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Vishay General Semiconductor - Diodes Division P6KA27HE3/73
- Part No.:
- P6KA27HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA27HE3/73.pdf
- Description:
- TVS DIODE 21.8VWM 39.1VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,784
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Product details
Overview
P6KA27HE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics. It features a 24.3 V to 29.7 V breakdown voltage (VBR), 21.8 V standoff voltage (VWM), 600 W peak pulse power (10/1000 μs), 15.3 A peak pulse current (IPPM), and clamps to 39.1 V at rated surge - deployed on power rails and signal lines in automotive ECUs, industrial motor controllers, and telecom interface circuits.
For engineers reviewing the P6KA27HE3/73 datasheet, P6KA27HE3/73 pinout, P6KA27HE3/73 application, or P6KA27HE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, DO-204AC (DO-15) package compatibility, and verified clamping performance under repetitive 10/1000 μs transients in high-reliability embedded systems.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation, enabling stable operation up to TJ = 185 °C and compliance with automotive reliability requirements. Its unidirectional polarity and low incremental surge resistance ensure fast response (<1 ns) and precise clamping during inductive switching events.
The device is rated for 600 W peak pulse power (10/1000 μs waveform, 0.01 % duty cycle), supports 75 A non-repetitive forward surge current (8.3 ms half-sine), and maintains ≤1.0 μA reverse leakage at VWM = 21.8 V and TJ = 150 °C - critical for low-power sensor interfaces and always-on automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 24.3 V / 29.7 V - defines reliable avalanche initiation range under 1.0 mA test current; ensures consistent turn-on across temperature and lot variation. |
| VWM | 21.8 V - maximum continuous reverse operating voltage; sets safe margin below VBR for undisturbed circuit operation. |
| IPPM | 15.3 A - peak surge current it safely shunts at 10/1000 μs waveform; determines minimum trace width and PCB layout clearance needed. |
| VC @ IPPM | 39.1 V - clamped voltage during full-rated surge; directly limits stress on downstream ICs like microcontrollers or CAN transceivers. |
| TJ max. | +185 °C - enables placement near heat sources (e.g., power MOSFETs, inductors) without derating concerns in engine bay or industrial enclosures. |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 9.5 mm body length; compatible with legacy through-hole assembly and manual rework. |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for ASIL-B/C subsystems. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case meeting UL 94 V-0; matte tin-plated leads solderable per J-STD-002/JESD 22-B102; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); completes low-impedance surge shunt when reverse-biased. |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 24 V rail or CAN_H); initiates controlled breakdown above VWM to clamp transients. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy load dump and ISO 7637-2 Pulse 5a surges without degradation in automotive 24 V systems. |
| 185 °C maximum junction temperature | Eliminates thermal derating in under-hood applications and high-ambient industrial environments up to +125 °C ambient. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, highly accelerated life testing, and ESD robustness per JESD22-A114. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage overshoot during fast transients, protecting 3.3 V/5 V logic inputs even with long trace inductance. |
| HE3 suffix | Meets JESD201 Class 2 whisker resistance; prevents tin whisker growth in high-reliability, long-life deployments. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units against ISO 7637-2 load dump pulses and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and DC-DC input, clamping transients before they reach LDOs or microcontrollers. Use Value: Withstands 600 W surges while limiting clamped voltage to 39.1 V - well below 45 V absolute maximum ratings of common automotive PMICs. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure sensors from ESD and inductive kickback in factory automation. IC Role / Device Role / Timing Role: Standoff-connected TVS on sensor transmitter output, absorbing ±8 kV contact ESD per IEC 61000-4-2 without affecting 12-bit DAC accuracy. Use Value: 1.0 μA leakage at 21.8 V ensures <0.01 % error in precision current loops; fast response preserves signal integrity during 1 ns ESD events. |
| Telecom Interface Surge Suppression | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding RS-485 transceiver bus lines in outdoor base stations exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; this unidirectional part used on VCC-to-ground path of isolated power supply feeding transceiver ICs. Use Value: 39.1 V clamping protects 3.3 V or 5 V isolated DC-DC converters; DO-15 footprint allows dense layout on compact telecom module PCBs. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine drum drive). IC Role / Device Role / Timing Role: Mounted across motor terminals in parallel with flyback diode, handling repetitive 10/1000 μs switching transients at 0.01 % duty cycle. Use Value: 75 A IFSM rating handles repeated commutation surges; 185 °C rating survives sustained thermal stress near motor windings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/61 | Lower PPPM (400 W), smaller SMA package (SMD), VBR = 26.7–29.5 V, VC = 38.9 V at 10.3 A | Not AEC-Q101 qualified; limited to commercial/industrial use; requires reflow-compatible layout | Select for cost-sensitive SMT designs where 400 W surge margin suffices and automotive qualification is unnecessary. |
| 1.5KE27A | Higher PPPM (1500 W), larger DO-201AD package, VBR = 28.5–31.5 V, VC = 43.0 V at 34.9 A | Higher clamping voltage reduces system-level protection margin; not AEC-Q101 qualified | Choose when higher single-event energy absorption is required (e.g., primary front-end protection), accepting larger footprint and no automotive validation. |
Compared with SMAJ24A-E3/61 and 1.5KE27A, the P6KA27HE3/73 delivers balanced 600 W surge capability, automotive-grade reliability, and optimal clamping (39.1 V) in a proven through-hole package - making it the preferred choice for production-critical 24 V systems requiring zero qualification risk.
Availability
P6KA27HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply protection requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for P6KA27HE3/73 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade validation.
The P6KA27HE3/73 belongs to Vishay's PAR® series of high-temperature TVS diodes, engineered specifically for harsh-environment overvoltage protection in automotive, industrial, and telecom infrastructure where extended junction temperature operation and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage range for P6KA27HE3/73?
The P6KA27HE3/73 has a guaranteed breakdown voltage (VBR) range of 24.3 V to 29.7 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures reliable and repeatable avalanche initiation across manufacturing lots and temperature extremes, supporting robust design margins in 24 V systems.
Is P6KA27HE3/73 suitable for automotive applications?
Yes, the P6KA27HE3/73 is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature - meeting critical requirements for engine control, body electronics, and ADAS modules. Its DO-204AC package and HE3 whisker-resistant plating further support long-term reliability in automotive production environments.
What is the clamping voltage of P6KA27HE3/73 at its rated surge current?
The P6KA27HE3/73 clamps to a maximum of 39.1 V at its rated peak pulse current (IPPM) of 15.3 A under the standard 10/1000 μs waveform. This clamping voltage is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events.
Does P6KA27HE3/73 have unidirectional or bidirectional polarity?
The P6KA27HE3/73 is a unidirectional TVS diode, meaning it conducts only in reverse bias above VBR and blocks forward current like a standard rectifier. Its cathode is marked by a color band, and it must be oriented with cathode toward the protected line and anode to ground or lower potential.
What package type does P6KA27HE3/73 use, and is it RoHS-compliant?
The P6KA27HE3/73 uses the DO-204AC (DO-15) axial-leaded package with matte tin-plated leads and meets RoHS Directive 2011/65/EU. The HE3 suffix confirms compliance with JESD201 Class 2 whisker resistance, and the molding compound satisfies UL 94 V-0 flammability requirements.
P6KA27HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 21.8V
- Voltage - Breakdown (Min):
- 24.3V
- Voltage - Clamping (Max) @ Ipp:
- 39.1V
- Current - Peak Pulse (10/1000µs):
- 15.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KA27HE3/73 FAQ
1.How can I place an order for P6KA27HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA27HE3/73 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 P6KA27HE3/73 reliable?
The price and inventory of P6KA27HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA27HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA27HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA27HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA27HE3/73?
P6KA27HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA27HE3/73 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 P6KA27HE3/73?
For technical support, including P6KA27HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA27HE3/73 requirements.
6.How does Aetrix verify that P6KA27HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA27HE3/73 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 P6KA27HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA27HE3/73?
All P6KA27HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA27HE3/73, 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 P6KA27HE3/73 part is unused and in its original packaging.
Return procedure for P6KA27HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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