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Diodes Incorporated P6KE120CA-T
- Part No.:
- P6KE120CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE120CA-T.pdf
- Description:
- TVS DIODE 102VWM 165VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:5,682
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Product details
Overview
P6KE120CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for overvoltage protection in DC power rails and signal lines. It features a 102V reverse standoff voltage (VRWM), 114–126V breakdown range (VBR), 165V maximum clamping voltage (VC) at 3.6A peak pulse current (IPP), and DO-15 package with glass-passivated junction. Used in industrial power supplies to protect rectifier outputs against lightning-induced surges.
For engineers reviewing the P6KE120CA-T datasheet, P6KE120CA-T pinout, P6KE120CA-T application, or P6KE120CA-T equivalent, this page delivers verified electrical parameters, clamping behavior under 1.0ms 600W pulses, thermal derating curves, bidirectional surge response, and direct replacement guidance for legacy TVS selection in high-reliability power systems.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling single-device protection of AC-coupled or floating bus lines without polarity dependency. Its glass-passivated die ensures stable VBR tolerance (±5%) and low leakage (≤5µA @ VRWM) at +25°C.
The device complies with IEC 61000-4-5 Level 4 surge immunity requirements when applied with appropriate series impedance. Thermal resistance values (RθJA = 75°C/W, RθJL = 15°C/W) define its steady-state dissipation limit (5.0W at TL = +75°C) and pulse handling capability under short-duration transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms 10/1000µs waveform; defines maximum transient energy absorption) |
| Reverse Standoff Voltage | 102V (maximum continuous DC or RMS voltage before significant leakage) |
| Breakdown Voltage Range | 114–126V (VBR tested at 1.0mA; confirms reliable turn-on threshold) |
| Max Clamping Voltage | 165V (VC at IPP = 3.6A; determines protected circuit's peak stress during surge) |
| Peak Pulse Current | 3.6A (IPP derived from PPK/VC; quantifies surge current handling at rated clamping) |
| Package | DO-15 (axial leaded, 0.4g weight, UL 94V-0 molded plastic; compatible with through-hole assembly) |
| Operating Temperature | −55°C to +175°C (enables use in automotive engine compartments and industrial enclosures) |
Pinout & Package
DO-15 package: axial-leaded, glass-passivated silicon junction, cathode band not marked on bidirectional version (P6KE120CA-T). Leads are solderable per MIL-STD-202, Method 208; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | One end of symmetrical junction; no polarity marking required for bidirectional operation |
| Cathode | Current exit point in forward bias | Other end of symmetrical junction; terminals are functionally interchangeable in AC protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or floating buses without external polarity management |
| 600W peak pulse rating | Supports IEC 61000-4-5 4kV/2Ω surge testing with proper PCB layout and series impedance |
| Glass-passivated die | Ensures ±5% VBR tolerance and long-term stability under thermal cycling and humidity |
| RoHS-compliant lead finish | Meets EU Directive 2011/65/EU with full exemption documentation; suitable for green manufacturing |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting secondary-side DC outputs of 24V industrial SMPS against load dump and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-mode TVS placed after bulk capacitor and before downstream regulators or controllers. Use Value: Limits transient voltage to ≤165V, preventing damage to 100V-rated MOSFETs and 3.3V/5V LDOs downstream. | Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from battery voltage spikes during alternator load dump. IC Role / Device Role / Timing Role: Bidirectional clamp between LIN line and ground, operating within −13.5V to +18V supply envelope. Use Value: Maintains signal integrity by clamping transients within 100ns while drawing <5µA leakage at 12V nominal. |
| Telecom Line Interface | Renewable Energy Inverter DC Link |
Use Scenario: Shielding RS-485 transceivers connected to outdoor cabling from ESD and induced surges. IC Role / Device Role / Timing Role: Common-mode TVS across differential pair, referenced to local ground plane. Use Value: Achieves <100ps response time and <165V clamping to preserve data integrity up to 10Mbps. | Use Scenario: Suppressing switching transients on 400V DC link capacitors in solar microinverters. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC bus, coordinated with snubber networks. Use Value: Absorbs 600W pulses without degradation, supporting >100,000 surge cycles per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | Same VRWM (102V) and VC (165V), but 600W rating in SMB package (surface-mount) | Requires rework of PCB layout; better suited for automated SMT assembly and space-constrained designs | Select when board real estate is limited and wave-soldering is not used. |
| 1.5KE120CA | Higher PPK (1500W), same DO-15 package, but larger body (5.6mm diameter vs. 3.6mm) | Delivers greater surge margin but requires revised mechanical cutout and higher mounting torque | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 requirements. |
Compared with SMBJ120CA and 1.5KE120CA, P6KE120CA-T offers optimal balance of proven through-hole reliability, compact DO-15 footprint, and precise 102V–126V VBR window for legacy industrial designs requiring drop-in replacement and long-lifecycle sourcing.
Availability
P6KE120CA-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom line interfaces, and renewable energy inverters requiring stable component supply despite its obsolete status.
Supply support for P6KE120CA-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the U.S., and manufacturing in ISO/TS 16949-certified facilities.
The P6KE series belongs to Diodes' transient voltage suppressor product line, engineered specifically for robust overvoltage protection in harsh environments where reliability, tight VBR tolerance, and repeatable clamping performance are critical.
FAQ
What does the "C" suffix indicate in P6KE120CA-T?
The "C" suffix denotes bidirectional construction: the device provides symmetrical clamping for both positive and negative transients without polarity orientation. Unlike unidirectional versions (e.g., P6KE120A-T), it has no cathode band marking and functions identically regardless of terminal connection order.
Is P6KE120CA-T still in production?
No - Diodes Incorporated has officially discontinued the P6KE120CA-T (document DS21502 Rev. 20–4 states "OBSOLETE – PART DISCONTINUED"). However, Aetrix Electronics maintains legacy inventory and supports last-time buys, cross-reference validation, and controlled obsolescence transition planning.
How does P6KE120CA-T compare to P6KE120A-T in circuit behavior?
P6KE120A-T is unidirectional and requires correct anode/cathode orientation to protect only negative-going transients; P6KE120CA-T clamps both polarities equally. Their VRWM, VBR, VC, and IPP values are identical, but CA-T eliminates risk of misorientation in AC or floating-bus applications.
Can P6KE120CA-T be used in automotive AEC-Q200 qualified designs?
While P6KE120CA-T itself is not AEC-Q200 certified, Diodes offers automotive-grade equivalents (e.g., P6SMB120CA-Q) with PPAP documentation, IATF 16949 manufacturing, and extended temperature validation. For legacy AEC-Q200 systems using P6KE120CA-T, qualification must be performed at the module level per customer requirements.
P6KE120CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 3.6A
- 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-15
P6KE120CA-T FAQ
1.How can I place an order for P6KE120CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE120CA-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 P6KE120CA-T reliable?
The price and inventory of P6KE120CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE120CA-T is usually 5 days.
3.What payment methods are accepted for P6KE120CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE120CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE120CA-T?
P6KE120CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE120CA-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 P6KE120CA-T?
For technical support, including P6KE120CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE120CA-T requirements.
6.How does Aetrix verify that P6KE120CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE120CA-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 P6KE120CA-T meets industry standards.
7.What is the process for return or replacement of P6KE120CA-T?
All P6KE120CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE120CA-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 P6KE120CA-T part is unused and in its original packaging.
Return procedure for P6KE120CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE120CA-T Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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