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Vishay General Semiconductor - Diodes Division P6SMB250A-E3/52
- Part No.:
- P6SMB250A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250A-E3/52.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB250A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 250 V standoff voltage (VWM), 237–263 V breakdown voltage (VBR) at 1 mA, 344 V maximum clamping voltage (VC) at 1.74 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in industrial motor drives, telecom power supplies, and automotive ECU input protection.
For engineers reviewing the P6SMB250A-E3/52 datasheet, P6SMB250A-E3/52 pinout, P6SMB250A-E3/52 application, or P6SMB250A-E3/52 equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, clamping performance under transient stress, thermal derating behavior, and AEC-Q101-qualified alternatives for automotive-grade designs.
Technical Context
This TVS diode operates as a unidirectional clamping device, conducting only during reverse overvoltage events while remaining high-impedance under normal bias. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 μA at 214 V), critical for high-impedance sensor interfaces and standby-power-sensitive systems.
The device uses a low-inductance SMB (DO-214AA) package with matte tin-plated leads, rated for 260 °C reflow per J-STD-020 MSL Level 1. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation up to TJ = 150 °C when mounted on 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - Maximum continuous reverse voltage before significant conduction; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 237–263 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 344 V at IPPM = 1.74 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID (Reverse Leakage) | <1 μA at VWM = 214 V - Minimal standby current draw; preserves battery life and avoids false triggering in high-impedance nodes. |
| TJ max. | 150 °C - Maximum junction temperature; sets thermal design limits for PCB copper area and ambient operating conditions. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" pads; used to calculate temperature rise under DC power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-banded end is opposite) | Connected to system ground or lower-potential rail; defines polarity for unidirectional clamping action. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line (e.g., 24 V supply rail); conducts during overvoltage to shunt surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validated surge handling for industrial-level lightning-induced transients per IEC 61000-4-5. |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ratio = 1.45), reducing voltage overshoot on sensitive ICs. |
| Glass passivated chip junction | Ensures long-term parameter stability and reduced parameter drift across temperature and lifetime. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow. |
| AEC-Q101 qualified variant available | P6SMB250AHM3_D/H supports automotive applications requiring qualification per JESD22-A108. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 24 V DC control inputs against inductive kickback from relay coils and contactor switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input line and chassis ground to clamp transients before reaching microcontroller GPIO or optocoupler inputs. Use Value: Limits voltage excursion to ≤344 V during 1.74 A surge, preventing latch-up or gate oxide damage in downstream logic. |
Use Scenario: Input-stage surge suppression on -48 V telecom rectifier outputs exposed to lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary clamping device on DC output bus, coordinated with upstream MOVs and filtering to meet GR-1089-CORE Level 4 requirements. Use Value: Absorbs 600 W transient energy without degradation, maintaining regulation integrity during repeated surge events. |
| Automotive Body Control Modules | Medical Diagnostic Equipment |
Use Scenario: CAN bus power rail protection in BCMs subjected to load dump pulses (ISO 7637-2 Pulse 5a) up to 60 V for 400 ms. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary regulator, safeguarding 5 V/3.3 V LDOs and CAN transceivers. Use Value: Withstands repetitive 10/1000 μs surges at 0.01% duty cycle, supporting AEC-Q101-compliant variants for functional safety compliance. |
Use Scenario: ESD and surge protection on analog front-end sensor inputs (e.g., pressure, temperature) in portable ultrasound units. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) TVS placed directly at connector interface to preserve signal integrity and minimize offset error. Use Value: Clamps fast transients (response time <1 ns) while adding negligible capacitance (<100 pF), avoiding signal distortion in kHz-range sensor signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ250A | Same VWM (214 V), identical SMB package, but lower PPPM (400 W) and higher VC (358 V at 1.5 A). | Limited to lower-energy transients; not suitable for IEC 61000-4-5 Level 4 without parallel staging. | Select when cost sensitivity outweighs peak power margin and layout space allows supplemental clamping. |
| P6SMB250AHM3_D/H | Identical electrical specs, halogen-free, RoHS-compliant, and AEC-Q101 qualified; same SMB package, different tape/reel packaging (7" reel, H code). | Required for automotive production where qualification traceability and material compliance are mandatory. | Choose for OEM automotive programs needing full PPAP documentation and extended temperature validation. |
Compared with P6SMB250A-E3/52, SMAJ250A offers lower surge capacity and less stringent clamping, while P6SMB250AHM3_D/H delivers identical protection performance with certified automotive reliability - making the latter essential for safety-critical vehicle subsystems.
Availability
P6SMB250A-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, RoHS-compliant sourcing, and consistent parametric performance across production lots.
Supply support for P6SMB250A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and high-power handling.
The P6SMB Series targets high-energy transient suppression in harsh environments, engineered for robustness in industrial automation, telecom infrastructure, and automotive electronics where failure modes must be tightly controlled.
FAQ
What is the maximum clamping voltage of the P6SMB250A-E3/52 under a 10/1000 μs surge?
The P6SMB250A-E3/52 has a maximum clamping voltage (VC) of 344 V when subjected to a 1.74 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB250A-E3/52 maintains this clamping performance across its specified operating temperature range.
Is the P6SMB250A-E3/52 suitable for automotive applications?
The P6SMB250A-E3/52 itself is a commercial-grade part (RoHS-compliant, MSL Level 1), but Vishay offers the functionally identical P6SMB250AHM3_D/H variant that is AEC-Q101 qualified, halogen-free, and approved for automotive use. Engineers designing for automotive ECUs should specify the HM3_D/H version to meet qualification requirements; the P6SMB250A-E3/52 remains appropriate for non-automotive industrial or telecom applications.
What is the standoff voltage rating of the P6SMB250A-E3/52?
The P6SMB250A-E3/52 has a maximum reverse stand-off voltage (VWM) of 214 V, meaning it remains in high-impedance blocking mode for any applied reverse voltage up to this level. This rating provides a safe operating margin below the 237–263 V breakdown range (VBR) and ensures minimal leakage (<1 μA) during normal operation - critical for preserving signal integrity and power efficiency in high-impedance circuits.
Does the P6SMB250A-E3/52 have polarity marking, and how is it identified?
Yes, the P6SMB250A-E3/52 is a unidirectional TVS diode and features a cathode band marking on the SMB (DO-214AA) package body. The banded end corresponds to the cathode terminal, which must be connected to the line being protected (e.g., 24 V rail), while the anode connects to ground. This polarity is essential for correct clamping behavior; reverse connection would prevent proper surge suppression.
What thermal derating applies to the P6SMB250A-E3/52 above 25 °C ambient?
The P6SMB250A-E3/52 exhibits linear thermal derating above TA = 25 °C: its peak pulse power (PPPM) decreases by approximately 0.6% per °C rise, based on the RθJA = 100 °C/W specification. At 75 °C ambient, PPPM drops to ~300 W; at 125 °C, it falls below 100 W. Derating curves are provided in Figure 2 of the Vishay datasheet (Doc. #88370), and actual performance depends on PCB copper area and airflow - the P6SMB250A-E3/52 requires careful thermal layout for sustained surge duty.
P6SMB250A-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 214V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 1.74A
- 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 (SMB)
P6SMB250A-E3/52 FAQ
1.How can I place an order for P6SMB250A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250A-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 P6SMB250A-E3/52 reliable?
The price and inventory of P6SMB250A-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 P6SMB250A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB250A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250A-E3/52?
P6SMB250A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250A-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 P6SMB250A-E3/52?
For technical support, including P6SMB250A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250A-E3/52 requirements.
6.How does Aetrix verify that P6SMB250A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB250A-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 P6SMB250A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB250A-E3/52?
All P6SMB250A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250A-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 P6SMB250A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB250A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB250A-E3/52 Tags
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