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Taiwan Semiconductor Corporation P6KE170CA
- Part No.:
- P6KE170CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170CA.pdf
- Description:
- TVS DIODE 145VWM 234VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
P6KE170CA from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a standoff voltage of 138 V, breakdown voltage range of 153–187 V at 1 mA test current, clamping voltage of 244 V at 2.5 A peak pulse current, and ultra-fast response time (<5 ns), making it suitable for protecting automotive ECUs, industrial I/O ports, and telecom interface circuits against EFT and lightning-induced transients.
For engineers reviewing the P6KE170CA datasheet, P6KE170CA pinout, P6KE170CA application, or P6KE170CA equivalent, key selection criteria include its DO-204AC (DO-15) package compatibility, bidirectional clamping symmetry, 175°C maximum junction temperature, and AEC-Q101 qualification status - critical for under-hood automotive designs requiring robust ESD/EMI immunity.
Technical Context
The P6KE170CA operates as a silicon avalanche diode with symmetrical bidirectional breakdown behavior, enabling identical clamping performance in both polarities without external polarity management. Its low dynamic impedance and sub-5 ns response ensure effective suppression of fast-rising transients such as IEC 61000-4-4 EFT bursts and ISO 7637-2 load-dump spikes.
Thermal design is supported by a 175°C maximum junction temperature and derating curves that define safe peak pulse power limits across ambient temperatures up to 125°C. The device meets UL 94V-0 flammability requirements and is halogen-free per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000μs) | 600 W - sustains single high-energy surges typical of automotive load dump or lightning-induced coupling |
| Standoff Voltage (VWM) | 138 V - maximum continuous DC or RMS voltage before significant leakage; sets operating margin below breakdown |
| Breakdown Voltage (VBR) | 153–187 V at 1 mA - defines the onset of avalanche conduction; tight tolerance supports predictable clamping threshold |
| Clamping Voltage (VC) | 244 V at 2.5 A IPP - maximum voltage seen by protected circuit during rated surge; determines system overvoltage stress level |
| Junction Temperature Range | −55°C to +175°C - enables deployment in under-hood automotive, industrial motor drives, and outdoor power electronics |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded through-hole package with tin-plated leads compliant to J-STD-002 |
| AEC-Q101 Qualified | Yes (H-suffix variant) - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case meeting UL 94V-0; cathode band not marked on bidirectional P6KE170CA - terminals are non-polarized and electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Either terminal serves as input/output; bidirectional operation eliminates orientation constraints during PCB placement |
| Leads (Tin-plated) | PCB interconnect & thermal path | Solderable per J-STD-002; 0.375" lead length supports 5 W steady-state dissipation when mounted on 5×5 mm copper pads |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR min/max (153–187 V) and VC (244 V) in both directions - simplifies protection design for AC-coupled or floating interfaces |
| Fast transient response | <5 ns response time - captures sub-microsecond EFT events before downstream ICs experience latch-up or gate oxide damage |
| Low leakage at operating voltage | <1 μA @ 138 V - avoids measurable power loss or bias shift in high-impedance sensor or reference circuits |
| High surge current capability | 2.5 A peak pulse current (IPP) at 10/1000μs - withstands repeated industrial surge events per IEC 61000-4-5 Level 3 (1 kV/2 Ω) |
| Automotive-grade reliability | AEC-Q101 qualified (P6KE170CA-H variant) - includes HTGB, TC, and UHAST validation for 15-year vehicle service life |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from battery line transients during load dump and jump-start conditions. IC Role / Device Role: Primary overvoltage clamp on 12 V supply rail and bidirectional signal lines. Use Value: Limits rail voltage to ≤244 V during 100 V/50 ms load dump event, preventing MCU reset or regulator failure without adding series impedance. |
Use Scenario: Safeguarding 24 V DC digital input channels from field-wiring induced surges and inductive kickback from solenoid valves. IC Role / Device Role: Front-end TVS on optocoupler input side, placed before current-limiting resistor. Use Value: Clamps 1 kV/2 Ω surge to 244 V within 5 ns, ensuring optocoupler CTR remains stable and input logic state is preserved. |
| Telecom Remote Radio Unit (RRU) | Smart Meter Power Supply Input |
Use Scenario: Shielding RS-485 communication ports on outdoor base station equipment exposed to lightning-induced ground potential rise. IC Role / Device Role: Bidirectional differential-mode protector between A/B lines and local ground. Use Value: Symmetric clamping maintains common-mode rejection while limiting differential overvoltage to <250 V, preserving transceiver integrity. |
Use Scenario: Suppressing surges entering via AC-DC adapter input during grid switching transients in utility meter installations. IC Role / Device Role: Secondary-stage TVS after MOV, providing precise clamping and low capacitance for EMC compliance. Use Value: 244 V clamping voltage ensures downstream rectifier and controller ICs operate within absolute maximum ratings during 6 kV ring wave tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ170CA | Same DO-214AC (SMA) package; 200 W rating; lower clamping voltage (231 V @ 2.6 A); higher leakage (5 μA @ 138 V) | Preferred for space-constrained SMT layouts; less suitable for high-temperature environments due to lower TJ max (150°C) | Select when board area is limited and surge energy is ≤200 W; verify thermal relief for sustained 125°C ambient |
| ON Semiconductor 1.5KE170CA | Same DO-201AD (DO-27) package; 1500 W rating; higher clamping voltage (274 V @ 5.5 A); wider VBR tolerance (153–198 V) | Better for high-energy lightning protection; requires larger PCB footprint and higher layout inductance margin | Choose for legacy DO-27-compatible designs needing higher surge margin; confirm clamping headroom vs. protected IC VDS(max) |
Compared with P6KE170CA, SMAJ170CA trades surge capacity for compact SMT packaging and tighter thermal profile, while 1.5KE170CA delivers higher energy handling at the cost of larger size and looser voltage control - making P6KE170CA the optimal balance of axial-mount compatibility, 600 W capability, and precision clamping for mid-tier automotive and industrial systems.
Availability
P6KE170CA is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom infrastructure requiring stable component supply with AEC-Q101 traceability and long-term lifecycle support.
Supply support for P6KE170CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and interface devices since 1979.
The P6KE Series belongs to TSC's high-reliability TVS portfolio engineered specifically for automotive and industrial surge immunity - emphasizing AEC-Q101 qualification, wide temperature operation, and consistent parametric stability across production lots.
FAQ
What is the key difference between P6KE170CA and P6KE170A?
The P6KE170CA is a bidirectional TVS diode, meaning it clamps voltage transients equally in both polarities - ideal for AC lines or floating signal paths. In contrast, P6KE170A is unidirectional and includes a cathode band for polarity-sensitive DC applications. The "C" suffix explicitly denotes bidirectional configuration, and the "A" denotes tighter VBR tolerance (±5% vs. ±10% for non-A variants). Both share identical P6KE170CA electrical ratings except for polarity behavior and leakage characteristics.
Is P6KE170CA RoHS and halogen-free compliant?
Yes, P6KE170CA complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. This compliance is verified in TSC's material declarations and applies to all standard production lots of P6KE170CA.
What is the maximum clamping voltage of P6KE170CA under surge conditions?
The maximum clamping voltage (VC) of P6KE170CA is 244 V when subjected to a 10/1000 μs waveform with a peak pulse current (IPP) of 2.5 A. This value is measured at TA = 25°C and represents the upper limit of voltage imposed on the protected circuit during standardized surge testing - a critical parameter for ensuring downstream ICs remain within their absolute maximum voltage ratings.
Does P6KE170CA require heatsinking for continuous operation?
No, P6KE170CA is designed for transient-only duty and does not require heatsinking during normal operation. Its steady-state power dissipation rating is 5 W at TA = 75°C with 0.375" lead lengths on 5×5 mm copper pads. For repetitive surge events, thermal derating per Figure 2 in the datasheet must be applied - but no additional heatsink is specified or recommended for standard use cases.
Can P6KE170CA be used in place of P6KE150CA for higher-voltage rail protection?
No - substituting P6KE170CA for P6KE150CA reduces the safety margin between operating voltage and breakdown threshold. P6KE150CA has a VWM of 121 V and VBR of 135–165 V, while P6KE170CA raises VWM to 138 V and VBR to 153–187 V. Using the higher-voltage variant on a 13.5 V system risks insufficient clamping during low-level transients; always match VWM to the nominal rail voltage with ≥20% margin.
P6KE170CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE170CA FAQ
1.How can I place an order for P6KE170CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170CA 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 P6KE170CA reliable?
The price and inventory of P6KE170CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170CA is usually 5 days.
3.What payment methods are accepted for P6KE170CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170CA?
P6KE170CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170CA 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 P6KE170CA?
For technical support, including P6KE170CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170CA requirements.
6.How does Aetrix verify that P6KE170CA is sourced from the original manufacturer or authorized distributors?
All P6KE170CA 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 P6KE170CA meets industry standards.
7.What is the process for return or replacement of P6KE170CA?
All P6KE170CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170CA, 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 P6KE170CA part is unused and in its original packaging.
Return procedure for P6KE170CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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