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Vishay General Semiconductor - Diodes Division P6KA27AHE3/73
- Part No.:
- P6KA27AHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA27AHE3/73.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,607
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Product details
Overview
P6KA27AHE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 25.7 V to 28.4 V breakdown voltage (VBR), 23.1 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), 16.0 A peak pulse current (IPPM), and clamps to 37.5 V at rated surge, enabling robust protection in automotive power systems and industrial sensor interfaces.
For engineers reviewing the P6KA27AHE3/73 datasheet, P6KA27AHE3/73 pinout, P6KA27AHE3/73 application, or P6KA27AHE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, DO-15 package compatibility, and verified clamping performance under repetitive 10/1000 μs transients - critical for ECU power rail hardening and I/O line surge immunity.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation for stable high-temperature operation up to TJ = 185 °C. Its unidirectional polarity and low incremental surge resistance ensure fast response (<1 ns) and minimal voltage overshoot during transient events such as load dump or inductive switching.
The device is rated for 600 W peak pulse power (10/1000 μs waveform, 0.01 % duty cycle) and supports 75 A non-repetitive forward surge current (8.3 ms half-sine). Clamping voltage is specified at 37.5 V under 16.0 A IPPM, with temperature coefficient of VBR at +0.096 %/°C - enabling predictable derating across automotive ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V at 1.0 mA - defines reliable turn-on threshold for overvoltage detection |
| VWM | 23.1 V - maximum continuous working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 37.5 V at 16.0 A - clamped voltage seen by protected circuit during full-rated surge |
| PPPM | 600 W (10/1000 μs) - energy-handling capacity for standardized lightning/surge waveforms |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, engine control modules) |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 9.5 mm body length and 25.4 mm lead spacing |
Pinout & Package
DO-204AC (DO-15) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body end. Leads conform to J-STD-002 and JESD 22-B102 solderability standards; HE3 suffix meets JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 24 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | TJ = 185 °C rating enables use in under-hood automotive modules without thermal derating penalties |
| Fast transient response | Sub-nanosecond response time ensures clamping initiates before sensitive ICs experience overstress |
| Low clamping ratio | VC/VBR ≈ 1.33 - tight voltage margin between trigger and clamp improves system-level surge margin |
| AEC-Q101 qualification | Validated for automotive applications including temperature cycling, HTRB, and mechanical shock per standard |
| Robust surge handling | 75 A IFSM (8.3 ms half-sine) supports repeated load-dump events in 24 V vehicle systems |
Applications
| Automotive Engine Control Unit (ECU) Power Rail Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units against ISO 7637-2 Pulse 5a (load dump) transients up to 60 V. IC Role / Device Role / Timing Role: Primary shunt clamping device placed directly at connector entry point to limit rail voltage excursion. Use Value: Clamps to 37.5 V at 16 A, preventing damage to downstream 40 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to field-wiring inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to divert surge energy to common reference. Use Value: Withstands 600 W surges and maintains <1 μA leakage at 23.1 V, preserving input logic thresholds and noise immunity. |
| Telecom Remote Radio Head (RRH) DC Feed Line Protection | Consumer Appliance Motor Driver Board Protection |
Use Scenario: Securing 48 V DC power feed lines to remote radio heads against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage transient suppressor upstream of DC-DC isolation stage and PoE interface ICs. Use Value: 185 °C rating allows mounting near power electronics; 37.5 V clamping prevents overvoltage stress on isolated gate drivers. |
Use Scenario: Shielding microcontroller GPIOs and MOSFET gate drivers on washing machine motor control boards from brush-commutator noise. IC Role / Device Role / Timing Role: Localized TVS on motor driver IC supply pins and enable lines to suppress fast-edge ringing. Use Value: Fast response and low VC prevent false triggering of protection circuits and maintain PWM timing integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower VBR (26.7–29.5 V), same DO-214AC package, 400 W PPPM | Rated for lower-energy transients; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and 600 W surge headroom is unnecessary |
| 1.5KE27A | Same VWM/VBR range, higher VC (45.7 V), larger DO-201AD package, 1500 W PPPM | Higher clamping voltage increases risk to downstream 30 V-rated ICs; requires more PCB area | Choose only when legacy board layout mandates DO-201AD footprint and higher peak power is mandatory |
Compared with SMAJ24A and 1.5KE27A, P6KA27AHE3/73 delivers optimal balance of AEC-Q101 compliance, compact DO-15 footprint, 600 W capability, and low 37.5 V clamping - making it preferred for space-constrained, high-reliability 24 V automotive and industrial power interfaces.
Availability
P6KA27AHE3/73 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and telecom DC feed line protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P6KA27AHE3/73 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive environments.
The P6KA27AHE3/73 belongs to Vishay's PAR® series of high-temperature TVS diodes, engineered specifically for under-hood automotive electronics and industrial equipment requiring sustained operation above 150 °C.
FAQ
What is the maximum clamping voltage of the P6KA27AHE3/73 under rated surge conditions?
The P6KA27AHE3/73 has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and represents the upper voltage limit imposed on the protected circuit during full-rated transient events. The P6KA27AHE3/73 maintains this clamping performance across its operating temperature range, supporting robust design margins in 24 V systems.
Is the P6KA27AHE3/73 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the P6KA27AHE3/73 is explicitly AEC-Q101 qualified per the Vishay datasheet (Document Number 88368, Revision 20-Dec-13). It undergoes rigorous testing for high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock - confirming suitability for engine control units, body electronics, and other automotive subsystems. The P6KA27AHE3/73 also supports junction temperatures up to +185 °C, exceeding typical automotive requirements.
What does the "HE3" suffix indicate in P6KA27AHE3/73?
The "HE3" suffix in P6KA27AHE3/73 denotes RoHS-compliant construction with matte tin-plated leads that meet J-STD-002 and JESD 22-B102 solderability standards. Additionally, the HE3 variant satisfies JESD 201 Class 2 whisker testing, ensuring long-term reliability in high-vibration or high-temperature environments. This suffix confirms the P6KA27AHE3/73 is qualified for automotive and industrial applications where lead finish integrity is critical.
How does the P6KA27AHE3/73 differ from the non-"A" version P6KA27?
The P6KA27AHE3/73 offers tighter breakdown voltage tolerance (25.7–28.4 V) versus P6KA27 (24.3–29.7 V), resulting in more consistent clamping behavior across production lots. Its VWM is 23.1 V (vs. 21.8 V for P6KA27), allowing higher continuous operating voltage before leakage rises. Both share identical package (DO-15), power rating (600 W), and AEC-Q101 qualification, but the "A" variant provides improved parametric consistency for precision protection designs.
Can the P6KA27AHE3/73 be used in bidirectional configurations?
No, the P6KA27AHE3/73 is strictly unidirectional, as confirmed in the Vishay datasheet under FEATURES ("Available in uni-directional polarity only"). It conducts only in reverse breakdown mode and must be oriented with cathode toward the protected line. For bidirectional protection, a separate symmetric TVS array or back-to-back diode configuration would be required - the P6KA27AHE3/73 itself cannot function in AC or dual-polarity applications.
P6KA27AHE3/73 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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
P6KA27AHE3/73 FAQ
1.How can I place an order for P6KA27AHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA27AHE3/73 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 P6KA27AHE3/73 reliable?
The price and inventory of P6KA27AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA27AHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA27AHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA27AHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA27AHE3/73?
P6KA27AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA27AHE3/73 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 P6KA27AHE3/73?
For technical support, including P6KA27AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA27AHE3/73 requirements.
6.How does Aetrix verify that P6KA27AHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA27AHE3/73 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 P6KA27AHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA27AHE3/73?
All P6KA27AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA27AHE3/73, 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 P6KA27AHE3/73 part is unused and in its original packaging.
Return procedure for P6KA27AHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA27AHE3/73 Tags
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