My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P4KA6.8AHE3/54
- Part No.:
- P4KA6.8AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA6.8AHE3/54.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,377
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KA6.8AHE3/54 from Vishay General Semiconductor is a unidirectional 400 W transient voltage suppressor diode (TVS) with 6.45 V to 7.14 V breakdown voltage, 10.5 V clamping voltage at 38.1 A peak pulse current, and DO-204AL (DO-41) package. It protects automotive-grade sensor signal lines and MOSFET gates against inductive switching transients.
For engineers reviewing the P4KA6.8AHE3/54 datasheet, P4KA6.8AHE3/54 pinout, P4KA6.8AHE3/54 application, or P4KA6.8AHE3/54 equivalent, key selection criteria include AEC Q101 qualification, 185 °C max junction temperature, 0.057 %/°C VBR temperature coefficient, and JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode uses Vishay's patented PAR® construction for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of 10/1000 µs waveform transients up to 400 W. Its unidirectional polarity and 5.80 V stand-off voltage support reliable DC line protection without reverse leakage issues above 150 µA at 150 °C.
The device operates across -65 °C to +185 °C, with power derating above 25 °C per Figure 2 and peak forward surge rating of 40 A (8.3 ms half-sine). Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V - Ensures precise breakdown activation within automotive supply rail tolerances |
| VC @ IPPM | 10.5 V - Clamps 38.1 A surge to safe levels for downstream 12 V logic interfaces |
| PPPM | 400 W - Handles standard 10/1000 µs lightning/inductive transients per ANSI/IEEE C62.35 |
| TJ max | +185 °C - Supports under-hood automotive placement without thermal derating penalties |
| VWM | 5.80 V - Blocks normal 5 V or 12 V system operation while remaining below VBR |
| Temp. Coeff. VBR | 0.057 %/°C - Predictable voltage shift over temperature enables stable design margining |
Pinout & Package
Package: DO-204AL (DO-41), molded epoxy case with UL 94 V-0 flammability rating; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to protected line ground or low-side return path |
| Cathode | Current exit during reverse-biased clamping | Connected to protected signal or power rail; color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Reduces incremental surge resistance for tighter clamping and lower let-through energy |
| AEC Q101 qualification | Validated reliability for automotive powertrain and body electronics applications |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in high-reliability long-life assemblies |
| 10/1000 µs waveform capability | Meets ISO 7637-2 and SAE J1113-11 transient immunity test requirements |
Applications
| Automotive Sensor Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting Hall-effect and crankshaft position sensor signal outputs from load dump and inductive kickback in engine control units. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between sensor output and microcontroller input. Use Value: Limits transient voltage to ≤10.5 V, preventing latch-up or damage to 5 V tolerant MCU GPIOs while maintaining signal integrity. | Use Scenario: Safeguarding gate drive signals of IGBTs in variable-frequency drives subjected to switching noise and cross-talk. IC Role / Device Role / Timing Role: Fast-response clamping diode on isolated gate driver output traces. Use Value: Suppresses sub-100 ns ringing spikes before they reach the IGBT gate oxide, reducing risk of premature failure. |
| Telecom Power Interface | Consumer Power Adapter ESD |
Use Scenario: Shielding 48 V PoE+ power inputs in network switches from cable discharge events and lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on DC input rail upstream of DC-DC converters. Use Value: Absorbs 400 W pulses without degradation, preserving converter input stage reliability across extended service life. | Use Scenario: Adding secondary-side surge protection to USB-C PD adapter output ports exposed to user-handled cables. IC Role / Device Role / Timing Role: Standoff-rated clamping device on 5–20 V output rails. Use Value: Maintains 5.80 V stand-off while clamping to 10.5 V, ensuring compatibility with USB PD voltage negotiation protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A-E3/5BT | Lower PPPM (400 W same), but SMA package (smaller footprint, lower thermal mass); VC = 11.2 V at 35.1 A | Preferred for space-constrained PCBs where leaded DO-41 layout is impractical | Select when board area is critical and thermal cycling is moderate |
| 1.5KE6.8A | Higher PPPM (1500 W), axial DO-201AD package; VC = 11.5 V at 130 A; no AEC Q101 qualification | Suitable for industrial mains-connected equipment, not automotive under-hood use | Choose only for non-automotive, higher-energy surge environments requiring greater robustness |
Compared with SMAJ6.8A-E3/5BT and 1.5KE6.8A, the P4KA6.8AHE3/54 uniquely combines AEC Q101 qualification, DO-41 mechanical robustness, and optimized clamping for 5–12 V automotive signal rails-making it the preferred choice for qualified automotive electronics where reliability and thermal stability are mandatory.
Availability
P4KA6.8AHE3/54 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial motor controllers, telecom power interfaces, and consumer power adapter designs requiring stable component supply and long-term lifecycle assurance.
Supply support for P4KA6.8AHE3/54 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, rectifiers, and protection devices for demanding environments.
The P4KA6.8AHE3/54 belongs to Vishay's automotive-grade TVS family designed specifically for AEC Q101-compliant transient suppression in engine control, body electronics, and ADAS subsystems.
FAQ
What is the exact breakdown voltage range for P4KA6.8AHE3/54?
The P4KA6.8AHE3/54 has a guaranteed breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping behavior across production lots and supports robust design margining in 5 V and 12 V automotive systems where the P4KA6.8AHE3/54 is deployed.
Is P4KA6.8AHE3/54 qualified for automotive use?
Yes, the P4KA6.8AHE3/54 is AEC Q101 qualified and designated as high-reliability/automotive grade (base P/NHE3 suffix). It meets rigorous stress testing for temperature cycling, humidity bias, and mechanical shock-making it suitable for engine control units, transmission modules, and other under-hood applications where the P4KA6.8AHE3/54 provides transient protection.
What does the HE3/54 suffix mean in P4KA6.8AHE3/54?
The HE3 suffix indicates RoHS-compliant, high-reliability construction meeting JESD201 Class 2 whisker resistance, while /54 denotes the preferred package code for 13-inch paper tape and reel delivery with 5500 units per reel. This packaging format ensures automated assembly compatibility and traceability for the P4KA6.8AHE3/54 in high-volume manufacturing.
What is the maximum clamping voltage of P4KA6.8AHE3/54 under surge conditions?
The P4KA6.8AHE3/54 clamps to a maximum of 10.5 V at its rated peak pulse current of 38.1 A (10/1000 µs waveform). This value is measured per standardized test conditions and defines the upper voltage limit imposed on protected circuits during transient events-critical for safeguarding 5 V logic interfaces in systems using the P4KA6.8AHE3/54.
Can P4KA6.8AHE3/54 be used in bidirectional configurations?
No, the P4KA6.8AHE3/54 is specified for unidirectional polarity only, as confirmed in the Vishay datasheet Document Number 88364. It must be installed with the cathode (marked by color band) toward the protected line. For bidirectional protection, a separate device such as the P4SMA6.8CA would be required-not the P4KA6.8AHE3/54.
P4KA6.8AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 38.1A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KA6.8AHE3/54 FAQ
1.How can I place an order for P4KA6.8AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA6.8AHE3/54 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 P4KA6.8AHE3/54 reliable?
The price and inventory of P4KA6.8AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA6.8AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA6.8AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA6.8AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA6.8AHE3/54?
P4KA6.8AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA6.8AHE3/54 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 P4KA6.8AHE3/54?
For technical support, including P4KA6.8AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA6.8AHE3/54 requirements.
6.How does Aetrix verify that P4KA6.8AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA6.8AHE3/54 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 P4KA6.8AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA6.8AHE3/54?
All P4KA6.8AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA6.8AHE3/54, 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 P4KA6.8AHE3/54 part is unused and in its original packaging.
Return procedure for P4KA6.8AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KA6.8AHE3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
