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Vishay General Semiconductor - Diodes Division P6SMB250AHM3_C/H
- Part No.:
- P6SMB250AHM3_C/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB250AHM3_C/H.pdf
- Description:
- TVS DIODE 214VWM 344VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB250AHM3_C/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power rails and signal lines. It features a 250 V standoff voltage (VWM), 263 V minimum breakdown voltage (VBR), 344 V maximum clamping voltage (VC) at 1.74 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive-grade power supply protection and industrial sensor interface circuits.
For engineers reviewing the P6SMB250AHM3_C/H datasheet, P6SMB250AHM3_C/H pinout, P6SMB250AHM3_C/H application, or P6SMB250AHM3_C/H equivalent, key selection criteria include its AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and unidirectional polarity with cathode band marking - critical for ESD/surge hardening of 24 V–48 V DC systems.
Technical Context
This TVS diode operates as a clamping device that transitions from high-impedance standby to low-impedance conduction when transient voltage exceeds VBR (237–263 V). Its glass-passivated junction ensures stable leakage (<1 μA at 214 V) and fast response time (<1.0 ns), enabling protection against inductive switching spikes and lightning-induced surges on DC power inputs.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads, it delivers 600 W peak pulse power under 0.01% duty cycle conditions and supports repetitive surge events up to TJ = 150 °C. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification per revision D - validated for automotive power electronics and industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 214 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 24 V/48 V systems. |
| VBR (Breakdown) | 237–263 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients without premature conduction. |
| VC (Clamping) | 344 V at IPPM = 1.74 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component voltage stress. |
| PPPM | 600 W - Sustained surge energy handling capability with 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and sealed industrial enclosures. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; requires minimum 0.2" × 0.2" copper pad per terminal for rated power dissipation. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 2.2 mm height and 3.94 mm length; compatible with automated pick-and-place and reflow profiles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker test requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during positive transients on cathode side. |
| Cathode | High-side connection point | Connected to protected line (e.g., +24 V rail); conducts surge current to ground when VIN > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive power electronics including body control modules and ADAS power supplies. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and transportation equipment. |
| Glass passivated junction | Ensures stable leakage current (<1 μA at VWM) and long-term reliability under thermal cycling. |
| Halogen-free & RoHS-compliant | Complies with EU Directive 2011/65/EU and IPC-1752A material declaration standards. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without moisture sensitivity concerns or baking requirements. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery input and DC-DC converter input stage. Use Value: Limits transient voltage to ≤344 V, preventing damage to downstream regulators and microcontrollers rated for 36 V absolute maximum. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair (e.g., RS-485 bus lines). Use Value: Clamps sub-100 ns ESD pulses to <350 V while maintaining signal integrity due to minimal junction capacitance (<100 pF at 0 V). |
| Telecom DC Power Input | Renewable Energy Controller |
Use Scenario: Safeguarding 48 V telecom rectifier outputs against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main DC distribution bus upstream of backup batteries and converters. Use Value: Absorbs 600 W surge energy without degradation, ensuring uninterrupted operation during Category B/C surge events per ITU-T K.20. |
Use Scenario: Protecting solar charge controller inputs from induced surges caused by nearby lightning strikes on PV array wiring. IC Role / Device Role / Timing Role: Front-end TVS on MPPT input stage, coordinated with MOV and gas discharge tube for staged protection. Use Value: Fast clamping action (<1 ns) prevents voltage overshoot beyond 344 V, preserving MOSFET gate oxide integrity in high-side switches. |
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/VBR/VC specs but SMA package (smaller footprint, higher RθJA = 140 °C/W); not AEC-Q101 qualified. | Limited to commercial-grade consumer/industrial use; unsuitable for automotive under-hood deployment. | Select when board space is constrained and automotive qualification is unnecessary. |
| 1.5SMC250AHE3_A/H | Same electrical specs but SMC (DO-214AB) package (larger, lower RθJA = 65 °C/W); AEC-Q101 qualified with HE3 suffix. | Better thermal performance allows higher surge repetition rates; requires larger PCB area. | Choose when thermal management is critical and layout space permits larger SMC footprint. |
Compared with SMAJ250A-E3/5B and 1.5SMC250AHE3_A/H, P6SMB250AHM3_C/H uniquely balances AEC-Q101 qualification, halogen-free compliance, and SMB footprint - making it optimal for space-constrained automotive modules requiring validated reliability without thermal derating penalties.
Availability
P6SMB250AHM3_C/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P6SMB250AHM3_C/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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for robust clamping performance, AEC-Q101 compliance, and compatibility with automated manufacturing processes.
FAQ
What is the clamping voltage of P6SMB250AHM3_C/H at its rated peak pulse current?
The P6SMB250AHM3_C/H has a maximum clamping voltage (VC) of 344 V at its rated peak pulse current (IPPM) of 1.74 A, measured using a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet Document Number 88370, page 2. The P6SMB250AHM3_C/H maintains this clamping performance across its operational temperature range of -65 °C to +150 °C.
Is P6SMB250AHM3_C/H qualified for automotive applications?
Yes, P6SMB250AHM3_C/H is AEC-Q101 qualified, as indicated by the "HM3" suffix and documented in the ordering information table (page 3 of datasheet 88370), where "_D" denotes AEC-Q101 qualification for P6SMB250A to P6SMB540A variants. The HM3 variant also meets halogen-free and RoHS-compliant requirements, making P6SMB250AHM3_C/H suitable for under-hood and chassis-mounted automotive electronics subject to rigorous environmental stress testing.
What does the "C/H" suffix in P6SMB250AHM3_C/H signify?
The "C/H" suffix in P6SMB250AHM3_C/H indicates packaging configuration: "C" denotes tape-and-reel delivery in 7-inch diameter reels, and "H" specifies the reel quantity of 750 units per reel. This aligns with Vishay's ordering convention shown in the "ORDERING INFORMATION" section (page 3 of datasheet 88370), where "H" corresponds to 750-unit reels and "I" to 3200-unit reels. The full part number P6SMB250AHM3_C/H thus identifies an AEC-Q101, halogen-free, 750-unit tape-and-reel variant of the P6SMB250A TVS diode.
What is the thermal resistance of P6SMB250AHM3_C/H, and how does it affect layout design?
P6SMB250AHM3_C/H 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 specified in the "THERMAL CHARACTERISTICS" table (page 3 of datasheet 88370). This value mandates adherence to the recommended pad layout to sustain its 600 W peak pulse rating; reducing pad size increases thermal impedance and risks junction overheating during repetitive surges. Layouts must replicate the 0.2" × 0.2" copper area for each terminal to ensure P6SMB250AHM3_C/H performs within datasheet limits.
How does P6SMB250AHM3_C/H differ from bidirectional TVS diodes in the same series?
P6SMB250AHM3_C/H is unidirectional, meaning it conducts only during reverse-biased overvoltage events and blocks forward current - ideal for DC power line protection where polarity is fixed. Bidirectional variants (e.g., P6SMB250CA) conduct in both directions and are used for AC or differential signal lines. The P6SMB250AHM3_C/H datasheet explicitly lists VWM, VBR, and VC values for unidirectional operation only, with no bidirectional parameters provided, confirming its single-polarity design and cathode-band marking requirement.
P6SMB250AHM3_C/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 (SMB)
P6SMB250AHM3_C/H FAQ
1.How can I place an order for P6SMB250AHM3_C/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB250AHM3_C/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_C/H reliable?
The price and inventory of P6SMB250AHM3_C/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_C/H is usually 5 days.
3.What payment methods are accepted for P6SMB250AHM3_C/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB250AHM3_C/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB250AHM3_C/H?
P6SMB250AHM3_C/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB250AHM3_C/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_C/H?
For technical support, including P6SMB250AHM3_C/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB250AHM3_C/H requirements.
6.How does Aetrix verify that P6SMB250AHM3_C/H is sourced from the original manufacturer or authorized distributors?
All P6SMB250AHM3_C/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_C/H meets industry standards.
7.What is the process for return or replacement of P6SMB250AHM3_C/H?
All P6SMB250AHM3_C/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB250AHM3_C/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_C/H part is unused and in its original packaging.
Return procedure for P6SMB250AHM3_C/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB250AHM3_C/H Tags
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