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Vishay General Semiconductor - Diodes Division SMBJ36AHE3/5B
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- Part No.:
- SMBJ36AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36AHE3/5B.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,827
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Product details
Overview
SMBJ36AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1.0 mA, 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ36AHE3/5B datasheet, SMBJ36AHE3/5B pinout, SMBJ36AHE3/5B application, or SMBJ36AHE3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification status, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector: when reverse voltage exceeds VWM = 36 V, it avalanches into low-impedance conduction to clamp transient energy. Its glass-passivated junction enables sub-nanosecond response time and stable leakage (<1.0 µA at VWM), while thermal resistance RθJA = 100 °C/W supports operation up to TJ = 150 °C.
The device is rated for 600 W peak pulse power (10/1000 µs), 100 A non-repetitive forward surge current (8.3 ms half-sine), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The HE3 suffix confirms RoHS-compliant construction and AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - Ensures consistent avalanche initiation across production lots and temperature range. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak transient power handling capability; validates robustness against lightning-induced or inductive-switching surges. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms); supports protection of high-current power rails and motor drivers. |
| TJ max. | +150 °C - Junction temperature limit enabling use in under-hood automotive or high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 0.220" x 0.155" footprint; compatible with JEDEC-standard reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to system ground or low-side reference; completes clamping loop during overvoltage events. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., 36 V rail); avalanche conduction initiates here when VWM is exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics where reliability under thermal cycling and vibration is critical. |
| 600 W peak pulse power (10/1000 µs) | Provides proven immunity against ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surge events in industrial and automotive systems. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage (<1.0 µA), and long-term parameter stability across humidity and temperature stress. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without moisture-related popcorning, eliminating pre-bake requirements in high-volume SMT lines. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V or 5 V logic interfaces downstream. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Suppresses switching spikes from relay coils and solenoid drivers in 24 V/36 V industrial PLC I/O modules. IC Role / Device Role / Timing Role: Shunt-clamp TVS placed across relay coil terminals or MOSFET drain-source to divert inductive kickback energy. Use Value: Limits voltage excursion to ≤58.1 V, preventing gate oxide rupture in 60 V-rated power MOSFETs and ensuring >100,000-cycle relay driver reliability. |
Use Scenario: Protects LIN bus transceivers and microcontroller GPIOs from load dump and jump-start transients in BCM subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and ground, leveraging 36 V VWM to tolerate normal bus swing while clamping >44 V faults. Use Value: Maintains signal integrity during ISO 16750-2 load dump tests (up to 60 V, 100 ms), with AEC-Q101 qualification confirming automotive lifecycle compliance. |
| Telecom DC Power Input Stage | Consumer Appliance Motor Driver |
|
Use Scenario: Guards 48 V telecom rectifier outputs against lightning-induced surges entering via Ethernet or PoE interfaces. IC Role / Device Role / Timing Role: Primary-stage TVS mounted at board edge, upstream of DC-DC converters and hot-swap controllers. Use Value: Withstands 600 W 10/1000 µs surges per IEC 61000-4-5 Level 4, limiting input rail overvoltage to 58.1 V and preserving downstream PMIC functionality. |
Use Scenario: Shields H-bridge gate drivers and current-sense amplifiers from back-EMF during brushed DC motor commutation in smart appliances. IC Role / Device Role / Timing Role: TVS placed across motor terminals and referenced to local ground plane to absorb bidirectional flyback energy. Use Value: Fast <1 ns response and low VC prevent latch-up in 5 V logic circuits and reduce EMI emissions by controlling dV/dt of transient edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHM3/5B | Halogen-free, RoHS-compliant, AEC-Q101 qualified - identical electrical specs but different material composition. | No functional difference; selected when halogen-free compliance is mandated by OEM environmental policy. | Direct drop-in replacement if halogen-free requirement applies; same SMB package, pinout, and thermal profile. |
| SMBJ36A-E3/5B | RoHS-compliant, commercial grade (non-AEC-Q101); otherwise matches VWM, VBR, VC, and PPPM. | Not qualified for automotive; suitable for industrial, telecom, and consumer applications without AEC validation. | Select when AEC-Q101 is not required; lower cost alternative with identical clamping performance and SMT compatibility. |
Compared with SMBJ36AHE3/5B, SMBJ36AHM3/5B adds halogen-free compliance without altering protection behavior, while SMBJ36A-E3/5B removes AEC-Q101 qualification to serve cost-sensitive non-automotive designs - all three share identical clamping voltage, surge rating, and SMB footprint.
Availability
SMBJ36AHE3/5B is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, telecom DC input stages, and consumer appliance motor drivers requiring stable component supply with AEC-Q101 assurance.
Supply support for SMBJ36AHE3/5B 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series delivers standardized, high-power TVS protection for harsh-environment applications - engineered for rapid transient response, repeatable clamping, and seamless integration into automotive, industrial, and telecom power architectures.
FAQ
What is the clamping voltage of SMBJ36AHE3/5B at its rated peak pulse current?
The SMBJ36AHE3/5B has a maximum clamping voltage (VC) of 58.1 V at 10.3 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on the protected circuit during surge events and is measured with the device mounted on 0.2" × 0.2" copper pads per the datasheet test condition. The SMBJ36AHE3/5B maintains this clamping performance across its full operating temperature range.
Is SMBJ36AHE3/5B suitable for automotive applications?
Yes, SMBJ36AHE3/5B is AEC-Q101 qualified, making it suitable for automotive applications including body control modules, infotainment power rails, and sensor interface protection. The HE3 suffix explicitly denotes AEC-Q101 qualification, RoHS compliance, and suitability for under-hood and cabin environments up to +150 °C junction temperature. The SMBJ36AHE3/5B has passed stress tests for temperature cycling, humidity, and mechanical shock per the AEC standard.
What does the "HE3" suffix mean in SMBJ36AHE3/5B?
The "HE3" suffix in SMBJ36AHE3/5B indicates RoHS-compliant construction with AEC-Q101 qualification. "H" denotes AEC-Q101 qualification, "E3" specifies RoHS compliance and commercial-grade reliability. This distinguishes it from E3-only (RoHS, non-AEC) and HM3 (halogen-free + AEC-Q101) variants. The SMBJ36AHE3/5B meets JESD 201 Class 2 whisker resistance and MSL Level 1 reflow requirements.
How does SMBJ36AHE3/5B differ from bidirectional TVS diodes like SMBJ36CA?
SMBJ36AHE3/5B is unidirectional and features a cathode band for polarity identification, while SMBJ36CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The SMBJ36AHE3/5B has a 36 V stand-off voltage only in reverse bias; forward conduction follows standard diode behavior. Bidirectional types are used on AC lines or differential buses, whereas SMBJ36AHE3/5B is intended for DC rail protection with defined ground reference.
What is the thermal resistance of SMBJ36AHE3/5B, and how does it affect layout design?
The SMBJ36AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended pad layout (0.2" × 0.2" copper pads per terminal). This value guides PCB copper area allocation: increasing pad size or adding thermal vias reduces effective RθJA, allowing higher average power dissipation. For continuous 5.0 W operation, ambient temperature must be limited to ≤100 °C to maintain TJ ≤ 150 °C. The SMBJ36AHE3/5B's RθJL = 20 °C/W further supports heat transfer to PCB traces.
SMBJ36AHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMBJ36AHE3/5B FAQ
1.How can I place an order for SMBJ36AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36AHE3/5B 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 SMBJ36AHE3/5B reliable?
The price and inventory of SMBJ36AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ36AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36AHE3/5B?
SMBJ36AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36AHE3/5B 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 SMBJ36AHE3/5B?
For technical support, including SMBJ36AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36AHE3/5B requirements.
6.How does Aetrix verify that SMBJ36AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ36AHE3/5B 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 SMBJ36AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ36AHE3/5B?
All SMBJ36AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36AHE3/5B, 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 SMBJ36AHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ36AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36AHE3/5B Tags
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