Taiwan Semiconductor Corporation P6KE220H

Overview

P6KE220H from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 220V nominal breakdown voltage (VBR min/max = 198–242V), 175V standoff voltage (VWM), clamps to ≤344V at 1.8A peak surge current, and uses DO-204AC (DO-15) package for industrial power supply input protection.

For engineers reviewing the P6KE220H datasheet, P6KE220H pinout, P6KE220H application, or P6KE220H equivalent, this AEC-Q101 qualified TVS offers verified clamping performance under 10/1000μs surges, low leakage (<1μA at 175V), and thermal stability up to TJ = 175°C - critical for automotive body electronics, industrial PLC I/O protection, and AC/DC front-end ESD hardening.

Technical Context

The P6KE220H operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its 198–242V breakdown range at 1mA test current. Its low dynamic impedance ensures rapid clamping response (<1.0ps rise time from 0V to VBR) and stable energy dissipation across temperature.

Rated for 600W non-repetitive peak pulse power (10/1000μs waveform), it supports steady-state power dissipation of 5W at 75°C ambient when mounted on 5×5 mm copper pads. Junction temperature range is –55°C to +175°C, with storage matching operational limits.

Key Specifications

Pinout & Package

DO-204AC (DO-15) package: axial-leaded, molded epoxy case meeting UL 94V-0 flammability rating. Cathode indicated by band marking; anode and cathode terminals are non-polarized in layout but functionally asymmetric for unidirectional operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Compared with SMAJ220A and 1.5KE220A, the P6KE220H delivers AEC-Q101 validation in a compact DO-15 footprint with optimized leakage-clamping trade-off - making it the preferred choice for cost-sensitive, space-constrained automotive and industrial DC rail protection where 600W single-pulse immunity suffices.

Availability

P6KE220H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and AC/DC adapter output protection requiring stable component supply and AEC-Q101 compliance.

Supply support for P6KE220H 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 for automotive, industrial, and consumer markets.

The P6KE series targets cost-effective, high-reliability transient suppression in harsh environments - engineered for AEC-Q101 compliance, wide temperature operation, and consistent clamping performance across production lots.

FAQ

What is the key difference between P6KE220H and P6KE220A?

The P6KE220H is AEC-Q101 qualified and rated for automotive-grade reliability, while the P6KE220A is the standard industrial version without automotive qualification. Both share identical electrical specs (VBR = 198–242V, VC = 344V, PPK = 600W), but P6KE220H undergoes additional stress testing per AEC-Q101 including temperature cycling and HTRB. For automotive body electronics, P6KE220H is mandatory; for industrial use, P6KE220A may be selected for cost optimization. The P6KE220H remains the recommended part for any design targeting long-term field reliability in thermally aggressive environments.

Does P6KE220H support bidirectional transient suppression?

No, P6KE220H is a unidirectional TVS diode intended for DC rail protection with defined polarity - cathode must connect to ground or low-side reference. For bidirectional AC or data-line protection, the P6KE220CA variant (with 'CA' suffix) is required. That part uses a dual-die configuration to clamp both polarities symmetrically and has identical VBR (198–242V) and VC (344V) ratings. Using P6KE220H in bidirectional applications risks forward conduction and permanent damage during positive half-cycles. Always verify polarity marking and select CA-suffix parts for AC-coupled or floating signal paths.

What is the maximum surge current P6KE220H can handle in a single event?

The P6KE220H handles up to 1.8A peak surge current (IPP) under the standardized 10/1000μs double-exponential waveform, corresponding to its 600W peak pulse power rating. This value is derived from VC = 344V × IPP = 600W. At elevated ambient temperatures, derating applies: above 25°C, pulse power decreases linearly per Fig.2 in the datasheet, reaching ~400W at 75°C. For repetitive surges, thermal accumulation must be evaluated using the junction-to-ambient thermal resistance (RθJA ≈ 100°C/W for DO-15 on minimal copper) to avoid exceeding TJ(max) = 175°C. The P6KE220H is not rated for repetitive surge duty without active cooling or significant PCB copper area.

How does the clamping voltage of P6KE220H compare to its breakdown voltage?

The P6KE220H has a breakdown voltage (VBR) range of 198–242V at 1mA test current, while its maximum clamping voltage (VC) is 344V at 1.8A surge current - a 42% overhead margin. This differential reflects the diode's dynamic impedance (Z_dynamic ≈ (344V − 220V)/1.8A ≈ 69Ω), which governs voltage rise under surge conditions. Lower Z_dynamic yields tighter clamping; the P6KE220H's value is typical for 600W DO-15 TVS devices. Designers must ensure downstream components tolerate up to 344V transient exposure - e.g., selecting 400V-rated capacitors or 350V-maximum-input regulators. The P6KE220H's VC specification is guaranteed across temperature and lifetime, unlike varistors which degrade after repeated surges.

Is P6KE220H compatible with lead-free reflow or wave soldering processes?

Yes, the P6KE220H uses pure tin-plated leads compliant with J-STD-002 for solderability and meets JEDEC J-STD-020 moisture sensitivity level (MSL) 1 - unlimited floor life at ≤30°C/85% RH. It is qualified for both wave soldering (peak temperature ≤260°C, 10s max) and lead-free reflow (peak 260°C, 20–40s). The DO-204AC package's epoxy molding compound is UL 94V-0 rated and withstands multiple thermal cycles without delamination. No pre-baking is required. For optimal reliability, maintain lead coplanarity and avoid mechanical stress during board handling - the P6KE220H's axial leads are not designed for flexure post-soldering. Traceability markings (date code, factory ID) remain legible after standard process exposure.