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Taiwan Semiconductor Corporation P6KE39CA
- Part No.:
- P6KE39CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE39CA.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:8,544
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Product details
Overview
P6KE39CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for robust ESD and surge protection in power rails and signal lines. It features a 39V nominal breakdown voltage (VBR min/max: 35.1V–42.9V), 600W peak pulse power rating at 10/1000μs, clamping voltage of 56.4V at 11.1A peak surge current, and operates across –55°C to +175°C junction temperature. It is used in automotive lighting control modules to protect CAN transceiver inputs against load-dump-induced transients.
For engineers reviewing the P6KE39CA datasheet, P6KE39CA pinout, P6KE39CA application, or P6KE39CA equivalent, key selection criteria include bidirectional clamping capability, DO-15 package compatibility with high-reliability PCB layouts, AEC-Q101 qualification status, and verified 56.4V clamping performance under 10/1000μs surge conditions.
Technical Context
The P6KE39CA employs a planar passivated silicon junction optimized for fast transient response (<5.0ns for bidirectional operation) and low dynamic impedance. Its symmetrical avalanche structure enables identical electrical behavior in both polarities, supporting bipolar signal line protection without polarity-sensitive routing.
It complies with ANSI/IEEE C62.35 for transient suppression and meets UL 94V-0 flammability requirements in its DO-204AC (DO-15) molded package. The device is rated for non-repetitive 600W surges and maintains stable VBR temperature coefficient of 0.100%/°C across its operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 39 V - defines primary clamping threshold for bidirectional surge events |
| Breakdown Voltage (VBR) | 35.1 V min to 42.9 V max at 1 mA - ensures reliable avalanche initiation before system damage |
| Stand-off Voltage (VWM) | 31.6 V - maximum continuous reverse working voltage without significant leakage |
| Clamping Voltage (VC) | 56.4 V at 11.1 A IPP - limits downstream voltage during worst-case 10/1000μs surge |
| Peak Pulse Power (PPK) | 600 W - sustains single high-energy transients per IEC 61000-4-5 Level 4 |
| Junction Temperature Range | –55°C to +175°C - supports under-hood automotive and industrial ambient conditions |
| Leakage Current (ID) | <1 μA at 31.6 V - minimizes standby power loss in always-on circuits |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for unidirectional variants; P6KE39CA is bidirectional and marked with part-specific code (e.g., "39C") - no polarity indicator required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | Interchangeable connection points - either lead may serve as input or return path in AC-coupled or floating systems |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock per JESD22 |
| 600W surge rating (10/1000μs) | Withstands IEC 61000-4-5 combination wave surges up to 4kV open-circuit / 2kA short-circuit |
| Fast response time | <5.0 ns turn-on for bidirectional transients - critical for protecting high-speed interfaces |
| Low clamping ratio (VC/VBR) | 1.59 typical - tight margin between trigger and clamp ensures minimal overvoltage stress on protected ICs |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU - suitable for green manufacturing programs |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontroller GPIOs in headlamp modules exposed to load dump and jump-start transients. IC Role / Device Role: Bidirectional TVS placed across VCC–GND and signal lines (e.g., PWM dimming input) to clamp ±100V spikes. Use Value: Limits voltage to ≤56.4V during 600W surges, preventing latch-up or gate oxide rupture in 3.3V/5V logic devices. |
Use Scenario: Safeguarding 24V digital input channels in programmable logic controllers subjected to inductive kickback from solenoid coils. IC Role / Device Role: Primary surge shunt on field-side terminals, upstream of optocoupler input stages. Use Value: Absorbs 11.1A peak current at 56.4V clamping, enabling use of lower-cost isolation components without derating. |
| USB-C Port ESD Protection | Smart Meter Communication Lines |
Use Scenario: Secondary-level ESD protection on USB-C CC and VCONN lines where primary protection resides at connector. IC Role / Device Role: Bidirectional clamping element placed after common-mode choke to suppress differential-mode ESD events. Use Value: Sub-5ns response captures fast 8kV HBM discharges before reaching USB PD controller, with <1μA leakage preserving bus idle state. |
Use Scenario: Protecting RS-485 transceivers in utility smart meters installed in electrically noisy substations. IC Role / Device Role: Line-to-line and line-to-ground TVS on differential bus pairs (A/B) and supply rail. Use Value: 600W rating handles repetitive surges from nearby lightning strikes; DO-15 footprint allows manual rework in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ39CA (Bourns) | Same 39V VBR range and 600W rating, but SMB package (surface-mount); 5.0V lower VC (51.4V @ 11.8A) | Requires PCB redesign for SMT layout; better thermal dissipation in high-density boards | Select when automated assembly and space constraints favor SMT over through-hole |
| 1.5KE39CA (ON Semiconductor) | Identical DO-15 package and 39V rating, but 1500W peak power; higher clamping voltage (60.0V @ 25A) | Over-specified for most 600W-use cases; larger junction capacitance (150pF vs. ~100pF) | Select only when legacy 1.5KE footprint compatibility is mandatory and higher surge margin is required |
Compared with SMBJ39CA and 1.5KE39CA, the P6KE39CA offers optimal balance of through-hole manufacturability, AEC-Q101 qualification, and precise 56.4V clamping-making it preferred for cost-sensitive automotive and industrial designs where DO-15 reliability and qualification are prioritized over raw power headroom or SMT density.
Availability
P6KE39CA is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, USB-C port ESD hardening, and smart meter communication line safeguarding requiring stable component supply across extended product lifecycles.
Supply support for P6KE39CA 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 high-reliability protection devices and power management ICs.
The P6KE series was developed specifically for AEC-Q101-compliant transient suppression in automotive power distribution and industrial control systems, emphasizing robustness, consistency, and long-term parametric stability.
FAQ
What is the clamping voltage of the P6KE39CA under standard test conditions?
The P6KE39CA has a maximum clamping voltage (VC) of 56.4 V at 11.1 A peak pulse current (IPP), measured using the 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events. The P6KE39CA maintains this clamping performance consistently due to its low dynamic impedance and symmetrical bidirectional structure.
Is the P6KE39CA AEC-Q101 qualified?
Yes, the P6KE39CA is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's official documentation and ordering code suffix "H" (P6KE39CAH). This qualification covers stress tests including temperature cycling, highly accelerated stress testing (HAST), and mechanical shock, validating its suitability for automotive under-hood and body-control applications. The P6KE39CA meets all requirements for failure rate, defect screening, and parametric stability defined in the AEC-Q101 standard.
How does the P6KE39CA differ from the unidirectional P6KE39A?
The P6KE39CA is bidirectional, meaning it provides symmetrical clamping in both forward and reverse directions, while the P6KE39A is unidirectional and requires correct anode/cathode orientation. The P6KE39CA has identical VBR (35.1–42.9 V), VWM (31.6 V), and VC (56.4 V) specifications but supports AC-coupled or floating signal paths without polarity concerns. Its marking omits cathode banding, distinguishing it physically and functionally from the P6KE39A.
What is the maximum steady-state power dissipation for the P6KE39CA at 75°C ambient?
The P6KE39CA has a steady-state power dissipation (PD) rating of 5 W at TA = 75°C with lead lengths of 9.5 mm (0.375 inch), as specified in its Absolute Maximum Ratings table. This value assumes mounting on 5 × 5 mm copper pads per terminal and reflects safe continuous operation without thermal runaway. Derating applies above 75°C per the published pulse derating curve (Fig.2), and the device's 175°C maximum junction temperature enables operation in high-ambient environments when properly heatsinked.
Can the P6KE39CA be used in place of the 1.5KE39CA?
The P6KE39CA and 1.5KE39CA share the same DO-15 package, 39V nominal voltage, and bidirectional configuration, but they are not direct replacements due to differing surge ratings: the 1.5KE39CA is rated for 1500W versus 600W for the P6KE39CA. Substituting the P6KE39CA in a 1.5KE39CA design risks inadequate energy absorption during high-energy transients. The P6KE39CA is appropriate where 600W compliance suffices and AEC-Q101 qualification is required-both must be verified against system-level surge test requirements before interchange.
P6KE39CA 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 11.2A
- 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
P6KE39CA FAQ
1.How can I place an order for P6KE39CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE39CA 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 P6KE39CA reliable?
The price and inventory of P6KE39CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE39CA is usually 5 days.
3.What payment methods are accepted for P6KE39CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE39CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE39CA?
P6KE39CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE39CA 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 P6KE39CA?
For technical support, including P6KE39CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE39CA requirements.
6.How does Aetrix verify that P6KE39CA is sourced from the original manufacturer or authorized distributors?
All P6KE39CA 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 P6KE39CA meets industry standards.
7.What is the process for return or replacement of P6KE39CA?
All P6KE39CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE39CA, 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 P6KE39CA part is unused and in its original packaging.
Return procedure for P6KE39CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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