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Vishay General Semiconductor - Diodes Division P6KE33AHE3/54
- Part No.:
- P6KE33AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33AHE3/54.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,523
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Product details
Overview
P6KE33AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 33 V breakdown voltage (VBR min/max: 31.4–34.7 V), 28.2 V stand-off voltage (VWM), 45.7 V clamping voltage at 13.1 A peak pulse current (10/1000 µs), and 600 W peak pulse power rating - deployed in automotive ECUs to safeguard microcontrollers against load dump and inductive switching transients.
For engineers reviewing the P6KE33AHE3/54 datasheet, P6KE33AHE3/54 pinout, P6KE33AHE3/54 application, or P6KE33AHE3/54 equivalent, this AEC-Q101 qualified TVS offers verified surge immunity for 12 V automotive systems, validated clamping performance under repetitive 10/1000 µs pulses, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 28.2 V, it avalanches into low-impedance conduction to divert transient energy away from downstream ICs. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and fast response time (<1 ns), critical for suppressing ESD and lightning-induced surges before damage occurs.
Thermal design is constrained by RθJL = 20 °C/W (junction-to-lead) and TJ(max) = 175 °C, with derating required above 25 °C ambient. The device sustains 100 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 0.098 %/°C VBR temperature coefficient - enabling predictable clamping behavior across automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V at IT = 1.0 mA - defines precise avalanche onset window for reliable triggering without false trips |
| VWM | 28.2 V - maximum continuous reverse operating voltage; must exceed system nominal DC rail (e.g., 24 V industrial bus) |
| VC @ IPPM | 45.7 V at 13.1 A (10/1000 µs) - clamping voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - peak transient power absorption capability; determines survivability against ISO 7637-2 Pulse 1/2a/5a events |
| IFSM | 100 A (8.3 ms half-sine) - surge current handling for short-duration inrush or fault conditions |
| TJ(max) | 175 °C - maximum junction temperature; enables operation in under-hood automotive environments |
| RθJL | 20 °C/W - thermal resistance from junction to lead; informs PCB copper pour requirements for heat dissipation |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, epoxy-molded case with matte tin-plated leads. Cathode indicated by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge events |
| Cathode | Avalanche conduction terminal | Connected to protected line (e.g., 24 V rail); initiates clamping when reverse voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive electronics including engine control, body modules, and ADAS sensors |
| Glass passivated junction | Ensures ±5 % VBR tolerance and long-term stability under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 16750-2 load dump surges up to 35 V for 400 ms without degradation |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage stress on protected ICs - e.g., keeps 3.3 V MCU I/O below 5 V absolute max during transients |
| UL 94 V-0 molded compound | Self-extinguishing encapsulation meets flammability requirements for enclosed automotive and industrial enclosures |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V supply inputs in engine control units (ECUs) against load dump (ISO 16750-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, clamping surges within nanoseconds. Use Value: Limits rail voltage to ≤45.7 V during 13.1 A transients, preventing latch-up or gate oxide rupture in downstream PMICs and MCUs. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on signal lines referenced to local ground, absorbing <100 ns spikes. Use Value: Maintains signal integrity by clamping transients before they propagate to ADC front-ends, avoiding measurement corruption or reset events. |
| Consumer Power Adapter Input Protection | Telecom Line Card Surge Protection |
|
Use Scenario: Secondary-side DC output protection in wall adapters and USB PD chargers subjected to capacitor discharge and hot-plug surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on +5 V/+9 V/+12 V outputs, triggered only during overvoltage faults beyond normal regulation range. Use Value: Prevents catastrophic failure of connected devices (e.g., smartphones, IoT hubs) by limiting output voltage excursion to 45.7 V during fault conditions. |
Use Scenario: Primary-level surge suppression on Ethernet PHY power rails (e.g., 3.3 V bias for magnetics) in telecom base station line cards. IC Role / Device Role / Timing Role: Fast-response shunt element co-located with DC-DC converter input, activated before transient reaches sensitive PHY silicon. Use Value: Enables compliance with ITU-T K.20/21/45 recommendations by clamping induced surges to safe levels without affecting steady-state operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | Same VWM (28.2 V) and VC (45.7 V), but SMD SMA package (vs. through-hole DO-15); 400 W PPPM (vs. 600 W) | Preferred for space-constrained PCBs where reflow assembly is used; unsuitable for high-energy 10/1000 µs surges exceeding 400 W | Select SMAJ33A only if board layout mandates SMD and surge energy remains ≤400 W |
| 1.5KE33A | Identical VBR, VWM, VC, and PPPM, but TO-204AE (DO-41) package; no AEC-Q101 qualification | Acceptable for commercial/industrial use where automotive qualification is not required; same thermal profile but different mounting | Choose 1.5KE33A for cost-sensitive non-automotive designs where AEC-Q101 is unnecessary |
Compared with SMAJ33A and 1.5KE33A, P6KE33AHE3/54 uniquely combines AEC-Q101 qualification, 600 W surge rating, and DO-15 through-hole robustness - making it the only option qualified for under-hood automotive deployment with full ISO 16750-2 compliance.
Availability
P6KE33AHE3/54 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom line card development requiring stable component supply and traceable sourcing.
Supply support for P6KE33AHE3/54 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 and automotive-grade qualification.
The P6KE series targets cost-effective, high-surge-capability transient protection for DC power and signal lines in automotive, industrial, and consumer applications - optimized for DO-15 mounting and AEC-Q101 compliance.
FAQ
What is the clamping voltage of P6KE33AHE3/54 and how is it measured?
The clamping voltage of P6KE33AHE3/54 is 45.7 V, measured at 13.1 A peak pulse current using a standardized 10/1000 µs waveform per IEC 61000-4-5. This value represents the maximum voltage imposed on the protected circuit during surge conduction and is guaranteed across the full operating temperature range of −55 °C to +175 °C. The P6KE33AHE3/54 achieves this clamping level while maintaining low dynamic impedance during transient events.
Is P6KE33AHE3/54 suitable for automotive applications?
Yes, P6KE33AHE3/54 is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and ADAS modules. Its DO-15 package, 175 °C maximum junction temperature, and compliance with ISO 16750-2 load dump testing make it suitable for under-hood and cabin environments. The HE3 suffix confirms its AEC-Q101 qualification status, distinguishing it from commercial-grade variants.
What does the "HE3/54" suffix mean in P6KE33AHE3/54?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/54" denotes the preferred package code for 13-inch paper tape and reel packaging with 4000 units per reel. This ordering format ensures traceability, automotive-grade reliability, and compatibility with automated SMT placement equipment when used with appropriate carrier tape feeders.
How does P6KE33AHE3/54 differ from bidirectional TVS diodes like P6KE33CA?
P6KE33AHE3/54 is unidirectional and intended for DC line protection where polarity is fixed (e.g., +24 V rail to ground), offering lower leakage and tighter VBR tolerance. In contrast, P6KE33CA is bidirectional and suited for AC-coupled or floating signal lines (e.g., RS-485, CAN bus). The P6KE33AHE3/54 cathode band identifies polarity, whereas P6KE33CA has no marking - a critical distinction affecting circuit topology and grounding strategy.
What is the thermal resistance and power derating behavior of P6KE33AHE3/54?
P6KE33AHE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 75 °C/W. Its 5.0 W steady-state power dissipation (PD) is rated at TL = 75 °C on an infinite heatsink; derating begins linearly above 25 °C ambient, reaching zero at 175 °C. This allows reliable operation in sealed enclosures with minimal copper area, provided lead temperature stays within limits.
P6KE33AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- Power - Peak Pulse:
- 600W
- 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:
- DO-204AC (DO-15)
P6KE33AHE3/54 FAQ
1.How can I place an order for P6KE33AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33AHE3/54 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 P6KE33AHE3/54 reliable?
The price and inventory of P6KE33AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE33AHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE33AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33AHE3/54?
P6KE33AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33AHE3/54 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 P6KE33AHE3/54?
For technical support, including P6KE33AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33AHE3/54 requirements.
6.How does Aetrix verify that P6KE33AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE33AHE3/54 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 P6KE33AHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE33AHE3/54?
All P6KE33AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33AHE3/54, 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 P6KE33AHE3/54 part is unused and in its original packaging.
Return procedure for P6KE33AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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