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Vishay General Semiconductor - Diodes Division P6KE9.1CA-E3/54
- Part No.:
- P6KE9.1CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9.1CA-E3/54.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,905
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Product details
Overview
P6KE9.1CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features 600 W peak pulse power (10/1000 μs), 9.1 V nominal breakdown voltage (VBR = 8.65–9.55 V at IT = 1.0 mA), and clamps to ≤13.4 V at 44.8 A peak pulse current - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6KE9.1CA-E3/54 datasheet, P6KE9.1CA-E3/54 pinout, P6KE9.1CA-E3/54 application, or P6KE9.1CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, 175 °C max junction temperature, low leakage (<50 μA at 7.78 V), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical bidirectional conduction - no polarity marking required. Its glass-passivated junction enables fast response (<1 ns) and stable clamping across repeated transients, while thermal resistance RθJL = 20 °C/W supports reliable power dissipation under surge conditions.
Designed for transient suppression per IEC 61000-4-2/4-4/4-5, it delivers consistent clamping performance across -55 °C to +175 °C operating range. The 10/1000 μs waveform rating reflects real-world lightning and inductive-switching surge profiles, and its 0.068 %/°C VBR temperature coefficient ensures predictable voltage threshold drift over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at 1.0 mA - defines precise voltage threshold where clamping initiates in both directions |
| VWM | 7.78 V - maximum continuous reverse working voltage before leakage exceeds 50 μA |
| VC @ IPPM | 13.4 V at 44.8 A - peak clamped voltage during 600 W transient, limiting downstream stress |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform, 0.01 % duty cycle |
| IPPM | 44.8 A - maximum non-repetitive surge current the device safely clamps without failure |
| TJ max | +175 °C - enables operation in under-hood automotive or high-ambient industrial environments |
| Leakage @ VWM | ≤50 μA - ensures minimal standby power loss and signal integrity in always-on circuits |
Pinout & Package
DO-15 (DO-204AC) molded epoxy package with matte tin-plated leads; bidirectional construction means no cathode marking - both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Either terminal serves as input/output - no polarity dependency; connects across protected line and ground or differential pair |
| Case | Mechanical mounting surface | Non-electrical; provides thermal path to PCB copper pour or heatsink via lead-to-lead conduction |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables <1 ns response time and stable long-term VBR tolerance without degradation under humidity or bias stress |
| 600 W peak pulse power | Withstands automotive load-dump and ISO 7637-2 Pulse 5a surges without derating or external heat sinking |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM ≥8 kV |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation meets fire-safety requirements for enclosed industrial and transportation equipment |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin for 3.3 V/5 V logic |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed between power rail and chassis ground to clamp transients up to ±100 V. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤13.4 V, preventing latch-up or gate oxide damage. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Placed across differential signal pair or single-ended output to ground to suppress ±8 kV contact ESD per IEC 61000-4-2. Use Value: Clamps sub-100 ns ESD pulses before they reach precision ADC inputs, preserving measurement accuracy and avoiding reset faults. |
| Consumer USB Port Surge Protection | Telecom Line Card Transient Suppression |
Use Scenario: Safeguarding USB 2.0 data lines in set-top boxes and smart displays exposed to user-handling ESD. IC Role / Device Role / Timing Role: Bidirectional TVS connected between D+ and D− lines to absorb common-mode surges without disrupting DC bias. Use Value: Maintains signal integrity below 480 Mbps by adding <0.5 pF capacitance and clamping to <15 V within 1 ns. | Use Scenario: Protecting Ethernet PHY interface pins on DSL or VoIP line cards from lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Installed across transformer-coupled pairs to divert induced common-mode energy to earth ground. Use Value: Survives multiple 10/700 μs telecom surges (IEC 61000-4-5 Level 4) while maintaining isolation and signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same VBR range (8.5–9.4 V), but SMB package (DO-214AA); 600 W rating, lower RθJA (50 °C/W vs. 75 °C/W) | Better thermal performance in high-density layouts; requires SMT reflow instead of through-hole mounting | Select when board space is constrained and automated assembly is preferred over manual insertion. |
| 1.5KE9.1CA | Same DO-15 package and VBR, but higher PPPM = 1500 W; larger junction area increases capacitance and thermal mass | Higher surge margin for infrequent but extreme events (e.g., direct lightning coupling); less suitable for high-frequency signal lines | Choose when legacy DO-15 footprint must be retained but system-level surge testing exceeds 600 W requirements. |
Compared with SMBJ9.0CA and 1.5KE9.1CA, P6KE9.1CA-E3/54 offers optimal balance of through-hole manufacturability, AEC-Q101 compliance, and cost-effective 600 W protection - making it ideal for automotive body electronics and industrial control modules where reliability and process maturity are prioritized over ultra-high surge headroom or miniaturization.
Availability
P6KE9.1CA-E3/54 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O protection, and consumer power adapter surge suppression requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6KE9.1CA-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series targets cost-sensitive, high-volume transient suppression in automotive, industrial, and consumer systems - delivering AEC-Q101-qualified robustness in standard DO-15 packaging without design compromise.
FAQ
What does the "CA" suffix mean in P6KE9.1CA-E3/54?
The "CA" suffix in P6KE9.1CA-E3/54 indicates a bidirectional configuration - meaning the device clamps voltage transients equally in both polarities, with no cathode marking required. This differs from unidirectional "A" variants (e.g., P6KE9.1A), which conduct only in reverse bias and require correct polarity orientation during PCB layout. The CA version is ideal for AC-coupled or differential signal protection.
Is P6KE9.1CA-E3/54 qualified for automotive use?
Yes, P6KE9.1CA-E3/54 is AEC-Q101 qualified when ordered with the HE3 suffix (e.g., P6KE9.1CAHE3/54). The base P6KE9.1CA-E3/54 variant is RoHS-compliant commercial grade; however, its electrical specs, DO-15 package, and glass-passivated junction meet all AEC-Q101 stress test requirements - enabling drop-in qualification with appropriate suffix and traceability documentation.
What is the maximum clamping voltage of P6KE9.1CA-E3/54 under surge conditions?
The maximum clamping voltage (VC) of P6KE9.1CA-E3/54 is 13.4 V at 44.8 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range (-55 °C to +175 °C) and represents the upper limit of voltage imposed on protected circuitry during worst-case transient events.
Can P6KE9.1CA-E3/54 replace P6KE9.1A in an existing design?
No - P6KE9.1CA-E3/54 cannot directly replace P6KE9.1A without layout review. While both share identical VBR, VWM, and package, P6KE9.1A is unidirectional (cathode-banded) and conducts only in reverse bias, whereas P6KE9.1CA-E3/54 is bidirectional (no band) and conducts symmetrically. Swapping requires verifying that the protected circuit tolerates bidirectional conduction and removing polarity-dependent routing constraints.
What is the thermal resistance of P6KE9.1CA-E3/54, and how does it affect layout?
P6KE9.1CA-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 75 °C/W. For reliable operation under repeated surges, PCB layout must maximize copper area connected to both leads - minimum 100 mm² per lead recommended - to dissipate transient energy and avoid exceeding the 175 °C maximum junction temperature during high-duty-cycle events.
P6KE9.1CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 44.8A
- 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)
P6KE9.1CA-E3/54 FAQ
1.How can I place an order for P6KE9.1CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9.1CA-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 P6KE9.1CA-E3/54 reliable?
The price and inventory of P6KE9.1CA-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 P6KE9.1CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE9.1CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9.1CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9.1CA-E3/54?
P6KE9.1CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9.1CA-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 P6KE9.1CA-E3/54?
For technical support, including P6KE9.1CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9.1CA-E3/54 requirements.
6.How does Aetrix verify that P6KE9.1CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE9.1CA-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 P6KE9.1CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE9.1CA-E3/54?
All P6KE9.1CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9.1CA-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 P6KE9.1CA-E3/54 part is unused and in its original packaging.
Return procedure for P6KE9.1CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9.1CA-E3/54 Tags
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