My Inquiry
My Account
Taiwan Semiconductor Corporation P6KE170CAH
- Part No.:
- P6KE170CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170CAH.pdf
- Description:
- TVS DIODE 145VWM 234VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,498
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE170CAH from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. 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 operates across –55°C to +175°C junction temperature. It protects DC bus lines in motor drives and battery management systems against ISO 7637-2 pulses.
For engineers reviewing the P6KE170CAH datasheet, P6KE170CAH pinout, P6KE170CAH application, or P6KE170CAH equivalent, key selection criteria include bidirectional clamping performance under 10/1000 µs surges, AEC-Q101 qualification status, DO-15 package thermal derating behavior, and leakage current <1 µA above 138 V.
Technical Context
The P6KE170CAH implements a silicon avalanche diode structure optimized for fast transient response (<5 ns rise time for bidirectional operation) and low dynamic impedance to maintain tight clamping during high-current transients. Its unidirectional counterpart uses cathode band marking; the CA suffix confirms symmetrical bidirectional conduction with identical electrical characteristics in both polarities.
It complies with ANSI/IEEE C62.35 for surge testing methodology and is rated for non-repetitive 600 W peak pulse power at 10/1000 µs waveform. Thermal performance is defined with 5 × 5 mm copper pads per lead and derates linearly above 25°C ambient per published curve (Fig.2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 138 V - Maximum continuous reverse operating voltage before significant leakage begins |
| VBR (min/max) | 153 V / 187 V at 1 mA - Ensures reliable avalanche initiation within specified tolerance band |
| VC @ IPPM | 244 V at 2.5 A - Clamped voltage during worst-case 10/1000 µs surge; defines protected circuit voltage ceiling |
| PPK | 600 W - Peak pulse power handling capability under standardized surge waveform |
| IR @ VWM | <1 µA - Minimal standby leakage ensures negligible power loss in always-on systems |
| TJ max | +175°C - Enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package with 0.400 g mass and UL 94V-0 molding compound |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical glass-passivated body, cathode band not applicable (bidirectional device). Leads are pure tin plated, solderable per J-STD-002, and pass JESD201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (positive polarity) | Accepts transient energy when voltage exceeds VBR in positive direction; symmetric with cathode |
| Cathode | Surge current entry (negative polarity) | Accepts transient energy when voltage exceeds VBR in negative direction; functionally identical to anode due to bidirectional design |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test plan |
| 600 W surge rating (10/1000 µs) | Withstands high-energy load dump and inductive switching events without degradation |
| Clamping voltage ≤244 V | Limits downstream IC stress to safe levels during ISO 7637-2 Pulse 5a/b transients |
| Leakage <1 µA @ 138 V | Enables use in low-power always-on circuits without compromising battery life or signal integrity |
| UL Recognized #E-326243 | Meets safety requirements for end-equipment certification in North America |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle electronics against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across main power input to absorb >600 W surge energy. Use Value: Prevents latch-up or destruction of MCU, CAN transceivers, and sensor front-ends during engine cranking or alternator field collapse. | Use Scenario: Safeguarding IGBT gate drivers and current sense amplifiers on 300–400 V DC bus in variable frequency drives. IC Role / Device Role / Timing Role: Primary overvoltage clamp parallel to bulk capacitor, triggered by inductive kickback during IGBT turn-off. Use Value: Limits voltage overshoot to ≤244 V, avoiding gate oxide rupture and maintaining safe SOA margins for power semiconductors. |
| Battery Management System (BMS) Input Stage | Smart Lighting ESD Protection |
Use Scenario: Guarding lithium-ion battery pack inputs against hot-plug spikes and external ESD events. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of fuse, current monitor, and protection IC. Use Value: Blocks >2.5 A peak surges while adding <1 µA leakage-critical for long-term battery standby life. | Use Scenario: Shielding LED driver ICs and DALI/0–10 V interface circuitry from electrostatic discharge in outdoor luminaires. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on control/data lines and DC input rails. Use Value: Provides sub-5 ns response to human-body-model (HBM) ESD without distorting PWM dimming signals or analog control voltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170CA | Same 170 V nominal, 600 W rating, but SMB package (surface-mount); lower thermal resistance than DO-15 | Preferred for automated SMT assembly; requires PCB layout change and lacks axial lead mechanical robustness | Select SMBJ170CA when board space is constrained and reflow compatibility is required. |
| 1.5KE170CA | Same voltage and bidirectional function, but 1500 W rating and DO-201 package; higher clamping voltage (258 V) | Used where higher surge margin is needed (e.g., heavy-duty industrial mains input), but less precise clamping | Choose 1.5KE170CA only if system-level testing confirms 258 V clamping is acceptable. |
Compared with SMBJ170CA and 1.5KE170CA, the P6KE170CAH offers AEC-Q101 qualification and DO-15 mechanical ruggedness ideal for automotive harness connections, while balancing clamping precision, leakage, and cost for mid-tier surge immunity requirements.
Availability
P6KE170CAH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial motor drive DC bus safeguarding, and battery management system input stage designs requiring stable component supply and long-lifecycle support.
Supply support for P6KE170CAH 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 robust transient immunity in harsh-environment power interfaces-including engine control units, ADAS modules, and industrial PLC I/O stages.
FAQ
What does the 'CA' suffix mean in P6KE170CAH?
The 'CA' suffix in P6KE170CAH denotes a bidirectional configuration-meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6KE170A), the P6KE170CAH has no polarity marking and functions identically in either direction, making it suitable for AC-coupled or floating DC applications where polarity reversal may occur.
Is P6KE170CAH AEC-Q101 qualified?
Yes, P6KE170CAH is explicitly AEC-Q101 qualified, as confirmed in the ordering information section (Note 2: "H" means AEC-Q101 qualified, excluding low-voltage variants). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, validating its suitability for automotive under-hood and chassis-mounted applications.
What is the maximum clamping voltage of P6KE170CAH under surge conditions?
The maximum clamping voltage of P6KE170CAH is 244 V at a peak pulse current (IPPM) of 2.5 A, measured using the standard 10/1000 µs double-exponential waveform. This value represents the upper limit of voltage seen by downstream circuitry during a worst-case transient event and is critical for ensuring protected components remain within their absolute maximum ratings.
How does P6KE170CAH differ from P6KE170A?
P6KE170CAH is bidirectional and AEC-Q101 qualified, whereas P6KE170A is unidirectional and not AEC-Q101 rated. The 'CA' version has symmetrical breakdown and clamping in both directions, no cathode band, and is intended for applications like differential bus protection. The 'A' variant requires correct polarity orientation and is typically used in DC supply rail clamping where polarity is fixed.
What is the thermal derating behavior of P6KE170CAH above 25°C ambient?
P6KE170CAH follows a linear derating curve for peak pulse power above 25°C ambient, as shown in Figure 2 of the datasheet. At 75°C ambient, its 600 W surge rating reduces to approximately 450 W; at 125°C, it drops to ~270 W. Derating is based on junction temperature limits (TJ max = 175°C) and assumes mounting on 5 × 5 mm copper pads per lead-actual PCB layout significantly affects real-world thermal performance.
P6KE170CAH 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):
- 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:
- -
- 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)
P6KE170CAH FAQ
1.How can I place an order for P6KE170CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170CAH 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 P6KE170CAH reliable?
The price and inventory of P6KE170CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170CAH is usually 5 days.
3.What payment methods are accepted for P6KE170CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170CAH?
P6KE170CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170CAH 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 P6KE170CAH?
For technical support, including P6KE170CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170CAH requirements.
6.How does Aetrix verify that P6KE170CAH is sourced from the original manufacturer or authorized distributors?
All P6KE170CAH 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 P6KE170CAH meets industry standards.
7.What is the process for return or replacement of P6KE170CAH?
All P6KE170CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170CAH, 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 P6KE170CAH part is unused and in its original packaging.
Return procedure for P6KE170CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE170CAH Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
