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Vishay General Semiconductor - Diodes Division 5KP26-E3/73
- Part No.:
- 5KP26-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP26-E3/73.pdf
- Description:
- TVS DIODE 26VWM 46.6VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:4,375
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Product details
Overview
5KP26-E3/73 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 26 V standoff voltage (VWM), 42.1 V clamping voltage (VC) at 119 A peak pulse current, and 5000 W peak pulse power dissipation with a 10/1000 μs waveform - suitable for automotive power supply output protection and industrial motor drive I/O line safeguarding.
For engineers reviewing the 5KP26-E3/73 datasheet, 5KP26-E3/73 pinout, 5KP26-E3/73 application, or 5KP26-E3/73 equivalent, key selection criteria include its P600 package thermal performance, AEC-Q101 qualification for automotive use, unidirectional polarity, 175 °C maximum junction temperature, and low incremental surge resistance enabling robust clamping under repetitive transients.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device, entering avalanche breakdown when reverse voltage exceeds its 28.9–31.9 V breakdown range (VBR at 5.0 mA). Its glass-passivated P600 junction delivers fast response time (<1 ns) and stable clamping during 10/1000 μs surges, with minimal capacitance (<100 pF at VWM) preserving signal integrity on protected lines.
Thermally rated for 8.0 W continuous power dissipation on an infinite heatsink at 75 °C lead temperature, it supports high-reliability mounting on copper pour or chassis heatsinking. The device meets JESD 201 Class 1A whisker resistance and UL 94 V-0 flammability requirements, confirming suitability for safety-critical automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 26.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VC (Clamping Voltage) | 42.1 V at 119 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 5000 W - Sustains single high-energy transients without failure; enables replacement of mechanical crowbar circuits. |
| IPPM (Peak Pulse Current) | 119 A - Maximum non-repetitive surge current handled; validates compatibility with IEC 61000-4-5 Level 4 (4 kV/2 Ω). |
| TJmax | 175 °C - Enables operation in under-hood automotive locations and high-ambient industrial enclosures. |
| Polarity | Unidirectional - Protects only against reverse-polarity overvoltage; requires correct cathode orientation in series with positive rail. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test standard; supports PPAP documentation and long-term reliability claims. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; cathode denoted by color band; RoHS-compliant (E3 suffix); UL 94 V-0 rated; 9.5 mm body length, 8.6 mm body width, 1.32 mm lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during avalanche conduction. |
| Cathode | High-side connection point | Connected to protected line (e.g., +24 V rail); color band identifies this terminal for correct PCB placement. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power | Enables single-device protection against severe lightning-induced surges (IEC 61000-4-5) without parallel staging. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping precision and downstream IC survivability. |
| AEC-Q101 qualification | Confirms reliability for automotive powertrain and body control modules requiring zero-failure field performance. |
| 175 °C junction rating | Supports direct mounting on hot surfaces (e.g., near power MOSFETs or DC-DC converters) without derating penalties. |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for enclosed industrial equipment and EV charging infrastructure. |
Applications
| Automotive Power Supply Output Protection | Industrial Motor Drive I/O Line Protection |
|---|---|
|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump transients (ISO 7637-2 Pulse 5a, up to 60 V/100 ms). IC Role / Device Role / Timing Role: Unidirectional TVS placed across main DC input rail to clamp overvoltage before reaching LDOs and microcontrollers. Use Value: Clamps to 42.1 V within nanoseconds, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. |
Use Scenario: Safeguarding analog sensor inputs (e.g., current shunt amplifiers) in variable-frequency drives exposed to inductive switching noise. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb coupled EFT bursts (IEC 61000-4-4) and commutation spikes. Use Value: Limits transient voltage to <43 V while maintaining sub-100 pF capacitance, avoiding signal distortion in 10 kHz bandwidth sensors. |
| Telecom DC Feeder Protection | Switched-Mode Power Supply Output Crowbar |
|
Use Scenario: Shielding -48 V telecom rectifier outputs from lightning-induced surges on outdoor plant wiring. IC Role / Device Role / Timing Role: Primary overvoltage suppression stage upstream of DC-DC converters feeding base station radios. Use Value: Withstands 5000 W pulses without degradation, eliminating need for sacrificial fusing and enabling automatic system recovery. |
Use Scenario: Replacing SCR-based crowbar circuits in 12–48 V SMPS units to prevent catastrophic overvoltage during feedback loop failure. IC Role / Device Role / Timing Role: Self-resetting voltage clamp that conducts only during fault, allowing fuse/breaker interruption without device destruction. Use Value: Delivers 119 A peak current capability while limiting clamped voltage to 42.1 V - sufficient to trigger OCP before downstream MOSFET avalanche. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A-E3/52 | Lower peak power (600 W), smaller SMB package, same 26 V VWM, higher VC (42.8 V at 12.9 A) | Targeted at board-level signal line protection, not primary DC rail clamping | Select when space-constrained layouts require surface-mount packaging and surge energy is ≤100 mJ |
| 1.5KE27A | Same P600 package, lower peak power (1500 W), 27 V VWM, 43.5 V VC at 34.7 A | Limited to lower-energy transients (e.g., ESD, contact discharge) | Choose for cost-sensitive industrial controls where IEC 61000-4-5 compliance is not required |
Compared with 5KP26-E3/73, SMBJ26A-E3/52 offers compactness at the expense of energy handling, while 1.5KE27A reduces cost but cannot sustain automotive load dump events - making 5KP26-E3/73 the sole choice for 5000 W, AEC-Q101-compliant primary rail protection.
Availability
5KP26-E3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, telecom DC feeder systems, and switched-mode power supply output protection requiring stable component supply and full traceability.
Supply support for 5KP26-E3/73 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade validation.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, targeting replacement of legacy crowbar circuits with self-resetting, high-power TVS solutions.
FAQ
What is the clamping voltage of the 5KP26-E3/73 under a standard 10/1000 μs surge?
The 5KP26-E3/73 clamps to a maximum of 42.1 V when subjected to its rated 119 A peak pulse current with a 10/1000 μs waveform. This value is measured per JEDEC standards and represents the upper limit of voltage imposed on the protected circuit during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 5KP26-E3/73 suitable for automotive applications?
Yes, the 5KP26-E3/73 carries AEC-Q101 qualification and is explicitly rated for automotive use, including under-hood environments. Its 175 °C maximum junction temperature, robust P600 package, and validated performance under load dump conditions (ISO 7637-2 Pulse 5a) make it appropriate for engine control units, body control modules, and ADAS power supplies.
How does the 5KP26-E3/73 differ from the 5KP26A variant?
The 5KP26-E3/73 is a specific tape-and-reel packaging variant of the 5KP26A base device, with E3 denoting RoHS-compliant matte tin plating and /73 indicating a 7-inch reel packaging code. Electrically and thermally, 5KP26-E3/73 is identical to 5KP26A - no parameter differences exist between the two designations.
What is the maximum continuous power dissipation for the 5KP26-E3/73?
The 5KP26-E3/73 dissipates up to 8.0 W continuously when mounted on an infinite heatsink at a lead temperature (TL) of 75 °C. Derating is required above 25 °C ambient, following the curve in Figure 5 of the Vishay datasheet 88308 - at 100 °C ambient, usable power drops to approximately 4.5 W.
Does the 5KP26-E3/73 have bidirectional capability?
No, the 5KP26-E3/73 is unidirectional only, as confirmed in the Vishay datasheet features section. It protects against reverse-biased overvoltage events only - forward conduction occurs above ~3.5 V (VF at 100 A), but it is not rated for bidirectional surge suppression. For AC or dual-polarity protection, a separate bidirectional part such as 5KP26CA must be selected.
5KP26-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 46.6V
- Current - Peak Pulse (10/1000µs):
- 107A
- Power - Peak Pulse:
- 5000W (5kW)
- 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:
- P600
5KP26-E3/73 FAQ
1.How can I place an order for 5KP26-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP26-E3/73 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 5KP26-E3/73 reliable?
The price and inventory of 5KP26-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP26-E3/73 is usually 5 days.
3.What payment methods are accepted for 5KP26-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP26-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP26-E3/73?
5KP26-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP26-E3/73 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 5KP26-E3/73?
For technical support, including 5KP26-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP26-E3/73 requirements.
6.How does Aetrix verify that 5KP26-E3/73 is sourced from the original manufacturer or authorized distributors?
All 5KP26-E3/73 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 5KP26-E3/73 meets industry standards.
7.What is the process for return or replacement of 5KP26-E3/73?
All 5KP26-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP26-E3/73, 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 5KP26-E3/73 part is unused and in its original packaging.
Return procedure for 5KP26-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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