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Vishay General Semiconductor - Diodes Division 5KP188-E3/54
- Part No.:
- 5KP188-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP188-E3/54.pdf
- Description:
- TVS DIODE 188VWM 344VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:4,239
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Product details
Overview
5KP188-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge clamping on power rails and signal lines. It features 188 V stand-off voltage (VWM), 209–231 V breakdown voltage (VBR), 5000 W peak pulse power (10/1000 μs), 15.2 A peak pulse current (IPPM), and clamps to ≤328 V at rated surge - used in automotive power supply overvoltage protection and industrial DC bus surge suppression.
For engineers reviewing the 5KP188-E3/54 datasheet, 5KP188-E3/54 pinout, 5KP188-E3/54 application, or 5KP188-E3/54 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, low incremental surge resistance, and compatibility with 13" tape-and-reel delivery for automated assembly.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by transient overvoltages exceeding its reverse stand-off voltage (VWM = 188 V). Its glass-passivated P600 junction enables fast response (<1 ns) and stable clamping under repetitive 10/1000 μs surges at 0.01% duty cycle.
The device sustains 5000 W peak pulse power while limiting clamped voltage to 328 V at 15.2 A, with 0.112 %/°C temperature coefficient of VBR and 2.0 μA max reverse leakage at VWM - optimized for crowbar-replacement applications in switching power supplies and DC link protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 188 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown Voltage) | 209–231 V at 5 mA - guaranteed conduction onset range for reliable overvoltage detection |
| VC (Clamping Voltage) | ≤328 V at IPPM = 15.2 A - limits downstream component stress during 10/1000 μs transients |
| PPPM (Peak Pulse Power) | 5000 W - energy-handling capacity for high-energy surges per JEDEC standard waveform |
| TJ max | 175 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| Polarity | Unidirectional - cathode-banded configuration for DC rail protection only (no AC or bidirectional use) |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; RoHS-compliant (E3 suffix); UL 94 V-0 rated; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Current exit terminal during reverse clamping | Connected to protected line (e.g., +12 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables robust protection against lightning-induced surges and inductive switch-off spikes in 24 V/48 V systems |
| AEC-Q101 qualification | Validates suitability for automotive power modules, engine control units, and ADAS power domains |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision |
| 175 °C maximum junction temperature | Supports placement near heat-generating components without derating in compact enclosures |
| P600 package with JESD 22-B106 solderability | Ensures reliable reflow and wave soldering at 275 °C for 10 s in high-volume manufacturing |
Applications
| Automotive Power Supply Protection | Industrial DC Bus Surge Suppression |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump transients up to ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional voltage clamp placed between battery rail and regulator input. Use Value: Clamps to ≤328 V within nanoseconds, preventing damage to downstream LDOs and microcontrollers. |
Use Scenario: Safeguarding motor drive DC link capacitors against IGBT switching transients. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing regenerative energy spikes during rapid deceleration. Use Value: Withstands 5000 W pulses without degradation, eliminating need for crowbar SCR circuits. |
| Telecom Rectifier Output Protection | Renewable Energy Charge Controller Input |
Use Scenario: Shielding PoE midspan power converters from induced surges on long Ethernet runs. IC Role / Device Role / Timing Role: Standoff-rated TVS on +48 V output, coordinated with upstream fusing. Use Value: 188 V VWM matches telecom nominal rail; 328 V VC ensures safe margin below MOSFET drain ratings. |
Use Scenario: Protecting solar charge controller inputs from lightning-induced surges on PV string wiring. IC Role / Device Role / Timing Role: Primary overvoltage clamp on MPPT input stage before buck converter. Use Value: AEC-Q101 qualification supports outdoor deployment; 175 °C TJ rating accommodates rooftop ambient extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ188A | Lower PPPM (600 W), smaller SMB package, same VWM/VBR range | Suitable for low-energy signal-line protection; insufficient for load dump or DC bus | Select when space-constrained and surge energy <500 W; not drop-in for 5KP188-E3/54's power class |
| 1.5KE188A | Same VWM/VBR, but 1500 W PPPM and DO-201 package; no AEC-Q101 qualification | Limited to commercial/industrial use; lacks automotive reliability validation | Acceptable for non-automotive 24 V systems where AEC-Q101 is not mandated |
Compared with SMBJ188A and 1.5KE188A, the 5KP188-E3/54 delivers 3.3× higher surge power handling and automotive-grade qualification - critical for protecting high-voltage DC rails where failure risk directly impacts system safety and warranty liability.
Availability
5KP188-E3/54 is available at Aetrix Electronics and suitable for automotive power module design, industrial motor drive development, and renewable energy system integration requiring stable component supply across multi-year production cycles.
Supply support for 5KP188-E3/54 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The 5KP series was engineered specifically for high-power transient suppression in switching power supplies and automotive electrical systems - delivering robust clamping with AEC-Q101 validation and P600 thermal robustness.
FAQ
What is the clamping voltage of the 5KP188-E3/54 under rated surge conditions?
The 5KP188-E3/54 clamps to a maximum of 328 V when subjected to its rated 15.2 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 5KP188-E3/54 suitable for automotive applications?
Yes, the 5KP188-E3/54 is AEC-Q101 qualified, confirming compliance with automotive reliability standards including temperature cycling, high-temperature reverse bias, and electrostatic discharge testing. Its 175 °C maximum junction temperature and P600 package thermal performance make it appropriate for under-hood and powertrain-related applications where sustained high ambient temperatures occur.
What does the "E3/54" suffix indicate in 5KP188-E3/54?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "/54" specifies the preferred packaging code - 13-inch diameter paper tape and reel containing 800 units. This format supports automated SMT placement and ensures consistent moisture sensitivity level (MSL) handling per J-STD-020.
How does the 5KP188-E3/54 differ from bidirectional TVS diodes?
The 5KP188-E3/54 is unidirectional only, with cathode marked by a color band and intended for DC rail protection. Unlike bidirectional variants, it conducts in forward bias like a rectifier and clamps only in reverse - making it unsuitable for AC line protection or differential signal lines. Its VBR and VC values apply exclusively to reverse operation.
Can the 5KP188-E3/54 replace a crowbar circuit in power supplies?
Yes, per Vishay application notes, the 5KP188-E3/54 is explicitly designed to replace crowbar SCR circuits in switching power supplies. It absorbs high-energy transients while allowing time for upstream fuses or breakers to open - enabling system reset without component replacement, unlike destructive crowbar implementations that require post-event service.
5KP188-E3/54 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP188-E3/54 FAQ
1.How can I place an order for 5KP188-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP188-E3/54 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 5KP188-E3/54 reliable?
The price and inventory of 5KP188-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP188-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP188-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP188-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP188-E3/54?
5KP188-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP188-E3/54 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 5KP188-E3/54?
For technical support, including 5KP188-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP188-E3/54 requirements.
6.How does Aetrix verify that 5KP188-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP188-E3/54 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 5KP188-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP188-E3/54?
All 5KP188-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP188-E3/54, 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 5KP188-E3/54 part is unused and in its original packaging.
Return procedure for 5KP188-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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