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Vishay General Semiconductor - Diodes Division P6SMB150A-E3/52
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- Part No.:
- P6SMB150A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150A-E3/52.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:712
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Product details
Overview
P6SMB150A-E3/52 from Vishay General Semiconductor is a unidirectional 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), 158 V maximum breakdown voltage (VBR), 207 V clamping voltage (VC) at 2.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed to safeguard MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD events.
For engineers reviewing the P6SMB150A-E3/52 datasheet, P6SMB150A-E3/52 pinout, P6SMB150A-E3/52 application, or P6SMB150A-E3/52 equivalent, key selection criteria include its unidirectional polarity, SMB (DO-214AA) package compatibility, 100 °C/W junction-to-ambient thermal resistance, AEC-Q101 qualification eligibility (via HE3/HM3 variants), and compliance with J-STD-020 MSL Level 1 reflow profile.
Technical Context
The P6SMB150A-E3/52 operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to limit transient overvoltages before downstream components are stressed. Its unidirectional configuration enables integration into DC-biased lines where reverse conduction must be blocked during normal operation.
Rated for 150 °C maximum junction temperature and 100 A non-repetitive forward surge current (IFSM), it supports high-energy transient suppression in automotive, industrial, and telecom power rails. Thermal performance is defined by RθJA = 100 °C/W on standard 0.2" × 0.2" copper pads, with derating applied above TA = 25 °C per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 143–158 V at 1 mA test current - Confirmed avalanche initiation range; ensures predictable turn-on under transient stress. |
| VC (Clamping Voltage) | 207 V at 2.9 A IPPM - Peak voltage seen by protected circuit during 600 W transient; critical for IC voltage tolerance margining. |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 μs waveform - Sustains high-energy surges common in automotive load-dump or inductive switch-off events. |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Negligible standby current; avoids power loss or false triggering in low-power sensor circuits. |
| TJ max | 150 °C - Enables reliable operation in under-hood automotive or enclosed industrial enclosures without active cooling. |
| RθJA | 100 °C/W - Thermal resistance measured on 0.2" × 0.2" copper pads; informs PCB layout requirements for thermal management. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by band marking; RoHS-compliant (E3 suffix), commercial grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side of protected line (e.g., ground or return path); defines unidirectional conduction direction. |
| Cathode | Avalanche clamping node / High-side connection | Connected to higher-potential side (e.g., supply rail or signal line); conducts transient current to ground when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients typical in automotive load-dump (ISO 7637-2) and industrial motor drive switching without failure. |
| Glass passivated chip junction | Ensures stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or pre-bake requirements. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection fidelity for sensitive logic inputs. |
| RoHS-compliant, halogen-free option available | E3 suffix meets global environmental regulations; M3 suffix adds halogen-free compliance for stringent industrial or automotive programs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules from ISO 7637-2 pulse 1 (inductive switch-off) and pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and chassis ground to clamp transients before they reach PMICs or microcontrollers. Use Value: Clamps to 207 V at 2.9 A, ensuring downstream 36 V-rated regulators and 5 V LDOs remain within absolute maximum ratings during 100 V+ load-dump events. |
Use Scenario: Shielding analog and digital outputs of pressure, temperature, or position sensors in factory automation systems from EFT and surge coupling via long cables. IC Role / Device Role / Timing Role: Point-of-entry TVS on sensor output lines (e.g., 4–20 mA or CAN PHY) to absorb coupled noise before signal conditioning circuitry. Use Value: Sub-1 ns response and 1.0 μA leakage preserve signal integrity and offset accuracy while surviving 4 kV EFT bursts per IEC 61000-4-4. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: Safeguarding PoE-powered switches and base station RF modules from lightning-induced surges entering via 48 V DC input ports. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converters and hot-swap controllers on telecom power distribution boards. Use Value: 600 W rating and 207 V clamping enable compliance with IEC 61000-4-5 Level 4 (4 kV line-earth) without cascaded protection stages. |
Use Scenario: Preventing damage to USB-C PD controller ICs and GaN FETs in compact AC/DC adapters subjected to mains-borne surges and user-handling ESD. IC Role / Device Role / Timing Role: Secondary-side TVS on regulated 20 V output rail to suppress ringing and cross-talk from fast-switching GaN stages. Use Value: SMB footprint allows placement near connectors; 128 V VWM provides 20 % margin above 20 V PD profile while enabling tight VC-based system-level coordination. |
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 | Same VWM (128 V), identical SMB package, but lower PPPM (400 W) and higher VC (243 V at 2.5 A). | Limited to lower-energy transients; unsuitable for automotive load-dump or telecom surge testing requiring 600 W. | Select SMAJ150A only for cost-sensitive consumer applications where 400 W rating suffices and board space constraints match SMB footprint. |
| 1.5SMC150A | Higher power rating (1500 W), larger SMC (DO-214AB) package, same VWM/VC specs, but requires 30 % more PCB area. | Used where system-level surge immunity exceeds 600 W (e.g., industrial motor drives with >100 A inductive loads). | Choose 1.5SMC150A when higher energy handling is mandatory and SMC layout is acceptable; not drop-in compatible due to larger body and lead spacing. |
Compared with SMAJ150A and 1.5SMC150A, P6SMB150A-E3/52 delivers optimal balance of 600 W surge capability, SMB footprint efficiency, and 207 V clamping performance - making it the preferred choice for space-constrained automotive and telecom designs requiring certified transient immunity without layout redesign.
Availability
P6SMB150A-E3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supplies requiring stable component supply, RoHS compliance, and consistent surge performance across production batches.
Supply support for P6SMB150A-E3/52 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, power handling, and automotive-grade qualification.
The P6SMB Series is engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness against ESD, EFT, and surge events is mission-critical.
FAQ
What is the clamping voltage of P6SMB150A-E3/52 and how is it measured?
The clamping voltage (VC) of P6SMB150A-E3/52 is 207 V, measured at a peak pulse current (IPPM) of 2.9 A using a 10/1000 μs double-exponential waveform per IEC 61000-4-5. This value represents the maximum voltage imposed on the protected circuit during transient suppression and is confirmed in the Electrical Characteristics table of Vishay document 88370. The P6SMB150A-E3/52 maintains this clamping performance across its specified operating temperature range.
Is P6SMB150A-E3/52 suitable for automotive applications?
Yes, P6SMB150A-E3/52 is qualified per AEC-Q101 when ordered with HE3 or HM3 suffixes (e.g., P6SMB150AHE3_B). While the E3/52 variant itself is commercial-grade, its construction - including glass-passivated junction, MSL Level 1 rating, and 150 °C TJ max - aligns with automotive under-hood thermal and reliability requirements. Designers should specify HE3/HM3 versions for production automotive use; the P6SMB150A-E3/52 serves as a direct form-fit-function evaluation part.
What is the thermal resistance of P6SMB150A-E3/52 and how does it affect PCB layout?
The P6SMB150A-E3/52 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 minimal copper area; increasing pad size or adding thermal vias reduces RθJA and improves surge endurance. For sustained power dissipation or repeated transients, PCB layout must allocate adequate copper area to avoid exceeding 150 °C junction temperature - a key design constraint verified using the derating curve in Figure 2 of the P6SMB150A-E3/52 datasheet.
How does the unidirectional configuration of P6SMB150A-E3/52 impact circuit integration?
The unidirectional configuration of P6SMB150A-E3/52 means it conducts only during reverse-biased overvoltage events - blocking current in forward bias during normal operation. This makes it ideal for DC power rails (e.g., +12 V or +48 V) where polarity is fixed and reverse conduction must be prevented. The cathode band must be oriented toward the higher-potential node; incorrect orientation renders the device ineffective. Unlike bidirectional variants (e.g., P6SMB150CA), the P6SMB150A-E3/52 cannot protect AC or floating signal lines without additional biasing.
What packaging and reel options are available for P6SMB150A-E3/52?
P6SMB150A-E3/52 is supplied in 7" diameter plastic tape and reel format with a base quantity of 750 units per reel (ordering code suffix /52). The device uses industry-standard SMB (DO-214AA) packaging with matte tin-plated leads, compliant with J-STD-002 solderability and JESD 22-B102 mechanical finish requirements. Tape-and-reel packaging supports automated SMT placement and is compatible with standard pick-and-place equipment used in high-volume electronics manufacturing.
P6SMB150A-E3/52 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:
- 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-E3/52 FAQ
1.How can I place an order for P6SMB150A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150A-E3/52 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-E3/52 reliable?
The price and inventory of P6SMB150A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB150A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB150A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150A-E3/52?
P6SMB150A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150A-E3/52 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-E3/52?
For technical support, including P6SMB150A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150A-E3/52 requirements.
6.How does Aetrix verify that P6SMB150A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB150A-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB150A-E3/52?
All P6SMB150A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150A-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB150A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150A-E3/52 Tags
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