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Vishay General Semiconductor - Diodes Division SMBJ36CHE3/52
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- Part No.:
- SMBJ36CHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CHE3/52.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,754
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Product details
Overview
SMBJ36CHE3/52 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 mA, 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ36CHE3/52 datasheet, SMBJ36CHE3/52 pinout, SMBJ36CHE3/52 application, or SMBJ36CHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 rating, and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with sensitive downstream circuitry, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable avalanche behavior, low incremental surge resistance, and fast response time (<1 ns) to transient events such as inductive switching surges or ESD.
The SMBJ36CHE3/52 is rated for -55 °C to +150 °C operating junction temperature, supports 100 A non-repetitive forward surge current (IFSM), and meets UL 497B recognition (QVGQ2) for telecom and industrial protector classification. Its unidirectional configuration requires cathode-band orientation during PCB placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 40.0 V / 44.2 V at IT = 1 mA - defines guaranteed avalanche onset range under standardized test conditions |
| VC @ IPPM | 58.1 V at 10.3 A - clamped voltage seen by protected circuit during 10/1000 µs transient |
| PPPM | 600 W - peak transient energy absorption capability without failure |
| ID @ VWM | 1.0 µA - leakage current level ensuring minimal standby power loss and signal integrity |
| TJ max | +150 °C - maximum junction temperature enabling operation in high-ambient industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; determines unidirectional conduction direction |
| Cathode | Avalanche conduction terminal | Marked with band; connected to higher-potential side; conducts when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 600 W peak pulse power | Withstands 10/1000 µs transients up to 10.3 A without degradation under derated thermal conditions |
| Glass passivated junction | Ensures consistent avalanche characteristics, low leakage, and long-term stability across temperature and life cycles |
| MSL Level 1 (260 °C) | Compatible with standard SMT reflow profiles without moisture sensitivity concerns or baking requirements |
| UL 497B recognized (QVGQ2) | Approved for use in telecom and industrial surge protection systems requiring third-party safety certification |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O against inductive kickback from relay coils and solenoid loads. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or control line to clamp transients before they reach logic-level components. Use Value: Limits voltage excursion to ≤58.1 V during 10/1000 µs surges, preventing latch-up or oxide damage in 3.3 V/5 V interface ICs. | Use Scenario: Safeguarding LIN bus transceivers and sensor inputs (e.g., temperature, position) from load dump and jump-start events. IC Role / Device Role / Timing Role: Standoff-rated clamping device on power rail and signal lines, leveraging AEC-Q101 qualification for automotive deployment. Use Value: Maintains system uptime by absorbing 600 W transient energy while holding clamped voltage below 60 V - within safe margin for 12 V automotive electronics. |
| Telecom Power Supplies | Industrial PLC I/O Modules |
Use Scenario: Input-stage protection on AC/DC adapters and PoE injectors exposed to lightning-induced surges on Ethernet or mains lines. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC outputs, coordinated with upstream MOVs and gas discharge tubes. Use Value: Provides sub-1 ns response and low clamping ratio (VC/VBR ≈ 1.45), reducing stress on downstream DC-DC converters and PMICs. | Use Scenario: Signal line hardening for analog input channels (4–20 mA, 0–10 V) and digital fieldbus interfaces (RS-485, CAN) in factory automation. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor mounted directly at connector or terminal block. Use Value: Enables robust operation in noisy EMI environments with <1.0 µA leakage at 36 V, preserving measurement accuracy and noise immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHE3/52 | No AEC-Q101 qualification; same electrical specs and package | Not approved for automotive use; suitable for commercial/industrial only | Select when AEC-Q101 compliance is not required and cost optimization is prioritized |
| SAC36 | Same VWM (36 V) but lower PPPM (400 W); DO-214AC (SMA) package | Lower surge handling capacity; smaller footprint but higher RθJA (~150 °C/W) | Choose only if board space is constrained and transient energy is limited to ≤400 W |
Compared with SMBJ36AHE3/52 and SAC36, the SMBJ36CHE3/52 uniquely combines AEC-Q101 qualification, 600 W surge rating, and SMB package thermal performance - making it the preferred choice for automotive and high-reliability industrial designs where both certification and robust clamping are mandatory.
Availability
SMBJ36CHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supplies requiring stable component supply, traceable sourcing, and long-term lifecycle support.
Supply support for SMBJ36CHE3/52 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, efficiency, and application-specific validation.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where certified surge resilience and long-term parametric stability are critical.
FAQ
What is the clamping voltage of SMBJ36CHE3/52 at its rated peak pulse current?
The SMBJ36CHE3/52 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 represents the upper voltage limit imposed on protected circuitry during a defined transient event and is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards.
Is SMBJ36CHE3/52 suitable for automotive applications?
Yes, SMBJ36CHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification per the AEC-Q101 standard, making it appropriate for body control modules, infotainment power rails, and sensor interface protection in vehicles.
What does the "HE3" suffix indicate in SMBJ36CHE3/52?
The "HE3" suffix in SMBJ36CHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., "E3") and confirms compliance with automotive reliability requirements, including extended temperature operation (-55 °C to +150 °C) and enhanced process controls for zero-defect manufacturing.
How does SMBJ36CHE3/52 differ from bidirectional TVS diodes like SMBJ36CHE3/52CA?
SMBJ36CHE3/52 is unidirectional and conducts only in reverse bias above VBR, with polarity marked by a cathode band. In contrast, a bidirectional variant (e.g., SMBJ36CHE3/52CA) would suppress transients in both directions and lack polarity marking. The unidirectional configuration provides lower capacitance and tighter clamping for DC-biased lines, whereas bidirectional types suit AC or floating signal paths.
What is the thermal resistance of SMBJ36CHE3/52, and how does it affect PCB layout?
The SMBJ36CHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads per terminal. To maintain safe junction temperatures under repeated surge conditions, designers must ensure adequate copper area and avoid excessive trace length or isolation - especially in high-power industrial applications where ambient temperatures exceed 70 °C.
SMBJ36CHE3/52 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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)
SMBJ36CHE3/52 FAQ
1.How can I place an order for SMBJ36CHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CHE3/52 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 SMBJ36CHE3/52 reliable?
The price and inventory of SMBJ36CHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36CHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ36CHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CHE3/52?
SMBJ36CHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CHE3/52 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 SMBJ36CHE3/52?
For technical support, including SMBJ36CHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CHE3/52 requirements.
6.How does Aetrix verify that SMBJ36CHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ36CHE3/52 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 SMBJ36CHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ36CHE3/52?
All SMBJ36CHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CHE3/52, 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 SMBJ36CHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ36CHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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