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Vishay General Semiconductor - Diodes Division P6SMB250AHE3_A/I
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- Part No.:
- P6SMB250AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250AHE3_A/I.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,194
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Product details
Overview
P6SMB250AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection with 250 V standoff voltage (VWM), 237–263 V breakdown voltage (VBR) at 1 mA, and 344 V clamping voltage (VC) at 1.74 A peak pulse current (IPPM). It delivers 600 W peak pulse power (10/1000 μs waveform) and is AEC-Q101 qualified for automotive-grade reliability in power rail and signal line protection.
For engineers reviewing the P6SMB250AHE3_A/I datasheet, P6SMB250AHE3_A/I pinout, P6SMB250AHE3_A/I application, or P6SMB250AHE3_A/I equivalent, this device is selected for robust overvoltage suppression in DC power supplies, automotive ECUs, industrial sensor interfaces, and telecom front-end circuits where precise clamping, low leakage (<1 μA at VWM), and MSL Level 1 solderability are required.
Technical Context
This TVS operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified breakdown threshold (VBR = 237–263 V), then clamping transient energy to VC = 344 V at IPPM = 1.74 A. Its glass-passivated junction ensures stable performance across -65 °C to +150 °C operating temperature range.
It features low incremental surge resistance, fast response time (<1 ns), and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. The cathode band identifies polarity, and it is rated for 100 A non-repetitive forward surge (IFSM) - critical for handling inductive kickback in automotive and industrial switching environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 237–263 V at IT = 1 mA - Precise avalanche initiation range; ensures consistent turn-on behavior across production lots. |
| VC (Clamping Voltage) | 344 V at IPPM = 1.74 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress level. |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity under standardized 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 compliance with proper layout. |
| ID (Reverse Leakage) | <1 μA at VWM = 214 V - Minimal standby power loss and signal integrity impact in high-impedance sensing or bias networks. |
| TJ max. | +150 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without derating at full power. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs heatsinking requirements for repetitive surge duty. |
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. Cathode identified by molded band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., +12 V rail); conducts surge current to ground when VREV > VBR. |
| Anode (unbanded end) | Reference / return path | Typically tied to system ground or low-impedance return; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power domains per stress test requirements. |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-to-ground) with appropriate PCB layout and series impedance. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during transients, reducing risk of damage to downstream MOSFETs or ICs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply lines in body control modules against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before they reach DC/DC converters or microcontrollers. Use Value: Withstand 600 W pulses while limiting voltage to ≤344 V, preserving 36 V-rated downstream components and meeting OEM EMC requirements. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O (CAN, RS-485) in PLC analog modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal lines to absorb induced lightning or ESD transients without affecting normal 0–10 V or current-loop operation. Use Value: Sub-1 μA leakage at 214 V ensures no loading of high-impedance sensor outputs; fast response prevents latch-up in interface ICs. |
| Telecom DC Power Input Protection | Renewable Energy Inverter DC Link Protection |
|
Use Scenario: Front-end protection of PoE-powered equipment (e.g., IP cameras, wireless access points) against AC/DC adapter transients and Ethernet-coupled surges. IC Role / Device Role / Timing Role: Primary TVS on 48 V input rail upstream of primary DC/DC stage, coordinated with fuse and common-mode choke. Use Value: 214 V VWM provides sufficient margin above nominal 48 V (with ripple), while 344 V VC avoids overstressing 60 V-rated MOSFETs in secondary regulation. |
Use Scenario: Clamping voltage spikes on PV string inputs or battery-side DC links in solar microinverters and energy storage systems. IC Role / Device Role / Timing Role: Parallel-connected TVS on high-voltage DC bus (e.g., 200–400 V range) to suppress switching transients from IGBT/MOSFET commutation. Use Value: 250 V rating aligns with mid-range PV string voltages; 600 W capability handles repetitive switching energy without degradation. |
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-E3/5B | Same VWM (214 V), VC = 344 V, but lower PPPM = 400 W; SMA package (DO-214AC), smaller footprint and higher RθJA (150 °C/W). | Less suitable for high-duty-cycle or high-ambient-temperature environments; requires larger copper area for thermal management. | Select when board space is constrained and surge energy is limited to ≤400 W (e.g., consumer-grade power adapters). |
| 1.5SMC250A | Same electrical specs (VWM = 214 V, VC = 344 V, PPPM = 600 W), but SMC (DO-214AB) package - larger size, lower RθJA (75 °C/W), higher IFSM (200 A). | Better thermal performance and surge endurance; not drop-in compatible due to larger outline and different pad layout. | Choose for industrial motor drives or EV charging modules requiring enhanced thermal margin and higher forward surge tolerance. |
Compared with SMAJ250A-E3/5B, P6SMB250AHE3_A/I offers 50 % higher surge power handling and superior thermal dissipation in the same SMB footprint; versus 1.5SMC250A, it saves board area while maintaining identical clamping performance - making it optimal for space-constrained automotive and telecom designs.
Availability
P6SMB250AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and telecom DC power input stages requiring stable component supply, AEC-Q101 qualification, and consistent surge performance across production batches.
Supply support for P6SMB250AHE3_A/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and RoHS-compliant variants.
FAQ
What is the maximum clamping voltage of the P6SMB250AHE3_A/I under a 10/1000 μs surge?
The P6SMB250AHE3_A/I has a maximum clamping voltage (VC) of 344 V when subjected to its rated peak pulse current of 1.74 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay's Document Number 88370 and defines the upper voltage limit imposed on protected circuitry during transient events. Designers use this parameter to verify that downstream components remain within their absolute maximum ratings during surge conditions.
Is the P6SMB250AHE3_A/I suitable for automotive applications?
Yes, the P6SMB250AHE3_A/I is AEC-Q101 qualified, as indicated by the "HE3" suffix and confirmed in Vishay's ordering information table (page 3, footnote 2). It is specifically rated for automotive use in environments requiring robust surge immunity, such as engine control units, body electronics, and ADAS power domains. Its MSL Level 1 rating and guaranteed operation from -65 °C to +150 °C further validate its suitability for under-hood and chassis-mounted applications.
What does the "_A/I" suffix mean in P6SMB250AHE3_A/I?
The "_A/I" suffix in P6SMB250AHE3_A/I denotes packaging configuration: "A" indicates the base part is unidirectional, and "I" specifies 13-inch diameter plastic tape-and-reel delivery with 3200 units per reel. This format is optimized for high-volume automated SMT placement. The "HE3" portion confirms RoHS-compliance and AEC-Q101 qualification, distinguishing it from commercial-grade "E3" variants.
How does the P6SMB250AHE3_A/I compare to bidirectional TVS diodes?
The P6SMB250AHE3_A/I is unidirectional and must be oriented with cathode toward the protected line - unlike bidirectional types (e.g., P6SMB250CA), which protect both polarities without polarity concern. Its unidirectional design allows tighter VBR tolerance and lower leakage, making it preferred for DC power rail protection where polarity is fixed and leakage sensitivity is critical, such as in precision sensor bias networks or low-power standby circuits.
What is the thermal resistance and how does it affect layout for the P6SMB250AHE3_A/I?
The P6SMB250AHE3_A/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, as defined in Vishay's datasheet. To maintain reliability under repetitive surges, designers must provide adequate copper area and consider thermal vias - especially since its 600 W peak power is only sustainable for short durations. Exceeding TJ = 150 °C risks parametric shift or failure.
P6SMB250AHE3_A/I 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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB250AHE3_A/I FAQ
1.How can I place an order for P6SMB250AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250AHE3_A/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 P6SMB250AHE3_A/I reliable?
The price and inventory of P6SMB250AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB250AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB250AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250AHE3_A/I?
P6SMB250AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250AHE3_A/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 P6SMB250AHE3_A/I?
For technical support, including P6SMB250AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB250AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB250AHE3_A/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 P6SMB250AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB250AHE3_A/I?
All P6SMB250AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250AHE3_A/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 P6SMB250AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB250AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB250AHE3_A/I Tags
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