My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6KE6.8HE3/54
- Part No.:
- P6KE6.8HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8HE3/54.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,326
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE6.8HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection on DC power rails and signal lines. It features a 6.8 V breakdown voltage (VBR), 600 W peak pulse power rating (10/1000 µs), 10.5 V maximum clamping voltage at 57.1 A, 5.8 V stand-off voltage (VWM), and 1000 µA maximum reverse leakage at VWM. It is used in automotive ECUs to protect 5 V logic interfaces from load-dump and inductive switching transients.
For engineers reviewing the P6KE6.8HE3/54 datasheet, P6KE6.8HE3/54 pinout, P6KE6.8HE3/54 application, or P6KE6.8HE3/54 equivalent, this device delivers verified AEC-Q101 qualification, DO-204AC (DO-15) through-hole package compatibility, low clamping ratio (VC/VBR ≈ 1.54), and robust 175 °C junction temperature capability - critical for under-hood automotive designs requiring long-term reliability under thermal stress.
Technical Context
The P6KE6.8HE3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to ESD and surge events. Its unidirectional polarity uses a cathode band marking and exhibits forward conduction behavior below 3.5 V at 50 A, supporting bidirectional transient suppression when paired with complementary devices.
It complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive transients) when applied with appropriate series impedance. Thermal resistance is characterized at RθJL = 20 °C/W (junction-to-lead), enabling accurate derating above 25 °C ambient per Figure 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines guaranteed avalanche initiation range for consistent clamping onset |
| VWM | 5.8 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | 10.5 V at 57.1 A (10/1000 µs) - actual worst-case voltage seen by protected circuit during surge |
| IPPM | 57.1 A - peak surge current the device safely clamps without failure |
| PPPM | 600 W - standardized surge energy handling capacity per industry waveform definition |
| TJ max | 175 °C - enables operation in high-temperature environments such as engine compartments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, 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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side of protected line; conducts during positive surges when cathode is biased higher |
| Cathode | Avalanche clamping terminal | Marked end; connects to higher-potential rail (e.g., VCC) to clamp negative transients to ground via series path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable avalanche characteristics and long-term parameter stability under thermal cycling |
| 600 W peak pulse power (10/1000 µs) | Supports protection against ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (load dump precursor) in 12 V systems |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Low clamping voltage (10.5 V) | Ensures downstream 5 V ICs remain within absolute maximum ratings during 57.1 A surge events |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualified, JESD 201 Class 2 whisker-resistant matte tin plating for reliable solder joints |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 5 V supply lines in engine control units exposed to ISO 7637-2 load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary shunt clamping device placed between VCC and GND, activated within <1 ns to limit voltage excursion. Use Value: Clamps transients to ≤10.5 V, preventing latch-up or permanent damage to microcontrollers and CAN transceivers operating at 5 V. |
Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation PLC modules subject to relay coil kickback. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-signal line to suppress negative-going spikes up to −100 V. Use Value: Limits reverse voltage to ≤10.5 V while maintaining <1 µA leakage at 5.8 V, preserving sensor accuracy and offset stability. |
| Consumer USB Port ESD Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Secondary-level protection on VBUS line of USB 2.0 ports in set-top boxes, absorbing IEC 61000-4-2 ±8 kV contact discharge. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of polyfuse and LDO regulator to absorb fast ESD energy before it reaches power management ICs. Use Value: Responds in <1 ns with 10.5 V clamping, ensuring downstream USB PHY ICs (e.g., TUSB2036) remain within 6.5 V absolute max rating. |
Use Scenario: Front-end protection on -48 V DC telecom power feeds in base station line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS configured cathode-to-rail to clamp positive surges toward chassis ground, coordinated with gas discharge tube (GDT) primary stage. Use Value: Provides precise 10.5 V clamping at 57.1 A, enabling staged protection architecture that avoids over-stressing downstream DC-DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same VBR (6.4–7.14 V), but SMC package (DO-214AB); 600 W rating, lower RθJA (50 °C/W vs. 75 °C/W) | Surface-mount only; requires PCB rework; better thermal performance in compact layouts | Select SMBJ6.8A when board space is constrained and reflow assembly is available; not drop-in compatible with P6KE6.8HE3/54's through-hole footprint. |
| 1.5KE6.8A | Same DO-204AC package and VBR, but 1500 W rating (10/1000 µs); higher IPPM (171 A), larger package volume | Higher surge margin for industrial motor drives; same mounting but heavier lead frame | Choose 1.5KE6.8A where legacy 1.5 kW surge immunity is mandated; note increased mechanical stress on leads during wave soldering. |
Compared with SMBJ6.8A and 1.5KE6.8A, the P6KE6.8HE3/54 offers optimal balance of AEC-Q101 qualification, proven DO-15 manufacturability, and cost-effective 600 W protection - making it preferred for high-volume automotive and industrial through-hole designs where qualification and process maturity outweigh raw power rating.
Availability
P6KE6.8HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer USB power delivery circuits, and telecom line card protection requiring stable component supply across multi-year production cycles.
Supply support for P6KE6.8HE3/54 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6KE series belongs to Vishay's TransZorb® TVS portfolio, engineered for cost-sensitive, high-reliability transient suppression in automotive, industrial, and communications infrastructure - prioritizing robustness, AEC-Q101 compliance, and standardized surge handling.
FAQ
What is the clamping voltage of the P6KE6.8HE3/54 and how is it measured?
The P6KE6.8HE3/54 has a maximum clamping voltage (VC) of 10.5 V at 57.1 A peak pulse current, tested with a standardized 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the highest voltage imposed on the protected circuit during a surge event and is measured across the device terminals under specified surge conditions - not extrapolated or simulated. The P6KE6.8HE3/54 maintains this clamping performance across its full operating temperature range.
Is the P6KE6.8HE3/54 suitable for automotive applications?
Yes, the P6KE6.8HE3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control modules, body electronics, and ADAS sensor interfaces. Its 175 °C maximum junction temperature, glass-passivated junction, and HE3 suffix (JESD 201 Class 2 whisker resistance) confirm compliance with automotive reliability requirements. The P6KE6.8HE3/54 meets ISO 7637-2 test profiles when implemented with proper layout and series impedance.
How does the P6KE6.8HE3/54 differ from the P6KE6.8A-E3/54 variant?
The P6KE6.8HE3/54 is the AEC-Q101 qualified version, whereas P6KE6.8A-E3/54 is commercial grade only. Both share identical electrical parameters and DO-204AC packaging, but the HE3 suffix denotes enhanced reliability testing - including temperature cycling, highly accelerated life testing (HALT), and whisker resistance per JESD 201 Class 2. The P6KE6.8HE3/54 is designated for automotive and mission-critical industrial use; the P6KE6.8A-E3/54 is intended for non-automotive applications.
What is the meaning of the 'HE3' and '/54' in P6KE6.8HE3/54?
In P6KE6.8HE3/54, 'HE3' indicates RoHS-compliant, AEC-Q101 qualified construction with JESD 201 Class 2 whisker-resistant matte tin plating. '/54' specifies the preferred package code per Vishay's ordering system, denoting 13-inch paper tape and reel packaging with a 4000-unit base quantity. This format ensures traceability, automated placement compatibility, and compliance with automotive logistics standards - all confirmed for the P6KE6.8HE3/54.
Can the P6KE6.8HE3/54 be used in bi-directional protection circuits?
No, the P6KE6.8HE3/54 is unidirectional only, as indicated by the 'A' suffix (e.g., P6KE6.8A). Bi-directional variants use the 'CA' suffix (e.g., P6KE6.8CA) and lack polarity marking. Using the P6KE6.8HE3/54 in a bi-directional configuration would allow forward conduction during negative transients, potentially damaging downstream circuitry. For true bi-directional protection, select P6KE6.8HCA3/54 or equivalent - the P6KE6.8HE3/54 must be applied with correct anode/cathode orientation relative to the protected rail.
P6KE6.8HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 55.6A
- 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)
P6KE6.8HE3/54 FAQ
1.How can I place an order for P6KE6.8HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8HE3/54 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 P6KE6.8HE3/54 reliable?
The price and inventory of P6KE6.8HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8HE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE6.8HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8HE3/54?
P6KE6.8HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8HE3/54 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 P6KE6.8HE3/54?
For technical support, including P6KE6.8HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8HE3/54 requirements.
6.How does Aetrix verify that P6KE6.8HE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE6.8HE3/54 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 P6KE6.8HE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE6.8HE3/54?
All P6KE6.8HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8HE3/54, 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 P6KE6.8HE3/54 part is unused and in its original packaging.
Return procedure for P6KE6.8HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8HE3/54 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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 …
