My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 5KP188AHE3_A/C
- Part No.:
- 5KP188AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP188AHE3_A/C.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:9,994
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
5KP188AHE3_A/C from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection 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), 328 V clamping voltage at 15.2 A, and AEC-Q101 qualification - used to protect automotive power supplies and industrial DC bus lines against lightning and inductive switching transients.
For engineers reviewing the 5KP188AHE3_A/C datasheet, 5KP188AHE3_A/C pinout, 5KP188AHE3_A/C application, or 5KP188AHE3_A/C equivalent, key selection criteria include clamping voltage margin relative to system rail, peak pulse current capability under 10/1000 μs waveform, thermal derating above 25 °C, unidirectional polarity requirement, and AEC-Q101 compliance for automotive-grade deployment.
Technical Context
This TVS diode employs a glass-passivated P600 chip junction optimized for fast response (<1 ns) and low incremental surge resistance, enabling precise clamping during high-dI/dt events like relay coil de-energization or motor commutation. Its unidirectional structure provides forward conduction path only during overvoltage, with 3.5 V forward voltage at 100 A.
The device operates across –55 °C to +175 °C junction temperature range and is rated for 500 A non-repetitive forward surge current (8.3 ms half-sine). Power dissipation is 8.0 W on infinite heatsink at TL = 75 °C, with derating per Figure 5 - critical for sustained surge duty cycles in industrial power converters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR (min/max) | 209 V / 231 V at 5 mA - guaranteed breakdown threshold; ensures predictable turn-on during transients. |
| VC @ IPPM | 328 V at 15.2 A (10/1000 μs) - clamped voltage seen by protected circuit; determines downstream component stress. |
| PPPM | 5000 W - peak pulse power handling capacity; supports IEC 61000-4-5 Level 4 surge immunity. |
| TJ max. | +175 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| Polarity | Unidirectional - provides forward conduction path; requires correct cathode orientation in series with load. |
| AEC-Q101 | Qualified - validated for automotive reliability including HTOL, TC, UHAST, and ESD per AEC standard. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; 0.360" × 0.340" body (9.1 mm × 8.6 mm); lead length 0.375" (9.5 mm); RoHS compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of protected line; conducts during reverse overvoltage event. |
| Cathode | Reverse-biased terminal (marked by color band) | Connected to higher-potential rail; defines clamping reference and polarity orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-event suppression of 4 kV/2 Ω IEC 61000-4-5 surges without failure. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream MOSFETs or controllers during clamping. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics with extended lifetime requirements. |
| 175 °C max junction temperature | Supports placement near heat-generating components (e.g., DC-DC converters) without thermal derating loss. |
| 0.01 % duty cycle rating | Allows repetitive surge handling in industrial motor drives with defined off-time between events. |
Applications
| Automotive Power Supply Protection | Industrial DC Bus Clamping |
|---|---|
|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump transients up to 35 V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rail to clamp overvoltage before it reaches LDOs or microcontrollers. Use Value: Withstands 5000 W pulses while limiting clamped voltage to 328 V - preserving system uptime and eliminating crowbar circuitry. |
Use Scenario: Safeguarding 400 V DC bus in solar inverters during grid fault-induced voltage spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from IGBT switching transients and lightning-induced surges. Use Value: 15.2 A peak pulse current rating ensures reliable clamping without thermal runaway under repeated 10/1000 μs surges. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control |
|
Use Scenario: Shielding PoE-powered Ethernet ports from induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Primary-level TVS on DC input side of PD controller, upstream of isolation and regulation stages. Use Value: Fast response time and 328 V clamping prevent latch-up in IEEE 802.3af/at-compliant PHY ICs during field surges. |
Use Scenario: Suppressing back-EMF from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive kickback during PWM commutation. Use Value: 500 A IFSM rating tolerates repeated 8.3 ms half-sine surges from motor startup/stall 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 (188 V), VC = 308 V @ 1.9 A | Targeted for board-level signal line protection, not high-power bus clamping | Select when space-constrained and surge energy ≤ 600 W; not suitable for 5KP-level IEC 61000-4-5 testing. |
| 1.5KE188A | Same VWM (188 V), lower PPPM (1500 W), DO-201 package, VC = 308 V @ 4.8 A, no AEC-Q101 | General-purpose industrial use; lacks automotive qualification and thermal robustness | Choose for cost-sensitive non-automotive designs where 1500 W pulse handling suffices and AEC-Q101 is not required. |
Compared with SMBJ188A and 1.5KE188A, the 5KP188AHE3_A/C delivers 3.3× and 3.3× higher peak pulse power respectively, maintains AEC-Q101 compliance, and sustains clamping performance under higher thermal loads - making it the sole choice for automotive 24 V systems and industrial 400 V DC bus protection.
Availability
5KP188AHE3_A/C is available at Aetrix Electronics and suitable for automotive power supply protection, industrial DC bus clamping, telecom line interface protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for 5KP188AHE3_A/C 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 automotive-grade validation.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems - delivering robust clamping performance where crowbar circuits were previously required.
FAQ
What is the clamping voltage of the 5KP188AHE3_A/C and how is it measured?
The 5KP188AHE3_A/C has a maximum clamping voltage (VC) of 328 V, measured at 15.2 A peak pulse current using a 10/1000 μs waveform per JEDEC standards. This value represents the upper limit of voltage imposed on the protected circuit during a surge event and is confirmed in the Electrical Characteristics table on page 2 of Vishay document 88308. The 5KP188AHE3_A/C achieves this clamping performance while maintaining low incremental surge resistance.
Is the 5KP188AHE3_A/C suitable for automotive applications?
Yes, the 5KP188AHE3_A/C is AEC-Q101 qualified, as explicitly stated in the Mechanical Data section and footnote (1) on page 3 of the Vishay datasheet. Its construction - including glass-passivated junction, P600 package, and 175 °C max junction temperature - meets automotive environmental and reliability requirements. The 5KP188AHE3_A/C is routinely deployed in 24 V battery-line protection for ECUs and ADAS modules.
What does the "HE3_A/C" suffix mean in 5KP188AHE3_A/C?
The "HE3" suffix denotes RoHS-compliant, AEC-Q101-qualified construction with JESD 201 class 2 whisker resistance; "_A/C" indicates revision A in the HE3 variant and packaging in 13" paper tape and reel (package code C, base quantity 800). This ordering code appears in the Ordering Information table on page 3 of Vishay document 88308, confirming the 5KP188AHE3_A/C is a production-ready, automotive-grade variant.
How does the 5KP188AHE3_A/C compare to bidirectional TVS diodes?
The 5KP188AHE3_A/C is unidirectional only, meaning it conducts in forward bias and clamps only reverse overvoltages - unlike bidirectional types that protect both polarities. Its forward voltage is 3.5 V at 100 A, so it must be oriented with cathode toward the higher-potential rail. This makes the 5KP188AHE3_A/C ideal for DC power line protection where polarity is fixed, offering tighter clamping than equivalent bidirectional parts.
What thermal considerations apply to the 5KP188AHE3_A/C during surge events?
The 5KP188AHE3_A/C has a maximum junction temperature of +175 °C and dissipates 8.0 W on an infinite heatsink at TL = 75 °C. Derating follows Figure 5: power handling drops linearly above 25 °C ambient. For repeated surges, PCB copper area and thermal vias must be sized per Vishay's P600 thermal guidelines - critical because the 5KP188AHE3_A/C absorbs full surge energy as heat during clamping.
5KP188AHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP188AHE3_A/C FAQ
1.How can I place an order for 5KP188AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP188AHE3_A/C 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 5KP188AHE3_A/C reliable?
The price and inventory of 5KP188AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP188AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 5KP188AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP188AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP188AHE3_A/C?
5KP188AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP188AHE3_A/C 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 5KP188AHE3_A/C?
For technical support, including 5KP188AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP188AHE3_A/C requirements.
6.How does Aetrix verify that 5KP188AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 5KP188AHE3_A/C 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 5KP188AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 5KP188AHE3_A/C?
All 5KP188AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 5KP188AHE3_A/C, 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 5KP188AHE3_A/C part is unused and in its original packaging.
Return procedure for 5KP188AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP188AHE3_A/C Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
