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Vishay General Semiconductor - Diodes Division SMBJ100HE3/5B
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- Part No.:
- SMBJ100HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100HE3/5B.pdf
- Description:
- TVS DIODE 100VWM 179VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,090
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Product details
Overview
SMBJ100HE3/5B 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 ECUs.
For engineers reviewing the SMBJ100HE3/5B datasheet, SMBJ100HE3/5B pinout, SMBJ100HE3/5B application, or SMBJ100HE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and RoHS-compliant packaging details required for ESD/surge protection design-in and BOM validation.
Technical Context
The SMBJ100HE3/5B operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (VBR min = 111 V), thereby clamping transient surges to ≤162 V at 3.7 A. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ps), critical for protecting MOSFET gates and microcontroller I/O against lightning-induced spikes or inductive switching transients.
Thermally, it uses a low-profile SMB package with RθJL = 20 °C/W (junction-to-lead) and is rated for 5.0 W continuous power dissipation at TA = 50 °C. The device meets MSL Level 1 per J-STD-020, supports lead-free reflow up to 260 °C peak, and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 12 V–48 V systems. |
| VBR (min/max) | 111 V / 123 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during surge events without premature triggering. |
| VC @ IPPM | 162 V at 3.7 A (10/1000 µs) - Clamped voltage seen by protected circuit; must be below IC absolute maximum ratings. |
| PPPM | 600 W - Peak transient energy handling capacity; sufficient for IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge testing. |
| ID @ VWM | ≤1.0 µA - Ultra-low reverse leakage preserves battery life and avoids false trips in high-impedance sensor interfaces. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures without derating. |
| RθJA | 100 °C/W - Thermal resistance dictates PCB copper pad sizing (0.2" × 0.2") needed to maintain junction temperature within limit at full power. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode indicated by band on body; 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 > VBR. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control modules and ADAS power rails. |
| 600 W peak pulse power | Handles repetitive 10/1000 µs surges at 0.01% duty cycle - supports long-term protection in industrial PLCs with frequent load switching. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly using 260 °C peak profile. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across –55 °C to +150 °C - critical for outdoor telecom base stations. |
| RoHS-compliant & halogen-free option | Base suffix HE3 denotes RoHS compliance and AEC-Q101 qualification; HM3 adds halogen-free molding compound for green manufacturing. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback sensing circuits from flyback voltage spikes generated by IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed between gate and source to clamp negative-going transients and prevent gate oxide rupture. Use Value: 162 V clamping voltage ensures gate driver ICs (e.g., IR2110, UCC27531) remain within ±20 V absolute max rating during 600 V bus switching. |
Use Scenario: Safeguarding 48 V DC input stage of PoE-powered switches and baseband units against lightning-induced surges on outdoor Ethernet lines. IC Role / Device Role / Timing Role: Primary DC rail protector upstream of DC/DC converters; absorbs common-mode surges coupled onto power feed. Use Value: 100 V VWM allows use on 48 V nominal systems with 20% tolerance while maintaining margin against 123 V VBR upper limit. |
| Automotive Engine Control Units | Consumer Appliance Power Boards |
|
Use Scenario: Shielding microcontroller supply pins and CAN transceiver I/O from load dump transients (ISO 7637-2 Pulse 5a, up to 60 V/100 ms). IC Role / Device Role / Timing Role: Secondary-level TVS on 5 V/3.3 V regulator outputs; activated after primary fuse and LC filter. Use Value: AEC-Q101 qualification guarantees performance stability across –40 °C to +125 °C ambient and 150 °C junction temperature. |
Use Scenario: Suppressing inductive kickback from relay coils and BLDC motor windings in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Parallel-mounted across coil terminals to divert stored energy away from MCU GPIO and driver ICs. Use Value: 600 W PPPM rating withstands repeated 100 A inrush surges without degradation, extending product lifetime beyond 10,000 cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A-E3/5B | No AEC-Q101 qualification; commercial-grade only; same VWM/VBR/VC/PPPM specs. | Limited to non-automotive industrial or consumer use where automotive reliability certification is not mandated. | Select when cost sensitivity outweighs automotive qualification requirements and thermal environment remains <125 °C. |
| SMCJ100AHE3/5B | Same VWM/VBR but larger SMC (DO-214AB) package; higher PPPM = 1500 W; RθJA = 40 °C/W. | Better suited for high-energy surge environments (e.g., AC mains input stages) requiring longer surge duration immunity. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 and PCB layout permits larger footprint. |
Compared with SMBJ100A-E3/5B, SMBJ100HE3/5B adds AEC-Q101 qualification for automotive deployment, while SMCJ100AHE3/5B trades compact SMB size for 2.5× higher surge energy handling - making SMBJ100HE3/5B optimal for space-constrained, automotive-grade 48 V rail protection.
Availability
SMBJ100HE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive engine control units, and consumer appliance power boards requiring stable component supply and AEC-Q101 compliance.
Supply support for SMBJ100HE3/5B 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was engineered for high-reliability transient suppression in space-constrained, high-surge environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 qualification and consistent clamping performance.
FAQ
What is the clamping voltage of SMBJ100HE3/5B at its rated peak pulse current?
The SMBJ100HE3/5B has a maximum clamping voltage (VC) of 162 V at its specified peak pulse current (IPPM) of 3.7 A, measured under the standard 10/1000 µs waveform. This value is critical for ensuring downstream ICs remain within their absolute maximum voltage ratings during surge events. The SMBJ100HE3/5B maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ100HE3/5B qualified for automotive applications?
Yes, SMBJ100HE3/5B is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, enabling use in engine control units, body electronics, and ADAS subsystems. The SMBJ100HE3/5B is explicitly designated for automotive-grade deployment unlike commercial variants such as SMBJ100A-E3/5B.
What is the reverse leakage current of SMBJ100HE3/5B at its stand-off voltage?
The SMBJ100HE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 100 V stand-off voltage (VWM), tested at 25 °C. This ultra-low leakage minimizes standby power loss and prevents false triggering in high-impedance circuits such as sensor bias networks or battery-monitoring inputs. The SMBJ100HE3/5B maintains leakage below 5 µA even at elevated temperatures up to +125 °C.
Does SMBJ100HE3/5B meet moisture sensitivity level requirements for lead-free reflow?
Yes, SMBJ100HE3/5B meets MSL Level 1 per J-STD-020, meaning it can be subjected to standard lead-free reflow profiles with a peak temperature of 260 °C without preconditioning or baking. This eliminates moisture-related popcorning risk and simplifies high-volume SMT assembly. The SMBJ100HE3/5B's DO-214AA package construction and molding compound are specifically validated for this rating.
How does the thermal resistance of SMBJ100HE3/5B affect PCB layout?
The SMBJ100HE3/5B 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. To avoid exceeding the +150 °C maximum junction temperature under 5.0 W continuous dissipation, designers must allocate adequate copper area and consider airflow or nearby heat sources. The SMBJ100HE3/5B's RθJL of 20 °C/W further supports efficient heat transfer to PCB planes via its leads.
SMBJ100HE3/5B 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:
- 179V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ100HE3/5B FAQ
1.How can I place an order for SMBJ100HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100HE3/5B 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 SMBJ100HE3/5B reliable?
The price and inventory of SMBJ100HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ100HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100HE3/5B?
SMBJ100HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100HE3/5B 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 SMBJ100HE3/5B?
For technical support, including SMBJ100HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100HE3/5B requirements.
6.How does Aetrix verify that SMBJ100HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ100HE3/5B 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 SMBJ100HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ100HE3/5B?
All SMBJ100HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100HE3/5B, 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 SMBJ100HE3/5B part is unused and in its original packaging.
Return procedure for SMBJ100HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100HE3/5B Tags
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