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Vishay General Semiconductor - Diodes Division P6SMB8.2AHE3_A/I
- Part No.:
- P6SMB8.2AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHE3_A/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,807
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Product details
Overview
P6SMB8.2AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 7.79 V to 8.61 V breakdown voltage (VBR) at 10 mA test current, 7.02 V maximum stand-off voltage (VWM), and 12.1 V clamping voltage (VC) at 49.6 A peak pulse current - enabling robust protection of 5 V–12 V logic interfaces, automotive sensor inputs, and industrial I/O circuits.
For engineers reviewing the P6SMB8.2AHE3_A/I datasheet, P6SMB8.2AHE3_A/I pinout, P6SMB8.2AHE3_A/I application, or P6SMB8.2AHE3_A/I equivalent, this part delivers AEC-Q101 qualification, 600 W peak pulse power (10/1000 µs), low incremental surge resistance, and SMB (DO-214AA) package compatibility with automated SMT assembly - critical for automotive-grade ESD/surge protection in space-constrained designs.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping device triggered by transient overvoltage events exceeding its VWM threshold. Its glass-passivated junction ensures stable leakage performance (<200 µA at VWM) and fast response time (<1 ns), while the 10/1000 µs waveform rating reflects real-world lightning and inductive-switching surge immunity per IEC 61000-4-5 Level 3.
The P6SMB8.2AHE3_A/I is rated for continuous power dissipation of 5.0 W at 50 °C on infinite heatsink and supports 100 A non-repetitive forward surge current (8.3 ms half-sine). Its thermal resistance (RθJA = 100 °C/W) and MSL Level 1 moisture sensitivity make it suitable for reflow soldering without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise clamping onset range for reliable overvoltage detection in 8 V nominal systems |
| VWM | 7.02 V - maximum continuous reverse voltage before leakage exceeds 200 µA; compatible with 5 V–7 V supply rails |
| VC @ IPPM | 12.1 V at 49.6 A - limits downstream IC voltage stress during 600 W transient events |
| PPPM | 600 W (10/1000 µs) - meets IEC 61000-4-5 surge immunity requirements for industrial and automotive applications |
| IFSM | 100 A (8.3 ms half-sine) - withstands high-energy inductive kickback without failure |
| TJ max. | +150 °C - enables operation in under-hood automotive environments and high-ambient industrial enclosures |
| Package | SMB (DO-214AA) - 3.94 mm × 2.20 mm footprint with 0.220″ lead-to-lead spacing; optimized for pick-and-place and board-level reliability |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line (e.g., VIN, signal trace); must be routed with low-inductance path to ground reference |
| Cathode | Current exit terminal during clamping; marked with band | Connected to system ground or low-impedance return path; determines clamping polarity relative to protected node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| 600 W peak pulse power | Clamps 10/1000 µs surges up to 600 W without degradation - sufficient for ISO 7637-2 Pulse 1/2a/5a compliance |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %), low leakage (<200 µA), and long-term reliability under thermal cycling |
| MSL Level 1 | Zero floor life limitation; supports standard reflow profiles up to 260 °C peak without baking |
| Low profile SMB package | Height ≤ 2.13 mm enables use in ultra-thin modules and dense PCB layouts where height clearance is constrained |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between sensor signal line and chassis ground to limit transient voltage to <12.1 V. Use Value: Prevents latch-up or gate oxide damage in 5 V/8 V interface ICs during ISO 16750-2 load dump events (up to 120 V, 400 ms). |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Standoff voltage limiter on 24 V DC input lines, shunting surge energy to ground before reaching optocoupler or microcontroller GPIO. Use Value: Maintains functional safety integrity by limiting transient overvoltage to 12.1 V during 600 W inductive switching events per IEC 61000-4-4. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters and USB-C PD power supplies against capacitor discharge and hot-plug transients. IC Role / Device Role / Timing Role: Fast-response clamp on 5 V/9 V/12 V output rails, activated within <1 ns to protect downstream DC-DC converters and USB port controllers. Use Value: Enables compliance with UL 62368-1 transient immunity requirements while maintaining tight output regulation. |
Use Scenario: Surge protection on Ethernet PHY or RS-485 transceiver lines in network switches and base station equipment. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used on DC-biased signal lines (e.g., bias-T powered PoE ports) with cathode tied to positive rail. Use Value: Limits common-mode surge-induced voltage excursions to <12.1 V, preserving signal integrity and preventing PHY latch-up during lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower VBR range (7.6–8.4 V), same SMB package, 400 W PPPM | Limited to lower-energy transients; insufficient for IEC 61000-4-5 Level 3 testing | Select when cost sensitivity outweighs surge margin and design operates below 400 W transient threat level |
| 1.5SMC8.2A | Same VBR/VC specs, higher PPPM (1500 W), larger SMC (DO-214AB) package | Requires PCB layout change due to 7.11 mm × 6.22 mm footprint and 0.315″ lead spacing | Choose when system-level surge testing exceeds 600 W or existing design has thermal headroom for larger package |
Compared with SMAJ8.0A and 1.5SMC8.2A, the P6SMB8.2AHE3_A/I uniquely balances AEC-Q101 qualification, 600 W surge capability, and compact SMB footprint - making it optimal for automotive and space-constrained industrial designs requiring validated reliability without layout redesign.
Availability
P6SMB8.2AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O hardening, and consumer power adapter secondary-side surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P6SMB8.2AHE3_A/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 and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for AEC-Q101 compliance, low clamping voltage, and robust surge handling in surface-mount form factors.
FAQ
What is the breakdown voltage tolerance for P6SMB8.2AHE3_A/I?
The P6SMB8.2AHE3_A/I has a specified breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, representing ±5 % tolerance around the nominal 8.2 V rating. This tight tolerance ensures predictable clamping behavior in precision 8 V systems and eliminates need for binning during production. The VBR value is measured per ANSI/IEEE C62.35 and remains stable across temperature due to its 0.065 %/°C temperature coefficient.
Is P6SMB8.2AHE3_A/I suitable for bidirectional transient protection?
No, P6SMB8.2AHE3_A/I is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the P6SMB8.2CA variant. Using P6SMB8.2AHE3_A/I on AC-coupled or symmetric signal lines would result in unintended forward conduction during negative half-cycles, potentially damaging the device or circuit. Always verify polarity alignment during schematic capture and layout.
Does P6SMB8.2AHE3_A/I require derating at elevated ambient temperatures?
Yes, P6SMB8.2AHE3_A/I must be derated above 25 °C ambient per Figure 2 in the datasheet. Its peak pulse power (PPPM) decreases linearly to ~50 % at 100 °C junction temperature. For continuous operation, the 5.0 W power dissipation rating applies only at 50 °C on infinite heatsink; actual PCB copper area and airflow determine usable power. Thermal simulation using RθJA = 100 °C/W is recommended for enclosure-level thermal validation.
What is the meaning of the "HE3_A/I" suffix in P6SMB8.2AHE3_A/I?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction, while "_A/I" specifies packaging: "I" indicates 3200-unit quantity on 13-inch plastic tape and reel. This differs from "H" (750 units on 7-inch reel). The "A" in "HE3_A/I" is part of the base ordering code structure and does not indicate automotive grade - that qualification is fully encoded in "HE3". Full traceability and lot-level compliance documentation are provided with each shipment of P6SMB8.2AHE3_A/I.
How does P6SMB8.2AHE3_A/I compare to older P6KE8.2A in terms of performance?
P6SMB8.2AHE3_A/I replaces through-hole P6KE8.2A with superior surface-mount performance: identical VBR and VC specs but 30 % smaller footprint (SMB vs. DO-15), 100 % automated assembly compatibility, and AEC-Q101 qualification. Unlike P6KE8.2A, P6SMB8.2AHE3_A/I meets MSL Level 1 and supports lead-free reflow without popcorn risk. Its 600 W rating matches P6KE8.2A, but lower parasitic inductance improves clamping speed in high-frequency transients.
P6SMB8.2AHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 49.6A
- 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)
P6SMB8.2AHE3_A/I FAQ
1.How can I place an order for P6SMB8.2AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHE3_A/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 P6SMB8.2AHE3_A/I reliable?
The price and inventory of P6SMB8.2AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHE3_A/I?
P6SMB8.2AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHE3_A/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 P6SMB8.2AHE3_A/I?
For technical support, including P6SMB8.2AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB8.2AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHE3_A/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 P6SMB8.2AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHE3_A/I?
All P6SMB8.2AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHE3_A/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 P6SMB8.2AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB8.2AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2AHE3_A/I Tags
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