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Vishay General Semiconductor - Diodes Division P6SMB36CA-E3/52
- Part No.:
- P6SMB36CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CA-E3/52.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB36CA-E3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, rated for 36 V standoff voltage (VWM), 49.9 V clamping voltage (VC) at 12.0 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It protects signal lines and power rails in automotive sensor units, industrial I/O interfaces, and telecom front-end circuits against ESD and inductive switching transients.
For engineers reviewing the P6SMB36CA-E3/52 datasheet, P6SMB36CA-E3/52 pinout, P6SMB36CA-E3/52 application, or P6SMB36CA-E3/52 equivalent, this device delivers verified bidirectional clamping performance with MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and AEC-Q101 qualification availability - critical for automotive-grade transient protection design-in and long-term supply assurance.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 34.2–37.8 V (min/max) under 1.0 mA test current, and reverse leakage current ≤1.0 μA at 30.8 V standoff. Its low incremental surge resistance enables fast clamping response (<1 ns typical) to transient events such as ISO 7637-2 load dump surges or IEC 61000-4-2 ESD pulses.
The device uses a glass-passivated silicon junction housed in an SMB (DO-214AA) thermally optimized package, delivering RθJA = 100 °C/W and RθJL = 20 °C/W. It supports repetitive surge duty cycles up to 0.01 % and is rated for continuous operation from –65 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30.8 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 34.2–37.8 V @ 1.0 mA - Confirmed symmetrical breakdown threshold in both directions; ensures predictable turn-on behavior. |
| VC (Clamping) | 49.9 V @ 12.0 A - Peak voltage seen by protected circuit during 10/1000 μs surge; directly limits stress on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling capability per JEDEC standard waveform; validates robustness against common automotive/industrial transients. |
| IPPM | 12.0 A - Maximum non-repetitive peak pulse current supported; determines minimum trace width and PCB layout requirements. |
| TJ max. | +150 °C - Maximum junction temperature rating; enables reliable operation in under-hood or high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
SMB (DO-214AA) package: low-profile, molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional polarity distinction; either terminal serves as anode or cathode depending on transient polarity - enables single-device protection of AC-coupled or floating lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validated surge energy absorption capacity for ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 3 compliance in compact SMB form factor. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage exposure to protected ICs - e.g., keeps microcontroller I/O pins below absolute maximum ratings during transients. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure risk; eliminates bake preconditioning requirement. |
| Glass passivated junction | Ensures stable leakage current and breakdown voltage over time and temperature; improves long-term reliability in harsh environments. |
| AEC-Q101 qualification option | Available with HE3/HM3 suffixes - confirms validated performance for automotive electronics including engine control, ADAS sensors, and body modules. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed at connector interface to shunt surge energy before it reaches signal conditioning circuitry. Use Value: Limits transient voltage to ≤49.9 V, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive MCUs and analog front-ends. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges and ground loop spikes. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V DC input lines to absorb repetitive 10/1000 μs surges up to 600 W without degradation. Use Value: Maintains system uptime by preventing false triggering or permanent damage to optocoupler inputs and level-shifting logic. |
| Telecom Line Interface | Consumer Power Adapter ESD Guard |
Use Scenario: Front-end protection of Ethernet PHYs, RS-485 transceivers, and PoE injectors exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage clamping device on differential pairs to reduce surge amplitude before secondary filtering and TVS arrays. Use Value: Withstands ≥12 A peak pulses while maintaining <1 ns response - critical for preserving signal integrity in high-speed data links. |
Use Scenario: Secondary-side transient suppression on USB-C and barrel jack inputs of smart home hubs and audio amplifiers. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) bidirectional clamp absorbing IEC 61000-4-2 ±8 kV contact discharge events. Use Value: Prevents reset or brownout conditions caused by ESD coupling into 5 V/9 V power rails without affecting steady-state regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Same VWM (30.8 V), lower PPPM (400 W), SMA package (larger footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump where 600 W margin is required. | Select P6SMB36CA-E3/52 when board space is constrained and thermal performance must be maximized in SMB footprint. |
| SMCJ36CA | Same VWM and bidirectional function, but SMC package (higher PPPM = 1500 W, larger size, RθJA = 50 °C/W) | Over-specified for most 24–36 V systems; occupies ~2.5× PCB area vs. SMB; better for high-reliability industrial power supplies. | Choose P6SMB36CA-E3/52 for cost-sensitive, space-constrained designs needing precise 600 W capability without over-engineering. |
Compared with SMAJ36CA and SMCJ36CA, P6SMB36CA-E3/52 delivers optimal balance of surge rating, thermal efficiency, and miniaturization - enabling robust transient protection in automotive and industrial edge nodes where SMB footprint and 600 W capability are jointly required.
Availability
P6SMB36CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer power adapter designs requiring stable component supply with full RoHS compliance and traceable sourcing.
Supply support for P6SMB36CA-E3/52 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, power efficiency, and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in space-constrained applications, with design focus on automotive, industrial, and telecom systems requiring standardized SMB packaging, AEC-Q101 readiness, and consistent 600 W surge performance.
FAQ
What is the clamping voltage of P6SMB36CA-E3/52 at its rated peak pulse current?
The P6SMB36CA-E3/52 has a maximum clamping voltage (VC) of 49.9 V at 12.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and represents the upper voltage limit imposed on protected circuitry during a worst-case transient event. The P6SMB36CA-E3/52 maintains this clamping performance bidirectionally due to its symmetrical construction.
Is P6SMB36CA-E3/52 suitable for automotive applications?
Yes - while the base P6SMB36CA-E3/52 is commercial-grade RoHS-compliant, Vishay offers AEC-Q101 qualified variants (e.g., P6SMB36CAHE3_B) in the same SMB package. These qualified versions undergo extended stress testing for temperature cycling, humidity, and surge endurance, making them suitable for under-hood and chassis-mounted automotive electronics. The P6SMB36CA-E3/52 itself shares identical electrical specs and thermal characteristics with those qualified versions.
What is the standoff voltage rating of P6SMB36CA-E3/52?
The P6SMB36CA-E3/52 has a maximum reverse standoff voltage (VWM) of 30.8 V, meaning it remains in high-impedance state up to this DC or RMS voltage level without significant leakage. This rating ensures compatibility with nominal 24 V systems and provides sufficient margin below the 34.2–37.8 V breakdown range. The P6SMB36CA-E3/52 sustains ≤1.0 μA reverse leakage at VWM, minimizing standby power loss.
Does P6SMB36CA-E3/52 have polarity markings on the package?
No - the P6SMB36CA-E3/52 is a bidirectional TVS diode and carries no polarity marking (e.g., cathode band) on its SMB (DO-214AA) package. Its symmetrical internal structure allows either terminal to serve as anode or cathode depending on transient polarity, simplifying layout for AC-coupled or floating signal lines. This distinguishes it from unidirectional variants like P6SMB36A-E3/52, which feature a visible cathode band.
What is the thermal resistance of P6SMB36CA-E3/52?
The P6SMB36CA-E3/52 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, and a junction-to-lead resistance (RθJL) of 20 °C/W. These values define its ability to dissipate surge energy without exceeding the +150 °C maximum junction temperature. The P6SMB36CA-E3/52's low RθJL supports effective heat transfer to PCB copper during repetitive transient events.
P6SMB36CA-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB36CA-E3/52 FAQ
1.How can I place an order for P6SMB36CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CA-E3/52 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 P6SMB36CA-E3/52 reliable?
The price and inventory of P6SMB36CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36CA-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB36CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CA-E3/52?
P6SMB36CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CA-E3/52 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 P6SMB36CA-E3/52?
For technical support, including P6SMB36CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CA-E3/52 requirements.
6.How does Aetrix verify that P6SMB36CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB36CA-E3/52 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 P6SMB36CA-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB36CA-E3/52?
All P6SMB36CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CA-E3/52, 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 P6SMB36CA-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB36CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CA-E3/52 Tags
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