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Vishay General Semiconductor - Diodes Division 5KP64A-E3/51
- Part No.:
- 5KP64A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP64A-E3/51.pdf
- Description:
- TVS DIODE 64VWM 103VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:8,721
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Product details
Overview
5KP64A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection of DC power lines and signal paths. It features 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR) at 5.0 mA, 103 V clamping voltage (VC) at 48.5 A peak pulse current (IPPM), and 5000 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used to protect MOSFETs and ICs in automotive power supplies.
For engineers reviewing the 5KP64A-E3/51 datasheet, 5KP64A-E3/51 pinout, 5KP64A-E3/51 application, or 5KP64A-E3/51 equivalent, key selection criteria include clamping voltage margin vs. protected device's absolute maximum rating, unidirectional polarity compatibility with DC rail orientation, P600 thermal dissipation capability under repetitive surge conditions, and RoHS-compliant matte tin plating per J-STD-002.
Technical Context
This TVS diode operates as a voltage-clamped crowbar element during transients - it remains non-conductive below 64 V (VWM), initiates avalanche conduction at 71.1–78.6 V (VBR), and limits downstream voltage to ≤103 V (VC) under 48.5 A (IPPM) 10/1000 μs surge. Its P600 glass-passivated junction enables low incremental surge resistance and sub-nanosecond response time.
Rated for -55 °C to +175 °C junction temperature, it supports automotive-grade reliability with AEC-Q101 qualification and JESD 201 Class 1A whisker resistance. The 8.0 W steady-state power dissipation (PD) on infinite heatsink at TL = 75 °C defines its continuous thermal handling limit outside transient events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64 V - Maximum continuous reverse operating voltage before leakage exceeds 2 μA; sets upper limit for protected circuit's nominal DC rail. |
| VBR (min/max) | 71.1 V / 78.6 V at 5.0 mA - Avalanche onset range; ensures reliable triggering above VWM with 11% tolerance margin. |
| VC @ IPPM | 103 V at 48.5 A (10/1000 μs) - Clamped voltage seen by downstream IC/MOSFET; must be below device's absolute max rating. |
| PPPM | 5000 W - Peak transient energy absorption capacity; determines survivability against ISO 7637-2 Pulse 1/2/5a surges. |
| IFSM | 600 A (8.3 ms half-sine) - Non-repetitive forward surge rating; supports fuse/breaker coordination during overvoltage faults. |
| TJ max. | +175 °C - Maximum junction temperature; enables operation in under-hood automotive environments with minimal derating. |
| Polarity | Unidirectional - Cathode-banded configuration; suitable only for DC rails where reverse voltage is blocked or absent. |
Pinout & Package
5KP64A-E3/51 uses the P600 axial-leaded package: molded epoxy body over glass-passivated junction, UL 94 V-0 rated, with matte tin-plated leads solderable per J-STD-002. Cathode is marked by a color band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | DC input/reference node | Connected to lower-potential side of protected line (e.g., GND or return path); conducts during positive transients when cathode is at higher potential. |
| Cathode (banded end) | Clamping node | Connected to protected circuit's positive rail; sinks surge current to ground via anode during overvoltage, clamping voltage to ≤103 V. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against severe load-dump transients (e.g., ISO 7637-2 Pulse 5a) without parallel staging. |
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications requiring zero defect rates and extended temperature cycling reliability. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes voltage overshoot during clamping - critical for protecting 75 V-rated MOSFETs on 64 V systems. |
| JESD 201 Class 1A whisker resistance | Prevents tin whisker growth under thermal stress, eliminating latent short-circuit risk in long-life automotive modules. |
| UL 94 V-0 molding compound | Ensures flame retardancy in enclosed enclosures, meeting automotive and industrial safety compliance requirements. |
Applications
| Automotive Power Supply Protection | Industrial DC Motor Drive Input |
|---|---|
Use Scenario: Protecting 64 V battery-fed ECUs against load dump transients up to 120 V per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ECU input filter capacitor. Use Value: Clamps transient to ≤103 V within nanoseconds, preventing damage to downstream DC/DC controllers rated for 100 V max. |
Use Scenario: Safeguarding 60–70 V DC bus inputs of motor drives from inductive kickback during IGBT switching. IC Role / Device Role / Timing Role: Crowbar-style surge clamp across DC+ and DC− terminals, triggered by >71 V spikes. Use Value: Absorbs 5000 W surge energy without degradation, enabling fuse coordination instead of costly active crowbar circuits. |
| Telecom Rectifier Output | Renewable Energy Charge Controller |
Use Scenario: Shielding PoE midspan rectifier outputs from lightning-induced surges on outdoor Ethernet cables. IC Role / Device Role / Timing Role: Primary-level TVS on +56 V DC output, upstream of secondary filtering and isolation. Use Value: 103 V clamping ensures compliance with IEEE 802.3bt Type 4 surge immunity while maintaining 10% design margin. |
Use Scenario: Protecting solar charge controller inputs connected to 60 V nominal PV arrays exposed to lightning-induced grid surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on PV+ input, referenced to system ground with low-inductance layout. Use Value: Withstands 600 A 8.3 ms surge (IFSM), allowing coordination with 63 A DC fuses for full-system fault clearance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ64A | Lower PPPM (400 W), SMA package (0.5 W PD), 101 V VC @ 26.5 A | Suitable for low-energy signal-line protection; insufficient for load-dump duty cycles. | Select only for space-constrained PCBs with <1 kV surge exposure and no automotive qualification requirement. |
| ON Semiconductor 1.5KE68A | Same P600 package, 68 V VWM, 75.6–83.6 V VBR, 110 V VC @ 45.5 A, 1500 W PPPM | Lower energy rating; requires parallel devices for 5000 W compliance. | Choose when cost sensitivity outweighs board area constraints and multi-device layout is acceptable. |
Compared with SMAJ64A and 1.5KE68A, the 5KP64A-E3/51 delivers 3.3× higher peak power handling in identical P600 footprint and meets AEC-Q101 - making it the sole drop-in solution for automotive load-dump protection without redesign or derating.
Availability
5KP64A-E3/51 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial DC motor drive input stages, and telecom rectifier outputs requiring stable component supply across extended production lifecycles.
Supply support for 5KP64A-E3/51 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 - prioritizing robust clamping, AEC-Q101 compliance, and thermal resilience in P600 packaging.
FAQ
What is the clamping voltage of the 5KP64A-E3/51 under standard surge conditions?
The 5KP64A-E3/51 has a maximum clamping voltage (VC) of 103 V when subjected to a 10/1000 μs waveform at its rated peak pulse current of 48.5 A. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events. The 103 V clamping ensures compatibility with 100 V-rated power MOSFETs in 64 V systems. Designers must verify that this VC does not exceed the absolute maximum rating of downstream components.
Is the 5KP64A-E3/51 suitable for bidirectional surge protection?
No, the 5KP64A-E3/51 is a unidirectional TVS diode, indicated by its single cathode band and specified parameters (VWM, VBR, VC) for reverse-biased operation only. It cannot suppress negative-going transients on positive rails or AC waveforms. For bidirectional protection, a pair of 5KP64A-E3/51 devices in series opposition or a dedicated bidirectional part like 5KP64CA is required. Using this part in AC applications risks catastrophic failure due to forward conduction during negative half-cycles.
Does the 5KP64A-E3/51 meet automotive qualification standards?
Yes, the 5KP64A-E3/51 is AEC-Q101 qualified, as confirmed in the Vishay datasheet (Document Number 88308, Revision 20-Nov-12). This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating its suitability for under-hood automotive applications such as engine control units and battery management systems. The HE3 suffix denotes AEC-Q101 qualification, but the E3/51 variant shares the same die and qualification status per Vishay's ordering matrix.
What is the thermal derating behavior of the 5KP64A-E3/51 above 25 °C ambient?
The 5KP64A-E3/51 follows a linear derating curve for peak pulse power: from 100% at TA = 25 °C down to 0% at TJ = 175 °C. Per Figure 2 in the datasheet, its PPPM drops to ~75% at 75 °C ambient and ~50% at 125 °C ambient when mounted on standard FR-4 with typical copper pour. Designers must apply this derating when estimating worst-case surge survival in high-temperature enclosures, especially in automotive under-hood locations where ambient may reach 105 °C.
How does the 5KP64A-E3/51 compare to the 1.5KE68A in terms of surge handling capability?
The 5KP64A-E3/51 provides 5000 W peak pulse power (10/1000 μs), whereas the 1.5KE68A delivers only 1500 W - a 3.3× difference. Both use P600 packaging, but the 5KP64A-E3/51 achieves higher energy absorption through optimized junction geometry and thermal mass. As a result, a single 5KP64A-E3/51 replaces three 1.5KE68A devices in load-dump protection, reducing BOM count, PCB area, and assembly cost while improving reliability through fewer solder joints.
5KP64A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 48.5A
- 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
5KP64A-E3/51 FAQ
1.How can I place an order for 5KP64A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP64A-E3/51 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 5KP64A-E3/51 reliable?
The price and inventory of 5KP64A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP64A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP64A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP64A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP64A-E3/51?
5KP64A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP64A-E3/51 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 5KP64A-E3/51?
For technical support, including 5KP64A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP64A-E3/51 requirements.
6.How does Aetrix verify that 5KP64A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP64A-E3/51 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 5KP64A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP64A-E3/51?
All 5KP64A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP64A-E3/51, 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 5KP64A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP64A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP64A-E3/51 Tags
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