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Vishay General Semiconductor - Diodes Division 5KP188A-E3/54
- Part No.:
- 5KP188A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP188A-E3/54.pdf
- Description:
- TVS DIODE 188VWM 328VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:2,101
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Product details
Overview
5KP188A-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 protection and industrial sensor interface circuits.
For engineers reviewing the 5KP188A-E3/54 datasheet, 5KP188A-E3/54 pinout, 5KP188A-E3/54 application, or 5KP188A-E3/54 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, P600 package thermal performance, clamping voltage margin vs. protected IC VDS(max), and 175 °C junction temperature rating for under-hood automotive use.
Technical Context
The 5KP188A-E3/54 operates as a silicon avalanche diode with glass-passivated P600 chip junction, optimized for non-repetitive 10/1000 μs surge waveforms at 0.01 % duty cycle. Its low incremental surge resistance and fast response time enable effective clamping before downstream MOSFETs or controllers fail.
It is rated for 500 A peak forward surge current (8.3 ms half-sine), 3.5 V forward voltage at 100 A, and derates linearly above 25 °C ambient per Fig. 2 - requiring heatsinking or PCB copper area when deployed in high-duty-cycle switching power supply outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - maximum continuous reverse operating voltage before leakage exceeds 2 μA; sets upper limit for DC rail protection without false triggering. |
| VBR (min/max) | 209 V / 231 V at 5 mA - ensures reliable avalanche conduction onset within defined tolerance; critical for predictable clamping threshold. |
| VC @ IPPM | ≤328 V at 15.2 A - clamped voltage during full-rated surge; must remain below protected device's absolute maximum rating. |
| PPPM | 5000 W (10/1000 μs) - defines single-event energy handling capacity; supports IEC 61000-4-5 Level 4 surge immunity. |
| TJ max. | +175 °C - enables operation in under-hood automotive environments and high-temperature industrial enclosures. |
| Polarity | Unidirectional - cathode marked by band; suitable for DC-biased rails only; not for AC line or bidirectional data lines. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; meets UL 94 V-0; RoHS compliant (E3 suffix); 2.776 g unit weight; 13″ paper tape and reel (800 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction or surge clamp | Connected to lower-potential side of protected circuit (e.g., ground or return path); determines directionality of protection. |
| Cathode | Current exit during reverse-biased clamping | Marked by color band; connected to higher-potential rail (e.g., +12 V, +24 V); conducts avalanche current to shunt surge energy. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; supports PPAP documentation for Tier-1 programs. |
| 5000 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV/2 Ω without degradation; eliminates need for crowbar circuits. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on protected ICs; improves system-level robustness vs. competing TVS with higher VC. |
| P600 thermal design | Enables 8.0 W power dissipation on infinite heatsink at TL = 75 °C; supports >10 s surge hold time with adequate PCB copper pour. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 24 V CAN power input against load dump transients (ISO 7637-2 Pulse 5a) in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery feed and DC-DC converter input. Use Value: Clamps to ≤328 V within nanoseconds, preventing damage to upstream fuse box electronics and enabling system reset after event. |
Use Scenario: Safeguarding analog output lines (4–20 mA) of pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Reverse-biased surge shunt on signal line referenced to local ground. Use Value: Limits induced lightning-induced transients (<100 ns rise) to <330 V, preserving 16-bit ADC accuracy and isolator integrity. |
| Switching Power Supply Output | Telecom DC Feeder Protection |
Use Scenario: Secondary-side overvoltage suppression on 48 V telecom rectifier outputs exposed to grid switching surges. IC Role / Device Role / Timing Role: Standoff-clamp TVS parallel to output capacitor bank. Use Value: Absorbs 5000 W surge without thermal runaway, allowing breaker trip while maintaining downstream PoE switch uptime. |
Use Scenario: DC feeder line protection in outdoor base station cabinets subjected to indirect lightning coupling. IC Role / Device Role / Timing Role: Primary-stage unidirectional clamping element on -48 V distribution bus. Use Value: Withstands repetitive 10/1000 μs surges up to 0.01 % duty cycle; maintains MTBF > 100,000 hrs in harsh environmental conditions. |
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 | Limited to low-energy surges (IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 or IEC 61000-4-5 | Select when space-constrained and surge threat level is ≤1 kV; avoid for automotive load dump or industrial AC line coupling. |
| 1.5KE188A | Same VWM/VBR/VC specs, but 1.5 kW PPPM and DO-201 package; no AEC-Q101 qualification | Not validated for automotive temperature cycling or humidity testing; lower thermal mass limits sustained surge duty | Acceptable for commercial-grade power supplies where AEC-Q101 is not mandated and surge repetition is infrequent. |
Compared with SMBJ188A and 1.5KE188A, the 5KP188A-E3/54 delivers 3.3× higher peak pulse power in a thermally robust P600 package with automotive-grade qualification - making it the sole choice for ISO 7637-2-compliant 24 V systems and high-reliability industrial power rails.
Availability
5KP188A-E3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC feeder surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 5KP188A-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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering robust clamping performance where legacy 1.5KE or SMBJ families fall short in energy handling and thermal endurance.
FAQ
What is the clamping voltage of the 5KP188A-E3/54 under full-rated surge current?
The 5KP188A-E3/54 clamps to a maximum of 328 V when subjected to its rated 15.2 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that protected downstream components - such as 300 V-rated MOSFETs or 350 V capacitors - remain within safe operating limits during surge events. The 5KP188A-E3/54 achieves this with low incremental resistance, ensuring consistent clamping across production lots.
Is the 5KP188A-E3/54 qualified for automotive applications?
Yes, the 5KP188A-E3/54 is AEC-Q101 qualified, having passed rigorous stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD). Its P600 package and 175 °C maximum junction temperature make it suitable for under-hood engine control units and body electronics. The 5KP188A-E3/54 is explicitly listed in Vishay's AEC-Q101 qualified product matrix with revision code "HE3" variants - confirming its compliance for automotive production use.
How does the 5KP188A-E3/54 differ from the 1.5KE188A in practical design?
The 5KP188A-E3/54 offers 5000 W peak pulse power versus 1.5KE188A's 1500 W - a 3.3× increase enabling protection against ISO 7637-2 load dump pulses. It uses a larger P600 package with superior thermal dissipation (8.0 W vs. ~3.0 W) and is AEC-Q101 qualified, whereas 1.5KE188A is commercial-grade only. In layout, the 5KP188A-E3/54 requires more PCB area but delivers higher reliability in automotive and industrial settings where the 1.5KE188A would fail catastrophically.
What is the meaning of the "E3/54" suffix in 5KP188A-E3/54?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction meeting JESD 201 Class 1A whisker resistance, while "/54" denotes the preferred packaging code: 13-inch diameter paper tape and reel containing 800 units. This ordering format aligns with Vishay's standard logistics configuration for automated SMT placement. The 5KP188A-E3/54 is distinct from AEC-Q101-qualified variants like 5KP188AHE3_A, which carry additional qualification markings and test reporting.
Can the 5KP188A-E3/54 be used in bidirectional signal line protection?
No, the 5KP188A-E3/54 is unidirectional only, with cathode marked by a color band and specified for DC-biased applications. It conducts avalanche current only when reverse-biased beyond VBR - making it unsuitable for AC-coupled or bidirectional data lines (e.g., RS-485, USB, or Ethernet). For such applications, a bidirectional TVS like SMAJ188A or dedicated dual-rail arrays must be selected. Using the 5KP188A-E3/54 on AC signals risks forward conduction and failure.
5KP188A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 188V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 15.2A
- 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
5KP188A-E3/54 FAQ
1.How can I place an order for 5KP188A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP188A-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 5KP188A-E3/54 reliable?
The price and inventory of 5KP188A-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 5KP188A-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP188A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP188A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP188A-E3/54?
5KP188A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP188A-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 5KP188A-E3/54?
For technical support, including 5KP188A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP188A-E3/54 requirements.
6.How does Aetrix verify that 5KP188A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP188A-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 5KP188A-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP188A-E3/54?
All 5KP188A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP188A-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 5KP188A-E3/54 part is unused and in its original packaging.
Return procedure for 5KP188A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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