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Vishay General Semiconductor - Diodes Division 5KP188HE3/54
- Part No.:
- 5KP188HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP188HE3/54.pdf
- Description:
- TVS DIODE 188VWM 344VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:3,640
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Product details
Overview
5KP188HE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, rated for 5000 W peak pulse power (10/1000 μs), 188 V stand-off voltage (VWM), and 328 V clamping voltage (VC) at 15.2 A peak pulse current. It provides robust overvoltage protection for automotive power rails and industrial DC supplies.
For engineers reviewing the 5KP188HE3/54 datasheet, 5KP188HE3/54 pinout, 5KP188HE3/54 application, or 5KP188HE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 175 °C max junction temperature, low incremental surge resistance, and uni-directional polarity with cathode band marking - critical for crowbar-replacement designs in switching power supply outputs.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by transient overvoltage events. Its glass-passivated P600 chip junction delivers fast response time (<1 ns) and excellent clamping ratio (VC/VBR ≈ 1.42), with breakdown voltage (VBR) specified at 209–231 V (min/max) under 5 mA test current.
Designed for non-repetitive surge suppression, it sustains 5000 W peak pulse power per JEDEC-standard 10/1000 μs waveform at 0.01% duty cycle, and handles 600 A peak forward surge current (8.3 ms half-sine). Thermal derating follows a defined curve up to 175 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 209 V / 231 V at 5 mA - Ensures reliable triggering above system nominal voltage with margin |
| VC @ IPPM | 328 V at 15.2 A - Clamped voltage during 10/1000 μs surge; defines protected circuit's maximum stress level |
| PPPM | 5000 W - Peak pulse power handling capability under standardized surge waveform |
| IFSM | 600 A - Surge current rating for 8.3 ms half-sine wave; supports fuse/breaker coordination |
| TJ max. | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
| Polarity | Uni-directional - Cathode-band marked; blocks reverse voltage until breakdown, conducts forward surges |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; RoHS-compliant, AEC-Q101 qualified, UL 94 V-0 rated. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry during surge | Connected to protected line's lower-potential side (e.g., ground or return path) |
| Cathode | Reverse-biased terminal during normal operation | Marked with color band; connected to protected line's higher-potential side (e.g., +12 V rail) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including temperature cycling, humidity, and mechanical shock |
| 5000 W peak pulse power | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) without parallel stacking |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping precision |
| 175 °C junction rating | Supports mounting on high-temperature PCB areas near power converters without thermal derating penalties |
| Matte tin plating & J-STD-002 compliance | Ensures reliable solderability and intermetallic formation control in automated assembly |
Applications
| Automotive Load Dump Protection | Industrial DC Power Rail Clamp |
|---|---|
Use Scenario: Suppresses ISO 7637-2 Pulse 5a (load dump) transients on 12 V/24 V vehicle battery lines. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed between battery rail and ground, triggered within nanoseconds of overvoltage onset. Use Value: Limits rail voltage to ≤328 V, preventing damage to downstream DC-DC converters and microcontrollers rated for 36 V input. | Use Scenario: Protects output stage of 24 V industrial switching power supply from inductive kickback during relay switching. IC Role / Device Role / Timing Role: Standby shunt protector that remains non-conductive until transient exceeds 188 V, then clamps within <1 ns. Use Value: Replaces bulkier crowbar circuits while maintaining fuse coordination via 600 A IFSM rating. |
| Telecom Power Interface | Motor Drive DC Bus Clamp |
Use Scenario: Shields 48 V telecom rectifier output from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Uni-directional transient suppressor mounted at power entry point, referenced to system ground. Use Value: Withstands 5000 W pulses without degradation, meeting ITU-T K.20/21 immunity requirements for central office equipment. | Use Scenario: Clamps regenerative energy spikes on 400 V DC bus during rapid motor deceleration in servo drives. IC Role / Device Role / Timing Role: High-energy TVS connected across bus terminals to absorb stored inductive energy. Use Value: 328 V clamping voltage ensures IGBT gate drivers remain below absolute maximum ratings during bus overvoltage events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ188AHE3/52 | Lower peak power (600 W), same VWM (188 V), DO-214AA package | Not suitable for load dump; limited to lower-energy transients like ESD or EFT | Select when space-constrained layouts require SMC footprint and surge energy is ≤600 W |
| 1.5KE188A | Same VWM (188 V) and PPPM (5000 W), but TO-204AE (DO-4) package, non-AEC-Q101 | Lacks automotive qualification; not recommended for production vehicles | Choose for cost-sensitive industrial prototypes where AEC-Q101 is not mandated |
Compared with SMBJ188AHE3/52 and 1.5KE188A, the 5KP188HE3/54 uniquely combines AEC-Q101 qualification, P600 thermal mass for sustained surge dissipation, and 5000 W capability in a surface-mount-compatible through-hole package - making it the only option validated for automotive load dump in production ECUs.
Availability
5KP188HE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply with full traceability and lifecycle management.
Supply support for 5KP188HE3/54 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, MOSFETs, and protection devices with emphasis on reliability and automotive-grade validation.
The 5KP series was engineered specifically for high-energy transient suppression in switching power supply outputs and automotive load dump scenarios, prioritizing clamping accuracy, thermal robustness, and AEC-Q101 compliance.
FAQ
What is the clamping voltage of the 5KP188HE3/54 under standard test conditions?
The 5KP188HE3/54 has a maximum clamping voltage (VC) of 328 V at 15.2 A peak pulse current (IPPM) using the 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuits during surge events. The 5KP188HE3/54 maintains this clamping performance across its specified operating temperature range.
Is the 5KP188HE3/54 suitable for automotive applications?
Yes, the 5KP188HE3/54 is AEC-Q101 qualified and explicitly designed for automotive use, including under-hood environments. Its 175 °C maximum junction temperature, robust P600 package, and ability to withstand ISO 7637-2 Pulse 5a load dump transients make it appropriate for engine control units, body control modules, and infotainment power supplies. The HE3 suffix confirms AEC-Q101 compliance.
How does the 5KP188HE3/54 differ from the 5KP188A-E3/54 variant?
The 5KP188HE3/54 is AEC-Q101 qualified (HE3 suffix), whereas the 5KP188A-E3/54 is commercial-grade (E3 suffix only). Both share identical electrical specifications (VWM, VBR, VC, PPPM), but the HE3 version undergoes additional stress testing per AEC-Q101, including temperature cycling, humidity, and mechanical shock - required for automotive production. The 5KP188HE3/54 is the correct choice for automotive OEM designs.
What is the polarity configuration of the 5KP188HE3/54?
The 5KP188HE3/54 is a unidirectional TVS diode, meaning it functions as a reverse-biased Zener-like clamp during overvoltage events and conducts forward current during positive surges. The cathode is marked by a color band on the P600 package body. This configuration is essential for protecting DC power rails where polarity is fixed and reverse conduction must be blocked during normal operation.
Can the 5KP188HE3/54 replace a crowbar circuit in power supply design?
Yes, the 5KP188HE3/54 is explicitly positioned in Vishay's documentation as a crowbar circuit replacement for switching power supply outputs. Its 5000 W peak pulse power and 600 A IFSM rating allow it to absorb high-energy transients while permitting upstream fuses or breakers to clear - enabling system reset without component replacement. Unlike crowbar SCRs, the 5KP188HE3/54 requires no gate drive or latching logic.
5KP188HE3/54 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):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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
5KP188HE3/54 FAQ
1.How can I place an order for 5KP188HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP188HE3/54 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 5KP188HE3/54 reliable?
The price and inventory of 5KP188HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP188HE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP188HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP188HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP188HE3/54?
5KP188HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP188HE3/54 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 5KP188HE3/54?
For technical support, including 5KP188HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP188HE3/54 requirements.
6.How does Aetrix verify that 5KP188HE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP188HE3/54 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 5KP188HE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP188HE3/54?
All 5KP188HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP188HE3/54, 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 5KP188HE3/54 part is unused and in its original packaging.
Return procedure for 5KP188HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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