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Vishay General Semiconductor - Diodes Division SMBJ100HE3/52
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- Part No.:
- SMBJ100HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100HE3/52.pdf
- Description:
- TVS DIODE 100VWM 179VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,861
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Product details
Overview
SMBJ100HE3/52 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, automotive body control modules, and telecom power supplies.
For engineers reviewing the SMBJ100HE3/52 datasheet, SMBJ100HE3/52 pinout, SMBJ100HE3/52 application, or SMBJ100HE3/52 equivalent, key selection criteria include verified unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature limit (TJ = 150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 100 V), but triggers into low-impedance conduction when transient voltage exceeds VBR, limiting downstream voltage to ≤162 V. Its glass-passivated junction ensures stable avalanche characteristics and fast response (<1 ns).
Designed for PCB-level surge immunity per IEC 61000-4-5 (indirect lightning) and IEC 61000-4-2 (ESD), it supports repetitive transients at 0.01% duty cycle and withstands 100 A non-repetitive forward surge (8.3 ms half-sine). The SMB package enables automated placement and meets MSL Level 1 reflow profile (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA; defines safe DC rail operating margin. |
| VBR (Breakdown Voltage) | 111–123 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal system voltage. |
| VC (Clamping Voltage) | 162 V at 3.7 A (10/1000 µs) - Measured peak voltage across device during surge; determines protected circuit's maximum stress level. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability for standardized 10/1000 µs transients; validates protection against common load-switching spikes. |
| TJmax | 150 °C - Maximum junction temperature; sets thermal derating boundary for sustained power dissipation and ambient operation. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; used to calculate temperature rise under DC bias or repetitive surges. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for under-hood and BCM applications. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, cathode-banded unidirectional configuration. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during positive transients on cathode side. |
| Cathode | Protected line input terminal | Connected to line being protected (e.g., 12 V rail); band-marked end; conducts surge current to anode when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without degradation over rated lifetime. |
| AEC-Q101 qualification (HE3 suffix) | Confirms suitability for automotive electronics including engine control units and ADAS power domains with extended temperature and life-cycle validation. |
| UL 497B recognition (QVGQ2) | Enables use in telecom and industrial equipment requiring certified surge protection components per safety standards. |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking; compatible with standard lead-free reflow profiles up to 260 °C peak. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage drift over time and temperature - critical for long-life industrial deployments. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
|
Use Scenario: Protects 12 V supply inputs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple-induced spikes. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between fused 12 V rail and local regulator input. Use Value: Clamps transients to ≤162 V, preventing damage to downstream LDOs and microcontrollers while maintaining AEC-Q101 compliance. |
Use Scenario: Shields 24 V digital input optocoupler circuits from field-wiring induced surges (IEC 61000-4-4 EFT, IEC 61000-4-5 surge). IC Role / Device Role / Timing Role: Primary front-end clamp on isolated 24 V input channel, upstream of series resistor and opto-LED. Use Value: Limits voltage excursion to safe levels for optocoupler CTR stability and prevents false triggering during 4 kV EFT bursts. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Driver Board |
|
Use Scenario: Guards AC/DC adapter output against lightning-induced surges coupled via mains or Ethernet lines. IC Role / Device Role / Timing Role: Secondary-side TVS on +48 V DC bus, coordinated with primary MOV and Y-cap filtering. Use Value: Provides precise 162 V clamping to protect DC-DC controllers and PMICs without overdesigning upstream components. |
Use Scenario: Suppresses inductive kickback from brushed DC motor commutation in washing machine control boards. IC Role / Device Role / Timing Role: Flyback clamp across motor terminals, absorbing energy during MOSFET turn-off. Use Value: Dissipates 600 W peak pulses without failure, extending MOSFET lifetime and eliminating need for snubber RC networks. |
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-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VC/PPPM, identical SMB package and pinout. | Lacks automotive qualification; suitable for industrial/commercial power supplies where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and no temperature cycling or HTRB validation is needed. |
| SMCJ100AHE3/52 | Same electrical specs but in larger SMC (DO-214AB) package; higher RθJA (60 °C/W) and 1500 W PPPM. | Better thermal performance and surge margin; requires larger PCB footprint and different pad layout. | Choose when higher surge endurance (e.g., outdoor telecom) justifies added board space and assembly cost. |
Compared with SMBJ100A-E3/52, the SMBJ100HE3/52 adds AEC-Q101 qualification for automotive use without changing electrical behavior; versus SMCJ100AHE3/52, it trades surge headroom and thermal margin for compact SMB footprint and lower profile - ideal for space-constrained BCMs and consumer boards.
Availability
SMBJ100HE3/52 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input protection, telecom power supply front-ends, and consumer appliance motor driver boards requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ100HE3/52 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, precision, and application-specific validation.
The SMBJ series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for repeatable clamping, low leakage, and robust surge handling in harsh environments.
FAQ
What is the clamping voltage of SMBJ100HE3/52 and how is it measured?
The SMBJ100HE3/52 has a maximum clamping voltage (VC) of 162 V, measured at a peak pulse current (IPPM) of 3.7 A using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed per the Vishay datasheet (Document Number 88392, Rev. 09-Jan-2024) and reflects worst-case voltage seen by downstream circuitry during surge events - critical for validating IC survival margins in designs using SMBJ100HE3/52.
Is SMBJ100HE3/52 suitable for automotive applications?
Yes, SMBJ100HE3/52 is AEC-Q101 qualified, as confirmed by its "HE3" suffix and documentation in the Vishay SMBJ5.0A–SMBJ188A datasheet. It undergoes rigorous testing for temperature cycling, high-temperature reverse bias (HTRB), and ESD, making it appropriate for under-hood and body electronics such as BCMs and lighting control units where SMBJ100HE3/52 provides certified surge immunity.
What does the "HE3" suffix indicate in SMBJ100HE3/52?
The "HE3" suffix in SMBJ100HE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 solderability. It distinguishes this variant from commercial-grade "E3" parts and halogen-free "HM3" versions - confirming that SMBJ100HE3/52 meets automotive reliability standards while retaining the same electrical specs and SMB package as the base SMBJ100A series.
Can SMBJ100HE3/52 be used in bidirectional configurations?
No, SMBJ100HE3/52 is unidirectional only, as indicated by its part number ending in "A" (not "CA") and explicit marking of cathode band. Bidirectional operation requires CA-suffixed variants like SMBJ100CA; using SMBJ100HE3/52 in reverse-biased AC applications would result in forward conduction and failure - always verify polarity alignment when deploying SMBJ100HE3/52 in circuit design.
What is the thermal resistance of SMBJ100HE3/52 and how does it affect layout?
SMBJ100HE3/52 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. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces RθJA and improves surge survivability. Layout must follow Vishay's recommended mounting pad dimensions to ensure SMBJ100HE3/52 maintains specified power derating and clamping stability.
SMBJ100HE3/52 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)
SMBJ100HE3/52 FAQ
1.How can I place an order for SMBJ100HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100HE3/52 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 SMBJ100HE3/52 reliable?
The price and inventory of SMBJ100HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ100HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100HE3/52?
SMBJ100HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100HE3/52 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 SMBJ100HE3/52?
For technical support, including SMBJ100HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100HE3/52 requirements.
6.How does Aetrix verify that SMBJ100HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ100HE3/52 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 SMBJ100HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ100HE3/52?
All SMBJ100HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100HE3/52, 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 SMBJ100HE3/52 part is unused and in its original packaging.
Return procedure for SMBJ100HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100HE3/52 Tags
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