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Vishay General Semiconductor - Diodes Division SMBJ100AHE3_B/I
- Part No.:
- SMBJ100AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100AHE3_B/I.pdf
- Description:
- 600W,100V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBJ100AHE3_B/I 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 standoff voltage (VWM), 111–123 V breakdown range (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 in industrial motor drives to safeguard MOSFET gate drivers against inductive switching transients.
For engineers reviewing the SMBJ100AHE3_B/I datasheet, SMBJ100AHE3_B/I pinout, SMBJ100AHE3_B/I application, or SMBJ100AHE3_B/I equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, unidirectional polarity marking, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 µA leakage at 100 V), but triggers into low-impedance conduction when transient voltage exceeds VBR, diverting surge current away from downstream components. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns).
Designed for single-polarity DC systems, SMBJ100AHE3_B/I uses cathode-band polarity identification and supports repetitive surge duty cycles up to 0.01 %, with thermal derating above 25 °C per Figure 2 and IPPM validated on standard 5.0 mm × 5.0 mm copper pads per JEDEC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets upper limit for protected circuit's steady-state rail. |
| VBR (min/max) | 111 V / 123 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering above system nominal voltage with margin. |
| VC @ IPPM | 162 V at 3.7 A - Clamped voltage during 10/1000 µs surge; must remain below protected device's absolute maximum rating. |
| PPPM | 600 W - Peak pulse power handling capability; defines survivability against standardized lightning/surge waveforms. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; determines temperature rise under sustained power dissipation or repeated surges. |
| TJ max. | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suffix HE3 denotes qualification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads solderable per J-STD-002. Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for unidirectional clamping | Connected to protected line (e.g., +100 V rail); conducts surge current to ground when voltage exceeds VBR. |
| Anode (unbanded end) | Reference/return node | Typically tied to system ground or low-impedance return path; completes clamping loop during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without failure when mounted per recommended pad layout. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics where long-term reliability under thermal stress and vibration is mandatory. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving margin for sensitive gate drivers and ADC references. |
| MSL Level 1 (260 °C reflow) | Supports lead-free PCB assembly without popcorn cracking or delamination; no pre-baking required prior to reflow. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature, critical for precision clamping in industrial control feedback paths. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of IGBT gate driver supply rails against turn-off voltage spikes induced by high-di/dt in motor windings. IC Role / Device Role / Timing Role: Shunt clamping element placed between driver VCC and ground, triggered within nanoseconds to clamp transients exceeding 100 V. Use Value: Prevents gate oxide damage in isolated gate drivers by limiting clamped voltage to 162 V - 12 % below typical 180 V absolute max rating. |
Use Scenario: Safeguarding LIN bus transceiver power pins from load dump and jump-start transients in door module ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS connected across 12 V supply input, absorbing 600 W pulses while maintaining <1 µA leakage during sleep mode. Use Value: Enables compliance with ISO 7637-2 Pulse 1/2a/5a requirements without additional filtering, reducing BOM count. |
| Telecom Power Feeds | PLC Analog Input Protection |
|
Use Scenario: Overvoltage suppression on -48 V DC telecom rectifier outputs exposed to lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: High-voltage unidirectional TVS installed at power entry point, clamping negative-going transients to protect downstream DC/DC converters. Use Value: Withstands 328 A peak surge (for SMBJ188A variant) - scalable family allows direct upgrade path for higher threat levels. |
Use Scenario: Front-end protection of 4–20 mA current loop analog inputs in programmable logic controllers against field wiring faults and ESD. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA at 100 V) TVS placed across input terminals to shunt >1 kV ESD events before reaching precision op-amps. Use Value: Maintains signal integrity with <0.5 pF junction capacitance (typ.) - negligible effect on loop bandwidth up to 100 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100AHM3_B/I | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification; same SMB package and pinout. | No functional difference; selected when halogen-free material compliance is mandated by OEM environmental policy. | Direct drop-in replacement where halogen-free content is required; no design or layout changes needed. |
| SMCJ100AHE3_A/I | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; 1500 W PPPM, lower RθJA (50 °C/W), higher IPPM (6.9 A). | Used where higher surge energy absorption or improved thermal performance is required, e.g., in outdoor telecom cabinets. | Select when system-level surge testing exceeds 600 W; requires PCB footprint change due to larger SMC outline. |
Compared with SMBJ100AHM3_B/I, SMBJ100AHE3_B/I offers identical protection performance with standard RoHS compliance; versus SMCJ100AHE3_A/I, it trades lower surge capacity and higher thermal resistance for space-constrained layouts where SMB footprint is mandatory.
Availability
SMBJ100AHE3_B/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and PLC analog input protection requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for SMBJ100AHE3_B/I 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 cost-sensitive, high-volume board-level surge protection across automotive, industrial, and telecom markets, balancing compact SMB packaging with certified AEC-Q101 robustness and 600 W pulse capability.
FAQ
What is the clamping voltage of SMBJ100AHE3_B/I at its rated peak pulse current?
The SMBJ100AHE3_B/I 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 double-exponential surge waveform. This value is guaranteed across temperature and lifetime per Vishay's qualification testing, and is critical for ensuring protected ICs remain within their absolute maximum voltage ratings during transient events. The SMBJ100AHE3_B/I achieves this clamping performance while maintaining low leakage (<1 µA) at its 100 V standoff voltage.
Is SMBJ100AHE3_B/I suitable for automotive applications?
Yes, SMBJ100AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code, indicating full validation for automotive-grade reliability including temperature cycling, highly accelerated life testing (HALT), and ESD immunity. It is commonly used in body control modules, lighting drivers, and infotainment power supplies where sustained operation from -40 °C to +125 °C ambient and resistance to mechanical shock/vibration are required. The SMBJ100AHE3_B/I meets these demands without derating in standard mounting configurations.
How does the SMBJ100AHE3_B/I differ from bidirectional variants like SMBJ100CA?
The SMBJ100AHE3_B/I is unidirectional, meaning it conducts only in reverse bias above VBR and blocks forward current - ideal for DC rail protection with defined polarity. In contrast, SMBJ100CA is bidirectional, providing symmetrical clamping for AC or floating signal lines. The SMBJ100AHE3_B/I features a cathode band for polarity identification, while SMBJ100CA has no marking. Electrical differences include higher IPPM for the CA version at same VWM, but SMBJ100AHE3_B/I offers tighter leakage control in forward bias, making it preferable for DC-coupled applications.
What is the thermal resistance of SMBJ100AHE3_B/I, and how does it affect layout?
The SMBJ100AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts safe operating area during repetitive surges: for example, two consecutive 600 W pulses at 0.01 % duty cycle require adequate copper area and airflow to prevent junction temperature from exceeding +150 °C. Layout best practices include maximizing copper pour on both sides connected to each terminal and avoiding thermal isolation - the SMBJ100AHE3_B/I's RθJA assumes this baseline thermal environment.
Can SMBJ100AHE3_B/I be used in place of older SMBJ100A-E3 parts?
Yes, SMBJ100AHE3_B/I is a direct functional and mechanical replacement for SMBJ100A-E3, with identical electrical specifications, SMB (DO-214AA) package dimensions, and pinout. The "HE3" suffix adds AEC-Q101 qualification and RoHS compliance, while the "_B/I" denotes 13" tape-and-reel packaging (3200 units). No PCB redesign is needed - the SMBJ100AHE3_B/I maintains full backward compatibility while extending reliability assurance for automotive and industrial deployments where qualification traceability is mandatory.
SMBJ100AHE3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- 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)
SMBJ100AHE3_B/I FAQ
1.How can I place an order for SMBJ100AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100AHE3_B/I 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 SMBJ100AHE3_B/I reliable?
The price and inventory of SMBJ100AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ100AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100AHE3_B/I?
SMBJ100AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100AHE3_B/I 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 SMBJ100AHE3_B/I?
For technical support, including SMBJ100AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100AHE3_B/I requirements.
6.How does Aetrix verify that SMBJ100AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ100AHE3_B/I 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 SMBJ100AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ100AHE3_B/I?
All SMBJ100AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100AHE3_B/I, 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 SMBJ100AHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ100AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100AHE3_B/I Tags
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