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Vishay General Semiconductor - Diodes Division P6KE33CHE3/73
- Part No.:
- P6KE33CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE33CHE3/73.pdf
- Description:
- TVS DIODE 26.8VWM 47.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,098
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Product details
Overview
P6KE33CHE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (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 at 1.0 mA), 28.2 V stand-off voltage (VWM), 45.7 V clamping voltage (VC) at 13.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P6KE33CHE3/73 datasheet, P6KE33CHE3/73 pinout, P6KE33CHE3/73 application, or P6KE33CHE3/73 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified transient protector requiring precise VWM/VBR margining against system operating voltage, fast response to ESD/EFT events, and thermal derating above 25 °C ambient.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but avalanches rapidly (<1 ns response) when transient voltage exceeds VBR, diverting surge current away from downstream ICs. Its glass-passivated junction ensures stable leakage and low incremental surge resistance.
Rated for 100 A non-repetitive forward surge (8.3 ms half-sine), it supports robust protection in inductive load switching scenarios. Thermal resistance is 20 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient), enabling direct PCB trace heat sinking without external heatsinks in moderate-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V at 1.0 mA - defines minimum trigger threshold and maximum variation across production lot |
| VWM | 28.2 V - maximum continuous working voltage before leakage exceeds 1.0 μA; sets upper limit for protected line voltage |
| 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 energy handling capacity; determines survivability against lightning-induced surges |
| IFSM | 100 A (8.3 ms half-sine) - surge current capability for inductive turn-off transients in motor drivers or solenoid controls |
| TJ max | +175 °C - enables operation in under-hood automotive environments and sealed industrial enclosures |
| Package | DO-204AC (DO-15) - axial-leaded through-hole package with matte tin-plated leads, UL 94 V-0 molded epoxy body |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical epoxy body with cathode band marking on one end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102. Mechanical dimensions: 3.6 mm diameter × 7.6 mm body length, 25.4 mm minimum lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; forms shunt path during avalanche conduction |
| Cathode (banded end) | High-side transient input terminal | Connected to protected line; color band identifies polarity for correct uni-directional placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Enables stable VBR tolerance and <1.0 μA leakage at VWM across -55 °C to +175 °C operating range |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when combined with appropriate series impedance |
| Fast response time (<1 ns) | Clamps transients before sensitive logic or analog inputs experience damaging overvoltage |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and EU Directive 2011/65/EU hazardous substance restrictions |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V battery rail in engine control units exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between VBAT and chassis ground, triggered within nanoseconds of overvoltage onset. Use Value: Limits clamped voltage to 45.7 V, protecting 36 V-rated CAN transceivers and microcontrollers without derating margin loss. |
Use Scenario: 24 V analog input channel of PLC module connected to field-mounted pressure sensors subject to EFT bursts (IEC 61000-4-4). IC Role / Device Role / Timing Role: Primary front-end clamp ahead of RC filter and instrumentation amplifier input stage. Use Value: Suppresses 400 V/5 kHz burst transients to sub-50 V levels, preserving ADC accuracy and preventing latch-up in op-amps. |
| Consumer Power Adapter Output Protection | Telecom Line Card Surge Protection |
|
Use Scenario: 5 V/12 V secondary-side output of AC-DC adapter subjected to conducted surges from shared mains wiring. IC Role / Device Role / Timing Role: Final-stage overvoltage guard before USB ports or display backlight drivers. Use Value: Absorbs 600 W pulses without degradation, maintaining VWM = 28.2 V margin above nominal 24 V output while surviving repeated 10/1000 μs events. |
Use Scenario: TIP/RING line interface of VoIP gateway exposed to lightning-induced surges on PSTN lines (ITU-T K.20/21). IC Role / Device Role / Timing Role: First-line bidirectional-capable (via CA variant) or uni-directional (P6KE33A) shunt element in hybrid protection circuit. Use Value: Clamps induced common-mode surges to ≤45.7 V differential, enabling downstream GDT or MOV coordination without follow-on current risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | Same VBR range (31.4–34.7 V), but SMC package (DO-214AB); 400 W PPPM, lower IPPM (10.3 A) | Surface-mount layout; requires reflow-compatible PCB design and lacks axial-leaded mechanical robustness | Select for space-constrained PCBs where automated assembly and higher board density outweigh through-hole serviceability needs. |
| 1.5KE33A | Same DO-204AC package, identical VBR/VC, but 1500 W PPPM and 43.3 A IPPM; larger die, higher capacitance (150 pF vs. ~50 pF) | Higher-energy surge environments (e.g., outdoor telecom cabinets); less suitable for high-speed data lines due to capacitance | Choose when legacy 1.5KE footprint compatibility is required and surge threat level exceeds 600 W, accepting trade-off in junction capacitance. |
Compared with SMAJ33A and 1.5KE33A, P6KE33CHE3/73 delivers optimal balance of AEC-Q101 qualification, 600 W surge rating, and DO-15 through-hole reliability for cost-sensitive automotive and industrial designs where moderate surge energy and proven mechanical mounting are prioritized.
Availability
P6KE33CHE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC analog inputs, consumer power adapter outputs, and telecom line card protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE33CHE3/73 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, efficiency, and application-specific optimization.
The P6KE series targets cost-effective, high-surge-capability transient protection for automotive, industrial, and consumer systems where DO-204AC packaging, AEC-Q101 compliance, and predictable clamping behavior are essential design requirements.
FAQ
What is the maximum clamping voltage of P6KE33CHE3/73 under standard test conditions?
The maximum clamping voltage (VC) of P6KE33CHE3/73 is 45.7 V when subjected to a 10/1000 μs waveform peak pulse current of 13.1 A. This value is measured per JEDEC standards and represents the highest voltage the protected circuit will experience during a defined surge event. The P6KE33CHE3/73 maintains this clamping performance across its qualified temperature range and is validated for consistency in AEC-Q101 stress testing.
Is P6KE33CHE3/73 suitable for automotive applications?
Yes, P6KE33CHE3/73 is AEC-Q101 qualified and specifically rated for automotive use, including under-hood environments. Its operating junction temperature range of -55 °C to +175 °C, glass-passivated junction stability, and compliance with JESD 201 Class 2 whisker resistance make it suitable for engine control units, body control modules, and infotainment power supplies. The HE3 suffix confirms its automotive-grade material categorization per Vishay's policy.
How does the HE3 suffix differ from the E3 suffix in P6KE33CHE3/73?
The HE3 suffix in P6KE33CHE3/73 denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 indicates commercial-grade RoHS compliance only. Both meet UL 94 V-0 flammability and RoHS Directive 2011/65/EU, but HE3 undergoes additional automotive stress screening including temperature cycling, highly accelerated life testing, and failure analysis. P6KE33CHE3/73 is therefore approved for mission-critical automotive subsystems where E3 variants are restricted to consumer or industrial use.
What is the thermal resistance of P6KE33CHE3/73, and how does it affect PCB layout?
P6KE33CHE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 75 °C/W. For reliable operation at full 5.0 W power dissipation, PCB copper pour connected to both leads acts as an effective heatsink - increasing copper area reduces effective RθJA. Layout best practice is to use ≥5 mm² of 1 oz. copper per lead, avoiding thermal isolation; this allows sustained operation up to +125 °C ambient without derating.
Can P6KE33CHE3/73 be used in bi-directional protection circuits?
No, P6KE33CHE3/73 is a uni-directional TVS diode, identifiable by its cathode band marking. Bi-directional operation requires the CA-suffixed variant (e.g., P6KE33CA). Using P6KE33CHE3/73 in AC or floating signal paths risks reverse-bias breakdown below system voltage, leading to premature failure. For bi-directional applications such as telecom line protection or RS-485 bus clamping, P6KE33CA or equivalent must be selected instead of P6KE33CHE3/73.
P6KE33CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 26.8V
- Voltage - Breakdown (Min):
- 29.7V
- Voltage - Clamping (Max) @ Ipp:
- 47.7V
- Current - Peak Pulse (10/1000µs):
- 12.6A
- 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)
P6KE33CHE3/73 FAQ
1.How can I place an order for P6KE33CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE33CHE3/73 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 P6KE33CHE3/73 reliable?
The price and inventory of P6KE33CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE33CHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE33CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE33CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE33CHE3/73?
P6KE33CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE33CHE3/73 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 P6KE33CHE3/73?
For technical support, including P6KE33CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE33CHE3/73 requirements.
6.How does Aetrix verify that P6KE33CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE33CHE3/73 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 P6KE33CHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE33CHE3/73?
All P6KE33CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE33CHE3/73, 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 P6KE33CHE3/73 part is unused and in its original packaging.
Return procedure for P6KE33CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE33CHE3/73 Tags
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