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Vishay General Semiconductor - Diodes Division P6SMB36CAHM3_B/H
- Part No.:
- P6SMB36CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CAHM3_B/H.pdf
- Description:
- 600W,36V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,122
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Product details
Overview
P6SMB36CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal and power lines. It features a 36 V standoff voltage (VWM), 49.9 V maximum clamping voltage at 12.0 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB36CAHM3_B/H datasheet, P6SMB36CAHM3_B/H pinout, P6SMB36CAHM3_B/H application, or P6SMB36CAHM3_B/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and compliance with IEC 61000-4-2/4-5 transient immunity requirements.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at 30.8 V), but switches to low-impedance conduction within <1 ns when reverse voltage exceeds its breakdown threshold (34.2–37.8 V at 1 mA). Its bidirectional architecture enables symmetric clamping across both polarities without external polarity management.
Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to +150 °C junction temperature. The halogen-free, RoHS-compliant HM3 suffix confirms JESD201 Class 2 whisker resistance and MSL Level 1 moisture sensitivity rating (peak reflow 260 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30.8 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below clamping onset. |
| VBR (Breakdown) | 34.2–37.8 V at 1 mA - Verified voltage range where device transitions from high- to low-impedance state; ensures predictable turn-on timing. |
| VC (Clamping) | 49.9 V at 12.0 A - Peak voltage seen by protected circuit during 10/1000 μs surge; directly limits stress on downstream ICs or MOSFETs. |
| PPPM | 600 W - Sustained transient energy absorption capacity per single 10/1000 μs pulse; supports repetitive surges at 0.01% duty cycle. |
| TJ max | +150 °C - Maximum allowable junction temperature; enables use in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated pick-and-place and reflow. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness; designated by HM3_B/H suffix. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are symmetrical; device functions identically regardless of orientation in PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals serve as interchangeable surge conduction paths; no directional installation required for bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints or external diode pairing. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) with margin when mounted on 5.0 mm × 5.0 mm copper pads. |
| AEC-Q101 qualified (HM3_B/H) | Validated for automotive electronics including engine control modules, ADAS sensors, and body control units requiring long-term field reliability. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response), improving protection fidelity for high-speed interfaces. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance; suitable for environmentally regulated industrial and consumer end equipment. |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and ISO 7637-2 pulses in vehicle cabin modules. IC Role / Device Role / Timing Role: Shunt clamping element placed between signal line and ground, activated only during overvoltage events. Use Value: Limits transient voltage to ≤49.9 V, preventing damage to 3.3 V/5 V transceivers while maintaining signal integrity during normal operation. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Bidirectional voltage clamp across input terminal and common rail, absorbing ±1 kV contact ESD per IEC 61000-4-2. Use Value: Eliminates need for discrete back-to-back diodes; reduces BOM count and PCB area while meeting industrial immunity standards. |
| Telecom Line Interface | Consumer Power Adapter Output |
|
Use Scenario: Surge protection on Ethernet PHY differential pairs and PoE data lines subject to lightning-induced surges. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF at 0 V) bidirectional clamp placed before magnetics or PHY IC. Use Value: Clamps induced transients to <50 V without distorting 100BASE-TX signaling; maintains signal rise/fall times below 1 ns. |
Use Scenario: Secondary-side overvoltage suppression on 12 V/19 V DC outputs of laptop and monitor power adapters. IC Role / Device Role / Timing Role: Final-stage shunt protector between output rail and ground, triggered only during fault conditions like feedback loop failure. Use Value: Prevents downstream device damage from sustained overvoltage; complements primary-side OVP with fast secondary-side response. |
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) and VC (49.9 V), but lower PPPM = 400 W and SMB package replaced by smaller SMA (DO-214AC); RθJA = 130 °C/W. | Preferred for space-constrained consumer designs where 400 W surge margin suffices; not AEC-Q101 qualified. | Select when board area is critical and automotive qualification is unnecessary. |
| 1.5SMC36CA | Higher PPPM = 1500 W, same VWM/VC, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm); non-AEC-Q101, commercial-grade M3 suffix only. | Suitable for high-energy industrial motor drives or power supply inputs where PCB real estate allows larger footprint. | Choose for legacy designs requiring higher surge margin and existing SMC land patterns. |
Compared with SMAJ36CA and 1.5SMC36CA, P6SMB36CAHM3_B/H delivers optimal balance of AEC-Q101 reliability, 600 W surge handling, and compact SMB footprint - making it the preferred choice for new automotive and industrial designs requiring validated long-term stability.
Availability
P6SMB36CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line surge suppression requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for P6SMB36CAHM3_B/H 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 high-reliability, high-efficiency solutions.
The P6SMB series was engineered specifically for robust transient suppression in automotive, industrial, and telecom systems - delivering standardized surge ratings, AEC-Q101 qualification, and consistent SMB packaging across voltage grades.
FAQ
What is the clamping voltage of P6SMB36CAHM3_B/H at its rated peak pulse current?
The P6SMB36CAHM3_B/H has a maximum clamping voltage (VC) of 49.9 V when subjected to its rated peak pulse current of 12.0 A using a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuits during surge events. The P6SMB36CAHM3_B/H maintains this clamping performance across its full operating temperature range.
Is P6SMB36CAHM3_B/H suitable for automotive applications?
Yes, P6SMB36CAHM3_B/H is AEC-Q101 qualified, as confirmed by the "HM3_B/H" suffix and Vishay's documentation (Rev. 09-Jan-2024, Doc. #88370). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification - making P6SMB36CAHM3_B/H appropriate for under-hood and cabin electronics such as body control modules and ADAS sensor interfaces.
What does the "CA" suffix indicate in P6SMB36CAHM3_B/H?
The "CA" suffix in P6SMB36CAHM3_B/H denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB36AHM3_B/H), P6SMB36CAHM3_B/H has no polarity marking and functions identically regardless of terminal orientation - simplifying layout and eliminating risk of reverse installation.
How does the SMB (DO-214AA) package of P6SMB36CAHM3_B/H compare to SMA or SMC alternatives?
The SMB (DO-214AA) package of P6SMB36CAHM3_B/H measures 4.06 mm × 5.59 mm - smaller than SMC (7.11 mm × 6.22 mm) but larger than SMA (4.06 mm × 2.79 mm). This size balances surge capability (600 W) with automated assembly compatibility and thermal dissipation (RθJA = 100 °C/W). P6SMB36CAHM3_B/H's SMB footprint is industry-standard and widely supported in pick-and-place libraries and reflow profiles.
What is the maximum junction temperature rating for P6SMB36CAHM3_B/H?
The P6SMB36CAHM3_B/H has a maximum junction temperature (TJ) rating of +150 °C, enabling reliable operation in high-ambient environments such as automotive engine compartments or industrial control cabinets. This rating is maintained under full-rated power dissipation (5.0 W) and surge conditions, provided PCB thermal design meets Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad layout per terminal.
P6SMB36CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- 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:
- 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)
P6SMB36CAHM3_B/H FAQ
1.How can I place an order for P6SMB36CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CAHM3_B/H 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 P6SMB36CAHM3_B/H reliable?
The price and inventory of P6SMB36CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB36CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CAHM3_B/H?
P6SMB36CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CAHM3_B/H 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 P6SMB36CAHM3_B/H?
For technical support, including P6SMB36CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB36CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB36CAHM3_B/H 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 P6SMB36CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB36CAHM3_B/H?
All P6SMB36CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CAHM3_B/H, 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 P6SMB36CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB36CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CAHM3_B/H Tags
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