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Diodes Incorporated P6KE56A-T
- Part No.:
- P6KE56A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE56A-T.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:8,937
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Product details
Overview
P6KE56A-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 47.8V reverse standoff voltage (VRWM), 53.2V minimum breakdown voltage (VBR), 77.0V maximum clamping voltage (VC) at 7.8A peak pulse current, and DO-15 glass-passivated package-used in industrial power supplies, automotive body control modules, and telecom interface protection.
For engineers reviewing the P6KE56A-T datasheet, P6KE56A-T pinout, P6KE56A-T application, or P6KE56A-T equivalent, this page delivers verified electrical parameters, clamping performance under 1.0ms 8/20μs surge, thermal derating behavior, and direct substitution guidance for legacy 56V TVS designs requiring RoHS-compliant, lead-free, AEC-Q200-aligned protection.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt device triggered by transient overvoltage exceeding its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (≤5.0μA @ VRWM), while the DO-15 package provides mechanical robustness and thermal path integrity to copper land.
The device responds within <1.0ns to ESD and lightning-induced surges, delivering 600W peak pulse power (tP = 1.0ms) with clamping ratio VC/VBR ≈ 1.45-critical for protecting downstream MOSFETs, controllers, and communication ICs without overstressing their absolute maximum ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms 10/1000μs waveform); sustains single-event surge energy up to 0.6J without failure |
| Reverse Standoff Voltage | 47.8V (VRWM); maximum continuous DC or RMS voltage before significant leakage or conduction begins |
| Breakdown Voltage | 53.2V min @ IT = 1.0mA; defines precise turn-on threshold for reliable clamping onset |
| Clamping Voltage | 77.0V max @ IPP = 7.8A; limits protected circuit voltage during worst-case surge |
| Peak Pulse Current | 7.8A (unidirectional); peak current the device safely diverts while maintaining specified VC |
| Leakage Current | ≤5.0μA @ VRWM; ensures minimal standby power loss and no false triggering in low-power systems |
| Package | DO-15; industry-standard axial leaded package with 0.4g mass, UL 94V-0 rated molding compound |
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; typical thermal resistance RθJA = 75°C/W on FR-4 board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to system ground or low-side return; defines polarity-sensitive surge path |
| Cathode | Protected line connection point | Connected to rail under protection (e.g., +12V supply); conducts surge current to ground when VRWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables protection against IEC 61000-4-5 Level 4 (4kV/2Ω) surges on 12–48V DC rails |
| Glass-passivated junction | Ensures long-term VBR stability and reduced parameter drift across temperature (-55°C to +175°C) |
| Fast response time <1.0ns | Clamps transients before sensitive ICs experience overvoltage stress-critical for CAN, RS-485, and MCU I/O |
| RoHS-compliant, lead-free finish | Meets EU Directive 2011/65/EU with full exemption documentation; supports green manufacturing requirements |
| Moisture sensitivity Level 1 | Eliminates need for dry-pack or baking prior to SMT reflow-reduces production overhead and handling risk |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
|
Use Scenario: 24V 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 shunt TVS placed upstream of DC-DC converter input to clamp surges before they reach regulation circuitry. Use Value: Limits transient voltage to ≤77V, preventing damage to 100V-rated input capacitors and high-side MOSFETs during 12V/24V load dump events. |
Use Scenario: LIN bus line protection in door module ECUs subject to battery reversal and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamping element on LIN TX/RX line referenced to chassis ground. Use Value: Maintains signal integrity below LIN physical layer's 40V abs max rating while surviving 100V/500ms reverse battery pulses. |
| Telecom Interface Surge Protection | Renewable Energy Charge Controller |
|
Use Scenario: RS-485 data line in outdoor base station equipment subjected to induced lightning surges via long cable runs. IC Role / Device Role / Timing Role: Line-to-ground TVS on differential pair, paired with common-mode choke and secondary TVS. Use Value: Clamps common-mode surges to <77V within nanoseconds, preserving transceiver operation and avoiding latch-up in isolated UART interfaces. |
Use Scenario: PV array input stage of solar charge controller where open-circuit voltage reaches 50–60V under cold conditions. IC Role / Device Role / Timing Role: Overvoltage clamp on MPPT input to protect buck converter MOSFETs and sensing resistors. Use Value: Prevents destructive gate oxide breakdown in 60V-rated N-channel FETs during rapid PV voltage spikes caused by cloud-edge effects. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A-T | DO-214AA package; 58V VRWM; 64.4V VC @ 9.3A; 600W rating; lower RθJA (50°C/W) | Surface-mount layout; better thermal performance on dense PCBs; requires rework of footprint and stencil | Select for new SMT designs needing higher reliability under sustained ambient >85°C |
| 1.5KE56A-T | Same DO-15 package; 56V VRWM; 77V VC @ 7.8A; identical clamping but 1.5kW peak rating (10× higher energy capacity) | Higher surge margin for utility-grade AC/DC front-ends or railway power inputs with repetitive surges | Choose when system-level testing reveals marginal margin with P6KE56A-T under multi-pulse stress |
Compared with SMBJ58A-T and 1.5KE56A-T, P6KE56A-T offers optimal cost-performance balance for discrete through-hole protection in non-repetitive surge environments-retaining proven DO-15 manufacturability while meeting IEC 61000-4-5 compliance at lower BOM cost than SMT alternatives.
Availability
P6KE56A-T is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, and telecom interface surge protection requiring stable component supply and legacy-compatible axial packaging.
Supply support for P6KE56A-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.
P6KE56A-T belongs to Diodes' P6KE series of 600W unidirectional TVS diodes-engineered for cost-effective, high-reliability overvoltage protection in automotive, industrial, and communications infrastructure applications.
FAQ
Is P6KE56A-T still in active production?
No-P6KE56A-T is officially obsolete per Diodes Incorporated's DS21502 Rev. 20-4 (August 2024). Aetrix Electronics maintains limited legacy stock for last-time buy and repair programs, with full traceability and date-code verification. Engineering teams are advised to evaluate SMBJ58A-T or 1.5KE56A-T for new designs.
What is the maximum operating temperature for P6KE56A-T?
P6KE56A-T has an operating junction temperature range of –55°C to +175°C. Its steady-state power dissipation is derated linearly above +25°C ambient, reaching 0W at +175°C ambient when mounted on a 40mm² copper land (RθJA = 75°C/W). Thermal design must account for pulse duty cycle and PCB copper area.
Can P6KE56A-T be used for bidirectional protection?
No-P6KE56A-T is unidirectional only, indicated by the absence of "C" suffix. For bidirectional protection at the same voltage level, use P6KE56CA-T, which has symmetric clamping in both polarities and identical VRWM/VBR/VC specs but double the IR limit for VR ≤10V devices (not applicable here).
How does P6KE56A-T compare to P6KE56CA-T in surge handling?
Both share identical peak pulse power (600W), clamping voltage (77.0V), and breakdown voltage (53.2V min). The key difference is polarity: P6KE56A-T clamps only positive transients relative to cathode; P6KE56CA-T clamps ± transients. Bidirectional use increases capacitance slightly but enables AC line or floating-bus protection without polarity constraints.
P6KE56A-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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 7.8A
- 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
P6KE56A-T FAQ
1.How can I place an order for P6KE56A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE56A-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 P6KE56A-T reliable?
The price and inventory of P6KE56A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE56A-T is usually 5 days.
3.What payment methods are accepted for P6KE56A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE56A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE56A-T?
P6KE56A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE56A-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 P6KE56A-T?
For technical support, including P6KE56A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE56A-T requirements.
6.How does Aetrix verify that P6KE56A-T is sourced from the original manufacturer or authorized distributors?
All P6KE56A-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 P6KE56A-T meets industry standards.
7.What is the process for return or replacement of P6KE56A-T?
All P6KE56A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE56A-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 P6KE56A-T part is unused and in its original packaging.
Return procedure for P6KE56A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE56A-T Tags
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ESD9B5.0ST5G
onsemi
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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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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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