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Vishay General Semiconductor - Diodes Division P6SMB150A-M3/5B
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- Part No.:
- P6SMB150A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150A-M3/5B.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,595
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Product details
Overview
P6SMB150A-M3/5B 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 clamping voltage (VC) at 2.9 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in industrial power supplies and automotive ECUs.
For engineers reviewing the P6SMB150A-M3/5B datasheet, P6SMB150A-M3/5B pinout, P6SMB150A-M3/5B application, or P6SMB150A-M3/5B equivalent, key selection criteria include unidirectional polarity, 128 μA max reverse leakage at 128 V, -65 °C to +150 °C operating junction temperature, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification availability via HM3_B variant.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance standby to low-impedance conduction when reverse voltage exceeds its breakdown threshold (VBR = 143–158 V at 1 mA). Its glass-passivated junction ensures stable avalanche behavior under repetitive 10/1000 μs transients at 0.01% duty cycle.
Thermal performance is defined by RθJA = 100 °C/W (junction-to-ambient) and RθJL = 20 °C/W (junction-to-lead), with derating required above TA = 25 °C per Figure 2. The cathode band identifies polarity, and mounting on 5.0 mm × 5.0 mm copper pads per JEDEC standard ensures specified PPPM and IPPM ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 128 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 143–158 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transient events. |
| VC (Clamping) | 207 V at IPPM = 2.9 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling capability; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID (Leakage) | 1.0 μA max at 128 V - Low reverse leakage preserves signal integrity and minimizes standby power loss. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place. |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL level 1 (260 °C reflow peak), dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return in unidirectional protection configuration. |
| Cathode | Avalanche conduction terminal / Surge shunt node | Marked with band; connects to line being protected; conducts transient energy to Anode during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates immunity to severe transient threats including ISO 7637-2 Pulse 5a and IEC 61000-4-5 Combination Wave. |
| Low incremental surge resistance | Enables tight clamping (VC/VBR ratio = 1.31) and minimal let-through energy during fast-rising transients. |
| Glass passivated junction | Ensures long-term reliability and stable VBR over temperature and lifetime; eliminates metallization migration risks. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial end equipment without compromising surge rating. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles without baking; reduces manufacturing overhead. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against back-EMF spikes from relay and solenoid switching. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between MOSFET gate and source, or across MCU GPIO and chassis ground. Use Value: Limits transient voltage to ≤207 V, preventing latch-up or oxide damage in 3.3 V/5 V logic interfaces while surviving >100,000 surge cycles. |
Use Scenario: Shielding LIN bus transceivers and sensor supply rails from load dump and jump-start surges in vehicle body electronics. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V rail upstream of LDOs and CAN/LIN PHYs, referenced to battery ground. Use Value: Withstands 12 V system surges up to ±100 V (ISO 16750-2) and clamps within 1 ns, preserving communication integrity during ignition events. |
| Telecom Power Rectification | Consumer Appliance Control Boards |
Use Scenario: Secondary-side surge suppression on AC/DC adapter outputs feeding FPGAs and PMICs in base station subsystems. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC output capacitor to absorb residual transients escaping primary-side MOVs. Use Value: 600 W rating handles coupled lightning surges (IEC 61000-4-5) without degradation; 150 °C TJ rating supports sealed enclosure thermal profiles. |
Use Scenario: Input protection for microcontroller reset lines and front-panel button interfaces exposed to ESD in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Low-leakage (1 μA) unidirectional TVS on 3.3 V reset rail, cathode tied to VDD, anode to GND. Use Value: Prevents false resets during 8 kV contact ESD (IEC 61000-4-2) while adding negligible quiescent current to battery-backed circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A | Same VWM (150 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 150 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select SMAJ150A only for space-constrained consumer designs where 400 W surge capacity suffices. |
| 1.5SMC150A | Same VWM and PPPM (600 W), but SMC package (7.11 mm × 6.22 mm); higher IPPM (3.1 A) and lower VC (200 V) | Better clamping performance but requires larger PCB area; not halogen-free (E3 suffix standard). | Choose 1.5SMC150A when tighter clamping (200 V vs. 207 V) is critical and board space allows SMC footprint. |
Compared with SMAJ150A and 1.5SMC150A, P6SMB150A-M3/5B delivers optimal balance of 600 W surge rating, SMB footprint compatibility, halogen-free compliance, and 207 V clamping-making it preferred for industrial and automotive production where regulatory alignment and proven field reliability are mandatory.
Availability
P6SMB150A-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power rectification, and consumer appliance control boards requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification path.
Supply support for P6SMB150A-M3/5B 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 reliability, efficiency, and application-specific optimization.
The P6SMB Series was engineered for high-reliability transient suppression in harsh environments-designed to meet automotive AEC-Q101, industrial surge immunity (IEC 61000-4-5), and extended temperature operation (-65 °C to +150 °C).
FAQ
What is the clamping voltage of P6SMB150A-M3/5B at its rated peak pulse current?
The P6SMB150A-M3/5B has a maximum clamping voltage (VC) of 207 V at a peak pulse current (IPPM) of 2.9 A under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB150A-M3/5B maintains this clamping performance across its full operating temperature range.
Is P6SMB150A-M3/5B suitable for automotive applications requiring AEC-Q101 qualification?
The P6SMB150A-M3/5B itself is not AEC-Q101 qualified; however, the P6SMB150AHM3_B variant (same electrical specs, B-suffix revision code) is explicitly AEC-Q101 qualified per Note (1) on page 3 of datasheet 88370. For automotive production, specify P6SMB150AHM3_B/H or P6SMB150AHM3_B/I to ensure qualification. The P6SMB150A-M3/5B remains suitable for non-automotive industrial use with identical surge performance.
What does the "M3/5B" suffix indicate in P6SMB150A-M3/5B?
In P6SMB150A-M3/5B, "M3" denotes halogen-free, RoHS-compliant construction per Vishay's material categorization, while "5B" specifies packaging in a 13-inch diameter plastic tape and reel containing 3200 units. This differs from "52", which indicates a 7-inch reel with 750 units. Both M3 and E3 variants share identical electrical characteristics; only environmental and packaging attributes differ.
How does the thermal resistance of P6SMB150A-M3/5B affect its surge handling capability?
The P6SMB150A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. These values directly impact sustained surge repetition: at ambient temperatures above 25 °C, derating per Figure 2 in datasheet 88370 reduces allowable PPPM. For example, at TA = 75 °C, PPPM drops to ~420 W. Proper PCB copper pad layout (0.2" × 0.2") is essential to achieve rated 600 W performance.
Can P6SMB150A-M3/5B be used in bidirectional configurations?
No-P6SMB150A-M3/5B is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the CA-suffixed variant (e.g., P6SMB150CA). Using P6SMB150A-M3/5B in reverse-biased AC signal paths would result in forward conduction and failure. For bidirectional protection at 150 V standoff, select P6SMB150CA-M3/5B instead.
P6SMB150A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB150A-M3/5B FAQ
1.How can I place an order for P6SMB150A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150A-M3/5B 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 P6SMB150A-M3/5B reliable?
The price and inventory of P6SMB150A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB150A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB150A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150A-M3/5B?
P6SMB150A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150A-M3/5B 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 P6SMB150A-M3/5B?
For technical support, including P6SMB150A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150A-M3/5B requirements.
6.How does Aetrix verify that P6SMB150A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB150A-M3/5B 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 P6SMB150A-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB150A-M3/5B?
All P6SMB150A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150A-M3/5B, 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 P6SMB150A-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB150A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150A-M3/5B Tags
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