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Vishay General Semiconductor - Diodes Division P6KE20HE3/73
- Part No.:
- P6KE20HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE20HE3/73.pdf
- Description:
- TVS DIODE 16.2VWM 29.1VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,212
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Product details
Overview
P6KE20HE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features 600 W peak pulse power (10/1000 μs), 27.7 V maximum clamping voltage at 21.7 A peak pulse current, 17.1 V stand-off voltage, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P6KE20HE3/73 datasheet, P6KE20HE3/73 pinout, P6KE20HE3/73 application, or P6KE20HE3/73 equivalent, this device is selected for robust transient suppression in automotive ECUs, industrial sensor interfaces, and DC power input stages where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.62), and high surge tolerance are required.
Technical Context
The P6KE20HE3/73 uses a glass-passivated silicon junction to achieve sub-nanosecond response to ESD and lightning-induced transients. Its uni-directional polarity enables integration into DC-biased circuits without reverse leakage concerns above 17.1 V, with 1.0 μA max reverse leakage at VWM and 3.5 V max forward voltage at 50 A.
Thermally, it supports operation from –55 °C to +175 °C junction temperature, with 20 °C/W typical junction-to-lead thermal resistance. The device fails short-circuit under catastrophic overload-enabling fuse coordination-and meets UL 497B recognition for telecom and industrial protectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17.1 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC bias margin. |
| VBR min/max | 19.0 V / 21.0 V at 1.0 mA - Breakdown voltage range ensures consistent turn-on across production lots. |
| VC @ IPPM | 27.7 V at 21.7 A - Clamping voltage limits downstream component stress during 10/1000 μs surges. |
| PPPM | 600 W - Peak pulse power rating determines survivability against IEC 61000-4-5 Level 4 (4 kV) surges. |
| IFSM | 100 A - Non-repetitive forward surge current rating supports inrush and load-dump immunity. |
| TJ max | +175 °C - High junction temperature rating enables use in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in uni-directional clamp configuration. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); conducts only during overvoltage events above VWM. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable breakdown characteristics and long-term reliability under thermal cycling and humidity exposure. |
| 600 W peak pulse power (10/1000 μs) | Supports protection against IEC 61000-4-5 surge waveforms up to 4 kV in 2 Ω/12 Ω source impedance configurations. |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving clamping precision. |
| Solder dip 275 °C max. for 10 s | Ensures lead integrity during wave soldering and reflow processes without delamination or parameter shift. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: 12 V battery feed to engine control unit exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Primary shunt TVS placed upstream of DC-DC converter input to clamp surges before regulation stage. Use Value: Limits voltage to ≤27.7 V during 21.7 A transients, preventing damage to LDOs and microcontrollers rated for 30 V absolute max. |
Use Scenario: Analog output line (0–10 V) from pressure sensor in factory automation PLC module. IC Role / Device Role / Timing Role: Uni-directional TVS tied between signal and ground to suppress ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback. Use Value: Clamps transients within <1 ns while adding <1 pF capacitance, preserving signal bandwidth and accuracy. |
| Telecom DC Power Interface | Consumer Device USB VBUS Protection |
|
Use Scenario: –48 V DC power input to telecom base station card subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 17.1 V) used in series with higher-voltage devices for staged protection architecture. Use Value: Provides first-stage clamping with 1.0 μA leakage at VWM, minimizing standby power loss in always-on systems. |
Use Scenario: VBUS line (5 V) in portable medical monitor with USB charging port exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance uni-directional TVS placed directly at USB connector to divert ESD before USB PHY IC. Use Value: Achieves 27.7 V clamping at 21.7 A while maintaining RoHS-compliant, whisker-tested (JESD 201 Class 2) matte tin leads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | Same VWM (17.1 V) and VC (27.7 V), but SMA package (surface-mount); lower IPPM (21.2 A vs. 21.7 A). | Requires PCB redesign for SMD layout; better suited for space-constrained consumer boards than through-hole automotive modules. | Select SMAJ20A when board space is limited and reflow assembly is preferred over wave soldering. |
| 1.5KE20A | Higher PPPM (1500 W), same DO-15 package, but larger die size; VC = 29.4 V at 51.0 A; not AEC-Q101 qualified. | Offers greater surge margin for industrial mains-connected equipment, but lacks automotive qualification and has higher clamping voltage. | Select 1.5KE20A for non-automotive applications requiring higher single-pulse energy handling without qualification constraints. |
Compared with SMAJ20A and 1.5KE20A, the P6KE20HE3/73 uniquely combines AEC-Q101 qualification, DO-15 through-hole compatibility, and optimized clamping performance for cost-sensitive automotive and industrial power rail protection-making it the default choice where qualification and legacy assembly processes are mandatory.
Availability
P6KE20HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE20HE3/73 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series targets cost-effective, high-surge-capability transient protection for automotive, industrial, and telecom infrastructure-designed to replace older 1N6267-style devices with improved consistency and qualification coverage.
FAQ
What is the clamping voltage of the P6KE20HE3/73 and how is it measured?
The P6KE20HE3/73 has a maximum clamping voltage (VC) of 27.7 V, measured at 21.7 A peak pulse current using a 10/1000 μs waveform per IEC 61000-4-5. This value represents the upper voltage limit imposed on the protected circuit during standardized surge testing and is guaranteed across temperature and production lot variations.
Is the P6KE20HE3/73 suitable for automotive applications?
Yes, the P6KE20HE3/73 is AEC-Q101 qualified and specifically rated for automotive use. Its construction-including glass-passivated junction, DO-15 package with matte tin leads, and operation up to +175 °C-meets stress test requirements for engine bay and chassis-mounted electronics, making it appropriate for ECU, body control, and ADAS subsystems.
How does the P6KE20HE3/73 differ from the standard P6KE20A variant?
The P6KE20HE3/73 differs from P6KE20A by its HE3 suffix, indicating AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. While both share identical electrical specs (VWM, VBR, VC, PPPM), the HE3 version undergoes additional automotive-grade reliability screening and is intended for mission-critical automotive deployments.
What is the reverse leakage current specification for the P6KE20HE3/73 at its stand-off voltage?
The P6KE20HE3/73 specifies a maximum reverse leakage current (ID) of 1.0 μA at its stand-off voltage (VWM = 17.1 V) and ambient temperature of 25 °C. This low leakage ensures minimal power loss in always-on circuits such as automotive wake-up monitoring or industrial sensor bias networks.
Can the P6KE20HE3/73 be used in bi-directional protection circuits?
No, the P6KE20HE3/73 is a uni-directional TVS diode and must not be used in bi-directional applications. Bi-directional variants use the "CA" suffix (e.g., P6KE20CA). Using the P6KE20HE3/73 in AC or floating signal paths would result in unintended forward conduction and failure; always verify polarity marking (cathode band) and circuit bias before integration.
P6KE20HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16.2V
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- 29.1V
- Current - Peak Pulse (10/1000µs):
- 20.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE20HE3/73 FAQ
1.How can I place an order for P6KE20HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20HE3/73 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 P6KE20HE3/73 reliable?
The price and inventory of P6KE20HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE20HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20HE3/73?
P6KE20HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20HE3/73 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 P6KE20HE3/73?
For technical support, including P6KE20HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20HE3/73 requirements.
6.How does Aetrix verify that P6KE20HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE20HE3/73 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 P6KE20HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE20HE3/73?
All P6KE20HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20HE3/73, 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 P6KE20HE3/73 part is unused and in its original packaging.
Return procedure for P6KE20HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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