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Vishay General Semiconductor - Diodes Division P6KE170A-E3/54
- Part No.:
- P6KE170A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170A-E3/54.pdf
- Description:
- TVS DIODE 145VWM 234VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,322
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Product details
Overview
P6KE170A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 170 V breakdown voltage (VBR = 162–179 V at 1.0 mA), 234 V maximum clamping voltage (VC) at 2.6 A peak pulse current, 600 W peak pulse power rating (10/1000 μs waveform), and DO-15 package with AEC-Q101 qualification for automotive-grade reliability. It protects MOSFETs and ICs against inductive switching transients in industrial power supplies.
For engineers reviewing the P6KE170A-E3/54 datasheet, P6KE170A-E3/54 pinout, P6KE170A-E3/54 application, or P6KE170A-E3/54 equivalent, key selection criteria include clamping voltage margin vs. protected device's absolute maximum rating, standoff voltage (VWM = 145 V) compatibility with operating rail, thermal resistance (RθJA = 75 °C/W), unidirectional polarity marking, and 175 °C max junction temperature for high-ambient environments.
Technical Context
The P6KE170A-E3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to ESD and surge events. Its unidirectional configuration provides cathode-marked polarity for DC-biased circuits, and its 10/1000 μs waveform-rated 600 W pulse capability supports repetitive transient suppression at ≤0.01% duty cycle.
Clamping performance is defined by VC = 234 V at IPPM = 2.6 A, with low incremental surge resistance ensuring minimal voltage overshoot during fast-rising transients. The device exhibits a +0.108 %/°C temperature coefficient of VBR, requiring derating above 25 °C per Fig. 2 - critical for under-hood automotive or enclosed industrial applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V at 1.0 mA - defines reliable avalanche initiation threshold across production lot and temperature range |
| VWM | 145 V - maximum continuous reverse working voltage; must exceed system DC rail by ≥10% to avoid leakage-induced heating |
| VC @ IPPM | 234 V at 2.6 A (10/1000 μs) - clamped voltage seen by protected IC; must stay below downstream device's absolute max rating |
| PPPM | 600 W - peak transient energy absorption capacity; determines survivability against ISO 7637-2 Pulse 1/2a/5a waveforms |
| IFSM | 100 A (8.3 ms half-sine) - surge current handling for non-repetitive fault conditions such as load dump |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance; dictates required PCB copper area and airflow for sustained 5.0 W dissipation |
| TJ max | +175 °C - maximum junction temperature; enables operation in engine control units and industrial motor drives |
Pinout & Package
Package: DO-15 (DO-204AC), axial-leaded, epoxy-molded case with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Cathode indicated by color band on one end; anode is unmarked lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Current entry terminal in forward bias; connected to lower-potential side of protected circuit | Must be tied to ground or return path when used in common-anode configuration for positive rail protection |
| Cathode (banded lead) | Current exit terminal in forward bias; connected to higher-potential side (e.g., +12 V rail) | Reverse-biased during normal operation; avalanches into conduction only when VIN exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics over 1000+ surge cycles without parameter drift |
| 600 W peak pulse power (10/1000 μs) | Supports compliance with IEC 61000-4-5 Level 4 (4 kV line-to-line) when combined with series impedance |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive powertrain and body electronics per stress test requirements including HTOL, TCT, and ESD HBM ≥8 kV |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected MOSFET gate oxide or microcontroller I/O pins during transient events |
| UL 94 V-0 molded compound | Prevents flame propagation in enclosed enclosures during catastrophic failure modes |
Applications
| Automotive Load Dump Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: 12 V/24 V vehicle electrical systems subjected to alternator load dump transients up to 120 V for 400 ms. IC Role / Device Role / Timing Role: Primary clamping device placed directly across battery input to suppress ISO 7637-2 Pulse 5a before it reaches DC-DC converters and MCU power rails. Use Value: Clamps peak voltage to 234 V while absorbing 600 W pulses, preventing damage to downstream 36 V-rated LDOs and CAN transceivers. |
Use Scenario: Analog input modules in programmable logic controllers exposed to field-wiring induced surges from solenoid switching. IC Role / Device Role / Timing Role: Front-end TVS on 0–10 V or 4–20 mA sensor inputs, placed ahead of precision op-amps and ADC drivers. Use Value: Sub-ns response limits transient duration to <100 ns, avoiding saturation of instrumentation amplifiers and preserving measurement integrity. |
| Telecom Power Supply Rail Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Secondary-side 48 V DC distribution in telecom rectifier cabinets subject to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS on output bus, coordinated with upstream MOVs and gas discharge tubes for staged clamping. Use Value: 145 V VWM allows safe operation at nominal 48 V ±10%, while 234 V VC protects 60 V-rated FETs and PMICs. |
Use Scenario: Brushless DC motor inverters in washing machines where back-EMF spikes exceed 300 V during rapid deceleration. IC Role / Device Role / Timing Role: DC bus TVS across bulk capacitor terminals to clamp regenerative voltage spikes before they stress IGBT gate drivers. Use Value: 175 °C TJ max ensures reliability inside sealed motor control housings with ambient temperatures up to 105 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | Same VBR range (162–179 V), but SMC (DO-214AB) package; 600 W rating; lower RθJA (50 °C/W) | Better thermal performance in space-constrained layouts; requires PCB footprint change from axial DO-15 to surface-mount SMC | Select SMBJ170A when board real estate is limited and reflow assembly is available; verify mechanical mounting strength for vibration-prone environments |
| 1.5KE170A | Same VBR and DO-15 package, but 1500 W peak power (10/1000 μs); higher IPPM (10.5 A); larger body size | Higher surge margin for infrequent but extreme events (e.g., direct lightning coupling); increased capacitance may affect high-speed signal lines | Choose 1.5KE170A where legacy 1.5 kW surge standards apply or where design margin must exceed 600 W without layout change |
Compared with SMBJ170A and 1.5KE170A, the P6KE170A-E3/54 offers optimal balance of cost, proven automotive qualification (AEC-Q101), and axial through-hole mechanical robustness - making it preferred for high-vibration, medium-surge industrial and automotive body applications where SMT reliability concerns exist.
Availability
P6KE170A-E3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC analog inputs, telecom power distribution, and consumer appliance motor controls requiring stable component supply and traceable RoHS-compliant sourcing.
Supply support for P6KE170A-E3/54 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, power efficiency, and automotive-grade qualification.
The P6KE series is part of Vishay's TRANSZORB® TVS platform, engineered for cost-effective, high-energy transient suppression in commercial and automotive power and signal interfaces where robustness and standardized testing matter.
FAQ
What is the maximum clamping voltage of the P6KE170A-E3/54 under standard test conditions?
The P6KE170A-E3/54 has a maximum clamping voltage (VC) of 234 V when subjected to a 10/1000 μs waveform at IPPM = 2.6 A. This value is measured per JEDEC standards and represents the peak voltage imposed on the protected circuit during worst-case surge events. The P6KE170A-E3/54 maintains this clamping performance across its full operating temperature range, supporting designs where downstream components have tight voltage tolerances.
Is the P6KE170A-E3/54 suitable for automotive applications?
Yes, the P6KE170A-E3/54 is AEC-Q101 qualified (per HE3 suffix variants), and the E3 suffix indicates RoHS compliance and JESD 201 Class 1A whisker resistance. While the P6KE170A-E3/54 itself carries the commercial-grade E3 suffix, its underlying die and construction meet AEC-Q101 stress test requirements - confirmed in Vishay Document 88369, Note (1). For production automotive use, the P6KE170AHE3/54 variant is recommended; however, the P6KE170A-E3/54 shares identical electrical specs and is widely deployed in non-safety-critical automotive subsystems.
How does the P6KE170A-E3/54 differ from bidirectional TVS diodes like P6KE170CA?
The P6KE170A-E3/54 is unidirectional and features a cathode band for polarity-sensitive DC applications, whereas P6KE170CA is bidirectional with no polarity marking and symmetric clamping in both directions. The P6KE170A-E3/54 has a forward voltage drop (~3.5 V at 50 A), while P6KE170CA does not conduct forward - making the P6KE170A-E3/54 appropriate for protecting positive rails referenced to ground, and P6KE170CA better suited for AC lines or differential data buses. Their VBR and VC values differ slightly due to internal structure.
What is the thermal resistance and power derating behavior of the P6KE170A-E3/54?
The P6KE170A-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a junction-to-lead (RθJL) of 20 °C/W. Its steady-state power dissipation is rated at 5.0 W on an infinite heatsink at TL = 75 °C (Fig. 5), but must be derated linearly above 25 °C ambient - e.g., to ~3.5 W at 70 °C ambient. This derating is essential for reliability in enclosed enclosures; the P6KE170A-E3/54's 175 °C TJ max allows headroom for such conditions.
Can the P6KE170A-E3/54 be used in parallel for higher surge current handling?
No - the P6KE170A-E3/54 should not be paralleled without external balancing resistors, due to manufacturing variations in VBR (±5% tolerance) that cause uneven current sharing during transients. Mismatched avalanche onset can result in one device absorbing >80% of the surge, leading to premature failure. For higher current needs, select a single higher-rated device (e.g., 1.5KE170A) or use a TVS array with matched dies. The P6KE170A-E3/54 is optimized for discrete point-of-load protection, not scalable parallel architectures.
P6KE170A-E3/54 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):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- Power - Peak Pulse:
- 600W
- 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:
- DO-204AC (DO-15)
P6KE170A-E3/54 FAQ
1.How can I place an order for P6KE170A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170A-E3/54 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 P6KE170A-E3/54 reliable?
The price and inventory of P6KE170A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170A-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE170A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170A-E3/54?
P6KE170A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170A-E3/54 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 P6KE170A-E3/54?
For technical support, including P6KE170A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170A-E3/54 requirements.
6.How does Aetrix verify that P6KE170A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE170A-E3/54 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 P6KE170A-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE170A-E3/54?
All P6KE170A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170A-E3/54, 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 P6KE170A-E3/54 part is unused and in its original packaging.
Return procedure for P6KE170A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE170A-E3/54 Tags
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