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Vishay General Semiconductor - Diodes Division 5KP70HE3/54
- Part No.:
- 5KP70HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP70HE3/54.pdf
- Description:
- TVS DIODE 70VWM 125VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:5,703
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Product details
Overview
5KP70HE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection on DC power rails and signal lines. It features 70 V stand-off voltage (VWM), 87.1 V maximum clamping voltage (VC) at 44.2 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 against inductive switching transients.
For engineers reviewing the 5KP70HE3/54 datasheet, 5KP70HE3/54 pinout, 5KP70HE3/54 application, or 5KP70HE3/54 equivalent, key selection criteria include clamping voltage margin vs. protected device breakdown, unidirectional polarity requirement, AEC-Q101 qualification status, P600 thermal dissipation capability, and 5000 W surge rating under standardized 10/1000 μs waveform conditions.
Technical Context
The 5KP70HE3/54 operates as a silicon avalanche diode with glass-passivated P600 junction, triggering when reverse voltage exceeds its 77.8–86.0 V breakdown range (VBR) at 5 mA test current. Its low incremental surge resistance ensures stable clamping during multi-kilowatt transients.
It delivers 5000 W peak pulse power per JEDEC-standard 10/1000 μs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, with maximum junction temperature of 175 °C and 8.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 70 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for protected circuitry. |
| VBR (min/max) | 77.8 V / 86.0 V at 5 mA - Breakdown voltage range confirming avalanche initiation threshold; ensures consistent turn-on across production lots. |
| VC @ IPPM | 87.1 V at 44.2 A - Clamped voltage during full 5000 W transient; must remain below protected device's absolute maximum rating. |
| PPPM | 5000 W (10/1000 μs) - Peak surge energy handling capacity; validates suitability for automotive load-dump and ISO 7637-2 pulse 5a compliance. |
| IFSM | 600 A (8.3 ms half-sine) - Non-repetitive forward surge rating; supports crowbar-style overvoltage shutdown without fuse blow delay. |
| Polarity | Unidirectional - Cathode-banded configuration; requires correct orientation in series with positive supply rail or signal line. |
| TJ max. | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments with minimal derating. |
Pinout & Package
5KP70HE3/54 uses the P600 axial-leaded package: molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, 0.340–0.360 inch (8.6–9.1 mm) body diameter, 0.375 inch (9.5 mm) length, and 1.0 inch (25.4 mm) minimum lead spacing. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; carries full surge current during clamping event. |
| Cathode | High-side connection point | Marked with color band; connected to protected line (e.g., +12 V rail); defines unidirectional conduction direction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including temperature cycling, humidity bias, and mechanical shock per JESD22 standards. |
| 5000 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) surges up to 120 V/350 ms without degradation, enabling single-device protection without external crowbar circuits. |
| Low clamping ratio (VC/VBR ≈ 1.13) | Minimizes overvoltage stress on downstream components-e.g., 87.1 V clamp vs. 77.8 V min VBR provides only 12 % overhead margin. |
| P600 thermal mass | Enables 8.0 W continuous power dissipation at TL = 75 °C, supporting sustained fault conditions in industrial power supplies without thermal runaway. |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and automotive material compliance requirements (Vishay Doc. 99912). |
Applications
| Automotive Power Rail Protection | Industrial DC Power Supply Output |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor, clamping surges within 1 ns response time. Use Value: Limits voltage to ≤87.1 V during 5000 W transients, preventing damage to 100 V-rated MOSFETs and PMICs downstream. |
Use Scenario: Safeguarding output stage of 48 V telecom rectifiers against inductive switching spikes. IC Role / Device Role / Timing Role: Standoff-connected TVS absorbing repetitive 10/1000 μs surges induced by relay contact bounce or motor drive commutation. Use Value: Maintains system uptime by avoiding fuse blow or breaker trip-absorbs energy while allowing controlled shutdown via supervisor IC. |
| Motor Drive Gate Driver Protection | Automotive Sensor Signal Line Protection |
Use Scenario: Shielding high-side gate drivers in BLDC inverters from Miller-induced voltage spikes during fast IGBT switching. IC Role / Device Role / Timing Role: TVS placed across driver output and ground, triggered only during overvoltage events exceeding 70 V. Use Value: Prevents false turn-on and latch-up in gate drivers by clamping transients to 87.1 V-well below typical 100 V driver VDS(max). |
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS (CJ < 100 pF at VWM) placed inline with signal trace, cathode to VCC. Use Value: Preserves signal integrity with <1 ns response and no DC loading-leakage <2 μA at 70 V ensures minimal offset error in precision sensor front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ70A-E3/52 | Lower PPPM (600 W), smaller SMB package, same 70 V VWM but higher VC (113 V), non-AEC-Q101. | Not suitable for automotive load dump; limited to low-energy ESD/surge on PCB-level signals. | Select only for space-constrained consumer electronics where 5000 W rating is unnecessary. |
| 1.5KE70A | Same VWM/VC specs but lower PPPM (1500 W), DO-201 package, non-AEC-Q101, higher VF (3.5 V). | Lacks automotive qualification and thermal robustness for sustained surge duty cycles. | Acceptable for cost-sensitive industrial controls with infrequent transients and adequate heatsinking. |
Compared with SMBJ70A-E3/52 and 1.5KE70A, the 5KP70HE3/54 uniquely combines AEC-Q101 qualification, 5000 W surge capacity, and P600 thermal performance-making it the only choice for automotive-grade, high-reliability DC rail protection where failure is not an option.
Availability
5KP70HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial DC power supplies, motor drive inverters, and sensor interface modules requiring stable component supply across extended product lifecycles.
Supply support for 5KP70HE3/54 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, automotive qualification, and high-power handling.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems-replacing traditional crowbar circuits with robust, self-resetting silicon avalanche protection.
FAQ
What is the clamping voltage of the 5KP70HE3/54 under full-rated surge current?
The 5KP70HE3/54 has a maximum clamping voltage (VC) of 87.1 V when subjected to its rated peak pulse current of 44.2 A (10/1000 μs waveform). This value is measured per JEDEC standard test conditions and guarantees that protected circuitry will not experience voltages exceeding 87.1 V during worst-case transients. The 5KP70HE3/54 maintains this clamping performance across its specified temperature range and lifetime.
Is the 5KP70HE3/54 suitable for bidirectional surge protection?
No, the 5KP70HE3/54 is strictly unidirectional-its cathode is marked with a color band and it conducts only when reverse-biased beyond its breakdown voltage. For bidirectional protection, a separate symmetric TVS like the 5KP70CA would be required. Using the 5KP70HE3/54 in reverse polarity or AC-coupled applications risks permanent failure due to forward conduction during normal operation.
Does the 5KP70HE3/54 meet automotive qualification standards?
Yes, the 5KP70HE3/54 is explicitly AEC-Q101 qualified, as confirmed in Vishay Document 88308, Note (1) on page 3. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock-validating its use in under-hood automotive environments. The HE3 suffix denotes compliance with JESD201 Class 2 whisker resistance and RoHS requirements.
What is the thermal derating behavior of the 5KP70HE3/54 above 25 °C ambient?
The 5KP70HE3/54 follows linear thermal derating per Figure 2 in Vishay Document 88308: peak pulse power drops to 50 % at TJ = 125 °C and reaches zero at 175 °C. Its steady-state power dissipation (PD = 8.0 W) also derates linearly above TL = 75 °C. Engineers must apply these curves when designing heatsinking for repeated surge events in high-ambient environments such as engine compartments.
How does the 5KP70HE3/54 compare to the 5KP70A variant?
The 5KP70HE3/54 differs from the 5KP70A primarily in qualification and plating: the HE3 suffix indicates AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas the base 5KP70A (E3 suffix) is commercial-grade only. Both share identical electrical specs (VWM = 70 V, VC = 87.1 V, PPPM = 5000 W), but only the 5KP70HE3/54 is approved for automotive production use.
5KP70HE3/54 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):
- 70V
- Voltage - Breakdown (Min):
- 77.6V
- Voltage - Clamping (Max) @ Ipp:
- 125V
- Current - Peak Pulse (10/1000µs):
- 40A
- 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
5KP70HE3/54 FAQ
1.How can I place an order for 5KP70HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP70HE3/54 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 5KP70HE3/54 reliable?
The price and inventory of 5KP70HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP70HE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP70HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP70HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP70HE3/54?
5KP70HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP70HE3/54 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 5KP70HE3/54?
For technical support, including 5KP70HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP70HE3/54 requirements.
6.How does Aetrix verify that 5KP70HE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP70HE3/54 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 5KP70HE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP70HE3/54?
All 5KP70HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP70HE3/54, 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 5KP70HE3/54 part is unused and in its original packaging.
Return procedure for 5KP70HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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