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Vishay General Semiconductor - Diodes Division P6SMB30AHE3_B/I
- Part No.:
- P6SMB30AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHE3_B/I.pdf
- Description:
- 600W,30V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,999
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Product details
Overview
P6SMB30AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 30 V standoff voltage (VWM), 31.5 V maximum breakdown voltage (VBR), 41.4 V clamping voltage at 14.5 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB30AHE3_B/I datasheet, P6SMB30AHE3_B/I pinout, P6SMB30AHE3_B/I application, or P6SMB30AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, triggering when transient voltage exceeds its breakdown threshold (28.5–31.5 V at 1 mA). Its glass-passivated junction ensures stable leakage (<1.0 μA at 25.6 V) and fast response time (<1.0 ns), enabling protection against ESD, inductive switching spikes, and lightning-induced surges.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to 150 °C junction temperature. The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine) and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 25.6 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC operating margin. |
| VBR (Breakdown Voltage) | 28.5–31.5 V at 1 mA - Voltage at which device enters avalanche conduction; ensures precise overvoltage triggering. |
| VC (Clamping Voltage) | 41.4 V at 14.5 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability under standardized 10/1000 μs waveform; enables robust surge immunity. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Ultra-low leakage preserves system efficiency and prevents false triggering in high-impedance circuits. |
| TJ max | 150 °C - Maximum junction temperature rating; supports reliable operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage events. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path during reverse transient. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients common in automotive load-dump and industrial motor-switching scenarios. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics use, including engine control units, body modules, and ADAS sensor interfaces. |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift across temperature and lifetime stress conditions. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning; compatible with high-volume automated assembly lines. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage overshoot during clamping, reducing risk of damage to sensitive downstream ICs and MOSFETs. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V power rails in engine control units from load-dump transients (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between supply rail and chassis ground to limit voltage excursion to ≤41.4 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during alternator disconnection events. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation systems from ESD and cable discharge. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector entry point to shunt fast transients before reaching precision ADC front-end. Use Value: Maintains signal integrity and measurement accuracy by limiting transient-induced offset errors and preventing input-stage saturation. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding -48 V telecom rectifier outputs against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: High-power unidirectional TVS installed upstream of DC-DC converters to clamp multi-kW surge energy. Use Value: Ensures uninterrupted operation of base station controllers by absorbing >600 W pulses without degradation or thermal runaway. |
Use Scenario: Adding secondary-level surge protection to USB VBUS lines in smart home hubs exposed to user-handling ESD. IC Role / Device Role / Timing Role: Compact SMB-packaged TVS placed adjacent to USB connector to suppress ±8 kV contact ESD per IEC 61000-4-2. Use Value: Eliminates need for external spark gaps or varistors, reducing BOM count while meeting Class 4 ESD immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5B | Same VWM (25.6 V), identical SMB package, but not AEC-Q101 qualified; higher VC (43.5 V at 13.8 A). | Targeted at commercial/industrial designs where automotive qualification is unnecessary. | Select when cost sensitivity outweighs automotive reliability requirements and slightly higher clamping is acceptable. |
| 1.5SMC30A | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W); same VWM/VC specs but lower surge current rating (13.3 A vs. 14.5 A). | Used in less thermally constrained PCB layouts with larger copper areas or lower ambient temperatures. | Choose only if existing design uses SMC footprint and layout cannot be modified; otherwise P6SMB30AHE3_B/I offers superior thermal performance. |
Compared with SMAJ30A-E3/5B and 1.5SMC30A, P6SMB30AHE3_B/I delivers tighter clamping, lower thermal resistance, and AEC-Q101 validation - making it the preferred choice for automotive and high-reliability industrial deployments where consistent surge immunity and long-term parameter stability are critical.
Availability
P6SMB30AHE3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power inputs, and consumer USB protection requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for P6SMB30AHE3_B/I 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, power handling, and automotive qualification.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness, consistency, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the P6SMB30AHE3_B/I under a 10/1000 μs surge?
The P6SMB30AHE3_B/I has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM) under the standardized 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 circuits during transient events. The low clamping ratio (VC/VBR ≈ 1.35) ensures minimal overvoltage stress on downstream components like microcontrollers or gate drivers.
Is the P6SMB30AHE3_B/I suitable for automotive applications?
Yes, the P6SMB30AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" and "_B" suffixes in its ordering code. It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification per AEC standards. This makes the P6SMB30AHE3_B/I appropriate for under-hood and cabin applications such as engine control units, body control modules, and ADAS sensor power rails where reliability under thermal and electrical stress is critical.
What does the "_B/I" suffix indicate in P6SMB30AHE3_B/I?
The "_B" suffix denotes AEC-Q101 qualification for the P6SMB30AHE3_B/I series, while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format supports high-volume SMT assembly and is documented in Vishay's ordering information table (page 3 of datasheet 88370). The "HE3" portion confirms RoHS-compliant, AEC-Q101-qualified construction with matte tin plating.
How does the thermal performance of P6SMB30AHE3_B/I compare to similar SMB TVS diodes?
The P6SMB30AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W - better than many competing SMB TVS devices like the 1.5SMC30A (RθJA = 125 °C/W). This improved thermal efficiency allows the P6SMB30AHE3_B/I to sustain higher average power dissipation and maintain stable clamping performance in compact, thermally limited PCB layouts common in automotive and industrial modules.
Can the P6SMB30AHE3_B/I replace older P6SMB30A variants in existing designs?
Yes, the P6SMB30AHE3_B/I is a direct functional and mechanical replacement for legacy P6SMB30A parts in the same SMB (DO-214AA) footprint, with identical electrical characteristics (VWM = 25.6 V, VBR = 28.5–31.5 V, VC = 41.4 V). Its added AEC-Q101 qualification, RoHS compliance, and MSL Level 1 rating make it suitable for drop-in upgrades in automotive and industrial designs - provided the original design accommodates the HE3 construction and tape/reel packaging.
P6SMB30AHE3_B/I 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
P6SMB30AHE3_B/I FAQ
1.How can I place an order for P6SMB30AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHE3_B/I 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 P6SMB30AHE3_B/I reliable?
The price and inventory of P6SMB30AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB30AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHE3_B/I?
P6SMB30AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHE3_B/I 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 P6SMB30AHE3_B/I?
For technical support, including P6SMB30AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB30AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHE3_B/I 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 P6SMB30AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB30AHE3_B/I?
All P6SMB30AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHE3_B/I, 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 P6SMB30AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB30AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30AHE3_B/I Tags
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