My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6KE6.8-E3/54
- Part No.:
- P6KE6.8-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8-E3/54.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,520
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE6.8-E3/54 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 peak pulse current, and operates across -55 °C to +175 °C junction temperature. It is widely deployed in automotive body control modules to safeguard microcontroller I/O pins against load-dump-induced transients.
For engineers reviewing the P6KE6.8-E3/54 datasheet, P6KE6.8-E3/54 pinout, P6KE6.8-E3/54 application, or P6KE6.8-E3/54 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, standoff voltage compatibility with nominal rail voltage (e.g., 5 V systems), thermal derating under sustained surge conditions, and DO-15 package lead-forming requirements for automated assembly.
Technical Context
This device employs a glass-passivated silicon junction optimized for fast response (<1 ns) to transient events such as ESD, inductive switching spikes, and lightning surges. Its low incremental surge resistance ensures minimal voltage overshoot during high-current clamping, while its 20 °C/W junction-to-lead thermal resistance supports reliable power dissipation into PCB copper when mounted per JEDEC standards.
The P6KE6.8-E3/54 is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), exhibits 1000 μA maximum reverse leakage at 5.8 V standoff, and maintains stable breakdown characteristics with a +0.057 %/°C temperature coefficient - enabling predictable performance across automotive under-hood temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise conduction onset threshold for overvoltage triggering |
| VWM | 5.8 V - maximum continuous working voltage; must exceed system nominal voltage (e.g., 5 V rail) with margin |
| VC @ IPPM | 10.5 V at 57.1 A - clamping voltage seen by protected circuit during worst-case 600 W transient event |
| PPPM | 600 W - peak pulse power handling capability with standard 10/1000 μs waveform per IEC 61000-4-5 |
| IFSM | 100 A - surge current rating for 8.3 ms half-sine wave; determines fuse coordination and board-level robustness |
| TJ max. | +175 °C - enables operation in high-temperature environments including engine compartments and industrial controls |
| RθJL | 20 °C/W - junction-to-lead thermal resistance; informs heatsinking strategy and trace width design for thermal management |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy 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 | Current entry point during forward conduction | Connected to ground or lower-potential node in unidirectional configuration; used for low-side clamp topology |
| Cathode | Current exit point during forward conduction; marked with band | Connected to protected line (e.g., 5 V rail); conducts when line voltage exceeds VBR + VF |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable long-term reliability and consistent VBR tolerance across temperature and life cycles |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) without external series impedance |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive electronics per stress-test requirements including HTGB, HTRB, and TCT |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage stress on downstream ICs - critical for 3.3 V/5 V logic with tight absolute maximum ratings |
| RoHS-compliant, JESD201 Class 1A whisker tested | Ensures solder joint integrity and process compatibility in lead-free reflow and wave soldering environments |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 5 V supply rail in vehicle door module against ISO 7637-2 Pulse 5a (load dump up to 60 V). IC Role / Device Role / Timing Role: Primary shunt clamp placed directly at MCU power input, activated within <1 ns of overvoltage detection. Use Value: Limits rail voltage to ≤10.5 V during 600 W transient, preventing latch-up or permanent damage to 5 V-rated microcontrollers. |
Use Scenario: Safeguarding analog output of pressure sensor in factory automation PLC against ESD and relay-coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS connected between sensor output and ground, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Clamps transients below 10.5 V while maintaining <1 nA leakage at 5 V - preserving sensor accuracy and offset stability. |
| Consumer USB Port Surge Suppression | Telecom Line Card Overvoltage Defense |
|
Use Scenario: Secondary protection on USB VBUS line after primary polyfuse, guarding against hot-plug induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 5.8 V) placed upstream of USB controller, conducting only above safe threshold. Use Value: Prevents false overvoltage shutdowns while clamping 10/1000 μs surges to 10.5 V - ensuring uninterrupted enumeration and data transfer. |
Use Scenario: Front-end protection on Ethernet PHY power supply in telecom access equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional clamp on 3.3 V auxiliary rail, coordinated with gas discharge tube (GDT) for staged protection. Use Value: Provides fast-response secondary clamping (≤10.5 V) after GDT crowbar action, limiting residual energy delivered to PHY IC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A-T | Same VBR (6.45–7.14 V), but SMC package (DO-214AB); 600 W rating, 10.5 V VC; higher IPPM (64.7 A) | Surface-mount footprint; better thermal performance due to lower RθJA (50 °C/W vs. 75 °C/W) | Select SMBJ6.8A-T for space-constrained PCBs requiring automated SMT assembly and improved thermal cycling endurance. |
| 1.5KE6.8A | Same DO-15 package and VBR, but 1500 W rating; higher VC (13.4 V); larger physical size (DO-201AD) | Higher surge capacity for legacy designs needing >600 W margin; less suitable for compact layouts | Choose 1.5KE6.8A only where system-level surge testing requires >600 W headroom and board area permits larger case. |
Compared with SMBJ6.8A-T and 1.5KE6.8A, the P6KE6.8-E3/54 offers optimal balance of through-hole manufacturability, cost efficiency, and validated AEC-Q101 compliance - making it preferred for automotive production programs where DO-15 lead-forming infrastructure is already established and 600 W surge immunity suffices.
Availability
P6KE6.8-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer USB power protection, and telecom line card designs requiring stable component supply with full RoHS and AEC-Q101 traceability.
Supply support for P6KE6.8-E3/54 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive qualification.
The P6KE6.8-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for cost-sensitive, high-volume applications demanding robust transient immunity in harsh environments - especially automotive and industrial power rail protection.
FAQ
What is the maximum clamping voltage of the P6KE6.8-E3/54 under peak pulse conditions?
The P6KE6.8-E3/54 has a maximum clamping voltage (VC) of 10.5 V when subjected to its rated peak pulse current of 57.1 A (10/1000 μs waveform). This value is measured per IEC 61000-4-5 and guarantees that protected circuitry sees no more than 10.5 V during worst-case transient events - essential for safeguarding 5 V logic ICs with 6 V absolute maximum ratings. The P6KE6.8-E3/54 achieves this with a clamping ratio of approximately 1.55 relative to its minimum breakdown voltage.
Is the P6KE6.8-E3/54 suitable for automotive applications?
Yes, the P6KE6.8-E3/54 is AEC-Q101 qualified when ordered with the HE3 suffix (e.g., P6KE6.8AHE3/54), but the E3 suffix version remains RoHS-compliant and widely used in automotive body electronics where qualification is managed at system level. The P6KE6.8-E3/54 operates from -55 °C to +175 °C, withstands 100 A surge current, and meets ISO 7637-2 Pulse 5a requirements when properly implemented - making it a proven solution in door modules, lighting controllers, and infotainment power supplies.
How does the P6KE6.8-E3/54 differ from bi-directional TVS diodes like P6KE6.8CA?
The P6KE6.8-E3/54 is unidirectional and features a cathode band for polarity identification, whereas P6KE6.8CA is bi-directional with no marking and symmetrical breakdown in both directions. The P6KE6.8-E3/54 is intended for DC rail protection where polarity is fixed (e.g., +5 V to ground), offering tighter VF control and lower leakage at VWM. In contrast, P6KE6.8CA suits AC-coupled or floating signal lines like RS-485 or CAN bus, where voltage transients can swing positive or negative relative to reference.
What is the standoff voltage (VWM) rating of the P6KE6.8-E3/54, and why does it matter?
The P6KE6.8-E3/54 has a maximum standoff voltage (VWM) of 5.8 V - the highest continuous DC or RMS voltage it can block without significant leakage. This parameter is critical because VWM must exceed the normal operating voltage of the protected line (e.g., 5 V rail) with sufficient margin (typically ≥10 %) to avoid false triggering during ripple or tolerance excursions. Exceeding 5.8 V causes the P6KE6.8-E3/54 to enter breakdown, so proper selection ensures reliable protection without nuisance conduction.
Can the P6KE6.8-E3/54 be used in parallel for higher surge current handling?
No, the P6KE6.8-E3/54 is not recommended for parallel operation due to mismatch in dynamic impedance and breakdown voltage tolerances (±5 %), which causes uneven current sharing and potential thermal runaway. For higher surge capability, select a single higher-rated device such as 1.5KE6.8A (1500 W) or use staged protection with a front-end GDT and downstream P6KE6.8-E3/54. Each P6KE6.8-E3/54 must be individually sized for its local circuit node to ensure predictable clamping behavior.
P6KE6.8-E3/54 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE6.8-E3/54 FAQ
1.How can I place an order for P6KE6.8-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8-E3/54 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 P6KE6.8-E3/54 reliable?
The price and inventory of P6KE6.8-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE6.8-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8-E3/54?
P6KE6.8-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8-E3/54 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 P6KE6.8-E3/54?
For technical support, including P6KE6.8-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8-E3/54 requirements.
6.How does Aetrix verify that P6KE6.8-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE6.8-E3/54 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 P6KE6.8-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE6.8-E3/54?
All P6KE6.8-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8-E3/54, 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 P6KE6.8-E3/54 part is unused and in its original packaging.
Return procedure for P6KE6.8-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8-E3/54 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 …
