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Taiwan Semiconductor Corporation P6KE120CAH
- Part No.:
- P6KE120CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE120CAH.pdf
- Description:
- TVS DIODE 102VWM 165VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,476
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Product details
Overview
P6KE120CAH from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 120V nominal breakdown voltage (VBR min/max = 108–132 V), 600W peak pulse power rating at 10/1000μs, clamping voltage of 173 V at 3.6 A peak surge current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the P6KE120CAH datasheet, P6KE120CAH pinout, P6KE120CAH application, or P6KE120CAH equivalent, this device is selected for robust ESD and lightning-induced transient suppression in 12–48 V DC systems where low clamping ratio, fast response (<5 ns), and stable temperature coefficient (0.107 %/°C) are critical to protect downstream MOSFETs, controllers, and CAN transceivers.
Technical Context
The P6KE120CAH uses a planar junction silicon avalanche structure optimized for bidirectional clamping with symmetrical VBR characteristics in both polarities. Its DO-204AC (DO-15) package supports lead-free reflow soldering and meets JESD201 Class 2 whisker resistance requirements.
It operates across –55°C to +175°C junction temperature range and delivers <1 μA reverse leakage at 97.2 V standoff voltage, enabling low-power system monitoring during normal operation while maintaining rapid turn-on (<5 ns) during transients exceeding VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min–max) | 108–132 V - Ensures reliable conduction onset within tight tolerance across production lots and temperature |
| VWM | 97.2 V - Maximum continuous reverse voltage before leakage exceeds 1 μA; defines safe operating margin below clamping |
| VC @ IPP | 173 V @ 3.6 A - Clamped voltage during 10/1000μs surge; determines maximum stress on protected ICs |
| PPK | 600 W - Peak non-repetitive surge power handling capability per standard IEC 61000-4-5 Level 4 |
| IR @ VWM | <1 μA - Minimal standby current draw; avoids loading sensitive voltage references or sleep-mode circuits |
| TJ max | +175°C - Enables placement near hot components (e.g., power inductors, motor drivers) without derating |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package compatible with legacy through-hole assembly and automated tape-and-reel feeding |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking for unidirectional variants; P6KE120CAH is bidirectional and marked without polarity band. Leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | No polarity dependency - connects inline across protected line and ground (or between differential lines) without orientation concern |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use including thermal cycling, humidity, and mechanical shock per AEC specification |
| Clamping ratio (VC/VBR) | 1.60 (173 V / 108 V) - Low ratio ensures minimal overvoltage exposure to protected circuitry during surge events |
| Response time | <5 ns - Fast enough to suppress EFT bursts (IEC 61000-4-4) and ISO 7637-2 pulse 1/2/5a before IC damage occurs |
| Temperature coefficient of VBR | 0.107 %/°C - Predictable VBR drift enables accurate worst-case clamping margin calculation over full operating range |
| RoHS & halogen-free | Compliant with IEC 61249-2-21 - Supports environmentally regulated industrial and automotive supply chains |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed between power rail and chassis ground to divert surge energy away from PMICs and microcontrollers. Use Value: Withstands 600 W surges and clamps to 173 V, limiting stress on 36 V-rated input stages and preserving system uptime during harsh vehicle operation. |
Use Scenario: Safeguarding 24 V digital input modules in factory automation against induced surges from relay coil switching and motor noise. IC Role / Device Role / Timing Role: Parallel-connected TVS across optocoupler input terminals to absorb repetitive 1 kV/500 A transients without degradation. Use Value: Sub-5 ns response and <1 μA leakage ensure signal integrity during normal operation and immediate clamping during fast-rising EFT events. |
| DC Motor Drive Bus Protection | Smart Lighting Power Stage Protection |
Use Scenario: Shielding H-bridge gate drivers and current sense amplifiers from inductive kickback during PWM commutation. IC Role / Device Role / Timing Role: Mounted directly at motor terminal interface to clamp flyback voltages before propagation into control logic. Use Value: 175°C max junction temperature allows direct mounting near heatsinks; 173 V clamping prevents latch-up in 100 V rated MOSFETs. |
Use Scenario: Securing constant-current LED driver ICs in streetlight systems exposed to lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Placed across bulk capacitor input to clamp line-to-ground transients before rectification and regulation stages. Use Value: 600 W rating handles multi-kV surge events; DO-15 package enables compact layout in space-constrained outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | 400 W rating, SMB surface-mount package, lower VC (170 V), same VBR range | Preferred for space-constrained PCBs; lacks AEC-Q101 qualification | Select when board area is limited and automotive qualification is not required |
| 1.5KE120CA | 1500 W rating, DO-201AD package, higher VC (193 V), wider VBR tolerance (108–132 V same) | Used in higher-energy industrial surge environments; larger footprint and higher clamping voltage | Select when system must survive >1 kV/100 A transients and layout permits larger package |
Compared with SMBJ120CA and 1.5KE120CA, P6KE120CAH offers the optimal balance of AEC-Q101 compliance, 600 W surge capacity, and DO-15 through-hole compatibility-making it ideal for automotive-grade replacements and industrial retrofits requiring proven reliability and legacy assembly support.
Availability
P6KE120CAH is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and DC motor drive bus protection requiring stable component supply and long-term lifecycle assurance.
Supply support for P6KE120CAH 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, serving global automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in harsh-environment power systems-including engine control units, battery management, and factory automation interfaces.
FAQ
What is the clamping voltage of P6KE120CAH and how does it protect downstream components?
The P6KE120CAH has a maximum clamping voltage (VC) of 173 V at 3.6 A peak surge current (10/1000μs waveform). This value defines the highest voltage that will appear across protected circuitry during a surge event. By limiting transient overvoltage to ≤173 V, the P6KE120CAH prevents breakdown or latch-up in downstream components rated for 200 V or higher, such as automotive-grade gate drivers and power management ICs. Its low dynamic impedance ensures consistent clamping performance across temperature and aging.
Is P6KE120CAH suitable for bidirectional signal line protection?
Yes, P6KE120CAH is explicitly designed for bidirectional operation, as indicated by the "CA" suffix and confirmed in the datasheet's "Devices for Bipolar Applications" section. Its symmetrical breakdown voltage (108–132 V in both directions) and absence of polarity marking make it appropriate for protecting differential buses like RS-485 or CAN FD lines where voltage reversals occur. However, its 120 V standoff is best suited for high-voltage power rails-not low-voltage data lines-due to its relatively high VWM.
Does P6KE120CAH meet automotive qualification standards?
Yes, P6KE120CAH is AEC-Q101 qualified, as confirmed in the "FEATURES" section and "ORDERING INFORMATION" (where "H" suffix denotes AEC-Q101 qualification). It has undergone stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life per AEC-Q101 Rev D. This qualification validates its suitability for under-hood automotive applications including body control modules, lighting drivers, and power distribution units.
What is the maximum junction temperature rating for P6KE120CAH and why does it matter?
The P6KE120CAH has a maximum junction temperature (TJ max) of +175°C. This high rating allows the device to operate reliably in thermally demanding environments-such as near power inductors, motor drivers, or engine compartments-without derating its surge capability. Unlike standard TVS diodes rated at +150°C, the +175°C limit ensures stable VBR and clamping performance across full automotive and industrial temperature ranges, reducing thermal runaway risk during repeated surge events.
How does the DO-204AC (DO-15) package of P6KE120CAH impact PCB layout and assembly?
The DO-204AC (DO-15) package of P6KE120CAH features axial leads with 0.400 g mass and standard 5.3 mm body diameter, supporting both manual through-hole soldering and automated tape-and-reel placement. Its robust mechanical construction meets JESD201 Class 2 whisker resistance, and pure tin plating ensures compatibility with lead-free reflow profiles. Layout requires ≥2.5 mm creepage clearance for 120 V systems, and thermal relief pads are recommended to manage heat during surge dissipation without pad lifting.
P6KE120CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- 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)
P6KE120CAH FAQ
1.How can I place an order for P6KE120CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE120CAH 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 P6KE120CAH reliable?
The price and inventory of P6KE120CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE120CAH is usually 5 days.
3.What payment methods are accepted for P6KE120CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE120CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE120CAH?
P6KE120CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE120CAH 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 P6KE120CAH?
For technical support, including P6KE120CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE120CAH requirements.
6.How does Aetrix verify that P6KE120CAH is sourced from the original manufacturer or authorized distributors?
All P6KE120CAH 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 P6KE120CAH meets industry standards.
7.What is the process for return or replacement of P6KE120CAH?
All P6KE120CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE120CAH, 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 P6KE120CAH part is unused and in its original packaging.
Return procedure for P6KE120CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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