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Diodes Incorporated P6KE9V1CA-B
- Part No.:
- P6KE9V1CA-B
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE9V1CA-B.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:7,716
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Product details
Overview
P6KE9V1CA-B from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal interfaces. 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 inductive switching transients.
For engineers reviewing the P6KE9V1CA-B datasheet, P6KE9V1CA-B pinout, P6KE9V1CA-B application, or P6KE9V1CA-B equivalent, this page delivers verified electrical parameters, clamping performance under 1.0ms 8.3ms surge conditions, thermal resistance data (RθJA = 75°C/W), and direct substitution guidance against active-replacement TVS diodes meeting AEC-Q101 requirements.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling single-device protection of AC-coupled or floating signal paths without polarity dependency. Its glass-passivated die ensures stable VBR tolerance (±5% typical) and low leakage (<50µA @ VRWM) at +25°C ambient.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity standards when applied with appropriate PCB layout - its 13.4V clamping voltage limits downstream IC stress during 45A 1.0ms pulses, while RθJL = 15°C/W supports reliable heat transfer through leads under sustained surge duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms non-repetitive pulse; defines maximum transient energy absorption capability) |
| Reverse Standoff Voltage (VRWM) | 7.78V (maximum continuous DC or RMS voltage before significant leakage; sets operating margin) |
| Breakdown Voltage (VBR) | 8.65V min @ 1.0mA (voltage at which device enters avalanche conduction; triggers clamping action) |
| Clamping Voltage (VC) | 13.4V max @ 45A IPP (voltage seen by protected circuit during worst-case surge; determines IC survivability) |
| Peak Pulse Current (IPP) | 45.0A (maximum surge current the device sustains at VC; validates protection level for ISO 7637-2 Pulse 5a) |
| Junction-to-Ambient Thermal Resistance | 75°C/W (defines temperature rise per watt under steady-state; critical for derating above +25°C ambient) |
| Package | DO-15 (axial-leaded, 0.4g weight, UL 94V-0 molded plastic; compatible with wave soldering and manual assembly) |
Pinout & Package
DO-15 package: axial-leaded, glass-passivated silicon junction, cathode band not marked on bidirectional variant (P6KE9V1CA-B). Leads are tin-plated, solderable per MIL-STD-202 Method 208, with 9.5mm lead length for thermal testing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Bidirectional operation: either terminal serves as anode or cathode depending on polarity of surge event |
| Lead 1 | PCB mounting interface | Provides mechanical anchoring and primary thermal path (RθJL = 15°C/W); requires ≥40mm² copper land for rated PD = 5.0W |
| Lead 2 | PCB mounting interface | Completes symmetrical thermal and electrical path; no polarity marking required for CA-type devices |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables protection against high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in 12V automotive systems |
| Glass-passivated die construction | Ensures long-term parameter stability and reduced parameter drift under thermal cycling and humidity exposure |
| Bidirectional configuration | Eliminates need for polarity-aware placement; protects AC signals, differential buses, and floating grounds with one component |
| RoHS-compliant lead finish | Meets EU Directive 2011/65/EU with full exemption documentation; supports lead-free reflow and wave soldering processes |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes voltage overshoot during clamping, reducing stress on downstream 5V/3.3V logic and CAN transceivers |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
|
Use Scenario: Protects microcontroller GPIO and LIN bus pins from battery line transients during load dump and relay coil de-energization. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between protected node and chassis ground, responding within <1ns to limit voltage excursion. Use Value: Clamps to 13.4V during 45A surge, preventing latch-up or gate oxide damage in 5V-tolerant MCU I/O cells. |
Use Scenario: Shields 24V DC digital input optocoupler front-end from field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: First-line transient suppressor located at connector entry point, shunting surge energy before conditioning circuitry. Use Value: Maintains <50µA leakage at 7.78V VRWM, ensuring clean logic threshold detection without false triggering. |
| USB-C Port ESD Protection | RS-485 Transceiver Interface |
|
Use Scenario: Guards CC and VCONN lines against human-body-model (HBM) ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at USB-C receptacle, referenced to system ground. Use Value: Symmetric clamping (±13.4V) prevents forward conduction during negative-going ESD pulses on VCONN. |
Use Scenario: Protects half-duplex RS-485 transceiver A/B differential pair from lightning-induced surges on long industrial cables. IC Role / Device Role / Timing Role: Common-mode TVS mounted across A–GND and B–GND, leveraging bidirectional response for polarity-agnostic surge suppression. Use Value: 13.4V clamping ensures transceiver common-mode range (−7V to +12V) remains unexceeded during 45A transients. |
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 | Lower 600W rating but SMB package (surface-mount); 9.0V VRWM, 12.6V VC @ 42.9A | Requires PCB real estate optimization; better suited for automated SMT assembly than through-hole DO-15 | Select when board space is constrained and wave-solder compatibility is not required |
| 1.5KE9.1CA | Same DO-15 package but higher 1500W rating; 9.1V VRWM, 14.5V VC @ 103A | Over-spec for 45A use cases; introduces higher junction capacitance (≈150pF vs. ≈50pF) affecting high-speed signal integrity | Select only when legacy 1.5KE footprint reuse is mandatory and surge threat exceeds 600W |
Compared with P6KE9V1CA-B, SMBJ9.0CA offers SMT scalability at the cost of manual assembly compatibility, while 1.5KE9.1CA trades lower clamping efficiency and higher parasitic capacitance for extreme surge headroom - neither matches the balanced VRWM/VC/IPP triad optimized for 12V automotive and industrial I/O protection.
Availability
P6KE9V1CA-B is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, USB-C port hardening, and RS-485 communication interfaces requiring stable component supply despite its obsolete status - supported via legacy inventory and cross-qualified replacements.
Supply support for P6KE9V1CA-B 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, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and computing markets.
P6KE9V1CA-B belongs to the P6KE series of 600W axial TVS diodes engineered specifically for cost-sensitive, high-volume 12V/24V system-level surge protection where DO-15 mechanical robustness and glass-passivation reliability are prioritized.
FAQ
Is P6KE9V1CA-B still in active production?
No - Diodes Incorporated has officially discontinued the P6KE9V1CA-B (Document DS21502 Rev. 20-4 states "OBSOLETE – PART DISCONTINUED"). Aetrix Electronics maintains limited legacy stock and supports transition to functionally aligned alternatives like SMBJ9.0CA or SMF9.0CA with validated clamping and footprint adaptation guidance.
What is the meaning of the 'CA' suffix in P6KE9V1CA-B?
The 'C' denotes bidirectional configuration; 'A' indicates standard tolerance (±5% on VBR). The '-B' suffix is a Diodes internal revision code indicating minor process or test enhancement - it does not affect electrical specifications, package, or pinout compared to P6KE9V1CA.
Can P6KE9V1CA-B be used in AEC-Q101 qualified designs?
While the P6KE9V1CA-B itself is not AEC-Q101 certified, Diodes offers the automotive-grade P6SMB9.0CA (AEC-Q101 qualified) as a direct SMT replacement. For legacy DO-15 designs, qualification requires full retesting of the assembled module - Diodes provides PPAP-capable manufacturing evidence upon request for legacy lots.
How does P6KE9V1CA-B compare to unidirectional P6KE9V1A in circuit design?
P6KE9V1CA-B provides symmetrical clamping for AC or floating nodes, eliminating polarity concerns during layout. Unlike P6KE9V1A (which requires cathode-to-ground orientation), the CA-B version allows arbitrary lead orientation - critical for protecting differential pairs or transformer-coupled interfaces where polarity assignment is undefined.
P6KE9V1CA-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Bulk
- 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):
- 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-B FAQ
1.How can I place an order for P6KE9V1CA-B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE9V1CA-B 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-B reliable?
The price and inventory of P6KE9V1CA-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE9V1CA-B is usually 5 days.
3.What payment methods are accepted for P6KE9V1CA-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE9V1CA-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE9V1CA-B?
P6KE9V1CA-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE9V1CA-B 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-B?
For technical support, including P6KE9V1CA-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE9V1CA-B requirements.
6.How does Aetrix verify that P6KE9V1CA-B is sourced from the original manufacturer or authorized distributors?
All P6KE9V1CA-B 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-B meets industry standards.
7.What is the process for return or replacement of P6KE9V1CA-B?
All P6KE9V1CA-B units undergo pre-shipment inspection (PSI). If there is an issue with P6KE9V1CA-B, 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-B part is unused and in its original packaging.
Return procedure for P6KE9V1CA-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE9V1CA-B Tags
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ESD9B5.0ST5G
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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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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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