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Vishay General Semiconductor - Diodes Division P6SMB36A-E3/52
- Part No.:
- P6SMB36A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36A-E3/52.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,788
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Product details
Overview
P6SMB36A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 36 V breakdown voltage (VBR = 34.2–37.8 V at 1 mA), 30.8 V stand-off voltage (VWM), 49.9 V maximum clamping voltage (VC) at 12.0 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 P6SMB36A-E3/52 datasheet, P6SMB36A-E3/52 pinout, P6SMB36A-E3/52 application, or P6SMB36A-E3/52 equivalent, key selection criteria include unidirectional polarity, SMB (DO-214AA) package compatibility, clamping performance under repetitive surge conditions, and AEC-Q101 qualification eligibility via alternate suffixes (e.g., HE3).
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage behavior and fast response time (<1 ns), while low incremental surge resistance enables effective energy diversion during transient events such as inductive switching or ESD.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its unidirectional configuration uses cathode-band marking and supports surge currents up to 100 A (8.3 ms half-sine) without degradation under specified derating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at 1.0 mA - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 49.9 V at 12.0 A - clamped voltage during 600 W transient, limiting downstream stress |
| PPPM | 600 W with 10/1000 µs waveform - peak surge handling capacity per industry-standard test |
| IFSM | 100 A (8.3 ms half-sine) - forward surge capability for unidirectional configurations only |
| TJ max. | 150 °C - enables operation in high-temperature industrial and automotive under-hood environments |
| RθJA | 100 °C/W - thermal performance baseline on minimal PCB copper; requires layout-aware heatsinking |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Molding compound meets UL 94 V-0 flammability rating. Polarity indicated by cathode band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; determines unidirectional conduction path |
| Cathode | Avalanche conduction terminal | Marked end; connects to higher-potential side; conducts during overvoltage to clamp to VC |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against lightning-induced surges and inductive kickback in 24 V/48 V systems |
| Glass passivated chip junction | Ensures stable leakage current (<1 µA at VWM) and long-term reliability under thermal cycling |
| MSL Level 1 (J-STD-020) | Allows unlimited floor life and reflow compatibility up to 260 °C peak without baking |
| RoHS-compliant, halogen-free option available | Meets environmental compliance requirements for consumer, industrial, and automotive electronics |
| AEC-Q101 qualification path | HE3/HM3 variants support automotive applications requiring qualified TVS components |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 36 V DC input rails in programmable logic controllers (PLCs) from load dump and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed across input terminals to limit transient voltage to ≤49.9 V. Use Value: Prevents damage to upstream DC-DC converters and microcontrollers during 600 W surge events with <1 ns response. |
Use Scenario: Safeguarding CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Standoff protection device mounted at connector entry point to shunt ESD and ISO 7637-2 pulses. Use Value: Maintains signal integrity by clamping transients below IC absolute maximum ratings while adding <0.5 pF parasitic capacitance. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHY power pins and auxiliary bias rails in PoE-powered network switches from induced surges. IC Role / Device Role / Timing Role: Secondary-level transient suppressor cascaded after gas discharge tube (GDT) primary protection. Use Value: Provides low-clamping-voltage follow-on protection with precise VWM margin above 36 V nominal rail. |
Use Scenario: Guarding H-bridge gate drivers and MCU I/O in smart washing machine motor control boards against back-EMF spikes. IC Role / Device Role / Timing Role: Localized clamping device placed near MOSFET source/drain nodes to absorb inductive energy. Use Value: Limits VDS overshoot to safe levels during PWM turn-off, reducing risk of device avalanche failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-T3 | Same SMB package, identical VBR (34.2–37.8 V), but lower VC = 49.3 V at 12.1 A; slightly tighter VWM tolerance (30.8 V vs. 30.8 V) | Preferred where sub-50 V clamping is critical; same footprint allows drop-in replacement in most layouts | Select SMBJ36A-T3 if lower clamping voltage is prioritized and JEDEC-compliant tape-and-reel delivery is required. |
| 1.5SMC36A | Larger SMC (DO-214AB) package; identical electrical specs but higher RθJA (75 °C/W); 1.5 kW peak power rating | Better thermal performance in high-duty-cycle environments; not footprint-compatible with SMB layouts | Choose 1.5SMC36A only when board space permits larger package and enhanced surge endurance is needed beyond 600 W. |
Compared with SMBJ36A-T3 and 1.5SMC36A, the P6SMB36A-E3/52 offers optimal balance of compact SMB footprint, verified 600 W surge capability, and RoHS-compliant commercial-grade sourcing - making it ideal for space-constrained industrial and telecom designs where standardized reel delivery matters.
Availability
P6SMB36A-E3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor modules, telecom line cards, and consumer appliance motor drives requiring stable component supply, consistent tape-and-reel packaging (750 pcs per 7" reel), and traceable RoHS-compliant sourcing.
Supply support for P6SMB36A-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, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where repeatable clamping performance and thermal stability are essential.
FAQ
What is the breakdown voltage range of the P6SMB36A-E3/52?
The P6SMB36A-E3/52 has a guaranteed breakdown voltage (VBR) range of 34.2 V to 37.8 V at a test current of 1.0 mA, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures predictable avalanche initiation during overvoltage events and supports accurate system-level protection design around a nominal 36 V rail. The P6SMB36A-E3/52 maintains this specification across its full operating temperature range.
Is the P6SMB36A-E3/52 suitable for automotive applications?
The base P6SMB36A-E3/52 is a commercial-grade, RoHS-compliant part. However, Vishay offers AEC-Q101-qualified versions under ordering codes like P6SMB36AHE3_B/H - which share identical electrical characteristics but undergo additional stress testing for automotive use. The P6SMB36A-E3/52 itself is not AEC-Q101 certified, so designers requiring automotive qualification must specify the HE3 or HM3 suffix variants.
What does the "-E3/52" suffix indicate in P6SMB36A-E3/52?
The "-E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/52" specifies packaging: 750 pieces per 7-inch diameter plastic tape-and-reel. This format aligns with standard SMT assembly requirements and ensures compatibility with automated pick-and-place equipment. The P6SMB36A-E3/52 is not halogen-free; for that variant, the "-M3/52" suffix is used.
How does the clamping voltage of P6SMB36A-E3/52 compare to its standoff voltage?
The P6SMB36A-E3/52 has a standoff voltage (VWM) of 30.8 V and a maximum clamping voltage (VC) of 49.9 V at 12.0 A peak pulse current. This 19.1 V differential provides sufficient margin above VWM to avoid false triggering during normal operation while ensuring downstream components see no more than 49.9 V during worst-case transients - a critical design parameter for protecting 36 V-rated ICs and MOSFETs.
Can the P6SMB36A-E3/52 be used in bidirectional configurations?
No - the P6SMB36A-E3/52 is a unidirectional TVS diode, identifiable by its cathode band marking. For bidirectional operation, Vishay offers the P6SMB36CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and no polarity marking. Using the P6SMB36A-E3/52 in reverse-biased AC applications would result in forward conduction and potential failure; always match device polarity to circuit topology.
P6SMB36A-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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB36A-E3/52 FAQ
1.How can I place an order for P6SMB36A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36A-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 P6SMB36A-E3/52 reliable?
The price and inventory of P6SMB36A-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 P6SMB36A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB36A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36A-E3/52?
P6SMB36A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36A-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 P6SMB36A-E3/52?
For technical support, including P6SMB36A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36A-E3/52 requirements.
6.How does Aetrix verify that P6SMB36A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB36A-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 P6SMB36A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB36A-E3/52?
All P6SMB36A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36A-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 P6SMB36A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB36A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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