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Vishay General Semiconductor - Diodes Division P6SMB250AHE3_A/H
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- Part No.:
- P6SMB250AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250AHE3_A/H.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,503
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Product details
Overview
P6SMB250AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 250 V standoff voltage (VWM), 263 V maximum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It clamps transients to 344 V at 1.74 A peak pulse current and is AEC-Q101 qualified for automotive applications including engine control units and ADAS sensor protection.
For engineers reviewing the P6SMB250AHE3_A/H datasheet, P6SMB250AHE3_A/H pinout, P6SMB250AHE3_A/H application, or P6SMB250AHE3_A/H equivalent, key selection criteria include unidirectional polarity, 214 VWM compliance, 344 V clamping voltage under 1.74 A surge, and AEC-Q101 qualification status - all critical for robust overvoltage protection in high-reliability automotive and industrial power rails.
Technical Context
This TVS diode operates as a unidirectional clamping device with a glass-passivated junction and low incremental surge resistance, enabling fast response to ESD and lightning-induced transients. Its thermal resistance (RθJA = 100 °C/W) and 150 °C max junction temperature support operation in constrained PCB layouts without active cooling.
The device uses a standard SMB (DO-214AA) package with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL level 1 per J-STD-020 with 260 °C reflow peak. Polarity is marked by a cathode band on the unidirectional variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 214 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR (Breakdown Voltage) | 237–263 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 344 V at IPPM = 1.74 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case transient; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy-handling capability under standardized 10/1000 μs waveform; validates surge immunity per IEC 61000-4-5. |
| TJ max | 150 °C - Maximum junction temperature; enables reliable operation in under-hood automotive environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with molded UL 94 V-0 compound and cathode band marking for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference in unidirectional TVS configuration. | Provides return path during clamping; must be routed with low-inductance trace to minimize voltage overshoot. |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 24 V supply rail) via shortest possible path. | Acts as the high-impedance input until breakdown; cathode band identifies this terminal on the physical device. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against severe transients per ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 Level 4 without derating. |
| AEC-Q101 qualification (suffix HE3) | Confirms suitability for automotive powertrain and chassis systems requiring extended temperature and lifetime validation. |
| Glass passivated junction | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives, reducing parameter drift in humid environments. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time), enhancing protection of sensitive gate drivers and microcontrollers. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without preconditioning or special handling requirements. |
Applications
| Automotive Engine Control Unit (ECU) Power Rail | Industrial 24 V PLC Input Protection |
|---|---|
Use Scenario: Protects 24 V supply lines in engine control modules from load dump transients up to 60 V and alternator-induced spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed directly at ECU power entry point, ahead of DC/DC converters and MCU power supplies. Use Value: Limits transient voltage to ≤344 V during 1.74 A surges, preventing latch-up or permanent damage to 36 V-rated regulators and CAN transceivers. |
Use Scenario: Shields digital input terminals of programmable logic controllers from inductive kickback when switching solenoids or contactors. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between field input line and common ground, absorbing repetitive 600 W pulses without degradation. Use Value: Maintains signal integrity by clamping transients within 1 ns, avoiding false triggering of optocouplers and ensuring deterministic input sampling. |
| Telecom Base Station DC Feeder Line | Medical Imaging Power Supply Interface |
Use Scenario: Safeguards -48 V DC power feeds in cellular base stations against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS mounted at cabinet entry point, coordinated with upstream gas discharge tubes. Use Value: Provides precise 214 V standoff and 344 V clamping to avoid nuisance tripping while meeting Telcordia GR-1089-CORE Level 3 surge immunity. |
Use Scenario: Protects high-voltage DC-DC converter inputs in MRI and CT scanner power subsystems from ESD and switching noise. IC Role / Device Role / Timing Role: Secondary-stage TVS on isolated 250 V intermediate bus, supplementing primary MOV-based protection. Use Value: Delivers low-leakage (<1 μA at 214 V) and stable clamping to preserve regulation accuracy and prevent imaging artifacts from voltage perturbations. |
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), identical SMB package, but rated for 400 W PPPM (vs. 600 W); lower clamping voltage (324 V at 1.4 A). | Not AEC-Q101 qualified; suitable for commercial/industrial use only. | Select when cost sensitivity outweighs automotive qualification and higher surge margin is unnecessary. |
| SMCJ250A | Higher-power SMC (DO-214AB) package; same VWM and clamping (344 V), but 1500 W PPPM rating and 2.6 A IPPM. | Larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm); requires PCB layout change. | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 or when longer transient duration demands higher energy absorption. |
Compared with SMAJ250A-E3/5B, P6SMB250AHE3_A/H delivers 50 % higher peak pulse power and automotive qualification; compared with SMCJ250A, it offers identical clamping performance in a 40 % smaller SMB footprint - making it optimal for space-constrained AEC-Q101 designs where 600 W surge margin suffices.
Availability
P6SMB250AHE3_A/H is available at Aetrix Electronics and suitable for automotive engine control units, industrial 24 V PLCs, telecom DC feeder lines, and medical imaging power interfaces requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6SMB250AHE3_A/H 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-energy transient suppression in automotive, industrial, and telecom infrastructure, designed to replace older SMA/SMB families with improved power handling, tighter tolerances, and AEC-Q101-compliant variants.
FAQ
What is the clamping voltage of P6SMB250AHE3_A/H at its rated peak pulse current?
The P6SMB250AHE3_A/H has a maximum clamping voltage (VC) of 344 V when subjected to its specified peak pulse current (IPPM) of 1.74 A under the 10/1000 μs waveform. This value is measured at TA = 25 °C and reflects the upper limit of voltage imposed on the protected circuit during a standardized surge event - a critical parameter for ensuring downstream ICs remain within their absolute maximum ratings. The P6SMB250AHE3_A/H maintains this clamping performance across its qualified operating temperature range.
Is P6SMB250AHE3_A/H suitable for automotive applications?
Yes, P6SMB250AHE3_A/H is explicitly AEC-Q101 qualified, as confirmed by its "HE3" suffix and Vishay's documentation. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev G, making it suitable for under-hood and chassis applications such as engine control units, body control modules, and ADAS sensor interfaces. The P6SMB250AHE3_A/H also meets MSL Level 1 and supports lead-free reflow up to 260 °C.
What does the "_A/H" suffix in P6SMB250AHE3_A/H indicate?
The "_A/H" suffix in P6SMB250AHE3_A/H denotes packaging and revision: "A" specifies the standard revision level per Vishay's document 88370 (Revision 09-Jan-2024), and "H" indicates 7-inch plastic tape-and-reel delivery with 750 units per reel. This ordering code aligns with Vishay's preferred part numbering convention for AEC-Q101 qualified P6SMB devices in SMB packages, distinguishing it from non-automotive variants like E3/M3 and alternate reel sizes (e.g., "I" for 13-inch reels).
How does P6SMB250AHE3_A/H differ from bidirectional TVS diodes in the same series?
P6SMB250AHE3_A/H is unidirectional, meaning it conducts only in reverse breakdown (cathode-to-anode) and blocks forward current - ideal for DC power rail protection where polarity is fixed. Bidirectional variants (e.g., P6SMB250CA) conduct symmetrically in both directions and lack polarity marking; they are used for AC lines or data lines with undefined polarity. The P6SMB250AHE3_A/H features a cathode band for orientation, whereas bidirectional types have no marking. Electrical specs like VWM and VBR differ between unidirectional and bidirectional versions at the same nominal voltage.
What is the thermal resistance of P6SMB250AHE3_A/H, and how does it affect PCB layout?
The P6SMB250AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended copper pads (0.2" × 0.2", or 5.0 mm × 5.0 mm, per terminal). This value implies that at 5.0 W steady-state dissipation, junction temperature would rise ~500 °C above ambient - but since PD is rated at 5.0 W only with infinite heatsink at TA = 50 °C, real-world layout must prioritize thermal relief. For reliable operation, use generous copper pour on both anode and cathode pads, avoid narrow traces, and ensure airflow or proximity to ground planes. The P6SMB250AHE3_A/H's RθJL of 20 °C/W further emphasizes the need for low-thermal-resistance solder joints.
P6SMB250AHE3_A/H 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:
- -
- 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/H FAQ
1.How can I place an order for P6SMB250AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250AHE3_A/H 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/H reliable?
The price and inventory of P6SMB250AHE3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for P6SMB250AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250AHE3_A/H?
P6SMB250AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250AHE3_A/H 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/H?
For technical support, including P6SMB250AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB250AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB250AHE3_A/H 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/H meets industry standards.
7.What is the process for return or replacement of P6SMB250AHE3_A/H?
All P6SMB250AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250AHE3_A/H, 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/H part is unused and in its original packaging.
Return procedure for P6SMB250AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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