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Vishay General Semiconductor - Diodes Division 5KP85HE3/54
- Part No.:
- 5KP85HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP85HE3/54.pdf
- Description:
- TVS DIODE 85VWM 151VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:5,109
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Product details
Overview
5KP85HE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection on DC power rails and signal lines. It features 5000 W peak pulse power (10/1000 µs), 85 V stand-off voltage (VWM), 137 V maximum clamping voltage (VC) at 36.5 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 5KP85HE3/54 datasheet, 5KP85HE3/54 pinout, 5KP85HE3/54 application, or 5KP85HE3/54 equivalent, this part is selected for robust overvoltage protection in switching power supply outputs, motor drive circuits, and automotive ECUs where fast response (<1 ns), low incremental surge resistance, and repeatable clamping performance under repetitive transients are critical.
Technical Context
The 5KP85HE3/54 operates as a silicon avalanche diode with glass-passivated P600 junction, optimized for unidirectional clamping of positive-going transients relative to ground. Its breakdown voltage (VBR) is 94.4–104 V at 5 mA test current, and it maintains stable clamping up to 175 °C junction temperature.
It delivers 5000 W peak pulse power per JEDEC-standard 10/1000 µs waveform at 0.01 % duty cycle, with 8.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C. The device exhibits 0.110 %/°C temperature coefficient of VBR, ensuring predictable voltage drift across operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 85 V - Maximum continuous reverse operating voltage before leakage exceeds 2 µA; defines safe DC rail margin. |
| VBR (min/max) | 94.4 V / 104 V at 5 mA - Ensures reliable avalanche initiation within tight tolerance band for consistent clamping onset. |
| VC @ IPPM | 137 V at 36.5 A - Clamped voltage during 5000 W transient; determines protected circuit's maximum stress level. |
| PPPM | 5000 W - Peak pulse power handling capability with 10/1000 µs waveform; supports high-energy lightning/surge immunity. |
| TJ max | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress-test requirements including HTGB, HTRB, and TCT. |
| Package | P600 - Axial-lead, molded epoxy case rated UL 94 V-0; supports manual or wave soldering (275 °C, 10 s max). |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode band marking; leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102; meets JESD 201 Class 2 whisker test (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line (e.g., +12 V rail); conducts only during overvoltage events exceeding VBR. |
| Cathode | Current exit terminal; marked by color band | Connected to ground reference; establishes unidirectional clamping path from line-to-ground. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12–48 V systems. |
| 137 V clamping voltage at 36.5 A | Limits downstream IC stress to safe levels during 5000 W transients-critical for MOSFET gate drivers and MCU power inputs. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain and body control modules without additional qualification effort. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., inductive switch-off), improving protection margin. |
| UL 94 V-0 molding compound | Ensures flame-retardant enclosure integrity during sustained overloads or fault conditions. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ground to clamp transients above 85 V. Use Value: Withstands 5000 W pulses while limiting clamped voltage to 137 V-preserving CAN transceivers and microcontrollers rated ≤160 V. |
Use Scenario: Safeguarding IGBT gate driver supplies and DC link capacitors in variable-frequency drives. IC Role / Device Role / Timing Role: Line-to-ground clamping element absorbing energy from inductive kickback during IGBT turn-off. Use Value: Fast <1 ns response and low dynamic impedance ensure clamping occurs before downstream components experience destructive overvoltage. |
| Switching Power Supply Output | Telecom DC Feeder Protection |
Use Scenario: Replacing crowbar circuits on 48 V telecom rectifier outputs to prevent fuse blow during surges. IC Role / Device Role / Timing Role: Standby-mode protector that conducts only during overvoltage, enabling system reset after event. Use Value: 8.0 W steady-state dissipation allows thermal recovery between transients; eliminates need for sacrificial fusing. |
Use Scenario: Protecting PoE-powered devices (e.g., IP cameras) connected to outdoor copper lines susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level surge suppression on DC input side before DC-DC conversion stage. Use Value: 5000 W rating meets GR-1089-CORE Level 3 surge requirements; RoHS-compliant HE3 suffix ensures compliance in global deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85AHE3/52 | Lower peak power (600 W), SMC package, same VWM (85 V), higher VC (139 V at 4.3 A) | Suitable for space-constrained PCBs but not for high-energy industrial surges requiring 5000 W handling. | Select when board area is limited and surge energy is ≤600 W (e.g., secondary-side protection). |
| 1.5KE85CA | Bidirectional variant, same VWM/VC, lower PPPM (1500 W), DO-201 package | Applicable where AC-coupled or bidirectional transients exist (e.g., data lines), but insufficient for automotive load dump. | Choose only for low-energy bidirectional protection; not a drop-in replacement for 5KP85HE3/54's unidirectional 5000 W capability. |
Compared with SMBJ85AHE3/52 and 1.5KE85CA, the 5KP85HE3/54 provides 3.3× and 3.3× higher peak pulse power respectively, making it uniquely suited for primary-side automotive and industrial power rail protection where energy absorption-not just voltage clamping-is the dominant design requirement.
Availability
5KP85HE3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial motor drive development, and telecom power system integration requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for 5KP85HE3/54 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in switching power supplies and automotive power distribution systems-prioritizing clamping stability, thermal robustness, and AEC-Q101 compliance.
FAQ
What is the clamping voltage of the 5KP85HE3/54 under maximum surge conditions?
The 5KP85HE3/54 has a maximum clamping voltage (VC) of 137 V at its rated peak pulse current of 36.5 A (10/1000 µs waveform). This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during a full 5000 W transient event. The 5KP85HE3/54 maintains this clamping performance across its qualified temperature range.
Is the 5KP85HE3/54 suitable for automotive applications?
Yes-the 5KP85HE3/54 carries AEC-Q101 qualification, confirming compliance with stress tests including high-temperature reverse bias, high-temperature operating life, and temperature cycling. Its 175 °C maximum junction temperature and P600 package's robust thermal performance make it appropriate for under-hood and powertrain applications. The 5KP85HE3/54 is explicitly referenced in Vishay's automotive-grade TVS documentation.
What does the "HE3" suffix indicate in 5KP85HE3/54?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes the automotive-grade version from the commercial "E3" variant (e.g., 5KP85A-E3/54), which lacks AEC-Q101 validation. Both share identical electrical specs, but only the 5KP85HE3/54 is approved for automotive use per Vishay's ordering matrix.
How does the 5KP85HE3/54 differ from the 5KP85A-E3/54?
The 5KP85HE3/54 and 5KP85A-E3/54 share identical electrical parameters (VWM, VBR, VC, PPPM) and P600 packaging, but differ in qualification: the "HE3" suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker testing, while "E3" indicates commercial-grade RoHS compliance only. The 5KP85HE3/54 is intended for automotive and mission-critical industrial use.
Can the 5KP85HE3/54 be used in bidirectional protection circuits?
No-the 5KP85HE3/54 is unidirectional only, with polarity indicated by a cathode band. It clamps positive transients relative to ground and conducts no significant current under reverse bias beyond leakage. For bidirectional protection (e.g., AC lines or differential signals), a dedicated bidirectional TVS such as 5KP85CA must be used instead of the 5KP85HE3/54.
5KP85HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85V
- Voltage - Breakdown (Min):
- 94.4V
- Voltage - Clamping (Max) @ Ipp:
- 151V
- Current - Peak Pulse (10/1000µs):
- 33.1A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP85HE3/54 FAQ
1.How can I place an order for 5KP85HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP85HE3/54 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 5KP85HE3/54 reliable?
The price and inventory of 5KP85HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP85HE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP85HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP85HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP85HE3/54?
5KP85HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP85HE3/54 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 5KP85HE3/54?
For technical support, including 5KP85HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP85HE3/54 requirements.
6.How does Aetrix verify that 5KP85HE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP85HE3/54 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 5KP85HE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP85HE3/54?
All 5KP85HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP85HE3/54, 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 5KP85HE3/54 part is unused and in its original packaging.
Return procedure for 5KP85HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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