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Vishay General Semiconductor - Diodes Division P6SMB150CAHM3/I
- Part No.:
- P6SMB150CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150CAHM3/I.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,565
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Product details
Overview
P6SMB150CAHM3/I 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 a 150 V standoff voltage (VWM), 165 V minimum breakdown voltage (VBR), 207 V maximum clamping voltage (VC) at 2.9 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, sensor interfaces, and telecom line drivers against ESD and inductive switching surges.
For engineers reviewing the P6SMB150CAHM3/I datasheet, P6SMB150CAHM3/I pinout, P6SMB150CAHM3/I application, or P6SMB150CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, MSL Level 1 rating, and thermal resistance (RθJA = 100 °C/W) for board-level surge immunity design in automotive and industrial environments.
Technical Context
The P6SMB150CAHM3/I operates as a symmetrical avalanche diode, conducting in both directions when reverse voltage exceeds VBR (165–185 V), with low incremental surge resistance ensuring stable clamping under repetitive 10/1000 μs transients. Its glass-passivated junction enables fast response time (<1 ns) and robust reliability across -65 °C to +150 °C operating range.
Designed for surface-mount automation, it uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets JESD 201 Class 2 whisker resistance. The SMB package provides 5.0 mm × 5.0 mm copper pad thermal management per terminal, supporting 5.0 W steady-state power dissipation at TA = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 165–185 V at 1 mA - Voltage at which avalanche conduction begins; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 207 V at IPPM = 2.9 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity with 10/1000 μs waveform; supports IEC 61000-4-5 Level 3/4 transient immunity. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial settings. |
| Package | SMB (DO-214AA) - Low-profile SMD outline with 5.59 mm × 3.94 mm footprint; optimized for automated placement and thermal pad layout. |
| AEC-Q101 Qualified | Yes (HM3 suffix) - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts bidirectionally when voltage magnitude exceeds VBR in either polarity. |
| Case (body) | Thermal and mechanical interface | Non-electrical; mounted on 5.0 mm × 5.0 mm copper pads per terminal to achieve specified RθJA = 100 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and telecom equipment interfaces. |
| AEC-Q101 qualified (HM3) | Validated for automotive powertrain, body electronics, and ADAS modules requiring extended lifetime and stress resilience. |
| Halogen-free & RoHS-compliant | Complies with EU Directive 2011/65/EU and IPC-1752A; supports green manufacturing and end-of-life recycling. |
| MSL Level 1 (260 °C peak) | Allows standard reflow soldering without pre-baking; simplifies PCB assembly and reduces process risk. |
Applications
| Automotive Sensor Protection | Industrial Ethernet Port Protection |
|---|---|
Use Scenario: Protecting CAN FD or LIN bus transceivers from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across differential pair or supply rail to limit transient voltage excursion. Use Value: Prevents latch-up or permanent damage to transceiver ICs during 12 V/24 V system surges up to ±100 V, leveraging 207 V clamping at 2.9 A. |
Use Scenario: Safeguarding PHY-side Ethernet magnetics and RJ45 connector pins against ESD (IEC 61000-4-2) and lightning-induced surges. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground transient suppressor on 10/100/1000BASE-T interfaces. Use Value: Maintains signal integrity by clamping transients within 1 ns while sustaining 600 W peak power without degradation. |
| Telecom DSL Line Interface | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding ADSL/VDSL line drivers and filters from induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Primary surge suppression element between transformer secondary and line driver IC. Use Value: Withstands repeated 10/1000 μs surges up to 600 W while maintaining <1 μA leakage at 150 V, minimizing standby power loss. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Across-motor terminals to clamp flyback voltage during MOSFET/FET switching. Use Value: Limits voltage spikes to ≤207 V, preventing gate oxide rupture in 200 V-rated power switches and extending motor controller lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150CA | Same VWM (150 V), lower PPPM (400 W), SMA package (larger RθJA ≈ 140 °C/W). | Limited to lower-energy transients; less suitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select when cost sensitivity outweighs peak power requirement and board space allows larger SMA footprint. |
| 1.5SMC150CA | Same VWM (150 V), higher PPPM (1500 W), SMC package (7.11 mm × 6.22 mm), higher VC (243 V). | Better for high-energy surges but increases clamping voltage stress on protected ICs. | Choose when surge energy exceeds 600 W and layout accommodates larger SMC outline with enhanced thermal mass. |
Compared with SMAJ150CA and 1.5SMC150CA, the P6SMB150CAHM3/I delivers optimal balance of compact SMB size, 600 W surge rating, AEC-Q101 qualification, and 207 V clamping - making it preferred for space-constrained automotive and industrial designs requiring verified reliability and precise voltage limiting.
Availability
P6SMB150CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial Ethernet ports, telecom line interfaces, and consumer appliance motor drives requiring stable component supply with guaranteed long-term sourcing.
Supply support for P6SMB150CAHM3/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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robustness under repetitive surge stress and environmental extremes.
FAQ
What is the clamping voltage of P6SMB150CAHM3/I at its rated peak pulse current?
The P6SMB150CAHM3/I has a maximum clamping voltage (VC) of 207 V at 2.9 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per standard test methods in the Vishay datasheet (Document Number: 88370) and defines the upper voltage limit imposed on protected circuits during surge events. Designers use this parameter to verify that downstream ICs remain within their absolute maximum ratings during transient exposure.
Is P6SMB150CAHM3/I suitable for automotive applications?
Yes, P6SMB150CAHM3/I is AEC-Q101 qualified (indicated by the HM3 suffix), meaning it has passed stress tests including temperature cycling, high-temperature reverse bias, and ESD per automotive reliability standards. Its operating junction temperature range of -65 °C to +150 °C and MSL Level 1 rating further support use in engine control units, body electronics, and ADAS modules where sustained reliability under thermal and mechanical stress is required.
How does the bidirectional configuration of P6SMB150CAHM3/I affect its circuit implementation?
The bidirectional configuration of P6SMB150CAHM3/I eliminates polarity concerns during placement - both terminals are functionally identical, allowing direct connection across AC signal pairs, differential buses (e.g., CAN, RS-485), or ungrounded power rails. Unlike unidirectional TVS diodes, it provides symmetrical clamping in positive and negative voltage excursions without requiring external series components or orientation verification, reducing design complexity and assembly errors.
What is the thermal resistance of P6SMB150CAHM3/I, and how does it impact PCB layout?
P6SMB150CAHM3/I 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. To achieve this rating, PCB layout must allocate dedicated thermal pads matching the SMB (DO-214AA) footprint dimensions and avoid excessive trace length or narrow connections. Failure to meet pad area specifications raises RθJA, risking thermal runaway during repetitive surge events or elevated ambient temperatures.
Does P6SMB150CAHM3/I require derating at elevated ambient temperatures?
Yes, P6SMB150CAHM3/I requires derating above TA = 25 °C, as shown in Figure 2 of the Vishay datasheet (88370). Its peak pulse power capability decreases linearly with rising junction temperature - for example, at TA = 85 °C, PPPM drops to approximately 420 W. Designers must apply the derating curve and ensure adequate copper area and airflow to maintain TJ ≤ 150 °C during worst-case surge repetition, especially in enclosed industrial enclosures or automotive under-hood locations.
P6SMB150CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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)
P6SMB150CAHM3/I FAQ
1.How can I place an order for P6SMB150CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150CAHM3/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 P6SMB150CAHM3/I reliable?
The price and inventory of P6SMB150CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB150CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB150CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150CAHM3/I?
P6SMB150CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150CAHM3/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 P6SMB150CAHM3/I?
For technical support, including P6SMB150CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150CAHM3/I requirements.
6.How does Aetrix verify that P6SMB150CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB150CAHM3/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 P6SMB150CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB150CAHM3/I?
All P6SMB150CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150CAHM3/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 P6SMB150CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB150CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150CAHM3/I Tags
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