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Vishay General Semiconductor - Diodes Division P6SMB36AHM3_B/I
- Part No.:
- P6SMB36AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36AHM3_B/I.pdf
- Description:
- 600W,36V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,584
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Product details
Overview
P6SMB36AHM3_B/I 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 30.8 V stand-off voltage (VWM), 34.2–37.8 V breakdown voltage (VBR) at 1 mA, 49.9 V maximum clamping voltage (VC) at 12.0 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB36AHM3_B/I datasheet, P6SMB36AHM3_B/I pinout, P6SMB36AHM3_B/I application, or P6SMB36AHM3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, 150 °C max junction temperature, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt clamp during overvoltage events, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its unidirectional configuration enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The device is rated for 600 W peak pulse power under 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements, supporting reflow soldering up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30.8 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin. |
| VBR (Breakdown) | 34.2–37.8 V at 1 mA - Voltage range at which device enters avalanche conduction; ensures predictable turn-on threshold. |
| VC (Clamping) | 49.9 V at 12.0 A IPPM - Maximum voltage seen by protected circuit during 10/1000 μs transient; determines downstream component stress. |
| PPPM | 600 W - Peak transient energy absorption capability; validates protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with IPC-7351B land patterns. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; HM3 suffix denotes qualification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; defines directionality in DC applications. |
| Cathode | Avalanche conduction terminal / Clamping node | Connected to higher-potential side (e.g., VIN or signal line); conducts surge current to ground when VAK ≥ VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against lightning-induced surges and inductive switching spikes in 12 V/24 V automotive systems. |
| AEC-Q101 qualified (HM3 suffix) | Validates reliability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JS709C; eliminates brominated flame retardants without compromising UL 94 V-0 flammability rating. |
| Low profile SMB package | Reduces PCB real estate vs. SMA/SMB alternatives; supports high-density layouts in space-constrained ECUs and sensor nodes. |
| Glass passivated junction | Improves long-term stability and moisture resistance vs. epoxy-passivated devices; critical for humid under-hood environments. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power rails from load-dump transients (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Shunt-clamp TVS placed between VBAT and GND, triggered within <1 ns to limit voltage to ≤49.9 V during 100 V/100 ms pulses. Use Value: Prevents MCU brown-out or latch-up during cold-crank and jump-start events while maintaining system uptime. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Unidirectional TVS connected across signal and return paths to clamp ESD (IEC 61000-4-2 ±8 kV) and EFT (IEC 61000-4-4 ±2 kV). Use Value: Maintains signal integrity below 0.1% error band during transient events, avoiding false readings or controller resets. |
| Consumer USB Power Delivery Protection | Telecom Base Station DC Feeder Protection |
Use Scenario: Guarding USB-C PD port input stages against miswiring-induced reverse-voltage faults and hot-plug surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed upstream of buck converter IC to absorb 600 W surges without forward conduction during normal 5–20 V operation. Use Value: Eliminates need for redundant overvoltage lockout circuitry, reducing BOM count and layout complexity. |
Use Scenario: Shielding -48 V DC feeder lines in 4G/5G base station remote radio units from induced lightning surges (IEC 61000-4-5 Level 4). IC Role / Device Role / Timing Role: TVS mounted at cabinet entry point with 0.2" × 0.2" copper pads to dissipate 600 W pulses into chassis ground. Use Value: Extends mean time between failures (MTBF) of RF power amplifiers by limiting transient voltage to <50 V at critical bias nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5B | Same VWM (30.8 V), VC (49.9 V), and PPPM (600 W), but SMA package (DO-214AC); 10% larger footprint; no AEC-Q101 qualification. | Preferred for commercial-grade consumer or telecom designs where automotive qualification is unnecessary and board space allows SMA. | Select when cost sensitivity outweighs automotive compliance and PCB area permits larger package. |
| 1.5SMC36A | Same electrical specs (VWM, VBR, VC, PPPM), but SMC (DO-214AB) package; 20% larger than SMB; higher RθJA (125 °C/W); no AEC-Q101 or halogen-free certification. | Suitable for legacy industrial power supplies with existing SMC footprints and less stringent thermal or environmental requirements. | Choose only for drop-in replacement in pre-qualified SMC-based designs lacking AEC-Q101 or RoHS mandates. |
Compared with SMAJ36A-E3/5B and 1.5SMC36A, P6SMB36AHM3_B/I delivers identical clamping performance in a smaller SMB footprint, with verified AEC-Q101 qualification and halogen-free construction - making it the optimal choice for new automotive and high-reliability industrial designs requiring compact, compliant, and validated surge protection.
Availability
P6SMB36AHM3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom DC power systems requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for P6SMB36AHM3_B/I 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade validation.
The P6SMB Series targets high-energy transient suppression in space-constrained, thermally demanding applications - engineered specifically for automotive, industrial, and telecom systems needing robust, standardized, and AEC-Q101-qualified TVS solutions.
FAQ
What is the clamping voltage of P6SMB36AHM3_B/I at its rated peak pulse current?
The P6SMB36AHM3_B/I 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 defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB36AHM3_B/I maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C) and is validated for repetitive surge duty cycles up to 0.01%.
Is P6SMB36AHM3_B/I qualified for automotive applications?
Yes, P6SMB36AHM3_B/I is AEC-Q101 qualified, as indicated by the "HM3" suffix and "_B" revision code in its ordering designation. This qualification covers stress tests including high-temperature operating life (HTOL), temperature cycling (TCT), and human-body-model ESD (HBM). The P6SMB36AHM3_B/I is explicitly intended for use in automotive power distribution modules, body control units, and ADAS sensor interfaces where failure modes must meet zero-defect field reliability targets.
What does the "HM3" suffix signify in P6SMB36AHM3_B/I?
The "HM3" suffix in P6SMB36AHM3_B/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. "H" indicates halogen-free molding compound meeting JEDEC JS709C; "M3" confirms RoHS compliance and JESD201 Class 2 whisker resistance. This distinguishes P6SMB36AHM3_B/I from commercial-grade variants (e.g., "E3" or "M3" alone) and ensures suitability for environmentally regulated and safety-critical automotive deployments.
How does the SMB package of P6SMB36AHM3_B/I compare to SMA or SMC in thermal performance?
The SMB (DO-214AA) package of P6SMB36AHM3_B/I offers a thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead) when mounted on 0.2" × 0.2" copper pads - superior to SMA (125 °C/W) and comparable to SMC (110 °C/W) under identical conditions. Its smaller footprint reduces parasitic inductance, improving high-frequency surge response, while maintaining sufficient thermal mass for 600 W pulse dissipation in short-duration events.
Can P6SMB36AHM3_B/I be used in bidirectional configurations?
No, P6SMB36AHM3_B/I is a unidirectional TVS diode, as confirmed by its part number suffix "A" (not "CA") and cathode band marking. Bidirectional operation requires the "CA" variant (e.g., P6SMB36CAHM3_B/I), which exhibits symmetrical clamping in both polarities. Using P6SMB36AHM3_B/I in AC or floating-signal applications risks forward conduction and failure; always verify polarity alignment during PCB layout for the P6SMB36AHM3_B/I.
P6SMB36AHM3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB36AHM3_B/I FAQ
1.How can I place an order for P6SMB36AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36AHM3_B/I 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 P6SMB36AHM3_B/I reliable?
The price and inventory of P6SMB36AHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36AHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB36AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36AHM3_B/I?
P6SMB36AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36AHM3_B/I 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 P6SMB36AHM3_B/I?
For technical support, including P6SMB36AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36AHM3_B/I requirements.
6.How does Aetrix verify that P6SMB36AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB36AHM3_B/I 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 P6SMB36AHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB36AHM3_B/I?
All P6SMB36AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36AHM3_B/I, 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 P6SMB36AHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB36AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36AHM3_B/I Tags
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