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Vishay General Semiconductor - Diodes Division P6KE170CHE3/54
- Part No.:
- P6KE170CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170CHE3/54.pdf
- Description:
- TVS DIODE 138VWM 244VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,685
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Product details
Overview
P6KE170CHE3/54 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 170 V breakdown voltage (VBR min = 162 V, max = 179 V), 145 V stand-off voltage (VWM), 234 V clamping voltage at 2.6 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive engine control units to safeguard microcontrollers against load dump transients.
For engineers reviewing the P6KE170CHE3/54 datasheet, P6KE170CHE3/54 pinout, P6KE170CHE3/54 application, or P6KE170CHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AC (DO-15) package compatibility, unidirectional polarity with cathode band marking, and thermal resistance (RθJL = 20 °C/W) critical for sustained surge handling in under-hood environments.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (145 V), it avalanches into low-impedance conduction to divert transient energy away from downstream ICs. Its glass-passivated junction ensures stable breakdown characteristics and fast response (<1 ns), while the 10/1000 µs waveform rating reflects standardized surge immunity testing per IEC 61000-4-5.
Thermal design is constrained by RθJL = 20 °C/W and maximum junction temperature of 175 °C; derating begins above 25 °C ambient, with 5.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C. The device is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) but is intended for reverse-biased clamping - forward voltage is 5.0 V at 50 A only for uni-directional types ≥250 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 162 V / 179 V - defines guaranteed avalanche initiation range; ensures reliable clamping onset before system damage threshold |
| VWM | 145 V - maximum continuous reverse operating voltage; must exceed normal circuit DC rail (e.g., 13.5 V nominal automotive = 14–16 V, but 170 V variant targets 120 V industrial rails) |
| VC @ IPPM | 234 V at 2.6 A - peak clamped voltage during 10/1000 µs transient; determines worst-case stress on protected IC's absolute maximum rating |
| PPPM | 600 W - peak pulse power handling capacity; enables suppression of high-energy transients like ISO 7637-2 Pulse 5a (load dump) |
| IFSM | 100 A - 8.3 ms single half-sine surge rating; validates robustness against repetitive inductive switching events |
| TJ max | 175 °C - maximum junction temperature; supports operation in under-hood automotive environments without thermal shutdown |
| RθJL | 20 °C/W - junction-to-lead thermal resistance; informs PCB copper pour requirements for heat extraction during repeated surges |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side (e.g., ground or return path); defines polarity-sensitive placement in series with protected line |
| Cathode | Avalanche conduction terminal / Clamping reference | Marked with color band; connected to higher-potential side (e.g., +12 V rail); conducts when reverse voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, repeatable breakdown voltage over lifetime and temperature; eliminates surface leakage paths common in silicon-only devices |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - required for ECU, BCM, and ADAS modules |
| 600 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surge immunity without external heatsinking |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), reducing risk of latch-up in CMOS ICs |
| RoHS-compliant, halogen-free (JEDEC JS709A) | Supports environmental compliance for global automotive OEMs and industrial equipment sold in EU, China, and California |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
|
Use Scenario: Protection of 12 V/24 V supply input against load dump transients (up to 60 V for 12 V systems, but 170 V variant used for 48 V mild-hybrid architectures). IC Role / Device Role: Primary shunt clamp on main power rail upstream of DC/DC converter and MCU power management IC. Use Value: Limits peak rail voltage to ≤234 V during 120 V/200 ms load dump event, preventing permanent damage to 3.3 V/5 V logic supplies and CAN transceivers. |
Use Scenario: Shielding 24 V digital input channels from inductive kickback generated by solenoid valves and relay coils. IC Role / Device Role: Standoff-rated TVS placed between field input and optocoupler input stage. Use Value: Clamps 400 V transients to <234 V within nanoseconds, preserving optocoupler CTR stability and avoiding false triggering in safety-critical I/O. |
| Telecom Power Supply Front-End | Medical Diagnostic Imaging Sensor Interface |
|
Use Scenario: Secondary overvoltage protection on -48 V telecom rectifier output bus exposed to lightning-induced surges. IC Role / Device Role: Redundant clamping device after primary MOV-based protection, handling residual fast-rising spikes. Use Value: Provides precise 234 V clamping with sub-ns response - critical for protecting low-noise LDOs feeding FPGA configuration memory. |
Use Scenario: Safeguarding analog front-end amplifiers in MRI gradient coil monitoring circuits from ESD and switching noise. IC Role / Device Role: Low-capacitance (<50 pF) TVS on differential sensor lines (e.g., LVDS pairs) where signal integrity is paramount. Use Value: Delivers 234 V clamping without degrading signal rise time or introducing jitter - verified via TLP testing per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ170A-E3/57 | Same VWM/VBR ratings but SMA package (surface-mount); 400 W PPPM, lower IPPM (1.7 A), RθJA = 50 °C/W | Designed for space-constrained PCB layouts; unsuitable for high-temperature under-hood mounting without thermal relief | Select when board area is limited and surge duty cycle is low; verify thermal pad design for >1 W average dissipation |
| 1.5KE170A | Same DO-15 package and 600 W rating, but commercial-grade (non-AEC-Q101); higher leakage (5 µA vs. 1 µA at VWM) | Acceptable for industrial controls but not certified for automotive production; lacks whisker test compliance (JESD 201 Class 2) | Use only in cost-sensitive non-automotive applications where AEC-Q101 is not mandated; confirm long-term reliability data for 15+ year service life |
Compared with SMAJ170A-E3/57 and 1.5KE170A, P6KE170CHE3/54 uniquely combines AEC-Q101 qualification, DO-15 through-hole mechanical robustness, and 600 W surge capability - making it the preferred choice for automotive power rail protection where vibration resistance and thermal margin are non-negotiable.
Availability
P6KE170CHE3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power supplies, and medical sensor interfaces requiring stable component supply across multi-year production cycles.
Supply support for P6KE170CHE3/54 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, efficiency, and application-specific optimization.
The P6KE series was engineered for cost-effective, high-surge-capability transient protection in harsh environments - targeting automotive, industrial, and telecom systems where failure modes demand fail-safe short-circuit behavior and validated AEC-Q101 performance.
FAQ
What is the clamping voltage of P6KE170CHE3/54 and how is it measured?
The clamping voltage (VC) of P6KE170CHE3/54 is 234 V, measured at a peak pulse current (IPPM) of 2.6 A using the standardized 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the maximum voltage seen across the device terminals during surge conduction and is critical for ensuring protected ICs remain below their absolute maximum voltage rating. The P6KE170CHE3/54 achieves this clamping performance while maintaining low dynamic impedance during transient events.
Is P6KE170CHE3/54 suitable for automotive applications?
Yes, P6KE170CHE3/54 is AEC-Q101 qualified (denoted by HE3 suffix) and specifically designed for automotive use, including engine control units, body control modules, and ADAS sensors. Its 175 °C maximum junction temperature, robust DO-204AC package, and validation across temperature cycling, humidity bias, and mechanical shock make it compliant with automotive reliability requirements. The P6KE170CHE3/54 also meets JESD 201 Class 2 whisker resistance, ensuring long-term solder joint integrity in under-hood environments.
How does the HE3 suffix differ from E3 in P6KE170CHE3/54?
The HE3 suffix in P6KE170CHE3/54 indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas E3 denotes RoHS-compliant commercial grade only (JESD 201 Class 1A). HE3 devices undergo additional stress testing including accelerated life testing, temperature cycling, and mechanical shock - all required for automotive production. The P6KE170CHE3/54's HE3 certification confirms suitability for safety-critical vehicle subsystems where field failure is unacceptable.
What is the thermal resistance of P6KE170CHE3/54 and why does it matter?
P6KE170CHE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, meaning each watt of power dissipated raises the junction temperature 20 °C above lead temperature. This parameter is essential for predicting temperature rise during repetitive surge events - especially in enclosed automotive enclosures where ambient temperatures exceed 85 °C. Proper PCB copper pour design around the leads is required to maintain P6KE170CHE3/54 junction temperature below 175 °C during sustained operation.
Can P6KE170CHE3/54 be used in bi-directional configurations?
No, P6KE170CHE3/54 is a uni-directional TVS diode, indicated by the "A" suffix (not "CA"). It conducts only in reverse bias above VWM and blocks forward current up to 5.0 V at 50 A. For bi-directional protection - such as AC line or data bus applications - a CA-suffixed part like P6KE170CA would be required. Using P6KE170CHE3/54 in bi-directional circuits risks forward conduction and unintended current paths; always verify polarity marking (cathode band) during PCB layout for P6KE170CHE3/54.
P6KE170CHE3/54 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:
- 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)
P6KE170CHE3/54 FAQ
1.How can I place an order for P6KE170CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170CHE3/54 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 P6KE170CHE3/54 reliable?
The price and inventory of P6KE170CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170CHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE170CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170CHE3/54?
P6KE170CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170CHE3/54 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 P6KE170CHE3/54?
For technical support, including P6KE170CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170CHE3/54 requirements.
6.How does Aetrix verify that P6KE170CHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE170CHE3/54 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 P6KE170CHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE170CHE3/54?
All P6KE170CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170CHE3/54, 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 P6KE170CHE3/54 part is unused and in its original packaging.
Return procedure for P6KE170CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE170CHE3/54 Tags
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