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Vishay General Semiconductor - Diodes Division P6SMB20AHE3_A/H
- Part No.:
- P6SMB20AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB20AHE3_A/H.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB20AHE3_A/H 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 17.1 V stand-off voltage (VWM), 19.0–21.0 V breakdown voltage (VBR) at 1 mA, 27.7 V maximum clamping voltage (VC) at 21.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB20AHE3_A/H datasheet, P6SMB20AHE3_A/H pinout, P6SMB20AHE3_A/H application, or P6SMB20AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on PCBs requiring robust ESD and lightning surge immunity.
Technical Context
The P6SMB20AHE3_A/H operates as a silicon avalanche diode that enters breakdown when reverse voltage exceeds its VBR threshold, diverting transient energy to ground while limiting downstream voltage to ≤27.7 V. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for protecting sensitive CMOS inputs and microcontroller I/O pins.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to 150 °C junction temperature when mounted on 5.0 mm × 5.0 mm copper pads per terminal. The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine) and meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 17.1 V - Maximum continuous reverse operating voltage before significant leakage; sets safe margin below system rail voltage. |
| VBR (Breakdown) | 19.0–21.0 V at 1 mA - Confirmed avalanche initiation range; defines precise clamping onset under transient stress. |
| VC (Clamping) | 27.7 V at 21.7 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines minimum IC withstand rating. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; supports common IEC 61000-4-5 surge test levels. |
| IPPM | 21.7 A - Corresponding peak pulse current at VC; used to size PCB trace width and grounding paths. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive or high-ambient industrial environments. |
| AEC-Q101 | Qualified - 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 and JESD 22-B102; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / transient return path | Connected to system ground or low-impedance return node; carries full surge current during clamping. |
| Cathode | Protected line connection / voltage reference node | Connected to line being protected (e.g., 24 V supply rail or sensor output); reverse-biased during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports Level 3/4 IEC 61000-4-5 surge immunity without derating in standard PCB layouts. |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %), low leakage (<1 μA), and long-term reliability under thermal cycling. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without pre-baking or special handling. |
| Low profile SMB package | Enables high-density routing and automated pick-and-place; footprint matches industry-standard DO-214AA land pattern. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in vehicle ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp transients before regulation. Use Value: Limits voltage to ≤27.7 V during 100 V/50 ms load dump events, preventing damage to downstream PMICs and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation systems from EFT and surge coupling. IC Role / Device Role / Timing Role: TVS connected across sensor output and ground to suppress fast transients induced by nearby motor switching. Use Value: Clamps sub-100 ns ESD events to <28 V, preserving ADC accuracy and avoiding false triggers in PLC analog input modules. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding Ethernet PHY power rails and bias lines in telecom base station line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on +3.3 V and +5 V bias supplies feeding PHY ICs and magnetics. Use Value: Absorbs 600 W transient energy per IEC 61000-4-5 Ed.3, maintaining PHY functionality during outdoor cabinet surges. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: TVS installed across motor terminals and MCU GPIO driving H-bridge to limit back-EMF spikes. Use Value: Prevents >30 V spikes from reaching MCU I/O pins, eliminating reset faults and extending firmware stability over 10,000+ cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A-E3/5T | Same VWM (17.1 V), identical SMB package, but lower PPPM = 400 W and higher VC = 32.4 V at 12.3 A. | Not AEC-Q101 qualified; suitable for commercial-grade consumer or computing applications only. | Select when cost sensitivity outweighs automotive qualification and higher clamping voltage is acceptable. |
| 1.5SMC20A | Higher package thermal resistance (RθJA ≈ 125 °C/W), same VBR range, but larger SMC (DO-214AB) footprint and no AEC-Q101 option. | Requires PCB redesign due to larger 7.1 mm × 6.2 mm outline; not compatible with space-constrained SMB layouts. | Choose only if existing board uses SMC footprint and AEC-Q101 compliance is not required. |
Compared with SMAJ20A-E3/5T and 1.5SMC20A, the P6SMB20AHE3_A/H delivers superior surge robustness (600 W vs. 400 W), tighter clamping (27.7 V vs. 32.4 V), and automotive-grade reliability - making it the preferred choice for safety-critical or high-reliability industrial and vehicular designs where layout and qualification constraints align.
Availability
P6SMB20AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom line cards, and consumer appliance motor controllers requiring stable component supply with AEC-Q101 validation and consistent surge performance.
Supply support for P6SMB20AHE3_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, rectifiers, TVS devices, and power MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in space-constrained, high-reliability applications - engineered for automotive, industrial, and telecom systems needing robust, standardized, and AEC-Q101-qualified protection solutions.
FAQ
What is the clamping voltage of the P6SMB20AHE3_A/H under a 10/1000 μs surge?
The P6SMB20AHE3_A/H has a maximum clamping voltage (VC) of 27.7 V at 21.7 A peak pulse current with a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads), and represents the highest voltage imposed on the protected circuit during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P6SMB20AHE3_A/H AEC-Q101 qualified?
Yes, the P6SMB20AHE3_A/H is AEC-Q101 qualified. The "HE3" suffix denotes RoHS-compliant and AEC-Q101-qualified construction, validated for automotive applications including temperature cycling, high-temperature reverse bias (HTRB), and ESD testing per AEC standard. This qualification applies specifically to the P6SMB20AHE3_A/H variant, not generic P6SMB20A parts.
What does the "_A/H" suffix mean in P6SMB20AHE3_A/H?
The "_A/H" suffix in P6SMB20AHE3_A/H indicates packaging configuration: "A" denotes the revision code (per Vishay's internal revision tracking), and "H" specifies the delivery mode - 7-inch diameter plastic tape and reel with 750 units per reel. This matches the ordering information shown in the official Vishay datasheet Document Number 88370.
Can the P6SMB20AHE3_A/H be used in bidirectional configurations?
No, the P6SMB20AHE3_A/H is a unidirectional TVS diode. Its part number lacks the "C" suffix (e.g., P6SMB20CA), which designates bidirectional variants. The device features a cathode band marking and is intended for single-polarity clamping - such as protecting positive supply rails against negative-going transients or ground-referenced signal lines.
What is the thermal resistance of the P6SMB20AHE3_A/H?
The P6SMB20AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, measured under standard conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads). These values enable accurate thermal modeling for designs operating up to +150 °C junction temperature in automotive and industrial environments.
P6SMB20AHE3_A/H 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/H FAQ
1.How can I place an order for P6SMB20AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB20AHE3_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 P6SMB20AHE3_A/H reliable?
The price and inventory of P6SMB20AHE3_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 P6SMB20AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB20AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB20AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB20AHE3_A/H?
P6SMB20AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB20AHE3_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 P6SMB20AHE3_A/H?
For technical support, including P6SMB20AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB20AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB20AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB20AHE3_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 P6SMB20AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB20AHE3_A/H?
All P6SMB20AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB20AHE3_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 P6SMB20AHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB20AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB20AHE3_A/H Tags
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