My Inquiry
My Account
Diodes Incorporated P6KE20CA-T
- Part No.:
- P6KE20CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE20CA-T.pdf
- Description:
- TVS DIODE 17.1VWM 27.7VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:6,846
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE20CA-T from Diodes Incorporated is a bidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 17.1V reverse standoff voltage (VRWM), 19.0V minimum breakdown voltage (VBR), 27.7V maximum clamping voltage (VC) at 22A peak pulse current, and DO-15 package with glass-passivated junction - used in automotive body control modules to absorb ISO 7637-2 load dump transients.
For engineers reviewing the P6KE20CA-T datasheet, P6KE20CA-T pinout, P6KE20CA-T application, or P6KE20CA-T equivalent, this page delivers verified electrical specs, clamping behavior under 1.0ms 8/20μs surge, bidirectional polarity configuration, thermal derating curves, and direct substitution guidance against active-replacement TVS diodes meeting AEC-Q101 stress requirements.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling single-device protection of AC-coupled or floating interfaces without polarity dependency. Its glass-passivated die ensures stable VBR tolerance (±5%) and low leakage (<5μA at VRWM) over -55°C to +175°C operating range.
The device responds within <1.0ns to ESD and lightning-induced surges, clamping voltages to ≤27.7V at IPP = 22A (1.0ms pulse), while maintaining steady-state power dissipation of 5.0W at TL = +75°C on 40mm² copper land - critical for under-hood automotive PCB layouts with constrained thermal mass.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W (1.0ms non-repetitive 10/1000μs waveform; defines maximum transient energy absorption capability) |
| Reverse Standoff Voltage (VRWM) | 17.1V (maximum continuous DC or RMS voltage before significant leakage; sets operating rail margin) |
| Breakdown Voltage (VBR) | 19.0V min / 21.0V max @ 1.0mA (voltage at which device enters avalanche conduction; determines turn-on threshold precision) |
| Clamping Voltage (VC) | 27.7V max @ 22A IPP (voltage seen by protected circuit during surge; directly limits IC stress level) |
| Peak Pulse Current (IPP) | 22.0A (maximum surge current supported at rated VC; validates compliance with IEC 61000-4-5 Level 4) |
| Junction-to-Ambient RθJA | 75°C/W (thermal resistance defining temperature rise per watt in standard JEDEC layout; guides heatsinking needs) |
| Operating Temperature | -55°C to +175°C (full automotive-grade range supporting engine bay and transmission control unit deployment) |
Pinout & Package
Package: DO-15 molded plastic case (UL 94V-0 rated), 0.4g weight, 9.5mm lead length, with axial leads and no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient current entry point (negative polarity surge) | Conducts during negative excursions; forms symmetrical clamping path with Cathode |
| Cathode (Lead 2) | Transient current entry point (positive polarity surge) | Conducts during positive excursions; completes bidirectional avalanche path with Anode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Enables single-device protection of AC signals or ungrounded buses without external polarity management |
| Glass-passivated junction | Ensures ±5% VBR tolerance and <5μA IR at VRWM across full temperature range and lifetime |
| 600W peak pulse rating | Supports IEC 61000-4-5 4kV/2Ω surge testing and ISO 7637-2 Test Pulse 1/2/5a in automotive ECUs |
| DO-15 mechanical robustness | Withstands 100A IFSM (8.3ms half-sine) and meets J-STD-020 moisture sensitivity Level 1 for reflow compatibility |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protects 12V supply inputs in BCMs exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDOs and microcontrollers. Use Value: Limits rail voltage to ≤27.7V during 100V/100ms transients, preventing brownout reset or gate oxide damage in downstream ICs. |
Use Scenario: Shields 24V digital input channels from field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient suppressor before optocoupler or Schmitt-trigger input stage. Use Value: Clamps fast-rising spikes (<1ns) to safe levels before they propagate into isolation barriers or logic gates. |
| Telecom Remote Radio Unit (RRU) | Medical Infusion Pump Motor Driver |
Use Scenario: Guards RS-485 data lines and auxiliary 48V bias rails in outdoor base station RRUs subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional line protector on differential bus with common-mode transient rejection. Use Value: Maintains signal integrity by clamping common-mode transients to <30V while preserving >100pF low capacitance at 0V bias. |
Use Scenario: Safeguards H-bridge gate drivers and current-sense amplifiers in battery-powered infusion pumps during ESD events. IC Role / Device Role / Timing Role: Secondary-level TVS on motor supply rail and analog sensor paths. Use Value: Prevents latch-up in op-amps and MOSFET drivers during 8kV contact discharge (IEC 61000-4-2) via sub-1ns response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | Same VRWM (17.1V) and VC (27.7V), but SMB package (smaller footprint, higher RθJA = 110°C/W) | Better suited for space-constrained PCBs where thermal mass is limited; requires tighter layout for thermal relief | Select when board area is critical and peak surge duty is infrequent; verify thermal performance at TL > +60°C |
| 1.5KE20CA | Higher PPK (1500W), same DO-15 package, but larger die size increases junction capacitance (≈250pF vs. 120pF) | Preferred for high-energy lightning surges (IEC 61000-4-5 Level 5); less suitable for high-speed data lines due to capacitance | Choose for heavy industrial environments with frequent high-amplitude transients; avoid in >1MHz signal paths |
Compared with P6KE20CA-T, SMBJ20CA trades thermal robustness for compactness, while 1.5KE20CA delivers higher surge capacity at the cost of increased capacitance - making P6KE20CA-T optimal for balanced automotive and industrial applications requiring proven reliability, moderate surge handling, and minimal parasitic impact.
Availability
P6KE20CA-T is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input protection, telecom remote radio units, and medical infusion pump motor drivers requiring stable component supply despite its obsolete status through legacy channel support.
Supply support for P6KE20CA-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in IATF 16949-certified facilities.
The P6KE series belongs to Diodes' high-reliability TVS portfolio engineered specifically for AEC-Q101-qualified automotive electronics and industrial equipment needing robust transient immunity in harsh thermal and electrical environments.
FAQ
Is P6KE20CA-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE20CA-T (DS21502 Rev. 20-4, August 2024). However, Aetrix Electronics maintains legacy inventory and supports last-time buys with full traceability, including lot-specific test reports and RoHS documentation.
What is the difference between P6KE20A-T and P6KE20CA-T?
P6KE20A-T is unidirectional (cathode-banded), clamping only positive surges, while P6KE20CA-T is bidirectional (no band), protecting both polarities equally. Their VRWM, VBR, and VC values are identical, but circuit placement differs: unidirectional types require correct orientation; bidirectional types simplify layout on floating or AC-coupled nodes.
Can P6KE20CA-T replace SMAJ20CA in an existing design?
No - SMAJ20CA uses SMA package (smaller, surface-mount), whereas P6KE20CA-T is through-hole DO-15. Mechanical fit, thermal path, and soldering process differ significantly. Electrical parameters align closely, but board redesign and requalification are required for substitution.
Does P6KE20CA-T meet AEC-Q101 requirements?
Yes - Diodes specifies that P6KE20CA-T is qualified to AEC-Q101 for stress testing (including HTGB, TLP, and surge), manufactured in IATF 16949-certified facilities, and supports PPAP documentation upon request - confirming suitability for automotive under-hood applications.
P6KE20CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17.1V
- Voltage - Breakdown (Min):
- 19V
- Voltage - Clamping (Max) @ Ipp:
- 27.7V
- Current - Peak Pulse (10/1000µs):
- 22A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE20CA-T FAQ
1.How can I place an order for P6KE20CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE20CA-T 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 P6KE20CA-T reliable?
The price and inventory of P6KE20CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE20CA-T is usually 5 days.
3.What payment methods are accepted for P6KE20CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE20CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE20CA-T?
P6KE20CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE20CA-T 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 P6KE20CA-T?
For technical support, including P6KE20CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE20CA-T requirements.
6.How does Aetrix verify that P6KE20CA-T is sourced from the original manufacturer or authorized distributors?
All P6KE20CA-T 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 P6KE20CA-T meets industry standards.
7.What is the process for return or replacement of P6KE20CA-T?
All P6KE20CA-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE20CA-T, 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 P6KE20CA-T part is unused and in its original packaging.
Return procedure for P6KE20CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE20CA-T 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
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
