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Diodes Incorporated P6KE27A-T
- Part No.:
- P6KE27A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE27A-T.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,455
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Product details
Overview
P6KE27A-T from Diodes Incorporated is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 23.1V minimum breakdown voltage (VBR), 28.4V maximum reverse standoff voltage (VRWM), and clamps transients to ≤37.5V at 16.0A peak pulse current (IPP). Used in industrial power supplies, automotive body electronics, and telecom interface protection.
For engineers reviewing the P6KE27A-T datasheet, P6KE27A-T pinout, P6KE27A-T application, or P6KE27A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, IPP capability under 8/20μs surge, DO-15 thermal derating above +25°C, and unidirectional polarity alignment with DC rail grounding.
Technical Context
This TVS operates as a silicon avalanche diode that remains non-conductive below VRWM (28.4V) and enters low-impedance clamping mode within <1 ns when subjected to ESD or lightning-induced surges exceeding VBR (23.1–28.4V). Its glass-passivated junction ensures stable leakage (<5.0 μA @ VRWM) and repeatable breakdown behavior across temperature.
The device is rated for 600W peak pulse power (tP = 1.0 ms, 10/1000μs waveform), supports 100A forward surge current (8.3ms half-sine), and exhibits RθJA = 75°C/W - requiring PCB copper land area (≥40 mm²) and lead length control (9.5 mm) to sustain 5.0W steady-state dissipation at TL = +75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms non-repetitive, defines surge energy handling per event) |
| Reverse Standoff Voltage (VRWM) | 28.4V (maximum continuous DC or RMS voltage before clamping begins) |
| Breakdown Voltage (VBR) | 23.1–28.4V @ 1.0mA (avalanche onset range; ensures reliable triggering without premature conduction) |
| Clamping Voltage (VC) | ≤37.5V @ 16.0A (maximum voltage seen by protected circuit during worst-case 10/1000μs surge) |
| Peak Pulse Current (IPP) | 16.0A (surge current level at which VC is specified; correlates to IEC 61000-4-5 Level 3 immunity) |
| Leakage Current (IR) | ≤5.0μA @ VRWM (negligible loading on 24V systems; avoids false trips or battery drain) |
| Package Thermal Resistance (RθJA) | 75°C/W (dictates required PCB copper area and airflow for thermal management) |
Pinout & Package
Package: DO-15 molded plastic case (UL 94V-0), 0.4g weight, with cathode band marking for unidirectional polarity. Leads are solderable per MIL-STD-202, Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; establishes reference for clamping action |
| Cathode | Protected line input | Connected to line being protected (e.g., 24V rail); conducts surge current to ground when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Supports IEC 61000-4-5 10/1000μs surge testing up to 1kV open-circuit (with appropriate series impedance) |
| Glass-passivated die construction | Ensures long-term parameter stability and resistance to humidity-induced degradation in industrial environments |
| Fast response time (<1 ns) | Clamps transients before sensitive downstream ICs (e.g., microcontrollers, CAN transceivers) experience overstress |
| RoHS-compliant lead finish | Enables lead-free reflow assembly without compromising solder joint reliability or corrosion resistance |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24V DC input terminals of programmable logic controller modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point, upstream of DC-DC converter and isolation barrier. Use Value: Limits transient voltage to ≤37.5V, protecting 3.3V/5V logic supply rails and isolator inputs while surviving repeated 16A surges. | Use Scenario: LIN bus and power window motor driver circuits subject to ISO 7637-2 Pulse 1, 2a, and 5a. IC Role / Device Role / Timing Role: Unidirectional TVS on 12V battery feed to BCM power distribution ICs. Use Value: Clamps load dump spikes to safe levels without affecting normal 13.5–14.5V charging operation due to precise 28.4V VRWM. |
| Telecom Power Interface | Medical Equipment DC Input Stage |
Use Scenario: -48V DC power entry on telecom base station line cards receiving lightning-induced surges via outdoor cabling. IC Role / Device Role / Timing Role: First-stage protection before bulk capacitor and hot-swap controller. Use Value: Absorbs 600W surge energy without failure, maintaining ≤37.5V clamping to prevent damage to downstream PMICs and FET drivers. | Use Scenario: 24V auxiliary power input on diagnostic imaging equipment where EMI immunity must meet IEC 60601-1-2 4th edition. IC Role / Device Role / Timing Role: Secondary protection after gas discharge tube (GDT), providing fast low-voltage clamping. Use Value: Adds <1 ns response to complement GDT's slower arc initiation, ensuring sub-40V transient suppression during ESD and burst events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A-T | DO-214AA package; 24V VRWM; 38.9V VC @ 15.4A; lower RθJA (50°C/W) | Better thermal performance in space-constrained layouts; higher leakage (10μA) | Select when board real estate is limited and tighter thermal design is feasible. |
| 1.5KE27A-T | DO-201AD package; same 27V nominal rating; 41.5V VC @ 14.5A; 1500W rating | Higher surge capacity but larger footprint and slower response (~1.2ns) | Select when legacy DO-201AD mounting is required or 1.5kW single-event surge margin is needed. |
Compared with SMBJ24A-T and 1.5KE27A-T, P6KE27A-T offers optimal balance of DO-15 manufacturability, 28.4V VRWM headroom for 24V systems, and proven field reliability in high-volume industrial power designs - making it preferred where cost, legacy footprint, and consistent clamping are prioritized over ultra-low thermal resistance or extreme surge rating.
Availability
P6KE27A-T is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and telecom power interface designs requiring stable component supply and long-lifecycle support.
Supply support for P6KE27A-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.
The P6KE series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for robust, cost-effective primary-level surge protection in DC-powered systems operating from 6.8V to 400V.
FAQ
Is P6KE27A-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE27A-T (and entire P6KE6V8A–P6KE400A family) as of August 2024. Aetrix Electronics maintains limited legacy stock for ongoing production support and offers qualified alternatives with validated performance equivalence for new designs.
What is the maximum operating temperature for P6KE27A-T?
The P6KE27A-T is rated for junction and storage temperatures from –55°C to +175°C. Its steady-state power dissipation derates linearly above +25°C ambient, reaching zero at +175°C; full 5.0W rating is only valid at TL = +75°C with 9.5mm lead length and 40mm² copper pad.
Can P6KE27A-T be used in bidirectional configurations?
No - P6KE27A-T is unidirectional only (cathode-banded). The bidirectional variant is P6KE27CA-T, which lacks polarity marking and clamps symmetrically in both directions. Substituting one for the other without circuit review risks incorrect protection behavior on DC rails.
How does P6KE27A-T compare to polymer-based TVS devices?
P6KE27A-T uses silicon avalanche technology, delivering precise, repeatable clamping voltage (≤37.5V) and nanosecond response - unlike polymer TVS, which exhibit higher dynamic resistance and voltage overshoot. It is preferred where deterministic clamping and IEC 61000-4-5 compliance are mandatory, not for low-capacitance signal-line protection.
P6KE27A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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
P6KE27A-T FAQ
1.How can I place an order for P6KE27A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27A-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 P6KE27A-T reliable?
The price and inventory of P6KE27A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27A-T is usually 5 days.
3.What payment methods are accepted for P6KE27A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE27A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE27A-T?
P6KE27A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27A-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 P6KE27A-T?
For technical support, including P6KE27A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27A-T requirements.
6.How does Aetrix verify that P6KE27A-T is sourced from the original manufacturer or authorized distributors?
All P6KE27A-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 P6KE27A-T meets industry standards.
7.What is the process for return or replacement of P6KE27A-T?
All P6KE27A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27A-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 P6KE27A-T part is unused and in its original packaging.
Return procedure for P6KE27A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE27A-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
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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