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Diodes Incorporated P6KE250A-T
- Part No.:
- P6KE250A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE250A-T.pdf
- Description:
- TVS DIODE 214VWM 344VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:7,641
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Product details
Overview
P6KE250A-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 214 V reverse standoff voltage (VRWM), 237–263 V breakdown range (VBR), 344 V max clamping voltage (VC) at 1.75 A peak pulse current, and DO-15 glass-passivated package-used in industrial power supplies and telecom interface protection.
For engineers reviewing the P6KE250A-T datasheet, P6KE250A-T pinout, P6KE250A-T application, or P6KE250A-T equivalent, key selection criteria include clamping ratio (VC/VRWM ≈ 1.61), low leakage (<5 µA @ 214 V), fast response time (<1.0 ps), and compatibility with IEC 61000-4-2 Level 4 ESD and IEC 61000-4-5 surge immunity requirements.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered by transient overvoltage events exceeding its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low thermal drift across –55°C to +175°C operating range.
The device delivers 600 W peak pulse power (tP = 1.0 ms, 10/1000 µs waveform) with 20 °C/W junction-to-case thermal resistance, enabling reliable energy absorption without thermal runaway when mounted on ≥40 mm² copper land.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - Sustains single 1.0 ms transient surges per IEC 61000-4-5 without degradation. |
| Reverse Standoff Voltage (VRWM) | 214 V - Maximum continuous DC or RMS voltage before significant leakage; sets operating margin below breakdown. |
| Breakdown Voltage (VBR) | 237–263 V @ 1.0 mA - Tight 5% tolerance window ensures predictable turn-on during transients. |
| Max Clamping Voltage (VC) | 344 V @ 1.75 A - Limits protected circuit voltage during worst-case surge, defining downstream component stress. |
| Peak Pulse Current (IPP) | 1.75 A - Peak current handled at VC; correlates directly to surge energy (≈1.2 J for 1.0 ms pulse). |
| Leakage Current (IR) | <5 µA @ 214 V - Ensures minimal standby power loss and no false triggering in high-impedance circuits. |
| Junction Temperature Range | –55°C to +175°C - Supports operation in under-hood automotive, industrial motor drives, and outdoor telecom enclosures. |
Pinout & Package
Package: DO-15 molded plastic case (UL 94V-0), 0.4 g weight, with axial leads. Cathode identified by band marking. Compatible with wave and reflow soldering per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage event. |
| Cathode | Protected line connection | Connected to line being protected (e.g., +24 V rail); blocks normal operation, conducts during surge. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term VBR stability and reduced parameter drift under thermal cycling and humidity exposure. |
| 600 W peak pulse rating | Meets IEC 61000-4-5 surge immunity up to 4 kV (line-earth) in properly designed PCB layouts. |
| Fast response time (<1.0 ps) | Clamps transients before sensitive downstream ICs (e.g., RS-485 transceivers, MCU I/O) experience overstress. |
| RoHS-compliant lead finish | Enables compliance with environmental regulations without compromising solderability or intermetallic formation. |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Primary overvoltage clamp limiting rail excursion to ≤344 V during 1.0 ms surges. Use Value: Prevents damage to upstream rectifier diodes and downstream DC-DC controllers rated for ≤360 V absolute maximum. |
Use Scenario: T1/E1 line driver output in base station equipment subject to lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Unidirectional shunt protector placed before transformer coupling network. Use Value: Maintains signal integrity by clamping common-mode surges while adding <1 pF capacitance at 214 V bias. |
| Automotive Body Control Module | Renewable Energy Inverter DC Link |
Use Scenario: 12 V battery-supplied microcontroller I/O line in BCM subjected to ISO 7637-2 Pulse 1 and Pulse 2a transients. IC Role / Device Role / Timing Role: Secondary-level protection after LC filter, absorbing residual energy not filtered. Use Value: Reduces risk of latch-up or gate oxide rupture in 5 V tolerant GPIOs by limiting voltage to 344 V for ≤1 ms. |
Use Scenario: DC bus monitoring node in solar string inverter where PV array voltage reaches 1000 VDC. IC Role / Device Role / Timing Role: Auxiliary overvoltage detector element tied to isolated voltage divider feedback path. Use Value: Provides fail-safe shutdown trigger if bus exceeds 250 V due to regenerative braking or MPPT error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ250A-T | Same VRWM (250 V) and VC (344 V), but SMB package (surface-mount), 600 W rating, lower RθJA (50 °C/W vs. 75 °C/W). | Preferred for automated SMT assembly and space-constrained boards; requires thermal pad design for full power rating. | Select when board real estate or assembly process favors SMD over axial leaded components. |
| P6KE250CA-T | Bidirectional variant; identical VRWM (214 V), VBR (237–263 V), VC (344 V), but symmetrical clamping for AC or dual-rail use. | Required for protecting AC-coupled signals (e.g., Ethernet PHY, audio lines) or ±12 V rails where polarity reversal occurs. | Choose only when bidirectional clamping is mandatory; unidirectional P6KE250A-T offers lower cost and simpler layout for DC rails. |
Compared with SMBJ250A-T, P6KE250A-T provides proven reliability in through-hole power supply designs with higher mechanical robustness; compared with P6KE250CA-T, it avoids unnecessary capacitance doubling and simplifies grounding in single-polarity systems.
Availability
P6KE250A-T is available at Aetrix Electronics and suitable for industrial power supply protection, telecom line interface, and automotive body control module applications requiring stable component supply and legacy-design continuity.
Supply support for P6KE250A-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 North America.
The P6KE series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for cost-sensitive, high-reliability overvoltage protection in industrial, telecom, and automotive power systems.
FAQ
Is P6KE250A-T still in active production?
No-P6KE250A-T is officially obsolete per Diodes Incorporated's DS21502 Rev. 20-4 (August 2024). It remains available through Aetrix Electronics' legacy inventory and authorized distributor channels, with full traceability and documented lot history for ongoing production builds.
What is the maximum surge current P6KE250A-T can handle at 8.3 ms?
P6KE250A-T supports 100 A peak forward surge current (IFSM) for an 8.3 ms half-sine wave at 4 pulses per minute, per its Absolute Maximum Ratings table-validating suitability for repetitive load-dump events in 12 V/24 V automotive systems.
Can P6KE250A-T be used in parallel for higher power handling?
No-parallel connection of TVS diodes like P6KE250A-T is not recommended due to VBR mismatch causing current imbalance; derating and thermal coupling issues make it unreliable. Use a single higher-rated device (e.g., 1.5KE250A) instead.
Does P6KE250A-T meet AEC-Q200 stress testing requirements?
P6KE250A-T is not AEC-Q200 qualified. While Diodes offers AEC-Q200 versions in other families (e.g., SMAJ-Q series), this part is intended for industrial and commercial applications; automotive use requires explicit qualification confirmation from Diodes.
P6KE250A-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):
- 214V
- Voltage - Breakdown (Min):
- 237V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 1.75A
- 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
P6KE250A-T FAQ
1.How can I place an order for P6KE250A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE250A-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 P6KE250A-T reliable?
The price and inventory of P6KE250A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE250A-T is usually 5 days.
3.What payment methods are accepted for P6KE250A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE250A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE250A-T?
P6KE250A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE250A-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 P6KE250A-T?
For technical support, including P6KE250A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE250A-T requirements.
6.How does Aetrix verify that P6KE250A-T is sourced from the original manufacturer or authorized distributors?
All P6KE250A-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 P6KE250A-T meets industry standards.
7.What is the process for return or replacement of P6KE250A-T?
All P6KE250A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE250A-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 P6KE250A-T part is unused and in its original packaging.
Return procedure for P6KE250A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE250A-T Tags
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