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Diodes Incorporated P6KE9V1CA-T
- Part No.:
- P6KE9V1CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9V1CA-T.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:7,643
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Product details
Overview
P6KE9V1CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 7.78V reverse standoff voltage (VRWM), 8.65V minimum breakdown voltage (VBR), 13.4V maximum clamping voltage (VC) at 45A peak pulse current, and DO-15 package with glass-passivated junction - used in automotive body control modules to suppress load dump and ISO 7637-2 transients.
For engineers reviewing the P6KE9V1CA-T datasheet, P6KE9V1CA-T pinout, P6KE9V1CA-T application, or P6KE9V1CA-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, bidirectional surge handling for AC-coupled or floating interfaces, thermal derating above +25°C ambient, and compatibility with automated through-hole assembly on industrial PCBs.
Technical Context
This TVS operates as a voltage-clamped crowbar device triggered by transient overvoltage exceeding its breakdown threshold. Its bidirectional construction enables symmetrical clamping for both positive and negative polarity surges without external polarity biasing.
It uses a glass-passivated silicon junction to achieve fast response time (<1.0 ns), low leakage (<50 µA at VRWM), and stable breakdown characteristics across -55°C to +175°C operating range - critical for under-hood automotive environments where thermal cycling and ESD robustness are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - sustains single 1.0 ms 8/20 µs surge without failure; defines maximum transient energy absorption capability |
| Reverse Standoff Voltage | 7.78 V - maximum continuous DC or RMS voltage before significant leakage; sets upper limit for protected circuit operating voltage |
| Breakdown Voltage | 8.65 V min @ 1.0 mA - guaranteed conduction onset; ensures reliable triggering before downstream component damage thresholds |
| Clamping Voltage | 13.4 V max @ 45 A - limits voltage seen by protected IC during worst-case surge; must be below absolute maximum rating of load |
| Package | DO-15 - axial-leaded, through-hole mountable package with 0.4 g mass and UL 94V-0 flammability rating |
| Operating Temp | -55°C to +175°C - supports engine bay, industrial motor drive, and outdoor power supply applications without derating loss |
| Leakage Current | 50 µA max @ 7.78 V - negligible standby power loss; avoids false triggering or battery drain in always-on systems |
Pinout & Package
DO-15 package: axial-leaded, molded plastic body, cathode band not marked on bidirectional version (P6KE9V1CA-T); leads are tin-plated, solderable per MIL-STD-202 Method 208; typical thermal resistance junction-to-ambient is 75°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Functions as cathode during positive surges and anode during negative surges; no fixed polarity reference |
| Cathode | Transient return path (bidirectional) | Functions as anode during positive surges and cathode during negative surges; symmetric conduction behavior |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power | Enables protection against high-energy ISO 7637-2 Pulse 5a (load dump) transients in 12V automotive systems |
| Glass-passivated die | Improves long-term reliability and moisture resistance vs. epoxy-passivated alternatives; meets AEC-Q101 stress requirements |
| Bidirectional configuration | Eliminates need for polarity-aware layout; suitable for AC signal lines, RS-485 buses, and ungrounded sensor interfaces |
| Fast response time | Sub-nanosecond turn-on prevents overshoot propagation to sensitive analog front-ends or microcontroller I/O pins |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power rails from load dump and jump-start transients in vehicle door modules. IC Role / Device Role: Primary overvoltage clamp placed between battery feed and local LDO input. Use Value: Limits rail voltage to ≤13.4 V during 120 V/50 ms load dump events, preventing LDO destruction and MCU brownout resets. | Use Scenario: Shields 24V digital input optocoupler circuits from field-wiring induced surges in factory automation cabinets. IC Role / Device Role: Front-end transient suppressor on dry-contact input terminals exposed to relay coil flyback and EMI coupling. Use Value: Clamps 1 kV/0.5 µs fast transients to safe levels before they reach isolation barrier, extending optocoupler lifetime by >5×. |
| DC Power Supply Input Stage | RS-485 Communication Port |
Use Scenario: Guards AC/DC adapter output against back-fed surges from connected equipment or capacitor discharge events. IC Role / Device Role: Secondary-side TVS on regulated 5V/12V outputs feeding downstream logic and sensors. Use Value: Absorbs up to 600W for 1 ms without degradation, maintaining output regulation integrity during fault conditions. | Use Scenario: Installed on differential pair lines of industrial RS-485 nodes subjected to lightning-induced ground potential rise. IC Role / Device Role: Common-mode surge protector bridging A/B lines to ground in full-duplex half-bridge transceivers. Use Value: Symmetric 13.4V clamping ensures balanced line voltage excursion, preserving receiver common-mode rejection ratio (CMRR). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Lower 600W rating but SMB package; 9.0V VRWM, 12.6V VC @ 48.2A; surface-mount only | Requires PCB redesign for SMT placement; unsuitable for through-hole legacy designs or high-vibration mounting | Select when board space is constrained and reflow assembly is available; verify thermal pad layout for 75°C/W RθJA |
| 1.5KE9.1CA | Same DO-15 package; higher 1500W rating; 9.1V VRWM, 14.4V VC @ 104A; larger physical size and weight | Overqualified for 600W needs; may cause excessive board stress during thermal cycling due to higher mass | Choose only if system-level testing requires >1000W surge margin or legacy 1.5KE footprint compatibility is mandatory |
Compared with SMBJ9.0CA and 1.5KE9.1CA, P6KE9V1CA-T delivers optimal balance of proven through-hole reliability, precise 13.4V clamping for 5V–12V systems, and cost-effective DO-15 manufacturability - making it preferred for automotive Tier-2 suppliers and industrial OEMs with mixed-technology assembly lines.
Availability
P6KE9V1CA-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input protection, and DC power supply surge hardening requiring stable component supply and traceable sourcing.
Supply support for P6KE9V1CA-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The P6KE series belongs to Diodes' transient voltage suppressor product line, engineered specifically for robust, cost-effective overvoltage protection in automotive, industrial, and consumer power systems where reliability under harsh electrical stress is non-negotiable.
FAQ
Is P6KE9V1CA-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE9V1CA-T and entire P6KE6V8(C)A–P6KE400(C)A family as of August 2024 (DS21502 Rev. 20-4). Aetrix Electronics maintains limited legacy stock for last-time buy and obsolescence mitigation, with full traceability and date-code documentation.
What is the difference between P6KE9V1A and P6KE9V1CA?
P6KE9V1A is unidirectional (cathode-banded), conducting only during positive surges; P6KE9V1CA is bidirectional, with identical clamping performance for both polarities and no cathode marking. The "C" suffix explicitly denotes bidirectional functionality per Diodes' datasheet Note 4.
Can P6KE9V1CA-T be used in place of P6KE9V1A in existing designs?
Only if the circuit is inherently symmetric or referenced to floating grounds. Substituting bidirectional for unidirectional TVS introduces conduction during negative transients - potentially causing unintended current paths or latch-up in circuits with grounded references. Layout and system-level surge testing must be repeated.
Does P6KE9V1CA-T meet AEC-Q101 qualification?
While not individually AEC-Q101 certified, the P6KE9V1CA-T is manufactured in IATF 16949-certified facilities and built using processes qualified to AEC-Q101. Diodes states that automotive-grade change control (PPAP, AEC-Q100/101/200 compliance) is available upon request - contact Diodes or Aetrix for project-specific qualification support.
P6KE9V1CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 45A
- 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-15
P6KE9V1CA-T FAQ
1.How can I place an order for P6KE9V1CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9V1CA-T 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 P6KE9V1CA-T reliable?
The price and inventory of P6KE9V1CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9V1CA-T is usually 5 days.
3.What payment methods are accepted for P6KE9V1CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9V1CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9V1CA-T?
P6KE9V1CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9V1CA-T 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 P6KE9V1CA-T?
For technical support, including P6KE9V1CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9V1CA-T requirements.
6.How does Aetrix verify that P6KE9V1CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE9V1CA-T 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 P6KE9V1CA-T meets industry standards.
7.What is the process for return or replacement of P6KE9V1CA-T?
All P6KE9V1CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9V1CA-T, 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 P6KE9V1CA-T part is unused and in its original packaging.
Return procedure for P6KE9V1CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9V1CA-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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