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Vishay General Semiconductor - Diodes Division P6SMB300AHE3_A/H
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- Part No.:
- P6SMB300AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB300AHE3_A/H.pdf
- Description:
- TVS DIODE 256VWM 414VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,461
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Product details
Overview
P6SMB300AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 300 V standoff voltage (VWM), 344 V clamping voltage (VC) at 1.45 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects power rails and signal lines in industrial motor drives and automotive ECUs against ESD and inductive switching transients.
For engineers reviewing the P6SMB300AHE3_A/H datasheet, P6SMB300AHE3_A/H pinout, P6SMB300AHE3_A/H application, or P6SMB300AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 300 V VWM tolerance, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant matte tin-plated leads solderable per J-STD-002.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 300 V reverse standoff voltage (VWM) and transitions rapidly to low-impedance conduction above its 315 V minimum breakdown voltage (VBR), limiting transient energy to safe levels. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns).
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient, with 100 A IFSM surge capability (8.3 ms half-sine) and MSL Level 1 moisture sensitivity. It meets UL 94 V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 300 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown) | 285–315 V at 1 mA - Confirmed avalanche onset range defining reliable turn-on threshold |
| VC (Clamping) | 414 V at IPPM = 1.45 A - Peak voltage seen by protected circuit during 10/1000 μs transient |
| PPPM | 600 W - Sustains 10/1000 μs surge without failure; duty cycle limited to 0.01 % |
| ID (Leakage) | <1.0 μA at 300 V - Negligible standby power loss and minimal impact on high-impedance circuits |
| TJ max. | +150 °C - Enables operation in under-hood automotive and industrial environments |
| RθJA | 100 °C/W - Thermal performance baseline for PCB pad layout design (0.2" × 0.2" copper) |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when V > VBR |
| Anode (unmarked end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Stable electrical parameters over lifetime; immune to humidity-induced parameter drift |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) in properly designed layouts |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a) |
Applications
| Industrial Motor Drives | Automotive Engine Control Units |
|---|---|
Use Scenario: Protection of 24 V DC bus against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed across bus input to clamp transients up to ±1 kV. Use Value: Limits voltage excursion to ≤414 V, preventing damage to downstream DC-DC converters and microcontrollers. |
Use Scenario: Safeguarding CAN transceiver supply pins from load dump and jump-start events. IC Role / Device Role / Timing Role: Standoff-rated clamping device on 12 V rail upstream of LDO regulators. Use Value: Survives 12 V system load dump (ISO 16750-2) with <1.0 μA leakage preserving battery drain budget. |
| Telecom Power Supplies | Industrial PLC I/O Modules |
Use Scenario: Input-stage protection for AC/DC adapters exposed to lightning-induced surges on primary side. IC Role / Device Role / Timing Role: Secondary-side TVS on rectified DC output to suppress coupling from primary transients. Use Value: Clamps 600 W pulses without degradation, maintaining 300 V VWM margin over nominal 277 VAC-derived rails. |
Use Scenario: Field-side analog input protection against wiring faults and ESD in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage unidirectional suppressor on 4–20 mA loop inputs. Use Value: Adds <1.0 μA error at full scale while enabling IEC 61000-4-2 ±8 kV contact discharge immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ300A-E3/52 | Same VWM/VBR/VC ratings but non-AEC-Q101; SMA package (higher RθJA = 120 °C/W) | Limited to commercial-grade industrial use; not qualified for automotive under-hood deployment | Select when AEC-Q101 is unnecessary and cost optimization is prioritized over thermal margin |
| 1.5SMC300A | Higher PPPM (1500 W), larger SMC package, higher leakage (5.0 μA), no AEC-Q101 qualification | Better suited for high-energy surge zones (e.g., AC mains entry); incompatible with space-constrained SMB layouts | Choose only if board area allows SMC footprint and system requires >600 W surge handling |
Compared with SMAJ300A-E3/52 and 1.5SMC300A, P6SMB300AHE3_A/H uniquely delivers AEC-Q101 qualification in the compact SMB footprint with sub-μA leakage-making it the only drop-in option for automotive body control modules requiring both space efficiency and automotive reliability compliance.
Availability
P6SMB300AHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, and telecom power supplies requiring stable component supply with automotive-grade traceability and long-term lifecycle support.
Supply support for P6SMB300AHE3_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 robust transient suppression in space-constrained, high-reliability applications-including automotive, industrial, and telecom-where consistent clamping behavior and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of P6SMB300AHE3_A/H at its rated peak pulse current?
The P6SMB300AHE3_A/H has a maximum clamping voltage (VC) of 414 V when subjected to its specified peak pulse current (IPPM) of 1.45 A under the 10/1000 μs waveform condition. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB300AHE3_A/H maintains this clamping performance across its qualified temperature range.
Is P6SMB300AHE3_A/H qualified for automotive applications?
Yes, P6SMB300AHE3_A/H is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's ordering information table (page 3). It undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D. This makes P6SMB300AHE3_A/H suitable for under-hood and chassis-mounted automotive modules where reliability under thermal and mechanical stress is critical.
What does the "_A/H" suffix in P6SMB300AHE3_A/H indicate?
The "_A/H" suffix in P6SMB300AHE3_A/H specifies packaging and revision: "A" denotes the revision code per Vishay's internal documentation, and "H" indicates 7-inch plastic tape-and-reel delivery (750 units per reel). This matches the ordering format shown in the "P6SMB6.8AHE3_B/H" example in the datasheet's Ordering Information section (page 3). The base "HE3" confirms RoHS-compliant and AEC-Q101-qualified construction.
How does the thermal resistance of P6SMB300AHE3_A/H affect PCB layout?
P6SMB300AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, measured on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures, PCB layout must replicate this pad area or add thermal vias to inner layers. Reducing pad size increases RθJA, risking thermal runaway during repetitive surges-so the P6SMB300AHE3_A/H layout must strictly follow Vishay's recommended mounting pad dimensions.
Can P6SMB300AHE3_A/H be used in bidirectional configurations?
No, P6SMB300AHE3_A/H is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA") and absence of bidirectional VBR/VWM ranges in its electrical characteristics table. Its cathode band marks the surge-current sink terminal, and it conducts only when reverse-biased beyond VBR. For bidirectional protection, Vishay offers P6SMB300CA variants-P6SMB300AHE3_A/H must not be substituted without circuit redesign.
P6SMB300AHE3_A/H 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):
- 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 (SMBJ)
P6SMB300AHE3_A/H FAQ
1.How can I place an order for P6SMB300AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB300AHE3_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 P6SMB300AHE3_A/H reliable?
The price and inventory of P6SMB300AHE3_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 P6SMB300AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB300AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB300AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB300AHE3_A/H?
P6SMB300AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB300AHE3_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 P6SMB300AHE3_A/H?
For technical support, including P6SMB300AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB300AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB300AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB300AHE3_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 P6SMB300AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB300AHE3_A/H?
All P6SMB300AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB300AHE3_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 P6SMB300AHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB300AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB300AHE3_A/H Tags
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