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Vishay General Semiconductor - Diodes Division P6SMB250AHM3_D/H
- Part No.:
- P6SMB250AHM3_D/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250AHM3_D/H.pdf
- Description:
- 600W,250V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,450
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Product details
Overview
P6SMB250AHM3_D/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 344 A peak pulse current (IPPM) under 10/1000 μs waveform - designed to protect power rails and signal lines in automotive-grade industrial systems against ESD and lightning-induced transients.
For engineers reviewing the P6SMB250AHM3_D/H datasheet, P6SMB250AHM3_D/H pinout, P6SMB250AHM3_D/H application, or P6SMB250AHM3_D/H equivalent, key selection criteria include its AEC-Q101 qualification, 600 W peak pulse power rating, low clamping voltage of 344 V at IPPM, and halogen-free RoHS-compliant construction with M3 suffix.
Technical Context
This device operates as a unidirectional clamping TVS diode, leveraging a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance. Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit (TJ max = 150 °C) support reliable operation in high-temperature automotive environments.
The P6SMB250AHM3_D/H features a cathode-band polarity marking, conforms to J-STD-020 MSL Level 1, and is qualified per AEC-Q101 for automotive applications - distinguishing it from commercial-grade variants like E3/M3 without HM3 suffixes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 250 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 237–263 V at 1 mA test current - ensures predictable turn-on threshold during transient events. |
| VC (Clamping Voltage) | 344 V at 344 A IPPM - limits voltage seen by protected circuitry during worst-case 10/1000 μs surge. |
| PPPM (Peak Pulse Power) | 600 W - sustains high-energy transients without failure under standardized 10/1000 μs waveform. |
| IFSM (Surge Current) | 100 A - withstands 8.3 ms half-sine surge, critical for inductive load switching protection. |
| TJ max | 150 °C - enables deployment in under-hood automotive modules and industrial power supplies. |
| Package | SMB (DO-214AA) - compact 2-pin SMD footprint (5.59 mm × 4.06 mm) compatible with automated placement and reflow. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1, 260 °C peak reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional configuration. |
| Cathode (marked with band) | Reverse-biased clamping terminal | Connected to protected line (e.g., 24 V supply rail); conducts during overvoltage to shunt energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and ADAS power domains. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for Tier-1 automotive suppliers and industrial OEMs. |
| 600 W peak pulse power (10/1000 μs) | Provides robust immunity against ISO 7637-2 pulse 1, 2a, 3a/b, and IEC 61000-4-5 surge events. |
| Glass passivated junction | Ensures stable leakage performance (<1 μA at VWM) and long-term reliability under thermal cycling. |
| Low RθJL (20 °C/W) | Enables efficient heat transfer from die to PCB copper pads, supporting sustained power dissipation. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs in engine control modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between battery rail and DC-DC converter input. Use Value: Limits voltage to ≤344 V during 100 A+ surges, preventing damage to downstream PMICs and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on differential or single-ended signal lines near connector entry points. Use Value: Clamps sub-100 ns ESD pulses while maintaining signal integrity due to minimal parasitic capacitance. |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Protection |
|
Use Scenario: Safeguarding -48 V telecom rectifier outputs from lightning-induced surges on outdoor cabinet feeds. IC Role / Device Role / Timing Role: Primary-level TVS on bulk DC input, upstream of filtering and regulation stages. Use Value: Absorbs up to 600 W surge energy without degradation, meeting GR-1089-CORE Level 3 requirements. |
Use Scenario: Preventing gate oxide failure in MOSFET/IGBT drivers caused by Miller-induced voltage spikes. IC Role / Device Role / Timing Role: Clamp diode across gate-source terminals or high-side driver supply rail. Use Value: Fast <1 ns response captures fast-rising dv/dt transients before they exceed gate rating (±20 V typical). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ250A-E3/52 | Same VWM/VBR/VC specs but commercial-grade (E3), non-AEC-Q101, no halogen-free assurance. | Limited to non-automotive industrial use; not qualified for under-hood temperature cycling or vibration stress. | Select when cost sensitivity outweighs automotive qualification requirements and full lifecycle traceability. |
| 1.5SMC250AHE3_A/H | Higher package thermal resistance (RθJA = 125 °C/W), same electrical specs, AEC-Q101 qualified (HE3), but larger SMC (DO-214AB) footprint. | Requires PCB layout change; better suited for higher-power derating scenarios where SMB thermal margin is insufficient. | Choose when board space allows larger package and junction temperature margin must exceed 150 °C under sustained surge duty. |
Compared with SMAJ250A-E3/52 and 1.5SMC250AHE3_A/H, the P6SMB250AHM3_D/H uniquely combines AEC-Q101 qualification, halogen-free construction, and SMB footprint - enabling drop-in replacement in space-constrained automotive modules without sacrificing reliability or compliance.
Availability
P6SMB250AHM3_D/H is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface design, and telecom DC input protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6SMB250AHM3_D/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 automotive-grade validation.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for robustness under harsh thermal, mechanical, and electrical stress conditions.
FAQ
What is the clamping voltage of the P6SMB250AHM3_D/H at its rated peak pulse current?
The P6SMB250AHM3_D/H has a maximum clamping voltage (VC) of 344 V at 344 A peak pulse current (IPPM) under the standard 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 worst-case surge events. The P6SMB250AHM3_D/H maintains this clamping performance across its qualified operating temperature range.
Is the P6SMB250AHM3_D/H suitable for automotive applications?
Yes, the P6SMB250AHM3_D/H is AEC-Q101 qualified, as indicated by the "HM3" and "D" suffixes - confirming compliance with stress tests for temperature cycling, humidity, mechanical shock, and high-temperature operating life. It is explicitly intended for automotive power rail and sensor protection, unlike commercial variants such as P6SMB250A-E3/52. The P6SMB250AHM3_D/H meets all required failure rate and qualification thresholds for under-hood deployment.
What does the "HM3" suffix signify in P6SMB250AHM3_D/H?
The "HM3" suffix in P6SMB250AHM3_D/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. "H" indicates 7-inch tape-and-reel packaging (750 units per reel), while "M3" confirms compliance with JEDEC J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance. This distinguishes the P6SMB250AHM3_D/H from E3 (RoHS-only) and HE3 (AEC-Q101 + RoHS) variants, adding halogen-free assurance required by major automotive OEMs.
How does the thermal performance of P6SMB250AHM3_D/H compare to similar SMB-packaged TVS diodes?
The P6SMB250AHM3_D/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W - optimized for mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per datasheet note. This outperforms many generic SMB TVS diodes (typically RθJA > 120 °C/W) and supports higher sustained power dissipation. The P6SMB250AHM3_D/H's thermal design enables reliable operation at TJ = 150 °C in confined automotive enclosures.
Can the P6SMB250AHM3_D/H be used in bidirectional configurations?
No, the P6SMB250AHM3_D/H is a unidirectional TVS diode, as confirmed by its part number structure (no "C" suffix) and datasheet specification - only CA-suffixed variants (e.g., P6SMB250CA) are bidirectional. Using the P6SMB250AHM3_D/H in reverse-biased AC applications would result in forward conduction and potential failure. For bidirectional protection at 250 V, select P6SMB250CHM3_D/H or equivalent.
P6SMB250AHM3_D/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB250AHM3_D/H FAQ
1.How can I place an order for P6SMB250AHM3_D/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250AHM3_D/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 P6SMB250AHM3_D/H reliable?
The price and inventory of P6SMB250AHM3_D/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB250AHM3_D/H is usually 5 days.
3.What payment methods are accepted for P6SMB250AHM3_D/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250AHM3_D/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250AHM3_D/H?
P6SMB250AHM3_D/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250AHM3_D/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 P6SMB250AHM3_D/H?
For technical support, including P6SMB250AHM3_D/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250AHM3_D/H requirements.
6.How does Aetrix verify that P6SMB250AHM3_D/H is sourced from the original manufacturer or authorized distributors?
All P6SMB250AHM3_D/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 P6SMB250AHM3_D/H meets industry standards.
7.What is the process for return or replacement of P6SMB250AHM3_D/H?
All P6SMB250AHM3_D/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250AHM3_D/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 P6SMB250AHM3_D/H part is unused and in its original packaging.
Return procedure for P6SMB250AHM3_D/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB250AHM3_D/H Tags
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