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Vishay General Semiconductor - Diodes Division P6SMB20AHE3_A/I
- Part No.:
- P6SMB20AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB20AHE3_A/I.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,959
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Product details
Overview
P6SMB20AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, featuring 20 V standoff voltage (VWM), 21.0 V maximum breakdown voltage (VBR), and 27.7 V clamping voltage (VC) at 21.7 A peak pulse current - designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial power supplies.
For engineers reviewing the P6SMB20AHE3_A/I datasheet, P6SMB20AHE3_A/I pinout, P6SMB20AHE3_A/I application, or P6SMB20AHE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 600 W 10/1000 μs surge capability, low thermal resistance (RθJL = 20 °C/W), and RoHS-compliant matte tin plating per J-STD-002.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, conducting only when reverse voltage exceeds VBR (19.0–21.0 V), limiting transient energy via low incremental surge resistance and fast sub-nanosecond response. Its glass-passivated junction ensures stable leakage (<1.0 μA at 17.1 V) and long-term reliability under repetitive surges.
Designed for automated SMT placement on 5.0 mm × 5.0 mm copper pads, it meets MSL Level 1 (260 °C peak reflow) and supports automotive-grade operation up to TJ = 150 °C. The cathode band marking identifies polarity, and its unidirectional configuration enables integration into DC-biased protection paths without forward conduction interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17.1 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system DC rail. |
| VBR (min/max) | 19.0 V / 21.0 V - Breakdown occurs within this range at 1.0 mA test current; defines precise clamping onset threshold. |
| VC @ IPPM | 27.7 V - Clamped voltage during 21.7 A 10/1000 μs surge; determines maximum stress on protected IC. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 μs waveform; validates robustness against common lightning/inductive spikes. |
| IPPM | 21.7 A - Maximum non-repetitive surge current supported; used to size PCB trace width and pad thermal mass. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive or high-ambient industrial environments. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; supports efficient heat transfer to PCB copper without heatsink. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return node; carries full surge current during clamping. |
| Cathode | Reverse voltage sensing / Clamping output | Connected to protected line (e.g., 24 V rail or sensor input); voltage referenced to anode during transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports deployment in ADAS, body control, and powertrain modules. |
| Glass passivated junction | Eliminates moisture ingress and intermetallic degradation - ensures stable VBR and leakage over 15+ year field life. |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when mounted per recommended pad layout. |
| MSL Level 1 | Compatible with standard lead-free reflow profiles up to 260 °C peak - no baking required prior to assembly. |
| RoHS-compliant & halogen-free option | HE3 suffix confirms compliance with EU RoHS Directive 2011/65/EU and JEDEC JS709B halogen-free standards. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against back-EMF spikes from brushed DC motors and solenoids. IC Role / Device Role / Timing Role: Unidirectional TVS placed across motor supply rail and ground to clamp inductive kickback within 1 ns. Use Value: Prevents latch-up or oxide rupture in 3.3 V/5 V logic interfaces by limiting transient voltage to ≤27.7 V during 21.7 A surges. | Use Scenario: Safeguarding LIN bus transceivers and door-lock actuator drivers from load-dump and jump-start events. IC Role / Device Role / Timing Role: Standoff-rated clamping device on 12 V battery-fed lines, activated only above 17.1 V to avoid false triggering. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 5a (75 V/350 ms) by absorbing 600 W peak energy without failure. |
| Telecom Power Supplies | Consumer Appliance Control Boards |
Use Scenario: Input-stage protection for AC/DC adapters and PoE injectors exposed to lightning-induced surges on primary-side rectifiers. IC Role / Device Role / Timing Role: Primary-side TVS connected between bridge rectifier output and bulk capacitor to suppress differential-mode transients. Use Value: Enables compliance with IEC 61000-4-5 Ed. 3 (2 kV line-earth) using single-device solution with 27.7 V clamping ceiling. | Use Scenario: ESD and surge protection for touch-panel microcontrollers and relay driver outputs in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor on 5 V/24 V I/O lines, leveraging fast response to prevent MCU reset or latch-up. Use Value: Reduces field failure rate by >99% in 85 °C ambient environments due to 150 °C TJ rating and stable leakage <1 μA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A-E3/5B | Same VWM/VC, but SMA package (DO-214AC); RθJA = 125 °C/W vs. 100 °C/W for P6SMB20AHE3_A/I | Lower power density handling; less suitable for high-duty-cycle industrial surges | Select when board space is constrained and thermal budget allows higher junction rise. |
| 1.5SMC20A | Same electrical specs, but larger SMC (DO-214AB) package; 1.5 kW rating but same 27.7 V VC | Higher mounting pad area required; better for high-reliability telecom base stations | Choose when long-term surge endurance (>1000 pulses) is prioritized over footprint size. |
Compared with SMAJ20A-E3/5B and 1.5SMC20A, P6SMB20AHE3_A/I delivers optimal balance of compact SMB footprint, AEC-Q101 qualification, and verified 600 W surge performance - making it preferred for space-constrained automotive and industrial modules requiring production-grade validation.
Availability
P6SMB20AHE3_A/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power supplies, and consumer appliance control boards requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P6SMB20AHE3_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, rectifiers, and protection devices with emphasis on reliability, ruggedness, and automotive-grade qualification.
The P6SMB Series targets high-energy transient suppression in harsh environments, engineered specifically for AEC-Q101 compliance, automated SMT assembly, and stable clamping performance across -65 °C to +150 °C.
FAQ
What is the clamping voltage of P6SMB20AHE3_A/I at its rated peak pulse current?
The clamping voltage (VC) of P6SMB20AHE3_A/I is 27.7 V when subjected to its maximum peak pulse current (IPPM) of 21.7 A under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and guarantees that downstream components experience no more than 27.7 V during surge events - critical for protecting 3.3 V or 5 V logic interfaces. The P6SMB20AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is P6SMB20AHE3_A/I qualified for automotive applications?
Yes, P6SMB20AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P6SMB datasheet (Rev. 09-Jan-2024). It undergoes stress testing including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating suitability for automotive body electronics, infotainment power rails, and sensor interface protection. The P6SMB20AHE3_A/I meets all requirements for under-hood and cabin-mounted modules.
What is the maximum steady-state power dissipation for P6SMB20AHE3_A/I?
The maximum steady-state power dissipation (PD) for P6SMB20AHE3_A/I is 5.0 W at TA = 50 °C on an infinite heatsink. In real-world PCB layouts, derating applies: at 25 °C ambient, it supports ~5.5 W; at 70 °C, ~4.2 W. This rating governs continuous leakage power handling and must be considered alongside transient duty cycle. The P6SMB20AHE3_A/I's RθJL = 20 °C/W enables effective conduction cooling through copper pads without external heatsinks.
How does the HE3 suffix affect the material composition of P6SMB20AHE3_A/I?
The HE3 suffix on P6SMB20AHE3_A/I indicates RoHS-compliant construction with matte tin-plated leads and halogen-free molding compound, meeting both EU RoHS Directive 2011/65/EU and JEDEC JS709B standards. It also confirms AEC-Q101 qualification and JESD201 Class 2 whisker resistance. Unlike base-E3 variants, P6SMB20AHE3_A/I is explicitly validated for automotive use - a distinction critical for PPAP submissions and long-term reliability assurance in P6SMB20AHE3_A/I deployments.
What is the reverse leakage current specification for P6SMB20AHE3_A/I at its standoff voltage?
The maximum reverse leakage current (ID) for P6SMB20AHE3_A/I is 1.0 μA at its rated standoff voltage (VWM) of 17.1 V and TA = 25 °C. This ultra-low leakage ensures minimal standby power loss in always-on systems such as automotive LIN nodes or IoT sensor hubs. Leakage remains <5.0 μA up to 125 °C, preserving battery life and signal integrity - a key design advantage of the P6SMB20AHE3_A/I's glass-passivated junction technology.
P6SMB20AHE3_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):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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)
P6SMB20AHE3_A/I FAQ
1.How can I place an order for P6SMB20AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB20AHE3_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 P6SMB20AHE3_A/I reliable?
The price and inventory of P6SMB20AHE3_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 P6SMB20AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB20AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB20AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB20AHE3_A/I?
P6SMB20AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB20AHE3_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 P6SMB20AHE3_A/I?
For technical support, including P6SMB20AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB20AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB20AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB20AHE3_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 P6SMB20AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB20AHE3_A/I?
All P6SMB20AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB20AHE3_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 P6SMB20AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB20AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB20AHE3_A/I Tags
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