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Vishay General Semiconductor - Diodes Division 5KP17A-E3/51
- Part No.:
- 5KP17A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP17A-E3/51.pdf
- Description:
- TVS DIODE 17VWM 27.6VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:3,533
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Product details
Overview
5KP17A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 17.0 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR) at 5.0 mA, 5000 W peak pulse power (10/1000 μs), 27.6 V maximum clamping voltage at 181 A, and operates across –55 °C to +175 °C junction temperature. It is used in automotive power supply outputs and industrial sensor interfaces to prevent damage from inductive switching transients.
For engineers reviewing the 5KP17A-E3/51 datasheet, 5KP17A-E3/51 pinout, 5KP17A-E3/51 application, or 5KP17A-E3/51 equivalent, this page delivers verified electrical parameters, P600 package dimensions, AEC-Q101 qualification status, clamping performance under 10/1000 μs surge, and direct alternatives with documented voltage and power differences - all validated against Vishay Document #88308 (Rev. 20-Nov-12).
Technical Context
This TVS diode employs a glass-passivated P600 chip junction optimized for high-energy transient suppression. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded. The device sustains 5000 W peak pulse power with <0.01% duty cycle and exhibits low incremental surge resistance for stable clamping under repetitive surges.
It meets JEDEC registered electrical characteristics per ANSI/IEEE C62.35, with 2.0 μA max reverse leakage at 17.0 V and a 0.097 %/°C temperature coefficient of VBR. The 175 °C max junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive environments and industrial power systems requiring long-term reliability under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 17.0 V - Maximum continuous reverse voltage before significant leakage; sets operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 18.9–20.9 V at 5.0 mA - Confirmed breakdown range defining reliable turn-on onset for transient suppression. |
| VC (Clamping Voltage) | 27.6 V at 181 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; critical for downstream IC survivability. |
| PPPM (Peak Pulse Power) | 5000 W - Energy-handling capacity for standardized 10/1000 μs waveform; defines single-event robustness. |
| ID (Reverse Leakage) | ≤2.0 μA at 17.0 V - Low leakage ensures minimal standby power loss and avoids false triggering in high-impedance nodes. |
| TJ max | +175 °C - Enables operation in engine control units, motor drives, and other high-temperature industrial locations. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; RoHS-compliant (E3 suffix); cathode indicated by color band. Dimensions: 9.5 mm length × 8.6 mm width × 9.1 mm height; lead spacing 9.1 mm; weight 2.776 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Cathode-referenced reference node | Connected to system ground or lower-potential rail in unidirectional configuration; defines clamping path direction. |
| Cathode | Transient energy sink / Clamping output node | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VAK ≥ VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables protection against severe load-dump and ISO 7637-2 Pulse 5a transients without degradation. |
| P600 glass-passivated junction | Delivers stable VBR and low leakage over lifetime, even under humidity and thermal cycling stress. |
| AEC-Q101 qualification | Confirms suitability for automotive powertrain and body electronics where field failure is unacceptable. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFETs and microcontrollers during clamping events. |
| 175 °C max junction temperature | Supports placement near heat sources (e.g., power inductors, regulators) without derating penalties. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients up to 35 V and 100 ms duration. IC Role / Device Role / Timing Role: Primary clamping element placed between input rail and ground, absorbing >95% of surge energy before downstream LDOs or MCUs are stressed. Use Value: Prevents latch-up or gate oxide rupture in automotive microcontrollers by limiting rail voltage to ≤27.6 V during 181 A surge events. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC I/O modules from ESD and relay-switching noise. IC Role / Device Role / Timing Role: Unidirectional shunt protector on signal line referenced to local ground, activated within <1 ns of overvoltage onset. Use Value: Maintains signal integrity by clamping transients to <28 V while adding only 1.5 pF junction capacitance at zero bias - no bandwidth degradation. |
| Switching Power Supply Output Clamp | MOSFET Gate Driver Protection |
Use Scenario: Replacing crowbar circuits on 24 V/48 V telecom and industrial SMPS outputs to avoid permanent shutdown during overvoltage. IC Role / Device Role / Timing Role: Fast-acting voltage clamp that diverts excess energy to ground, allowing fuse/breaker time to clear fault while preserving system uptime. Use Value: Enables automatic recovery after transient event due to non-destructive, self-resetting behavior - unlike fuses or thyristors. |
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers in motor inverters from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: Low-inductance P600 package placed directly across gate-source terminals to clamp dv/dt-induced overshoot. Use Value: Limits gate-source voltage to ≤27.6 V, preventing gate oxide breakdown and ensuring reliable 100 kHz+ PWM operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A | Lower PPPM (600 W), smaller SMB package, same VWM (17 V), higher VC (27.7 V at 21.2 A) | Better suited for space-constrained PCBs with moderate surge exposure (IEC 61000-4-5 Level 2), not load-dump grade | Select SMBJ17A only if peak surge current remains <25 A and board area is critical; 5KP17A-E3/51 required for >150 A events. |
| 1.5KE18A | Same VWM (17 V), lower PPPM (1500 W), DO-201 package, higher VC (27.7 V at 54.3 A) | Valid for consumer-grade power supplies but lacks AEC-Q101 qualification and thermal robustness for automotive use | Choose 1.5KE18A for cost-sensitive non-automotive designs; 5KP17A-E3/51 is mandatory where AEC-Q101 or 5000 W rating is specified. |
Compared with SMBJ17A and 1.5KE18A, the 5KP17A-E3/51 delivers 3.3× and 3.3× higher peak pulse power respectively, maintains AEC-Q101 compliance, and supports sustained thermal dissipation up to 175 °C - making it the sole choice for automotive load-dump and industrial high-energy surge protection.
Availability
5KP17A-E3/51 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power supply designs requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 5KP17A-E3/51 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, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering 5 kW surge capability in the rugged P600 package with AEC-Q101 validation.
FAQ
What is the clamping voltage of the 5KP17A-E3/51 under a 10/1000 μs surge?
The 5KP17A-E3/51 has a maximum clamping voltage (VC) of 27.6 V when subjected to its rated peak pulse current of 181 A with a 10/1000 μs waveform. This value is measured per JEDEC test conditions and guarantees the protected circuit will not experience more than 27.6 V during such an event. The 5KP17A-E3/51 achieves this with low incremental surge resistance, ensuring consistent clamping performance across multiple transients.
Is the 5KP17A-E3/51 suitable for automotive applications?
Yes, the 5KP17A-E3/51 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its –55 °C to +175 °C operating junction temperature range, glass-passivated P600 junction, and validation against temperature cycling, HTRB, and ESD tests meet automotive reliability requirements. The 5KP17A-E3/51 is commonly deployed in engine control units and body electronics for load-dump protection.
What does the "E3/51" suffix mean in 5KP17A-E3/51?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "/51" denotes the preferred packaging code - in this case, 500 pieces per 13-inch paper tape and reel. This differs from /54 (800 pieces/reel) and confirms the 5KP17A-E3/51 is supplied in industry-standard surface-mount ready format with full traceability and moisture sensitivity level (MSL) documentation.
How does the 5KP17A-E3/51 compare to bidirectional TVS diodes?
The 5KP17A-E3/51 is unidirectional and intended for DC-biased circuits where reverse conduction must be blocked until clamping occurs. Unlike bidirectional variants (e.g., 5KP17CA), it provides no protection against negative-going transients - making it ideal for positive-rail protection in automotive 12 V systems. Its lower leakage and sharper knee characteristic improve efficiency in steady-state operation compared to bidirectional equivalents.
Can the 5KP17A-E3/51 replace older 1.5KE-series TVS diodes?
The 5KP17A-E3/51 can functionally replace 1.5KE18A in many applications due to matching VWM (17 V) and similar clamping voltage, but it is not a drop-in replacement: it uses the larger P600 package versus DO-201, requiring PCB layout changes. Its 5000 W rating far exceeds the 1.5KE18A's 1500 W, so the 5KP17A-E3/51 is appropriate only where higher surge immunity is needed - always verify thermal pad design and mounting surface for the P600 footprint when upgrading.
5KP17A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 181A
- 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
5KP17A-E3/51 FAQ
1.How can I place an order for 5KP17A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP17A-E3/51 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 5KP17A-E3/51 reliable?
The price and inventory of 5KP17A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP17A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP17A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP17A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP17A-E3/51?
5KP17A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP17A-E3/51 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 5KP17A-E3/51?
For technical support, including 5KP17A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP17A-E3/51 requirements.
6.How does Aetrix verify that 5KP17A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP17A-E3/51 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 5KP17A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP17A-E3/51?
All 5KP17A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP17A-E3/51, 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 5KP17A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP17A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP17A-E3/51 Tags
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