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Vishay General Semiconductor - Diodes Division P6SMB150AHM3_B/H
- Part No.:
- P6SMB150AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150AHM3_B/H.pdf
- Description:
- 600W,150V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,222
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Product details
Overview
P6SMB150AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 150 V standoff voltage (VWM), 207 V maximum clamping voltage (VC) at 2.9 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients and ESD.
For engineers reviewing the P6SMB150AHM3_B/H datasheet, P6SMB150AHM3_B/H pinout, P6SMB150AHM3_B/H application, or P6SMB150AHM3_B/H equivalent, key selection criteria include clamping voltage margin relative to protected device's absolute maximum rating, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, and unidirectional polarity with cathode band marking.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1 μA leakage at 128 V), but triggers avalanche conduction when reverse voltage exceeds its 143–158 V breakdown range (VBR at 1 mA), limiting transient energy by diverting surge current to ground. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
Designed for automated SMT assembly on standard PCB pads (0.2" × 0.2"), the device meets MSL Level 1 per J-STD-020, supports 260 °C lead-free reflow, and delivers repeatable 600 W pulse handling at 0.01% duty cycle - critical for protecting automotive ECUs and industrial motor drives exposed to load dump or inductive kick events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - maximum continuous reverse operating voltage before clamping begins; sets upper limit for safe system bus operation. |
| VBR (Breakdown Voltage) | 143–158 V at 1 mA - guaranteed avalanche initiation range; defines minimum overvoltage threshold for protection activation. |
| VC (Clamping Voltage) | 207 V at IPPM = 2.9 A - peak voltage seen by protected circuit during worst-case 10/1000 μs transient; must stay below downstream device's absolute max rating. |
| PPPM (Peak Pulse Power) | 600 W - maximum transient energy absorption capability under standardized 10/1000 μs waveform; determines survivability against common surge threats. |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance; used to calculate temperature rise under sustained power dissipation (e.g., 5.0 W PD limits ambient to ≤50 °C). |
| TJ max. | +150 °C - maximum allowable junction temperature; enables operation in under-hood automotive environments and sealed industrial enclosures. |
| AEC-Q101 Qualified | Yes - qualified for automotive applications per stress test requirements including HTOL, TC, HTRB, and UHAST; suffix HM3_B denotes halogen-free, RoHS-compliant, AEC-Q101 version. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to system ground or lower-potential rail; establishes reference for clamping action during positive transients on cathode side. |
| Cathode | Protected line connection / Avalanche conduction terminal | Connected to line being protected (e.g., 12 V supply rail); conducts surge current to anode when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust suppression of ISO 7637-2 Pulse 1/2a/5a transients without degradation across >10⁴ cycles. |
| AEC-Q101 qualified (HM3_B suffix) | Validated for automotive-grade reliability including temperature cycling, humidity testing, and high-temperature operating life - required for ECU, body control, and ADAS modules. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., <1 ns rise time), improving clamping precision beyond VC spec. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without popcorn cracking or delamination; eliminates pre-bake requirement. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature, reduces parameter drift vs. epoxy-passivated alternatives, and improves long-term leakage stability. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power rails from load dump (ISO 16750-2) and inductive switch-off spikes in vehicle lighting and window lift circuits. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 12 V supply and ground, triggered within <1 ns to clamp transients to ≤207 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic ICs and CAN PHYs by limiting voltage excursion below their 25 V absolute maximum rating. |
Use Scenario: Shields 24 V DC digital input channels of programmable logic controllers from field-wiring induced surges caused by relay coil de-energization or lightning-induced coupling. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted at connector entry point, conducting only during >128 V transients while remaining invisible to nominal 24 V signaling. Use Value: Eliminates need for external series resistors or RC filters, preserving signal edge integrity and enabling direct interface with 24 V sinking/sourcing sensors. |
| Telecom Power Supply Output Stage | Consumer Appliance Motor Drive Board |
|
Use Scenario: Safeguards secondary-side synchronous rectifiers and gate drivers in AC/DC adapters and PoE injectors against cross-talk and back-EMF from adjacent switching stages. IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor tied between +48 V output and ground, activated before MOSFET avalanche limits are exceeded. Use Value: Extends MOSFET lifetime by reducing repetitive overstress events; maintains output regulation during transient events without triggering OVP shutdown. |
Use Scenario: Guards MCU I/O pins and Hall-effect rotor position sensors in washing machine and HVAC blower motor control boards against commutation noise and brush arcing. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 50 pF at 0 V) placed directly at sensor connector, suppressing sub-100 ns spikes without distorting 10–100 kHz position signals. Use Value: Prevents false zero-crossing detection and erratic speed control, eliminating field returns due to electromagnetic interference in noisy motor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/5B | Same VWM (128 V), identical SMB package, but non-AEC-Q101, commercial-grade (E3), higher ID (5 μA vs. 1 μA at VWM). | Lacks automotive qualification; suitable for industrial/commercial power supplies where AEC-Q101 is not mandated. | Select SMAJ150A-E3/5B when cost sensitivity outweighs automotive compliance and leakage tolerance allows ≥5 μA. |
| 1.5SMC150AHE3_A/H | Higher package thermal mass (SMC vs. SMB), same VWM/VC specs, AEC-Q101 qualified, but larger footprint (DO-214AB) and RθJA = 50 °C/W. | Better thermal performance under sustained surge conditions; requires PCB area increase and layout revision. | Choose 1.5SMC150AHE3_A/H only if system-level thermal modeling shows junction temperature exceeding 150 °C with P6SMB150AHM3_B/H under worst-case duty cycle. |
Compared with SMAJ150A-E3/5B and 1.5SMC150AHE3_A/H, P6SMB150AHM3_B/H uniquely balances AEC-Q101 qualification, SMB footprint constraints, and 1 μA low-leakage performance - making it optimal for space-constrained automotive modules where both reliability and board area are critical.
Availability
P6SMB150AHM3_B/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power supply designs requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P6SMB150AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability, automotive-qualified, and industry-standard solutions.
The P6SMB Series targets high-energy transient suppression in space-constrained, thermally demanding applications - designed specifically for automotive, industrial, and telecom systems needing AEC-Q101 compliance and consistent 600 W pulse handling in SMB form factor.
FAQ
What is the clamping voltage of P6SMB150AHM3_B/H at its rated peak pulse current?
The P6SMB150AHM3_B/H has a maximum clamping voltage (VC) of 207 V when subjected to its specified peak pulse current (IPPM) of 2.9 A under the 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that protected downstream components will not experience voltages exceeding 207 V during such transient events. The P6SMB150AHM3_B/H achieves this clamping performance while maintaining low incremental surge resistance, ensuring predictable voltage limiting behavior across its operational lifetime.
Is P6SMB150AHM3_B/H qualified for automotive applications?
Yes, P6SMB150AHM3_B/H is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HM3_B", which denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It undergoes rigorous stress testing including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - making it suitable for under-hood and chassis-mounted automotive modules such as body control units and ADAS power domains. The P6SMB150AHM3_B/H meets all applicable AEC-Q101 requirements without derating.
What is the standoff voltage rating for P6SMB150AHM3_B/H?
The standoff voltage (VWM) for P6SMB150AHM3_B/H is 128 V - the maximum continuous reverse voltage the device can withstand without entering avalanche conduction. This rating ensures reliable blocking of normal system operating voltages while allowing immediate response to transients exceeding ~143 V (minimum VBR). The P6SMB150AHM3_B/H maintains leakage current ≤1 μA at this 128 V level, minimizing standby power loss in always-on automotive and industrial circuits.
How does the thermal resistance of P6SMB150AHM3_B/H affect its power handling?
P6SMB150AHM3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on standard 0.2" × 0.2" copper pads. At its rated power dissipation (PD) of 5.0 W, this results in a 500 °C temperature rise above ambient - which is physically impossible; therefore, the 5.0 W rating applies only with infinite heatsinking at TA = 50 °C. In real PCB layouts, the P6SMB150AHM3_B/H relies on short-duration pulse operation (e.g., 600 W for ≤1 ms), where thermal inertia prevents excessive junction heating. Continuous power must remain well below 0.5 W for safe operation at 85 °C ambient.
What packaging and reel options are available for P6SMB150AHM3_B/H?
P6SMB150AHM3_B/H is supplied in 7" diameter plastic tape and reel format (package code H) with 750 units per reel, as indicated by the "_H" suffix in the ordering code. This configuration supports high-speed automated placement and is compatible with standard SMT feeders. The device uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing. The P6SMB150AHM3_B/H reel packaging ensures moisture sensitivity level (MSL) 1 integrity and enables single-pass 260 °C lead-free reflow without preconditioning.
P6SMB150AHM3_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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB150AHM3_B/H FAQ
1.How can I place an order for P6SMB150AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150AHM3_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 P6SMB150AHM3_B/H reliable?
The price and inventory of P6SMB150AHM3_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 P6SMB150AHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB150AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150AHM3_B/H?
P6SMB150AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150AHM3_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 P6SMB150AHM3_B/H?
For technical support, including P6SMB150AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB150AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB150AHM3_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 P6SMB150AHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB150AHM3_B/H?
All P6SMB150AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150AHM3_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 P6SMB150AHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB150AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150AHM3_B/H Tags
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