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Vishay General Semiconductor - Diodes Division SMBJ36CA-M3/52
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- Part No.:
- SMBJ36CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CA-M3/52.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,544
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Product details
Overview
SMBJ36CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features 36 V standoff 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 deployed to protect MOSFETs and sensor interfaces in industrial motor drives.
For engineers reviewing the SMBJ36CA-M3/52 datasheet, SMBJ36CA-M3/52 pinout, SMBJ36CA-M3/52 application, or SMBJ36CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VWM = 1.61), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on PCBs with 5.0 mm × 5.0 mm copper pads per terminal.
Technical Context
This TVS diode operates symmetrically in both directions, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ps), while the low incremental surge resistance supports effective energy diversion during ESD or lightning-induced surges.
The device is rated for repetitive 10/1000 μs pulses at 0.01% duty cycle and derates linearly above 25 °C ambient, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 when ordered with HE3/HM3 suffixes - not applicable to the M3/52 variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 3.3 V/5 V/24 V rail protection. |
| VBR (min/max) | 40.0 V / 44.2 V at IT = 1 mA - Confirmed breakdown range ensures reliable triggering across manufacturing lot and temperature variation. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamping voltage under 600 W transient; limits downstream IC stress to <60 V during surge events. |
| IPPM | 10.3 A - Peak pulse current supported by 10/1000 μs waveform; determines minimum trace width and pad area required (5.0 mm × 5.0 mm recommended). |
| PPPM | 600 W - Peak pulse power rating; defines transient energy handling capacity for IEC 61000-4-5 Level 3/4 surge immunity designs. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in enclosed industrial enclosures with limited airflow. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 2.20 mm min. cathode band width; compatible with JEDEC MS-012AC footprint. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts during positive or negative overvoltage excursions relative to cathode. |
| Cathode | Transient return path (bidirectional) | Connects to protected line; symmetrical conduction with anode ensures equal clamping in both polarities. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 combination wave testing up to 1 kV source impedance, meeting industrial surge immunity requirements. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration standards and EU Directive 2015/863 for restricted substances in commercial-grade applications. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life at ≤30 °C/60% RH; eliminates bake requirement prior to reflow, reducing assembly cost and risk of delamination. |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage exposure to downstream components-critical for protecting 36 V-rated gate drivers or analog front-ends. |
Applications
| Industrial Motor Drive Control | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protection of gate driver inputs against inductive kickback from H-bridge MOSFET switching. IC Role / Device Role / Timing Role: Bidirectional TVS clamps transient spikes on PWM control lines during MOSFET turn-off, preventing latch-up in isolated gate drivers. Use Value: Limits voltage excursion to ≤58.1 V, ensuring gate oxide integrity of 60 V-rated SiC drivers and maintaining functional safety compliance per ISO 26262 ASIL-B. |
Use Scenario: Surge suppression on LIN bus lines exposed to load dump and battery reversal transients in vehicle door modules. IC Role / Device Role / Timing Role: Fast-clamping TVS absorbs 10/1000 μs surges up to 600 W without degradation, preserving signal integrity on 19.2 kbps LIN communication. Use Value: Maintains <1 μA leakage at 36 V, avoiding false wake-up in low-power sleep mode while surviving ISO 7637-2 Pulse 1/2/5a test profiles. |
| Programmable Logic Controller (PLC) I/O Module | Industrial Sensor Interface (4–20 mA Loop) |
|
Use Scenario: Input protection for digital input cards receiving 24 V DC dry contact signals subject to field wiring transients. IC Role / Device Role / Timing Role: SMBJ36CA-M3/52 shunts induced surges from relay coil switching or nearby AC motor noise before reaching optocoupler input stage. Use Value: Withstands ≥1000 surges at rated power, extending field reliability beyond 10 years in factory automation environments. |
Use Scenario: Protection of precision 4–20 mA transmitter output against accidental connection to 24 V supply or ground shorts. IC Role / Device Role / Timing Role: Bidirectional clamping prevents reverse-bias damage to current-sense amplifier inputs and protects loop-powered sensors during hot-swap events. Use Value: 36 V VWM aligns with standard 24 V loop supply headroom, while 58.1 V VC avoids tripping overcurrent protection in 30 V-rated receivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-E3/52 | RoHS-compliant but contains brominated flame retardants; same electrical specs and SMB package. | Approved for commercial-grade non-automotive use where halogen content is unrestricted. | Select when halogen-free certification is not mandated by end-equipment environmental policy. |
| SMAJ36CA-M3 | Lower 400 W PPPM, 5.0 mm × 3.5 mm SMA package, 12.5 A IPPM at 41.3 V VC. | Suitable for space-constrained layouts where 20% lower surge rating is acceptable. | Choose for cost-sensitive consumer applications with reduced surge immunity requirements (IEC 61000-4-5 Level 2). |
Compared with SMBJ36CA-E3/52, the M3/52 variant adds halogen-free compliance without performance trade-offs; versus SMAJ36CA-M3, it delivers 50% higher surge power in a slightly larger footprint-critical for industrial equipment requiring long-term reliability under repeated transients.
Availability
SMBJ36CA-M3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and PLC I/O modules requiring stable component supply, halogen-free compliance, and repeatable surge immunity performance.
Supply support for SMBJ36CA-M3/52 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 high-reliability industrial and automotive applications.
The SMBJ series is engineered for robust transient suppression in harsh electromagnetic environments, targeting design-in for power conversion, motor control, and sensor interface circuits where failure tolerance and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ36CA-M3/52 at its rated peak pulse current?
The SMBJ36CA-M3/52 has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 10.3 A under a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024. The clamping voltage directly determines the maximum overvoltage stress imposed on downstream circuitry during surge events, making it essential for validating protection margins in 24 V or 36 V systems using SMBJ36CA-M3/52.
Is SMBJ36CA-M3/52 suitable for automotive applications requiring AEC-Q101 qualification?
No, SMBJ36CA-M3/52 is not AEC-Q101 qualified. It carries the M3 suffix indicating halogen-free RoHS compliance for commercial-grade use only. For automotive applications, Vishay offers the HM3 suffix variants (e.g., SMBJ36CAHM3_B/H), which include full AEC-Q101 qualification, extended temperature validation, and enhanced process controls. Engineers must specify the HM3 part number explicitly when designing for automotive BCM or ADAS subsystems requiring SMBJ36CA-M3/52-level protection with automotive-grade reliability.
How does the bidirectional nature of SMBJ36CA-M3/52 affect its PCB layout compared to unidirectional TVS diodes?
The SMBJ36CA-M3/52 has no polarity marking and conducts identically in both directions, eliminating orientation constraints during placement-unlike unidirectional variants (e.g., SMBJ36A-M3/52) that require cathode alignment. This simplifies SMT assembly, reduces misplacement risk, and enables direct replacement on differential lines such as RS-485 or CAN without redesigning trace routing. Layout still requires symmetric 5.0 mm × 5.0 mm copper pads per terminal to maintain thermal and surge performance, as specified in the SMBJ36CA-M3/52 datasheet.
What is the maximum operating temperature for SMBJ36CA-M3/52, and how does derating apply above 25 °C?
The SMBJ36CA-M3/52 has a maximum junction temperature (TJ) of +150 °C and derates linearly above 25 °C ambient per Figure 2 in the Vishay datasheet. At 75 °C ambient, its peak pulse power drops to approximately 450 W (75% of 600 W), and at 125 °C, it falls to ~300 W. This derating must be applied when calculating worst-case surge capability in sealed enclosures or high-temperature industrial environments. The SMBJ36CA-M3/52's RθJA of 100 °C/W confirms this behavior and informs heatsink or board copper area decisions.
Does SMBJ36CA-M3/52 meet moisture sensitivity level (MSL) requirements for lead-free reflow processes?
Yes, SMBJ36CA-M3/52 meets MSL Level 1 per J-STD-020, with unlimited floor life at ≤30 °C and ≤60% relative humidity. Its molding compound and matte tin plating are qualified for peak reflow temperatures up to 260 °C, fully supporting lead-free SAC305 soldering profiles without preconditioning bake. This eliminates handling delays and moisture-related defects like popcorning, making SMBJ36CA-M3/52 ideal for high-throughput SMT lines producing industrial controllers or sensor nodes where SMBJ36CA-M3/52 is used for primary surge defense.
SMBJ36CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ36CA-M3/52 FAQ
1.How can I place an order for SMBJ36CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CA-M3/52 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 SMBJ36CA-M3/52 reliable?
The price and inventory of SMBJ36CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ36CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CA-M3/52?
SMBJ36CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CA-M3/52 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 SMBJ36CA-M3/52?
For technical support, including SMBJ36CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ36CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ36CA-M3/52 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 SMBJ36CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ36CA-M3/52?
All SMBJ36CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CA-M3/52, 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 SMBJ36CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ36CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CA-M3/52 Tags
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