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Vishay General Semiconductor - Diodes Division P6SMB300AHE3_AIH
- Part No.:
- P6SMB300AHE3_AIH
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB300AHE3_AIH.pdf
- Description:
- TVS DIODE 256VWM 414VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,022
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Product details
Overview
P6SMB300AHE3_AIH from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for high-energy surge protection on power and signal lines. It features a 300 V standoff voltage (VWM), 315 V minimum breakdown voltage (VBR), 414 V maximum clamping voltage (VC) at 1.45 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive-grade AEC-Q101-qualified applications such as engine control units and battery management systems.
For engineers reviewing the P6SMB300AHE3_AIH datasheet, P6SMB300AHE3_AIH pinout, P6SMB300AHE3_AIH application, or P6SMB300AHE3_AIH equivalent, this device is selected for robust overvoltage protection where high clamping ratio, low leakage (<1.0 μA at VWM), and stable thermal performance up to +150 °C junction temperature are required in space-constrained SMB (DO-214AA) layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, optimized for transient suppression in DC power rails and low-frequency signal paths. Its glass-passivated junction ensures stable leakage and long-term reliability under repetitive surge stress, while its MSL Level 1 rating supports lead-free reflow up to 260 °C.
The device delivers consistent clamping performance across temperature due to a +0.110 %/°C VBR temperature coefficient and maintains low incremental surge resistance to minimize voltage overshoot during fast transients. Thermal resistance values (RθJA = 100 °C/W, RθJL = 20 °C/W) confirm suitability for PCB-mounted operation without heatsinking under typical derating conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 300 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 285–315 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during surges above rated system voltage. |
| VC (Clamping Voltage) | 414 V at IPPM = 1.45 A - Peak voltage seen by protected circuit during 10/1000 μs transient; critical for IC-level survivability. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability per IEC 61000-4-5 waveform; enables single-event protection against lightning-induced surges. |
| ID (Reverse Leakage) | <1.0 μA at 300 V - Negligible standby current; avoids power loss or false triggering in high-impedance monitoring circuits. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments and industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or lower-potential rail in unidirectional TVS configuration. | Provides low-impedance path to ground during reverse-transient clamping; must be routed with minimal inductance for effective surge shunting. |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., 24 V supply or CAN bus line). | Defines polarity-sensitive placement; band-marked end must face the protected node to ensure correct clamping direction and avoid forward conduction during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including powertrain and body electronics; ensures reliability under temperature cycling, humidity, and mechanical shock per automotive standards. |
| 600 W peak pulse power (10/1000 μs) | Enables protection against severe transients such as ISO 7637-2 Pulse 5a (load dump) without degradation after repeated events. |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage stress on downstream components - e.g., keeps microcontroller I/O pins below absolute maximum ratings during surge events. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free assembly without moisture sensitivity concerns or pre-bake requirements, reducing manufacturing complexity. |
| Glass passivated junction | Delivers stable leakage and breakdown characteristics over time and temperature, critical for long-life deployments in industrial and automotive systems. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 300 V. Use Value: Limits peak voltage to 414 V during 1.45 A transient, preventing damage to voltage regulators and MCU power domains. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure or temperature sensors) in factory automation PLC modules. IC Role / Device Role / Timing Role: Clamping device on 0–10 V or 4–20 mA signal lines exposed to ESD and inductive switching noise. Use Value: Sub-μA leakage preserves signal integrity; fast response time prevents transient coupling into ADC front-end stages. |
| Telecom DC Power Input Protection | Renewable Energy Charge Controller Inputs |
Use Scenario: Shielding PoE-powered equipment inputs from induced surges on outdoor Ethernet cabling. IC Role / Device Role / Timing Role: Primary TVS on 48 V DC input stage upstream of DC/DC converter. Use Value: Withstands 600 W pulses without failure, maintaining system uptime in lightning-prone installations. |
Use Scenario: Overvoltage suppression on PV array input terminals subject to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground on positive input rail. Use Value: High 300 V VWM accommodates nominal 250–350 Vdc PV strings while clamping transients before MPPT controller input stage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ300A | Same VWM (300 V), but lower PPPM (400 W); SMB package identical; no AEC-Q101 qualification. | Limited to commercial-grade industrial or telecom use; not approved for automotive under-hood deployment. | Select when cost sensitivity outweighs automotive qualification needs and surge energy remains ≤400 W. |
| 1.5SMC300A | Higher package thermal mass (SMC/DO-214AB); same VWM/VBR/VC specs; 600 W rating; AEC-Q101 available only in HE3 variant with different suffixing. | Requires larger PCB area (7.11 mm × 6.22 mm vs. 5.59 mm × 4.06 mm); better heat dissipation for sustained surge duty cycles. | Choose when board layout allows larger footprint and thermal performance under repetitive surges is prioritized over size. |
Compared with SMAJ300A and 1.5SMC300A, P6SMB300AHE3_AIH uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and full 600 W capability - making it the preferred choice for space-constrained automotive modules requiring validated reliability and standardized assembly.
Availability
P6SMB300AHE3_AIH is available at Aetrix Electronics and suitable for automotive powertrain systems, industrial sensor interfaces, and renewable energy charge controllers requiring stable component supply with guaranteed AEC-Q101 compliance and traceable sourcing.
Supply support for P6SMB300AHE3_AIH 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, precision, and automotive-grade validation.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where consistent clamping performance and long-term stability are non-negotiable.
FAQ
What is the maximum clamping voltage of the P6SMB300AHE3_AIH under a 10/1000 μs surge?
The P6SMB300AHE3_AIH has a maximum clamping voltage (VC) of 414 V when subjected to its rated peak pulse current of 1.45 A using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P6SMB300AHE3_AIH qualified for automotive applications?
Yes, the P6SMB300AHE3_AIH is AEC-Q101 qualified, as confirmed by its "HE3" suffix and documentation in Vishay's P6SMB series datasheet (Rev. 09-Jan-2024). This qualification covers stress tests including temperature cycling, humidity, mechanical shock, and high-temperature operating life - validating its use in engine control units, battery management systems, and other automotive subsystems.
What does the "_AIH" suffix indicate in P6SMB300AHE3_AIH?
The "_AIH" suffix in P6SMB300AHE3_AIH denotes packaging and revision coding: "A" indicates the standard P6SMB300A variant, "I" specifies 13-inch tape-and-reel delivery (3200 units per reel), and "H" identifies the base packaging format (7-inch reel uses "H", 13-inch uses "I"). The "HE3" portion confirms RoHS-compliant, AEC-Q101-qualified construction per Vishay's ordering nomenclature.
How does the thermal resistance of the P6SMB300AHE3_AIH affect PCB layout?
The P6SMB300AHE3_AIH has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, meaning each watt of dissipated power raises junction temperature by ~100 °C above ambient. To maintain TJ ≤ 150 °C, PCB layout must include minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal as specified in the datasheet - undersized pads risk thermal runaway during repetitive surges.
Can the P6SMB300AHE3_AIH be used in bidirectional configurations?
No, the P6SMB300AHE3_AIH is a unidirectional TVS diode, as indicated by its "A" suffix and absence of "CA" in the part number. Bidirectional variants (e.g., P6SMB300CA) exist in the same series but feature symmetrical clamping in both polarities. Using P6SMB300AHE3_AIH in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or circuit.
P6SMB300AHE3_AIH 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 1.45A
- 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)
P6SMB300AHE3_AIH FAQ
1.How can I place an order for P6SMB300AHE3_AIH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB300AHE3_AIH 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 P6SMB300AHE3_AIH reliable?
The price and inventory of P6SMB300AHE3_AIH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB300AHE3_AIH is usually 5 days.
3.What payment methods are accepted for P6SMB300AHE3_AIH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB300AHE3_AIH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB300AHE3_AIH?
P6SMB300AHE3_AIH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB300AHE3_AIH 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 P6SMB300AHE3_AIH?
For technical support, including P6SMB300AHE3_AIH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB300AHE3_AIH requirements.
6.How does Aetrix verify that P6SMB300AHE3_AIH is sourced from the original manufacturer or authorized distributors?
All P6SMB300AHE3_AIH 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 P6SMB300AHE3_AIH meets industry standards.
7.What is the process for return or replacement of P6SMB300AHE3_AIH?
All P6SMB300AHE3_AIH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB300AHE3_AIH, 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 P6SMB300AHE3_AIH part is unused and in its original packaging.
Return procedure for P6SMB300AHE3_AIH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB300AHE3_AIH Tags
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