My Inquiry
My Account
Taiwan Semiconductor Corporation P6KE300CAH
- Part No.:
- P6KE300CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE300CAH.pdf
- Description:
- TVS DIODE 256VWM 414VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,731
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE300CAH 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 300V nominal standoff voltage, 430V maximum clamping voltage at 1.5A peak surge current, 600W peak pulse power rating (10/1000μs), and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the P6KE300CAH datasheet, P6KE300CAH pinout, P6KE300CAH application, or P6KE300CAH equivalent, this device is selected for robust ESD and lightning-induced transient suppression where bidirectional clamping, low leakage (<1μA at 243V), and stable temperature coefficient (0.110%/°C) are critical in 12V–48V DC systems.
Technical Context
The P6KE300CAH operates as a silicon avalanche diode with symmetrical bidirectional breakdown behavior-identical VBR min/max (270V–330V) and clamping performance in both polarities. Its DO-204AC (DO-15) package supports through-hole mounting and handles non-repetitive 10/1000μs surges up to 600W without degradation when operated within its -55°C to +175°C junction temperature range.
It delivers fast transient response (<5.0ns for bidirectional mode), low dynamic impedance, and maintains <1μA reverse leakage above 243V standoff, enabling reliable protection of downstream DC-DC converters, CAN transceivers, and microcontroller I/O in harsh electromagnetic environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 300 V - defines rated DC operating voltage before clamping onset |
| Breakdown Voltage (VBR) | 270–330 V at 1 mA - ensures consistent avalanche initiation across production lots |
| Standoff Voltage (VWM) | 243 V - maximum continuous reverse voltage without significant leakage |
| Clamping Voltage (VC) | 430 V at 1.5 A peak surge - limits transient voltage seen by protected ICs |
| Peak Pulse Power | 600 W (10/1000μs) - withstands automotive load dump and ISO 7637-2 pulses |
| Junction Temperature | -55°C to +175°C - supports under-hood placement without derating in engine control units |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking for polarity identification. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Reverse-biased terminal in unidirectional mode; symmetric terminal in bidirectional operation | Connects to protected line; forms bidirectional clamping path with Cathode |
| Cathode (Lead 2) | Marked end with band; reverse-biased terminal in unidirectional mode | Provides reference point for clamping; must be tied to system ground or common rail |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR and VC specs in both directions - eliminates polarity dependency in AC-coupled or floating bus protection |
| AEC-Q101 qualification | Validated for automotive Grade 1 (-40°C to +125°C ambient) and extended temperature operation - enables use in powertrain and body control modules |
| Low leakage at VWM | <1 μA at 243 V - prevents parasitic loading on high-impedance sensor inputs or battery-backed circuits |
| Fast response time | <5.0 ns rise-to-clamp - intercepts EFT bursts and ESD events before sensitive logic is damaged |
| UL 94V-0 flammability rating | Molding compound meets flame-retardant safety standard - satisfies automotive interior material requirements |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 24V supply lines in engine control units against ISO 7637-2 pulse 5a (load dump) and pulse 1 (inductive switching). IC Role / Device Role / Timing Role: Bidirectional TVS clamps transient overvoltage to ≤430V while diverting up to 1.5A surge current away from DC-DC regulators and MCU power pins. Use Value: Prevents latch-up or permanent damage to 3.3V/5V logic supplies during repeated load dump events in vehicles meeting AEC-Q100 stress profiles. | Use Scenario: Shielding analog input channels of programmable logic controllers from field-wiring induced surges and EFT noise in factory automation. IC Role / Device Role / Timing Role: Placed at terminal block entry to clamp ±2kV ESD (IEC 61000-4-2) and ±1kV EFT (IEC 61000-4-4) transients before signal conditioning circuitry. Use Value: Maintains measurement integrity by limiting transient overshoot to <430V, ensuring ADC reference stability and preventing op-amp saturation or reset. |
| Telecom Power Interface | Renewable Energy Inverter DC Link |
Use Scenario: Safeguarding PoE-powered Ethernet switches and base station power feeds against lightning-induced surges on 48V DC distribution lines. IC Role / Device Role / Timing Role: Front-end TVS on primary DC input, operating bidirectionally to absorb differential-mode transients from coupled AC mains or antenna cables. Use Value: Enables compliance with ITU-T K.20 and Telcordia GR-1089-CORE immunity requirements without adding series impedance or affecting steady-state efficiency. | Use Scenario: Protecting DC link capacitors and gate drivers in solar inverters exposed to grid-switching transients and stray lightning coupling. IC Role / Device Role / Timing Role: Mounted across DC+ and DC− bus near MPPT controller to clamp voltage spikes exceeding 400V during rapid PV string disconnection or grid fault recovery. Use Value: Extends capacitor lifetime by limiting overvoltage stress to 430V peak, reducing dielectric wear and avoiding premature failure in high-temperature 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 |
|---|---|---|---|
| SMBJ300CA | Same 300V VWM, but 600W rating in SMB package; lower thermal mass and higher IPP (1.6A) | Suitable for surface-mount designs with space constraints; less robust for through-hole mechanical shock environments | Select SMBJ300CA only if PCB layout allows SMD placement and thermal relief pads support 175°C TJ |
| 1.5KE300CA | Same DO-15 package and 300V rating, but 1500W rating (10/1000μs); larger junction area and higher IPP (5.0A) | Used where higher surge margin is required (e.g., utility meter front-end); not AEC-Q101 qualified | Choose 1.5KE300CA for non-automotive industrial applications needing >600W headroom, but verify mechanical fit and qualification needs |
Compared with SMBJ300CA and 1.5KE300CA, the P6KE300CAH offers AEC-Q101 validation and optimized thermal performance in axial-leaded form factor-making it the preferred choice for automotive-grade through-hole surge protection where qualification and mechanical reliability outweigh raw power rating.
Availability
P6KE300CAH is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power interfaces, and renewable energy inverters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE300CAH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101-compliant production lines.
The P6KE Series targets high-reliability transient suppression in automotive and industrial settings, emphasizing robustness, standardized packaging (DO-15), and qualification-aligned testing for mission-critical power rail protection.
FAQ
What does the 'CA' suffix indicate in P6KE300CAH?
The 'CA' suffix in P6KE300CAH denotes bidirectional configuration - meaning the device provides symmetrical clamping for both positive and negative transients across its terminals. This distinguishes it from unidirectional variants (e.g., P6KE300A), which require correct anode/cathode orientation. The P6KE300CAH is functionally identical to P6KE300C but adds AEC-Q101 qualification indicated by the 'H' suffix.
Is P6KE300CAH compatible with lead-free reflow soldering processes?
No - the P6KE300CAH uses axial leads with pure tin plating and is designed for wave soldering or hand-soldering, not lead-free reflow. Its DO-204AC (DO-15) package lacks thermal mass tolerance for typical 260°C peak reflow profiles. For SMT alternatives, consider SMBJ300CA or SMCJ300CA, but note these lack AEC-Q101 qualification unless explicitly marked.
What is the maximum allowable surge current for P6KE300CAH at 85°C ambient?
At 85°C ambient, the P6KE300CAH's peak pulse current (IPP) is derated to approximately 1.25A - calculated using the pulse derating curve (Fig.2) where 600W power rating drops to ~470W at 85°C. This corresponds to a clamping voltage of ~430V, maintaining safe operation for repetitive transients in engine bay environments.
Does P6KE300CAH meet IEC 61000-4-5 surge immunity requirements?
Yes - the P6KE300CAH's 600W rating at 10/1000μs waveform directly supports Level 3 (2kV line-earth, 1kV line-line) and Level 4 (4kV line-earth, 2kV line-line) compliance when used with appropriate series impedance (e.g., 2Ω resistor) in the protection network. Its 430V clamping ensures downstream components see voltages within safe operating limits per IEC 61000-4-5 test criteria.
Can P6KE300CAH be used in parallel for higher surge handling?
No - paralleling P6KE300CAH devices is not recommended due to mismatch in dynamic impedance and avalanche turn-on characteristics, which causes uneven current sharing and potential single-device failure. For higher surge capacity, select a single higher-rated device such as 1.5KE300CA or use coordinated staged protection (e.g., gas discharge tube + P6KE300CAH).
P6KE300CAH 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):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 1.5A
- 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)
P6KE300CAH FAQ
1.How can I place an order for P6KE300CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE300CAH 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 P6KE300CAH reliable?
The price and inventory of P6KE300CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE300CAH is usually 5 days.
3.What payment methods are accepted for P6KE300CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE300CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE300CAH?
P6KE300CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE300CAH 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 P6KE300CAH?
For technical support, including P6KE300CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE300CAH requirements.
6.How does Aetrix verify that P6KE300CAH is sourced from the original manufacturer or authorized distributors?
All P6KE300CAH 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 P6KE300CAH meets industry standards.
7.What is the process for return or replacement of P6KE300CAH?
All P6KE300CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE300CAH, 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 P6KE300CAH part is unused and in its original packaging.
Return procedure for P6KE300CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE300CAH 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…
