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Vishay General Semiconductor - Diodes Division P4KA8.2HE3/54
- Part No.:
- P4KA8.2HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA8.2HE3/54.pdf
- Description:
- TVS DIODE 6.63VWM 12.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,288
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Product details
Overview
P4KA8.2HE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, rated for 400 W peak pulse power (10/1000 µs), 7.38–9.02 V breakdown voltage at 10 mA, and 12.5 V clamping voltage at 200 A peak surge current. It protects MOSFETs, ICs, and sensor signal lines in automotive powertrain and body electronics against inductive switching transients.
For engineers reviewing the P4KA8.2HE3/54 datasheet, P4KA8.2HE3/54 pinout, P4KA8.2HE3/54 application, or P4KA8.2HE3/54 equivalent, key selection criteria include AEC-Q101 qualification, 185 °C max junction temperature, 0.065 %/°C VBR temperature coefficient, RoHS-compliant matte tin leads, and JESD201 Class 2 whisker resistance - all critical for under-hood reliability and long-term surge immunity.
Technical Context
This TVS diode employs Vishay's patented PAR® construction for low incremental surge resistance and stable clamping under repetitive 10/1000 µs transients at 0.01 % duty cycle. Its unidirectional polarity enables precise reverse-biased protection of DC rails without forward conduction interference.
Designed for high-temperature environments, it maintains specified VBR, IPPM, and VC performance across –65 °C to +185 °C junction range and derates linearly above 25 °C ambient per Figure 2. The DO-204AL package supports solder dip at 260 °C for 40 s and meets UL 94 V-0 flammability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 400 W - sustains automotive load-dump and ISO 7637-2 pulse 5a/b surges without degradation |
| Breakdown Voltage VBR | 7.38–9.02 V at 10 mA - defines precise clamping onset threshold for 8–9 V nominal systems |
| Clamping Voltage VC | 12.5 V at 200 A - limits downstream voltage stress during worst-case transients |
| Stand-off Voltage VWM | 6.63 V - ensures no leakage or conduction during normal 5–6 V rail operation |
| Max Junction Temperature | +185 °C - enables placement near hot engine control units with full derating margin |
| Temperature Coefficient of VBR | 0.065 %/°C - predicts <±0.6 V drift over –40 to +125 °C ambient, critical for precision sensing |
| AEC-Q101 Qualified | Yes - validated for automotive use including temperature cycling, HTRB, and surge lifetime testing |
Pinout & Package
DO-204AL (DO-41) molded epoxy package with axial leads; cathode denoted by color band. Matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC return path / ground reference | Connected to system ground or low-side return; carries full surge current during clamping |
| Cathode | Protected line input | Connected to line being protected (e.g., 12 V battery rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Reduces incremental surge resistance for tighter VC tolerance and lower energy dissipation during repeated transients |
| 400 W peak pulse rating (10/1000 µs) | Meets ISO 7637-2 Pulse 5a (load dump) requirements for 12 V automotive systems |
| AEC-Q101 qualification | Validated for automotive under-hood applications including temperature cycling, HTRB, and surge lifetime |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed engine bay enclosures and meets OEM flammability mandates |
| JESD201 Class 2 whisker resistance | Eliminates tin whisker growth risk in high-reliability automotive ECUs over 15+ year service life |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Motor Drive Power Input |
|---|---|
Use Scenario: Protects microcontroller I/O and power supply inputs from alternator load-dump spikes and relay coil flyback in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V battery rail and LDO input to clamp transients before regulation. Use Value: Limits voltage to ≤12.5 V during 200 A surges, preventing LDO overvoltage failure and ensuring MCU reset integrity. |
Use Scenario: Shields gate drivers and current-sense amplifiers from inductive kickback when controlling BLDC motors in factory automation. IC Role / Device Role / Timing Role: Mounted across motor power stage inputs to absorb 10/1000 µs switching transients from IGBT/MOSFET turn-off. Use Value: Clamps 400 W surges within 1 ns response time, preserving gate oxide integrity and avoiding false overcurrent trips. |
| Automotive Body Control Module (BCM) | Telecom Power Supply Input |
Use Scenario: Safeguards LIN bus transceivers and LED driver ICs from ESD and load-switching noise in door modules and lighting controllers. IC Role / Device Role / Timing Role: Placed on 12 V supply line upstream of local regulators feeding LIN PHY and LED strings. Use Value: Maintains 6.63 V stand-off to avoid leakage in sleep mode while clamping 200 A surges to 12.5 V for robust LIN communication. |
Use Scenario: Guards AC-DC front-end rectifiers and PFC controllers against lightning-induced surges on telecom base station power feeds. IC Role / Device Role / Timing Role: Installed across bulk capacitor input to absorb 10/1000 µs line surges before they reach active PFC stages. Use Value: Withstands 185 °C junction temperature, enabling direct mounting on hot power boards without thermal derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-E3/5A | Lower PPPM (400 W same), but lower VBR min (7.22 V), higher VC (12.8 V), non-AEC-Q101 | Rated for commercial/industrial use only; not qualified for automotive under-hood deployment | Select when AEC-Q101 is not required and slightly higher clamping voltage is acceptable |
| 1.5KE8.2A | Same VBR range, but higher VC (13.4 V), larger DO-201AD package, no JESD201 whisker rating | Higher power (1500 W) but slower response; suited for less space-constrained industrial power supplies | Choose for legacy designs using DO-201AD footprints where board real estate allows larger case |
Compared with SMAJ8.0A-E3/5A and 1.5KE8.2A, the P4KA8.2HE3/54 uniquely combines AEC-Q101 qualification, DO-41 footprint compatibility, JESD201 Class 2 whisker resistance, and 12.5 V clamping - making it the only option qualified for high-reliability automotive power rail protection where space, temperature, and lifetime constraints are strict.
Availability
P4KA8.2HE3/54 is available at Aetrix Electronics and suitable for automotive engine control units, industrial motor drives, and telecom power supply inputs requiring stable component supply, long-lifecycle support, and guaranteed AEC-Q101 compliance.
Supply support for P4KA8.2HE3/54 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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The P4KA8.2HE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for under-hood transient suppression - emphasizing AEC-Q101 qualification, high-temperature stability up to 185 °C, and robust surge handling in compact DO-41 packages.
FAQ
What is the maximum clamping voltage of the P4KA8.2HE3/54 at its rated peak pulse current?
The P4KA8.2HE3/54 has a maximum clamping voltage (VC) of 12.5 V at 200 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 12.5 V during worst-case transients. The P4KA8.2HE3/54 achieves this with low incremental surge resistance enabled by its patented PAR® construction.
Is the P4KA8.2HE3/54 qualified for automotive applications?
Yes, the P4KA8.2HE3/54 is AEC-Q101 qualified and designated as high-reliability/automotive grade (HE3 suffix). It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and surge lifetime validation per automotive requirements. The P4KA8.2HE3/54 is explicitly intended for under-hood use in engine control units, body control modules, and ADAS power domains.
What does the "HE3/54" suffix mean in P4KA8.2HE3/54?
The "HE3" suffix indicates RoHS-compliant, high-reliability/automotive grade construction meeting AEC-Q101, with matte tin-plated leads qualified to JESD201 Class 2 for whisker resistance. The "/54" denotes the preferred packaging code: 13-inch paper tape and reel, 5500 units per reel. The P4KA8.2HE3/54 is supplied in this format with unit weight 0.336 g per device.
How does the P4KA8.2HE3/54 compare to the P4KA8.2A variant?
The P4KA8.2HE3/54 corresponds to the standard P4KA8.2 variant (VBR = 7.38–9.02 V), while P4KA8.2A has tighter VBR tolerance (7.79–8.61 V). Both share identical PPPM (400 W), VC (12.5 V / 12.1 V), and AEC-Q101 qualification. The P4KA8.2HE3/54 is selected when broader VBR range is acceptable for cost-sensitive automotive applications; P4KA8.2A suits designs needing tighter voltage threshold control.
What is the operating temperature range for the P4KA8.2HE3/54?
The P4KA8.2HE3/54 operates across a junction temperature range of –65 °C to +185 °C, with storage temperature matching this span. Its electrical characteristics are specified at 25 °C but fully characterized and derated per Figure 2 in the datasheet. This extended range enables direct mounting on hot surfaces in engine compartments, and the P4KA8.2HE3/54 maintains clamping performance without external heatsinking.
P4KA8.2HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 32A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KA8.2HE3/54 FAQ
1.How can I place an order for P4KA8.2HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA8.2HE3/54 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 P4KA8.2HE3/54 reliable?
The price and inventory of P4KA8.2HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA8.2HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA8.2HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA8.2HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA8.2HE3/54?
P4KA8.2HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA8.2HE3/54 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 P4KA8.2HE3/54?
For technical support, including P4KA8.2HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA8.2HE3/54 requirements.
6.How does Aetrix verify that P4KA8.2HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA8.2HE3/54 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 P4KA8.2HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA8.2HE3/54?
All P4KA8.2HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA8.2HE3/54, 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 P4KA8.2HE3/54 part is unused and in its original packaging.
Return procedure for P4KA8.2HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KA8.2HE3/54 Tags
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