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Diodes Incorporated P6KE11A-T
- Part No.:
- P6KE11A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE11A-T.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:9,435
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Product details
Overview
P6KE11A-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 9.4V reverse standoff voltage (VRWM), 10.5V minimum breakdown voltage (VBR), 15.6V maximum clamping voltage (VC) at 38A peak pulse current, and DO-15 package construction-used in industrial power supplies and automotive body electronics to absorb ESD and lightning-induced surges.
For engineers reviewing the P6KE11A-T datasheet, P6KE11A-T pinout, P6KE11A-T application, or P6KE11A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, peak pulse current capability under IEC 61000-4-5 surge waveforms, thermal derating above +25°C ambient, and unidirectional polarity alignment with DC-biased circuits.
Technical Context
This TVS operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown threshold (10.5–11.6V), it avalanches into low-impedance conduction to divert surge current away from downstream components. Its glass-passivated junction ensures stable leakage and repeatable clamping performance across temperature.
The device is rated for 600W non-repetitive peak pulse power (10/1000µs waveform), supports 100A forward surge current (8.3ms half-sine), and exhibits ≤5.0µA reverse leakage at VRWM-enabling reliable operation in 12V automotive and 12–24V industrial control systems without standby power penalty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (10/1000µs waveform); sustains single high-energy transients without failure |
| Reverse Standoff Voltage (VRWM) | 9.4V; maximum continuous DC voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 10.5–11.6V @ 1mA; precise avalanche initiation threshold for predictable clamping onset |
| Clamping Voltage (VC) | 15.6V @ 38A IPP; limits voltage seen by protected circuit during worst-case surge |
| Package | DO-15; axial-leaded, through-hole mountable with 0.4g mass and UL 94V-0 flammability rating |
| Thermal Resistance (RθJA) | 75°C/W; defines junction-to-ambient temperature rise under steady-state power dissipation |
| Operating Temperature | −55°C to +175°C; qualified for under-hood automotive and high-temp industrial environments |
Pinout & Package
DO-15 package: axial-leaded, molded plastic body with cathode band marking. Leads are tin-plated, solderable per MIL-STD-202 Method 208; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during reverse-bias surge | Connected to protected line; conducts avalanche current to ground path |
| Cathode | Reference terminal / polarity indicator | Marked with band; ties to system ground or lower-potential rail for unidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power rating | Enables robust protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 12V rails |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift over temperature and time |
| Fast response time (<1ps) | Clamps transients before sensitive downstream ICs experience overvoltage stress |
| RoHS-compliant lead finish | Meets EU Directive 2011/65/EU with full exemption documentation for halogen-free manufacturing |
| Unidirectional configuration | Prevents reverse conduction in DC-biased applications-no DC blocking capacitor required |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power pins from load-dump and jump-start transients in 12V vehicle electrical systems. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between VBAT and GND, operating in avalanche breakdown mode during >13.2V events. Use Value: Clamps peak voltage to 15.6V at 38A, keeping protected 16V-rated MCU IO within safe operating area during ISO 7637-2 Pulse 5a (35V/100ms). |
Use Scenario: Shields 24V digital input optocoupler front-end from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24V supply rail feeding isolated input stage; responds within picoseconds to fast-rising transients. Use Value: Limits transient excursion to ≤15.6V, preventing optocoupler LED overcurrent and input comparator latch-up during IEC 61000-4-4 EFT bursts. |
| Telecom Power Feeder Protection | Medical Equipment AC/DC Adapter Input |
Use Scenario: Installed on -48V telecom power distribution board to guard against lightning-induced common-mode surges entering via copper pairs. IC Role / Device Role / Timing Role: Unidirectional TVS tied between -48V rail and chassis ground; conducts only during positive-going transients exceeding VRWM. Use Value: Absorbs 600W surge energy while maintaining clamping below −35V, preserving -48V system integrity and downstream DC/DC converter input rating. |
Use Scenario: Mounted across primary-side rectifier output in Class II medical AC/DC adapters to suppress switching noise and external line surges. IC Role / Device Role / Timing Role: Secondary-stage transient limiter after bridge rectifier; handles repetitive 10/1000µs surges up to 38A without degradation. Use Value: Provides 15.6V clamping ceiling that prevents overvoltage stress on bulk capacitor and primary controller IC during EN 61000-4-5 testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | DO-214AA package; 10V VRWM; 17.0V VC @ 35.3A; 600W rating | Surface-mount footprint; higher thermal resistance (RθJA = 110°C/W) than DO-15 | Select for space-constrained PCBs where reflow assembly is preferred over through-hole mounting |
| P6KE10A-T | 9.0V VRWM; 10.0–11.1V VBR; 14.5V VC @ 41.0A; identical DO-15 package | Lower clamping voltage but reduced standoff margin for 12V systems with tight tolerance rails | Choose when protecting 10–11V logic rails where tighter clamping margin outweighs VRWM headroom needs |
Compared with P6KE11A-T, SMBJ10A offers SMT compatibility at the cost of thermal performance, while P6KE10A-T trades 0.4V higher VRWM margin for 1.1V lower clamping-making P6KE11A-T optimal for 12V systems requiring both robust standoff and controlled clamping.
Availability
P6KE11A-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input protection, and telecom power feeder applications requiring stable component supply despite its obsolete status-inventory is secured for legacy program continuity and repair fulfillment.
Supply support for P6KE11A-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 high-energy surge immunity in automotive, industrial, and telecom infrastructure-emphasizing reliability under harsh thermal and electrical stress.
FAQ
Is P6KE11A-T still in active production?
No-P6KE11A-T is officially obsolete per Diodes Incorporated's DS21502 Rev. 20-4 (August 2024). However, Aetrix Electronics maintains secured legacy inventory with full traceability and extended availability support for ongoing production and repair programs.
What is the difference between P6KE11A-T and P6KE11CA-T?
P6KE11A-T is unidirectional (cathode-banded), intended for DC-biased lines where only positive transients require suppression. P6KE11CA-T is bidirectional (no cathode band), symmetrically clamps both polarities-used in AC-coupled or floating signal paths like RS-485 data lines.
Can P6KE11A-T be used in place of P6KE10A-T?
Yes, with design validation: P6KE11A-T has 0.4V higher VRWM (9.4V vs. 9.0V), offering greater margin against normal operating voltage variation, but its 15.6V clamping is 1.1V higher than P6KE10A-T's 14.5V-verify protected IC absolute maximum ratings accordingly.
What is the maximum allowable PCB pad size for DO-15 thermal relief?
For optimal thermal performance at TL = +75°C, Diodes specifies a copper land area of 40mm² per lead. Pad dimensions should allow ≥9.5mm lead length exposure beyond solder joint; typical layout uses 2.5mm × 10mm pads with 2.0mm clearance to adjacent traces.
P6KE11A-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38A
- 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
P6KE11A-T FAQ
1.How can I place an order for P6KE11A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE11A-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 P6KE11A-T reliable?
The price and inventory of P6KE11A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE11A-T is usually 5 days.
3.What payment methods are accepted for P6KE11A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE11A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE11A-T?
P6KE11A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE11A-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 P6KE11A-T?
For technical support, including P6KE11A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE11A-T requirements.
6.How does Aetrix verify that P6KE11A-T is sourced from the original manufacturer or authorized distributors?
All P6KE11A-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 P6KE11A-T meets industry standards.
7.What is the process for return or replacement of P6KE11A-T?
All P6KE11A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE11A-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 P6KE11A-T part is unused and in its original packaging.
Return procedure for P6KE11A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE11A-T Tags
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ESD9B5.0ST5G
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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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Diodes Incorporated
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