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Vishay General Semiconductor - Diodes Division P6SMB150CAHM3/H
- Part No.:
- P6SMB150CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150CAHM3/H.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,850
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Product details
Overview
P6SMB150CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal 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 capability with a 10/1000 μs waveform - deployed in automotive-grade, halogen-free, AEC-Q101-qualified applications such as sensor interface protection.
For engineers reviewing the P6SMB150CAHM3/H datasheet, P6SMB150CAHM3/H pinout, P6SMB150CAHM3/H application, or P6SMB150CAHM3/H equivalent, key selection criteria include bidirectional clamping symmetry, MSL Level 1 moisture sensitivity, 150 °C max junction temperature, and compatibility with automated SMT assembly on SMB (DO-214AA) footprint layouts.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM) and fast response time (<1.0 ps), critical for protecting sensitive analog inputs and digital I/O against ESD and inductive switching spikes.
The device uses a low-inductance SMB (DO-214AA) package with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Thermal resistance is rated at RθJA = 100 °C/W (typical), and it meets JESD201 Class 2 whisker resistance - essential for long-term reliability in industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 165–185 V at 1.0 mA - Confirmed minimum and maximum threshold where avalanche conduction initiates reliably. |
| VC (Clamping Voltage) | 207 V at IPPM = 2.9 A - Peak voltage seen across protected circuit during 10/1000 μs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability under standardized 10/1000 μs waveform at 0.01% duty cycle. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Ensures minimal standby current draw and signal integrity in high-impedance circuits. |
| TJ max. | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial enclosures. |
| Package | SMB (DO-214AA) - Industry-standard surface-mount outline with 5.59 mm × 3.94 mm footprint and 2.20 mm height; compatible with standard reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are functionally symmetrical; both ends serve as interchangeable surge-current paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Terminal 1 | Surge Current Input (Bidirectional) | Accepts transient energy from either polarity; connects to protected line (e.g., CAN_H or RS-485 A). |
| Cathode / Terminal 2 | Surge Current Return (Bidirectional) | Completes low-impedance path to ground or reference rail during clamping; electrically identical to Terminal 1 in CA devices. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces per stress test requirements. |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for end-of-life recycling and hazardous substance restrictions in global markets. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/85% RH; eliminates bake-out requirement prior to reflow soldering. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) without degradation when properly mounted. |
| Glass passivated junction | Provides stable VBR tolerance (±5%), low leakage, and immunity to humidity-induced parameter drift over 15+ year service life. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting ABS wheel speed sensor outputs from load dump and alternator ripple in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤207 V while maintaining <1.0 μA leakage at 150 V nominal bus, preserving signal fidelity and MCU safety. |
Use Scenario: Shielding RS-485 transceivers in factory automation PLCs from EFT bursts and lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Line-to-line and line-to-ground TVS pair on differential bus (A/B) and common-mode ground reference. Use Value: Clamps 4 kV EFT events within 1 ns while adding <0.5 pF parasitic capacitance - no data rate degradation up to 25 Mbps. |
| Consumer Power Adapter Input | Telecom DSL Line Interface |
|
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier and controller ICs against mains-borne surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Secondary-side TVS across DC output rails to suppress reflected transients from upstream switching noise. Use Value: Absorbs 600 W pulses without thermal runaway; RθJA = 100 °C/W enables operation at 70 °C ambient with no heatsink. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers and receivers exposed to induced surges on copper telephone lines. IC Role / Device Role / Timing Role: Bidirectional TVS placed between tip/ring and codec IC, referenced to isolated telecom ground. Use Value: Matches 100 Ω line impedance with symmetrical clamping; maintains >60 dB common-mode rejection up to 30 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage 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) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when cost sensitivity outweighs automotive qualification and thermal margin requirements. |
| 1.5KE150CA | Higher PPPM (1500 W), axial leaded DO-201 package, higher leakage (5.0 μA) | Through-hole mounting only; unsuitable for high-density SMT designs or automated assembly | Choose for legacy board upgrades or high-energy surge zones where PCB space allows axial components. |
Compared with SMAJ150CA and 1.5KE150CA, P6SMB150CAHM3/H delivers superior automotive qualification, tighter leakage control, and optimized SMT manufacturability - making it the preferred choice for new designs targeting IPC-A-610 Class 3 or ISO/TS 16949 production environments.
Availability
P6SMB150CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial communication interfaces, consumer power adapters, and telecom line cards requiring stable component supply with full traceability and lifecycle management.
Supply support for P6SMB150CAHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for AEC-Q101 compliance, halogen-free construction, and seamless integration into automated SMT lines.
FAQ
What does the "CA" suffix indicate in P6SMB150CAHM3/H?
The "CA" suffix in P6SMB150CAHM3/H denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression for both positive and negative polarity surges. Unlike unidirectional variants (e.g., P6SMB150A), P6SMB150CAHM3/H has no cathode marking and functions identically regardless of terminal orientation - essential for protecting differential signal lines like CAN or RS-485 where polarity reversal may occur.
Is P6SMB150CAHM3/H suitable for automotive applications?
Yes, P6SMB150CAHM3/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials under Vishay's HM3 automotive-grade process. It is explicitly rated for operation from −65 °C to +150 °C junction temperature and meets MSL Level 1 - making it appropriate for under-hood ECUs, ADAS camera modules, and body control units where sustained thermal and mechanical reliability are mandatory.
How does the clamping voltage of P6SMB150CAHM3/H compare to its standoff voltage?
P6SMB150CAHM3/H has a standoff voltage (VWM) of 150 V and a maximum clamping voltage (VC) of 207 V at 2.9 A peak pulse current. This 57 V differential represents the worst-case voltage overshoot seen by protected circuitry during a full-power 10/1000 μs transient. The ratio VC/VWM ≈ 1.38 reflects efficient avalanche energy absorption - lower than typical for 600 W TVS devices, indicating strong clamping performance for sensitive 150 V-rated systems.
What is the thermal resistance of P6SMB150CAHM3/H, and how does it affect layout design?
P6SMB150CAHM3/H 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. This value assumes standard SMB pad geometry; reducing pad area increases RθJA and risks thermal saturation during repetitive surges. For continuous operation near 5.0 W dissipation, designers must ensure ≥25 mm² total copper area per terminal and avoid enclosing the device under conformal coating unless derated.
Can P6SMB150CAHM3/H be used in place of P6SMB150A in an existing design?
No - P6SMB150CAHM3/H is bidirectional while P6SMB150A is unidirectional, with distinct polarity markings and forward conduction behavior. Substituting them requires verifying that the circuit does not rely on DC blocking in one direction or forward voltage drop characteristics. In differential or AC-coupled signal paths, P6SMB150CAHM3/H may improve robustness; in DC power rails with polarity-sensitive protection, replacement is not recommended without schematic and layout review.
P6SMB150CAHM3/H 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/H FAQ
1.How can I place an order for P6SMB150CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150CAHM3/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 P6SMB150CAHM3/H reliable?
The price and inventory of P6SMB150CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB150CAHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB150CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150CAHM3/H?
P6SMB150CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150CAHM3/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 P6SMB150CAHM3/H?
For technical support, including P6SMB150CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150CAHM3/H requirements.
6.How does Aetrix verify that P6SMB150CAHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB150CAHM3/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 P6SMB150CAHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB150CAHM3/H?
All P6SMB150CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150CAHM3/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 P6SMB150CAHM3/H part is unused and in its original packaging.
Return procedure for P6SMB150CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150CAHM3/H Tags
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