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Vishay General Semiconductor - Diodes Division SMBJ36CHE3/5B
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- Part No.:
- SMBJ36CHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CHE3/5B.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,690
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Product details
Overview
SMBJ36CHE3/5B 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 mA, 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), commonly used to protect MOSFETs and sensor interfaces in industrial motor drives.
For engineers reviewing the SMBJ36CHE3/5B datasheet, SMBJ36CHE3/5B pinout, SMBJ36CHE3/5B application, or SMBJ36CHE3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compliance with UL 497B for surge protection systems.
Technical Context
This TVS diode operates as a voltage-clamping device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the low incremental surge resistance minimizes voltage overshoot during transient events.
The SMBJ36CHE3/5B is rated for 150 °C maximum junction temperature and supports repetitive surge duty cycles up to 0.01 %, with derating applied above 25 °C ambient per Fig. 2. Its unidirectional configuration requires correct cathode orientation-marked by a band-and delivers 5.0 W steady-state power dissipation on infinite heatsink at 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown range defining reliable avalanche onset |
| VC @ IPPM | 58.1 V at 10.3 A - Clamped voltage during 600 W transient, limiting stress on downstream ICs |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity under standardized lightning-surge waveform |
| ID @ VWM | 1.0 µA - Ultra-low reverse leakage ensuring minimal standby power loss |
| TJ max | +150 °C - Enables operation in high-temperature industrial environments without derating |
| RθJA | 100 °C/W - Thermal resistance indicating need for copper pad area (0.2" × 0.2") for rated power handling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Anode | Reference/ground terminal | Typically tied to system ground plane; completes clamping path during transient event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability across life cycle |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage margin between clamp and protected device's absolute maximum rating |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS-compliant construction; HM3 suffix adds halogen-free requirement |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against inductive kickback from relay coils and solenoids. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or gate-source terminals to clamp switching spikes. Use Value: Limits transient voltage to ≤58.1 V, preventing MOSFET gate oxide rupture and maintaining functional safety integrity. | Use Scenario: Surge suppression on LIN bus lines and sensor supply rails exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between power rail and chassis ground to absorb ISO 7637-2 Pulse 5a energy. Use Value: Withstands 100 A surge (IFSM) and maintains <1 µA leakage at 36 V, preserving battery drain budgets. |
| Industrial PLC I/O Modules | Smart Power Outlets |
Use Scenario: Input protection for analog input channels receiving signals from 4–20 mA transmitters in factory automation. IC Role / Device Role / Timing Role: Low-leakage TVS placed before precision op-amp front-end to prevent saturation during EFT bursts. Use Value: 1.0 µA ID at VWM avoids measurement offset drift; fast response prevents latch-up in signal conditioning circuitry. | Use Scenario: Overvoltage protection on AC mains input stage prior to bridge rectifier and primary-side controller. IC Role / Device Role / Timing Role: Primary-level clamping device absorbing induced surges from nearby lightning strikes or grid switching. Use Value: 600 W PPPM rating enables compliance with UL 1449 Type 3 SPD requirements without external MOV coordination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHE3/5B | No AEC-Q101 qualification; same electrical specs and package | Not suitable for automotive production; acceptable for commercial/industrial use | Select when AEC-Q101 is not required and cost optimization is prioritized |
| SMAJ36AHE3/A | Lower PPPM (400 W), SMA package (DO-214AC), higher RθJA (150 °C/W) | Limited to lower-energy transients; less thermal margin in compact layouts | Choose only if board space constraints prohibit SMB footprint and surge levels remain below 400 W |
Compared with SMBJ36AHE3/5B and SMAJ36AHE3/A, the SMBJ36CHE3/5B uniquely combines AEC-Q101 qualification, 600 W surge capability, and SMB thermal performance-making it the preferred choice for automotive and high-reliability industrial designs where both qualification and robust clamping are mandatory.
Availability
SMBJ36CHE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and PLC I/O modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ36CHE3/5B 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 and application-specific validation.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where failure due to voltage surges must be prevented.
FAQ
What does the "HE3" suffix indicate in SMBJ36CHE3/5B?
The "HE3" suffix in SMBJ36CHE3/5B denotes RoHS-compliant construction with AEC-Q101 qualification. This means the device meets automotive-grade reliability standards-including temperature cycling, highly accelerated life testing, and ESD immunity-while also complying with EU RoHS Directive 2011/65/EU. The "5B" indicates packaging in 13-inch tape-and-reel format with 3200 units per reel. SMBJ36CHE3/5B is therefore certified for use in automotive ECUs and other mission-critical applications where qualification is mandatory.
How does SMBJ36CHE3/5B differ from non-AEC-Q101 versions like SMBJ36AHE3/5B?
SMBJ36CHE3/5B differs from SMBJ36AHE3/5B solely in AEC-Q101 qualification: both share identical electrical parameters (VWM = 36 V, VC = 58.1 V, PPPM = 600 W), package (SMB), and RoHS compliance. However, SMBJ36CHE3/5B undergoes additional stress tests-including 1000-hour HTOL, 1000-cycle temperature cycling, and human-body-model ESD ≥8 kV-required for automotive deployment. SMBJ36CHE3/5B is the only version approved for production in automotive body control modules and ADAS subsystems.
What is the maximum clamping voltage of SMBJ36CHE3/5B under surge conditions?
The maximum clamping voltage (VC) of SMBJ36CHE3/5B is 58.1 V, measured at 10.3 A peak pulse current (IPPM) using the standard 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range (−55 °C to +150 °C) and defines the upper voltage limit imposed on protected circuitry during transient events. Designers use this parameter to verify margin against downstream components' absolute maximum ratings-for example, ensuring VC remains below the 60 V gate-source limit of common 40 V MOSFETs.
Can SMBJ36CHE3/5B be used in bidirectional configurations?
No, SMBJ36CHE3/5B is strictly a unidirectional TVS diode, as indicated by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., SMBJ36CA). Using SMBJ36CHE3/5B in reverse-biased AC applications would result in forward conduction and potential failure. For bidirectional protection-such as on RS-485 or CAN bus lines-engineers must select SMBJ36CHE3/5B's counterpart SMBJ36CBE3/5B, which provides symmetrical clamping in both polarities with identical VWM and VC ratings.
What PCB layout guidance applies to SMBJ36CHE3/5B for optimal thermal and surge performance?
For optimal thermal and surge performance, SMBJ36CHE3/5B must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. These pads reduce thermal resistance (RθJA = 100 °C/W) and improve current spreading during 100 A surge events. Avoid narrow traces between the TVS and protected node; use short, wide connections to minimize inductance. Ground connections must tie directly to solid ground plane-not via vias-to preserve sub-nanosecond response. The cathode band must align with schematic polarity to ensure correct clamping direction.
SMBJ36CHE3/5B 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:
- -
- 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)
SMBJ36CHE3/5B FAQ
1.How can I place an order for SMBJ36CHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CHE3/5B 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 SMBJ36CHE3/5B reliable?
The price and inventory of SMBJ36CHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36CHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ36CHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CHE3/5B?
SMBJ36CHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CHE3/5B 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 SMBJ36CHE3/5B?
For technical support, including SMBJ36CHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CHE3/5B requirements.
6.How does Aetrix verify that SMBJ36CHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ36CHE3/5B 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 SMBJ36CHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ36CHE3/5B?
All SMBJ36CHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CHE3/5B, 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 SMBJ36CHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ36CHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CHE3/5B Tags
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