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Vishay General Semiconductor - Diodes Division P6KE9.1CHE3/73
- Part No.:
- P6KE9.1CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1CHE3/73.pdf
- Description:
- TVS DIODE 7.37VWM 13.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,895
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Product details
Overview
P6KE9.1CHE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of sensitive electronics. It features a 9.1 V breakdown voltage (VBR = 8.65–9.55 V at IT = 1.0 mA), 13.4 V maximum clamping voltage (VC) at 44.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor signal lines against inductive switching transients.
For engineers reviewing the P6KE9.1CHE3/73 datasheet, P6KE9.1CHE3/73 pinout, P6KE9.1CHE3/73 application, or P6KE9.1CHE3/73 equivalent, this device is selected for cost-sensitive, space-constrained DC power rail and low-speed signal line protection where AEC-Q101 qualification, fast response (<1 ns), and glass-passivated junction reliability are required.
Technical Context
The P6KE9.1CHE3/73 operates as a voltage-clamping avalanche diode, triggered when reverse voltage exceeds its specified breakdown range. Its unidirectional polarity uses a cathode band marking and conducts only during negative transients on the anode side, making it suitable for DC-biased rails like 5 V or 12 V supply lines.
It delivers 600 W peak pulse power under standardized 10/1000 μs surge conditions with 0.01 % duty cycle, and exhibits low incremental surge resistance due to its optimized silicon junction design. Thermal resistance is 20 °C/W junction-to-lead, enabling effective heat dissipation into PCB copper without heatsinking in typical transient duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at 1.0 mA test current - defines precise turn-on threshold for reliable clamping onset |
| VWM | 7.78 V - maximum continuous reverse operating voltage before leakage rises above 50 μA |
| VC @ IPPM | 13.4 V at 44.8 A - clamped voltage seen by protected circuit during worst-case 600 W transient |
| IPPM | 44.8 A - peak surge current capability with 10/1000 μs waveform, derated above 25 °C ambient |
| PPPM | 600 W - standardized surge energy handling per IEEE C62.41, sufficient for IEC 61000-4-5 Level 3 |
| TJ max | 175 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | DO-204AC (DO-15) - axial-leaded, RoHS-compliant, AEC-Q101 qualified package with matte tin leads |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating; cathode indicated by color band on one end; leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side of protected line (e.g., ground or return path) |
| Cathode | Current exit terminal during reverse clamping | Connected to higher-potential side (e.g., +5 V rail); marked with color band |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive-grade use including engine control, body electronics, and infotainment systems |
| 600 W peak pulse power (10/1000 μs) | Provides robust protection against lightning-induced surges and inductive kickback in industrial controls |
| Fast response time (<1 ns) | Clamps transients before downstream ICs experience damaging overvoltage stress |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot across protected components during surge events |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary clamping element placed between power input and local regulator input. Use Value: Limits transient voltage to ≤13.4 V, preventing damage to 16 V-rated LDOs and microcontrollers. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance shunt protector located at connector interface. Use Value: Clamps 8 kV contact ESD pulses within nanoseconds while adding <1 pF parasitic capacitance. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Safeguarding AC/DC adapter secondary-side outputs against surge coupling from mains transients. IC Role / Device Role / Timing Role: Uni-directional TVS on +5 V or +12 V output rail before USB or PCIe power delivery. Use Value: Absorbs 600 W surges without degradation, maintaining compliance with UL 62368-1 surge immunity requirements. |
Use Scenario: Protecting PoE-powered equipment inputs from induced surges on Ethernet cabling. IC Role / Device Role / Timing Role: Standoff protection on DC bias lines feeding isolated DC/DC converters. Use Value: Withstands repetitive 10/1000 μs surges up to 44.8 A while maintaining VWM = 7.78 V for stable 5 V bias operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | DO-214AA package, 9.0 V VBR, 13.1 V VC @ 43.5 A, 600 W rating | Surface-mount alternative with lower profile and higher thermal mass on PCB | Select when board space is constrained and reflow assembly is preferred over through-hole mounting |
| 1.5KE9.1A | Same DO-204AC package, identical VBR and VC, but rated for 1500 W peak pulse power | Higher-power variant for applications requiring margin beyond IEC 61000-4-5 Level 4 | Choose when system-level surge testing demands >600 W headroom or longer pulse durations apply |
Compared with SMBJ9.0A and 1.5KE9.1A, the P6KE9.1CHE3/73 offers optimal balance of AEC-Q101 qualification, axial-leaded mechanical robustness, and cost efficiency for high-volume automotive and industrial through-hole designs - without requiring PCB redesign or sacrificing surge margin.
Availability
P6KE9.1CHE3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and consumer DC adapter input stage applications requiring stable component supply and long-term lifecycle support.
Supply support for P6KE9.1CHE3/73 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, and protection devices with emphasis on reliability, AEC-Q101 qualification, and application-specific performance.
The P6KE series belongs to Vishay's TransZorb® TVS family, engineered for cost-effective, high-surge-capability overvoltage protection in automotive, industrial, and consumer power and signal lines.
FAQ
What is the breakdown voltage tolerance of the P6KE9.1CHE3/73?
The P6KE9.1CHE3/73 has a specified breakdown voltage range of 8.65 V to 9.55 V at 1.0 mA test current, representing ±5 % tolerance around the nominal 9.1 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable circuit protection design for 5 V and 12 V systems using the P6KE9.1CHE3/73.
Is the P6KE9.1CHE3/73 suitable for automotive applications?
Yes, the P6KE9.1CHE3/73 carries the HE3 suffix, confirming AEC-Q101 qualification per Vishay documentation. It is rated for operation from –55 °C to +175 °C junction temperature and meets automotive reliability requirements for under-hood and cabin electronics. The P6KE9.1CHE3/73 is routinely deployed in engine control modules, body control units, and ADAS sensor interfaces.
How does the clamping voltage of the P6KE9.1CHE3/73 compare to its breakdown voltage?
The P6KE9.1CHE3/73 clamps at 13.4 V when subjected to its rated 44.8 A peak pulse current, yielding a clamping ratio (VC/VBR) of approximately 1.4. This low ratio reflects efficient avalanche conduction and minimal voltage overshoot - critical for protecting 16 V-rated regulators and logic ICs downstream of the P6KE9.1CHE3/73.
What is the meaning of the 'HE3' suffix in P6KE9.1CHE3/73?
The 'HE3' suffix in P6KE9.1CHE3/73 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes this automotive-grade version from commercial 'E3' variants and confirms compliance with automotive reliability standards, including extended temperature cycling and surge endurance testing required for P6KE9.1CHE3/73 deployment in safety-critical subsystems.
Can the P6KE9.1CHE3/73 be used in bi-directional protection circuits?
No, the P6KE9.1CHE3/73 is a uni-directional TVS diode, identified by its cathode band marking and specified VBR/VC parameters for reverse-bias operation only. For bi-directional protection, Vishay specifies CA-suffix parts such as P6KE9.1CA. Using the P6KE9.1CHE3/73 in AC or floating signal paths would result in unintended forward conduction and failure to suppress positive transients - always verify polarity alignment when applying the P6KE9.1CHE3/73.
P6KE9.1CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.37V
- Voltage - Breakdown (Min):
- 8.19V
- Voltage - Clamping (Max) @ Ipp:
- 13.8V
- Current - Peak Pulse (10/1000µs):
- 43.5A
- 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)
P6KE9.1CHE3/73 FAQ
1.How can I place an order for P6KE9.1CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1CHE3/73 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 P6KE9.1CHE3/73 reliable?
The price and inventory of P6KE9.1CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9.1CHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE9.1CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1CHE3/73?
P6KE9.1CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1CHE3/73 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 P6KE9.1CHE3/73?
For technical support, including P6KE9.1CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1CHE3/73 requirements.
6.How does Aetrix verify that P6KE9.1CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE9.1CHE3/73 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 P6KE9.1CHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE9.1CHE3/73?
All P6KE9.1CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1CHE3/73, 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 P6KE9.1CHE3/73 part is unused and in its original packaging.
Return procedure for P6KE9.1CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9.1CHE3/73 Tags
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