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Vishay General Semiconductor - Diodes Division P6KE170CHE3/73
- Part No.:
- P6KE170CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170CHE3/73.pdf
- Description:
- TVS DIODE 138VWM 244VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,974
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Product details
Overview
P6KE170CHE3/73 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 600 W peak pulse power (10/1000 μs), 179 V maximum breakdown voltage (VBR), 145 V stand-off voltage (VWM), and clamps to ≤234 V at 2.6 A peak pulse current - used in automotive ECUs, industrial PLC I/O modules, and telecom power supplies.
For engineers reviewing the P6KE170CHE3/73 datasheet, P6KE170CHE3/73 pinout, P6KE170CHE3/73 application, or P6KE170CHE3/73 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJL = 20 °C/W), clamping behavior under surge, and RoHS-compliant manufacturing details - all critical for ESD/surge protection design validation and BOM selection.
Technical Context
The P6KE170CHE3/73 operates as a silicon avalanche diode with glass-passivated junction, delivering fast response (<1 ns) and low dynamic impedance during transient events. Its uni-directional polarity uses cathode-band marking and exhibits 3.5 V forward voltage at 50 A per JEDEC test conditions.
It is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), 175 °C max junction temperature, and derates linearly above 25 °C ambient - with thermal resistance junction-to-lead at 20 °C/W enabling direct PCB trace heat sinking without external heatsinks in moderate-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 145 V - Maximum continuous DC or RMS voltage the device blocks without conduction; sets minimum operating rail margin before clamping. |
| VBR (Breakdown min/max) | 162 V / 179 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating voltage but below system damage threshold. |
| VC (Clamping @ IPPM) | 234 V at 2.6 A (10/1000 μs) - Maximum voltage seen by protected circuit during worst-case surge; defines actual stress on downstream ICs/MOSFETs. |
| PPPM | 600 W - Peak transient energy absorption capability; supports protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 24 V–48 V systems. |
| IFSM | 100 A (8.3 ms half-sine) - Surge current handling before failure; enables coordination with 5–10 A fuses in automotive power distribution. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; allows estimation of temperature rise under pulsed power dissipation for layout thermal design. |
| TJ max | 175 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments and sealed industrial enclosures. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-side reference; completes clamping loop when transient exceeds VWM. |
| Cathode | Protected line connection / Avalanche terminal | Connected to line being protected (e.g., 24 V rail); avalanche conduction occurs from cathode to anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates surface leakage paths that degrade clamping consistency. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for engine control, ADAS, and body electronics. |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against lightning-induced surges and inductive switching transients in 24 V/48 V industrial and vehicle systems. |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage overshoot during clamping - critical for safeguarding 175 V-rated MOSFETs and gate drivers in motor drives. |
| RoHS-compliant & whisker-tested (JESD 201 Class 2) | Ensures long-term solder joint integrity in high-reliability assemblies; HE3 suffix confirms compliance for automotive and medical-adjacent equipment. |
Applications
| Automotive Power Rail Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: 24 V battery-supplied ECU power input exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input stage. Use Value: Limits transient voltage to ≤234 V, preventing damage to 36 V-input buck controllers and ensuring system reset-free operation after 120 V/100 ms surges. |
Use Scenario: 24 V digital input channel receiving signals from field sensors subject to inductive kickback and ESD. IC Role / Device Role / Timing Role: Line-side TVS shunting surge energy before optocoupler or Schmitt trigger input. Use Value: Clamps 1 kV/500 Ω IEC 61000-4-5 surges within <1 ns, preserving signal integrity and eliminating false triggering in safety-critical logic inputs. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
|
Use Scenario: -48 V DC feed to remote radio units in cellular base stations, exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Uni-directional clamp on negative rail referenced to chassis ground. Use Value: Withstands repeated 600 W pulses without parameter shift, maintaining VWM stability across 15-year telecom infrastructure deployments. |
Use Scenario: High-side gate driver supply (e.g., for 600 V IGBTs) subjected to Miller-induced voltage spikes during switching transitions. IC Role / Device Role / Timing Role: Localized clamp between gate driver VCC and GND to suppress dv/dt-induced ringing. Use Value: Fast response and low VC prevent unintended IGBT turn-on while allowing gate driver ICs to operate reliably up to 175 °C junction temperature. |
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 | DO-214AA package (smaller footprint), 600 W rating, VBR = 189–209 V, VC = 275 V @ 2.2 A | Higher clamping voltage (+41 V) and lower surge current rating; better suited for space-constrained PCBs where thermal mass is limited. | Select SMBJ170A only if board area is constrained and system can tolerate higher clamping; verify RθJA (50 °C/W) vs. P6KE170CHE3/73's RθJL (20 °C/W) for thermal performance. |
| 1.5KE170A | Same DO-204AC package, 1500 W rating, VBR = 162–179 V, VC = 274 V @ 5.5 A | Higher power rating but significantly higher clamping voltage (+40 V); intended for higher-energy surge environments like AC mains interfaces. | Choose 1.5KE170A only when protecting circuits with >274 V withstand capability and requiring >1 kW surge handling; not suitable as drop-in replacement due to clamping mismatch. |
Compared with SMBJ170A and 1.5KE170A, the P6KE170CHE3/73 offers optimal balance of clamping precision (234 V), thermal coupling (20 °C/W), and AEC-Q101 qualification - making it preferred for automotive and industrial DC power rail protection where voltage margin and long-term reliability are prioritized over raw power rating or miniaturization.
Availability
P6KE170CHE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom DC feeds, and motor drive gate driver protection requiring stable component supply and AEC-Q101 assurance.
Supply support for P6KE170CHE3/73 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, power handling, and automotive qualification.
The P6KE series targets cost-sensitive yet robust overvoltage protection in automotive, industrial, and telecom power systems - leveraging glass-passivated junctions and AEC-Q101 validation to ensure field longevity under harsh thermal and electrical stress.
FAQ
What is the maximum clamping voltage of the P6KE170CHE3/73 under standard test conditions?
The P6KE170CHE3/73 clamps to a maximum of 234 V when subjected to its rated 2.6 A peak pulse current with a 10/1000 μs waveform at 25 °C ambient. This value is measured per JEDEC-standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is the P6KE170CHE3/73 suitable for automotive applications?
Yes, the P6KE170CHE3/73 is AEC-Q101 qualified (confirmed by HE3 suffix), with validated performance across -55 °C to +175 °C junction temperature, thermal shock resistance, and humidity bias testing. It is deployed in engine control units, body control modules, and ADAS power supplies where sustained reliability under vibration, thermal cycling, and load dump conditions is mandatory - making P6KE170CHE3/73 a production-ready automotive-grade TVS.
How does the P6KE170CHE3/73 differ from the P6KE170A-E3/73 variant?
The P6KE170CHE3/73 includes the "H" suffix indicating AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas P6KE170A-E3/73 is commercial-grade (non-automotive). Both share identical electrical specs (VWM = 145 V, VBR = 162–179 V, VC = 234 V), but only P6KE170CHE3/73 undergoes extended reliability testing required for automotive use - confirmed in Vishay document 88369 revision notes and ordering information tables.
What is the thermal resistance specification for the P6KE170CHE3/73, and why does it matter?
The P6KE170CHE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, measured under standard test conditions. This low value enables efficient heat transfer from the silicon die to PCB copper traces or metal-core substrates - allowing designers to estimate temperature rise during repetitive surge events and avoid thermal runaway without requiring external heatsinks in most 24 V–48 V industrial applications.
Can the P6KE170CHE3/73 be used in bi-directional protection circuits?
No, the P6KE170CHE3/73 is a uni-directional TVS diode, identified by its cathode band marking and specified VF = 3.5 V at 50 A. For bi-directional protection, Vishay specifies CA-suffix variants (e.g., P6KE170CA), which have symmetrical breakdown in both polarities and no polarity marking. Using P6KE170CHE3/73 in AC or floating-bus applications would result in unintended forward conduction and failure - always match suffix to circuit topology.
P6KE170CHE3/73 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):
- 138V
- Voltage - Breakdown (Min):
- 153V
- Voltage - Clamping (Max) @ Ipp:
- 244V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
P6KE170CHE3/73 FAQ
1.How can I place an order for P6KE170CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170CHE3/73 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 P6KE170CHE3/73 reliable?
The price and inventory of P6KE170CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170CHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE170CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170CHE3/73?
P6KE170CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170CHE3/73 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 P6KE170CHE3/73?
For technical support, including P6KE170CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170CHE3/73 requirements.
6.How does Aetrix verify that P6KE170CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE170CHE3/73 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 P6KE170CHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE170CHE3/73?
All P6KE170CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170CHE3/73, 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 P6KE170CHE3/73 part is unused and in its original packaging.
Return procedure for P6KE170CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE170CHE3/73 Tags
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