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Vishay General Semiconductor - Diodes Division P6SMB150CAHM3_B/I
- Part No.:
- P6SMB150CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150CAHM3_B/I.pdf
- Description:
- 600W,150V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,544
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Product details
Overview
P6SMB150CAHM3_B/I 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 or power lines. It features a 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 (PPPM) with 10/1000 μs waveform - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P6SMB150CAHM3_B/I datasheet, P6SMB150CAHM3_B/I pinout, P6SMB150CAHM3_B/I application, or P6SMB150CAHM3_B/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level surge immunity design.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while the 10/1000 μs waveform rating reflects standardized surge immunity testing per IEC 61000-4-5.
Designed for automated SMT assembly, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD 201 Class 2 whisker resistance. The halogen-free, RoHS-compliant HM3 suffix confirms compliance with automotive-grade material requirements under AEC-Q101 qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 143–158 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 207 V at IPPM = 2.9 A - Peak voltage seen by protected circuit during 600 W surge; critical for downstream IC survival. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 μs waveform; enables robust ESD/EFT/lightning surge handling. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal standby current; preserves signal integrity and battery life in always-on interfaces. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs PCB copper pad sizing (0.2" × 0.2") for thermal management. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are symmetrical; device functions identically in either orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts reverse surge current during negative transients; forms one half of symmetrical clamping path. |
| Cathode | Transient current entry (positive polarity) | Accepts reverse surge current during positive transients; completes bidirectional clamping loop with Anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3_B/I) | Validated for automotive applications including engine control modules and ADAS sensor interfaces requiring long-term reliability under thermal cycling and vibration. |
| 600 W peak pulse power (10/1000 μs) | Withstands repetitive surges up to 0.01% duty cycle - sufficient for CAN bus, LIN, and industrial fieldbus line protection. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving clamping precision. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow soldering without moisture sensitivity concerns or baking requirements. |
| Halogen-free & RoHS-compliant | Meets automotive OEM environmental mandates (e.g., GMW3172, Ford WSS-M99P9999-A1) and EU RoHS Directive 2011/65/EU. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across sensor supply and ground to limit transient voltage to ≤207 V during 100 V/50 ms load dump events. Use Value: Prevents latch-up or permanent damage to 12-bit ADC inputs and op-amp front-ends operating at ±15 V rails. |
Use Scenario: Shielding RS-485 transceiver data lines in factory automation PLCs subjected to EFT bursts and lightning-induced surges. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF typical) bidirectional suppressor mounted differential-line-to-ground to maintain signal integrity up to 10 Mbps. Use Value: Maintains common-mode noise rejection while limiting differential-mode transients to safe levels for SN65HVD7x-series transceivers. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
|
Use Scenario: Secondary-side DC input protection in USB-C PD adapters where 12–20 V rails face coupling from primary-side switching noise and external surges. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between VBUS and GND to absorb 600 W pulses without forward conduction during normal operation. Use Value: Eliminates need for additional series impedance or RC snubbers while meeting UL 62368-1 transient immunity requirements. |
Use Scenario: Primary protection stage on DSL or POTS line cards interfacing with outside plant wiring vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: First-line bidirectional clamp before gas discharge tube (GDT) or MOV secondary protection, sharing surge energy via coordinated V-I characteristics. Use Value: Reduces let-through voltage to <250 V before GDT fires, extending lifetime of downstream silicon-based protection stages. |
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 (128 V), VC = 243 V at 2.5 A; lower PPPM (400 W); SMA package (larger RθJA ≈ 150 °C/W). | Limited to lower-energy surges; less suitable for automotive AEC-Q101-critical designs due to non-automotive qualification. | Select when cost sensitivity outweighs AEC-Q101 requirement and board space allows larger SMA footprint. |
| 1.5KE150CA | Higher VC (230 V), same VWM; through-hole DO-201 package; 1.5 kW PPPM but slower response due to higher junction capacitance (~150 pF). | Better for high-energy, low-frequency surges (e.g., AC mains); unsuitable for high-speed data lines or SMT-only production. | Choose only for legacy through-hole designs or where 1.5 kW surge headroom justifies manual assembly and layout redesign. |
Compared with SMAJ150CA and 1.5KE150CA, P6SMB150CAHM3_B/I delivers superior automotive qualification, tighter clamping (207 V vs. 230–243 V), and optimized SMT manufacturability - making it the preferred choice for new automotive and industrial designs requiring AEC-Q101 compliance and space-constrained layouts.
Availability
P6SMB150CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor systems, industrial I/O modules, consumer power adapter inputs, and telecom line card protection requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB150CAHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for rapid response, stable clamping, and seamless integration into automated SMT production lines.
FAQ
What is the clamping voltage of P6SMB150CAHM3_B/I at its rated peak pulse current?
The P6SMB150CAHM3_B/I has a maximum clamping voltage (VC) of 207 V at its specified peak pulse current (IPPM) of 2.9 A, measured using the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. The P6SMB150CAHM3_B/I maintains this clamping performance across its operational temperature range.
Is P6SMB150CAHM3_B/I qualified for automotive applications?
Yes, P6SMB150CAHM3_B/I is AEC-Q101 qualified, as indicated by the "HM3_B" suffix in its ordering code. It meets stress test requirements for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - validated for use in engine control units, body electronics, and ADAS sensor interfaces. The "_I" denotes 13-inch tape-and-reel packaging, fully compatible with automotive manufacturing flow.
What does the "CA" suffix mean in P6SMB150CAHM3_B/I?
The "CA" suffix in P6SMB150CAHM3_B/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., "A"), P6SMB150CAHM3_B/I has no cathode marking and functions identically regardless of orientation on the PCB, simplifying layout and reducing BOM complexity in differential or AC-coupled protection schemes.
What is the thermal resistance of P6SMB150CAHM3_B/I, and how does it affect PCB layout?
P6SMB150CAHM3_B/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. This value directly informs minimum pad area and thermal via placement: undersized pads increase junction temperature during repetitive surges, risking parametric shift or failure. The P6SMB150CAHM3_B/I datasheet specifies this mounting condition as baseline for all ratings.
How does P6SMB150CAHM3_B/I compare to unidirectional P6SMB150A variants?
P6SMB150CAHM3_B/I differs from unidirectional P6SMB150A variants primarily in polarity symmetry and leakage behavior: it clamps equally in both directions with no cathode band, while unidirectional versions exhibit forward conduction below VWM in one direction. The P6SMB150CAHM3_B/I also has identical VWM (128 V), VBR (143–158 V), and VC (207 V), but its bidirectional nature makes it ideal for AC signal lines, transformer-coupled interfaces, and applications where polarity cannot be guaranteed during assembly or field service.
P6SMB150CAHM3_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:
- -
- 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_B/I FAQ
1.How can I place an order for P6SMB150CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150CAHM3_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 P6SMB150CAHM3_B/I reliable?
The price and inventory of P6SMB150CAHM3_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 P6SMB150CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB150CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150CAHM3_B/I?
P6SMB150CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150CAHM3_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 P6SMB150CAHM3_B/I?
For technical support, including P6SMB150CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150CAHM3_B/I requirements.
6.How does Aetrix verify that P6SMB150CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB150CAHM3_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 P6SMB150CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB150CAHM3_B/I?
All P6SMB150CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150CAHM3_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 P6SMB150CAHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB150CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150CAHM3_B/I Tags
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