ100AHM3_A/H datasheet, SMBJ100AHM3_A/H pinout, SMBJ100AHM3_A/H application, or SMBJ100AHM3_A/H equivalent, this page delivers verified electrical specs, thermal behavior, AEC-Q101 qualification status, clamping performance under surge conditions, and real-world use cases in automotive-grade power supply protection and sensor interface hardening.
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 requires PCB copper pad design per Vishay's 0.2" × 0.2" (5.0 mm × 5.0 mm) recommendation for rated 600 W pulse handling.
The SMBJ100AHM3_A/H is halogen-free and RoHS-compliant (HM3 suffix), qualified to AEC-Q101 for automotive applications, and rated for -55 °C to +150 °C operating junction temperature. It meets UL 497B recognition (QVGQ2) and J-STD-020 MSL Level 1 reflow compatibility up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 111–123 V at 1 mA - guaranteed conduction onset range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 162 V at IPPM = 3.7 A - peak voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for standardized 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 compliance |
| IFSM (Surge Current) | 100 A - single half-sine 8.3 ms forward surge rating; validates robustness against inductive switch-off events |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive and high-ambient industrial environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; optimized for automated placement |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or lower-potential rail; completes clamping path during positive transients on cathode side |
| Cathode | Reverse-biased input / protected line connection | Connected to line being protected (e.g., 12 V rail or RS-485 bus); conducts when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against severe lightning-induced surges per IEC 61000-4-5, without derating at TA ≤ 25 °C |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics where reliability under thermal cycling and vibration is mandatory |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection fidelity for CMOS logic inputs |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C), eliminating bake-out steps in SMT production |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V battery rail in engine control units exposed to load dump (ISO 7637-2 Pulse 5a) and alternator switching spikes. IC Role / Device Role: Unidirectional TVS placed between VBAT and GND to clamp transients above 100 V while leaking <1 µA at nominal voltage. Use Value: Limits peak voltage to 162 V during 3.7 A surge, protecting 36 V-rated DC-DC controllers and CAN transceivers from destructive overstress. |
Use Scenario: Analog output line (4–20 mA) from pressure sensor in factory automation PLC module subjected to ESD and cable discharge events. IC Role / Device Role: TVS mounted across signal and return lines to shunt transient energy before it reaches op-amp input stage. Use Value: Sub-ns response and 162 V clamping prevent latch-up in precision instrumentation amplifiers operating near 24 V supply rails. |
| Telecom Line Interface Protection | Motor Drive Gate Driver Protection |
|
Use Scenario: RS-485 data line in outdoor base station equipment facing induced surges from nearby lightning strikes. IC Role / Device Role: Unidirectional SMBJ100AHM3_A/H used in conjunction with common-mode chokes to suppress differential-mode surges on A/B bus lines. Use Value: 600 W rating sustains multiple 10/1000 µs pulses without degradation, meeting GR-1089-CORE Level 3 telecom immunity requirements. |
Use Scenario: Isolated gate drive supply rail (15 V) feeding SiC MOSFET drivers in servo inverters, vulnerable to Miller-induced voltage spikes. IC Role / Device Role: TVS placed across gate driver VDD and GND to clamp ringing exceeding 100 V during high-dI/dt switching transitions. Use Value: 150 °C max junction temperature allows stable operation adjacent to heatsinks; 100 °C/W RθJA guides thermal pad sizing for sustained pulse duty. |
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_A/H | Same electrical specs, but RoHS-compliant (E3) without halogen-free certification; no AEC-Q101 qualification | Preferred for commercial-grade industrial controls where automotive qualification is not required | Select when halogen-free content is not mandated and cost optimization is prioritized over automotive compliance |
| SMAJ100A-HF | Lower 400 W PPPM rating, SMA package (smaller footprint, higher RθJA = 140 °C/W), same VWM/VBR/VC | Suitable for space-constrained consumer electronics with lower surge threat levels | Choose only if board area is critical and surge exposure is limited to IEC 61000-4-2 ESD or low-energy transients |
Compared with SMBJ100AHM3_A/H, the E3 variant trades halogen-free and AEC-Q101 assurance for lower cost, while the SMAJ100A-HF sacrifices pulse power headroom and thermal performance for miniaturization - making SMBJ100AHM3_A/H the optimal choice for automotive and high-reliability industrial surge protection where both robustness and compliance are non-negotiable.
Availability
SMBJ100AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom base stations, and motor drive systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ100AHM3_A/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure due to voltage surges must be eliminated through proven clamping consistency and thermal resilience.
FAQ
What is the clamping voltage of SMBJ100AHM3_A/H at its rated peak pulse current?
The SMBJ100AHM3_A/H has a maximum clamping voltage (VC) of 162 V at its specified peak pulse current (IPPM) of 3.7 A, measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in Vishay's datasheet Document Number 88392, page 2. The SMBJ100AHM3_A/H maintains this clamping performance across its qualified operating temperature range.
Is SMBJ100AHM3_A/H qualified for automotive applications?
Yes, SMBJ100AHM3_A/H is AEC-Q101 qualified, as indicated by the "HM3" suffix in its part number, which denotes halogen-free, RoHS-compliant, and automotive-grade construction. It is certified for use in engine control modules, body electronics, and ADAS subsystems where extended temperature operation (-55 °C to +150 °C) and reliability under thermal cycling are required. The SMBJ100AHM3_A/H meets all test conditions defined in the AEC-Q101 standard.
What does the "HM3" suffix mean in SMBJ100AHM3_A/H?
The "HM3" suffix in SMBJ100AHM3_A/H identifies the product as halogen-free, RoHS-compliant, and AEC-Q101 qualified - distinguishing it from commercial-grade variants like E3. It also specifies packaging format (7" tape-and-reel, code H) and revision level (A/H). This suffix ensures material compliance with automotive environmental standards and guarantees qualification testing per JESD22 and J-STD-020. The SMBJ100AHM3_A/H is built to Vishay's automotive-grade manufacturing controls.
Can SMBJ100AHM3_A/H be used in bidirectional protection circuits?
No, SMBJ100AHM3_A/H is a unidirectional TVS diode, intended for protection of DC lines with defined polarity - the cathode band marks the terminal connected to the line being protected. For bidirectional applications (e.g., AC lines or differential buses), Vishay specifies CA-suffix parts such as SMBJ100CA. Using SMBJ100AHM3_A/H in reverse-biased configurations risks permanent damage, as it lacks symmetrical breakdown characteristics. Always verify polarity alignment before deploying SMBJ100AHM3_A/H.
What is the thermal resistance of SMBJ100AHM3_A/H, and how does it affect layout?
The SMBJ100AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts PCB copper pour design: undersized pads cause excessive junction temperature rise during repetitive surges, degrading clamping consistency and lifetime. To sustain 600 W pulse capability, the SMBJ100AHM3_A/H must be laid out per the mounting pad dimensions shown in datasheet Figure 5.
SMBJ100AHM3_A/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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for SMBJ100AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100AHM3_A/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_A/H reliable?
The price and inventory of SMBJ100AHM3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ100AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100AHM3_A/H?
SMBJ100AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100AHM3_A/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_A/H?
For technical support, including SMBJ100AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100AHM3_A/H requirements.
6.How does Aetrix verify that SMBJ100AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ100AHM3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ100AHM3_A/H?
All SMBJ100AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100AHM3_A/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_A/H part is unused and in its original packaging.
Return procedure for SMBJ100AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100AHM3_A/H Tags
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