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Taiwan Semiconductor Corporation P4KE110A
- Part No.:
- P4KE110A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE110A.pdf
- Description:
- TVS DIODE 94VWM 152VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,403
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Product details
Overview
P4KE110A from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 110V nominal breakdown voltage, 94.0V working stand-off voltage, 152V maximum clamping voltage at 2.7A peak pulse current, and operates across –55°C to +175°C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface circuits.
For engineers reviewing the P4KE110A datasheet, P4KE110A pinout, P4KE110A application, or P4KE110A equivalent, key selection criteria include clamping performance under 10/1000μs surge, low leakage (<1μA @ 94V), AEC-Q101 qualification status, DO-41 package compatibility, and thermal derating behavior above 25°C ambient.
Technical Context
The P4KE110A uses an avalanche breakdown mechanism to clamp transients, with a typical response time of <1.0ps from 0V to VBR. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
It complies with ANSI/IEEE C62.35 for peak pulse power rating and supports non-repetitive 400W surges per 10/1000μs waveform. Thermal performance is defined for lead temperature (TL) up to 75°C, with steady-state dissipation rated at 1W on 5×5 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 110V - defines rated clamping threshold for system-level surge immunity design |
| Breakdown Voltage VBR | 105–116V @ 1mA - ensures reliable avalanche initiation before damage to downstream ICs |
| Working Stand-off Voltage VWM | 94.0V - maximum continuous DC voltage the device blocks without leakage exceeding 1μA |
| Clamping Voltage VC | 152V @ 2.7A - limits transient voltage seen by protected circuit during 400W surge event |
| Peak Pulse Power | 400W - sustains single 10/1000μs transients common in ISO 7637-2 and IEC 61000-4-5 testing |
| Junction Temperature Range | –55°C to +175°C - supports operation in under-hood automotive and industrial control environments |
| Package | DO-204AL (DO-41) - through-hole package with tin-plated leads, UL 94V-0 molding compound |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, glass-passivated silicon junction, cathode band marked on case end. Mounting requires 5×5 mm copper pads per terminal for full 1W steady-state rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to circuit ground or lowest potential rail; completes clamping path during overvoltage |
| Cathode | Protected line input | Connected to line being protected (e.g., 12V rail); blocks reverse current until VBR exceeded |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 400W peak pulse power | Withstands high-energy transients per ISO 7637-2 Pulse 1/2a/5a without degradation |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| Reverse leakage <1μA @ 94V | Prevents excessive standby current in always-on systems such as automotive body controllers |
| UL Recognized (E326243) | Meets safety requirements for end-equipment certification in industrial and transportation applications |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12V battery rail in engine control units exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDO regulators and microcontrollers. Use Value: Limits voltage to ≤152V during 400W surge, preventing latch-up or gate oxide rupture in downstream ICs. |
Use Scenario: 24V analog input channel of PLC I/O module subjected to EFT bursts and inductive kickback. IC Role / Device Role / Timing Role: Fast-response shunt protector between signal line and ground, operating in parallel with input RC filter. Use Value: Clamps 5kV EFT pulses within 1ps, preserving signal integrity and ADC accuracy without adding propagation delay. |
| LED Driver Supply Protection | Telecom Line Interface Protection |
|
Use Scenario: Constant-current LED driver board powered from 48V telecom supply experiencing switching noise and lightning-induced surges. IC Role / Device Role / Timing Role: DC bus protector placed across input capacitor to absorb repetitive 10/1000μs energy spikes. Use Value: Maintains 94V stand-off while clamping to 152V, avoiding false triggering and enabling use of lower-voltage-rated MOSFETs. |
Use Scenario: RS-485 transceiver interface connected to outdoor cabling vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Unidirectional TVS on VCC line and bidirectional pair on differential data lines (with P4KE110CA variant). Use Value: Provides coordinated clamping with <1ns response, ensuring transceiver survival under IEC 61000-4-5 Level 4 (4kV) tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ110A | Same DO-214AC (SMA) package; 110V nominal, 152V clamping, but rated for 400W at 10/1000μs with 1.0ps response | Surface-mount only; requires PCB rework vs. P4KE110A's through-hole DO-41 | Select when space-constrained layouts demand SMT or automated assembly is required |
| Vishay 1.5KE110A | Higher 1.5kW peak power rating; same 110V nominal, 152V clamping, but larger DO-201AE (DO-27) package and 1.0ps response | Used in higher-energy surge environments (e.g., AC mains input stages) where 400W is insufficient | Select when legacy 1.5KE footprint exists or system-level surge testing exceeds 400W capability |
Compared with P4KE110A, SMAJ110A offers identical electrical specs in a surface-mount form factor ideal for compact designs, while 1.5KE110A provides greater surge margin in larger through-hole packages - choice depends on layout constraints and required energy handling beyond standard 400W automotive/industrial transients.
Availability
P4KE110A is available at Aetrix Electronics and suitable for automotive power inputs, industrial sensor interfaces, LED driver supplies, and telecom line protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE110A 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 thyristors for industrial and automotive markets.
The P4KE series targets cost-sensitive, high-reliability transient suppression in DC power systems - engineered for AEC-Q101 compliance, UL recognition, and robust surge endurance in harsh environments.
FAQ
What is the clamping voltage of the P4KE110A under a 400W 10/1000μs surge?
The P4KE110A clamps to a maximum of 152V at 2.7A peak pulse current, which corresponds to the 400W 10/1000μs waveform condition. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry sees no more than 152V during standardized surge events - critical for safeguarding 120V-rated capacitors and logic-level interfaces downstream of the P4KE110A.
Is the P4KE110A suitable for automotive applications?
Yes, the P4KE110A is offered in an AEC-Q101 qualified version (P4KE110AH), validated for temperature cycling, high-temperature reverse bias, and mechanical shock. While the base P4KE110A meets all electrical specs, automotive-grade deployment requires the "H" suffix variant - confirmed by Taiwan Semiconductor's qualification report N2104 and UL file E-326243.
How does the P4KE110A differ from the P4KE110 (non-A) variant?
The P4KE110A has tighter breakdown voltage tolerance (105–116V) versus P4KE110 (99–121V), resulting in more consistent clamping behavior across production lots. Its VWM is also higher (94.0V vs. 89.2V), reducing leakage risk in high-impedance sensing nodes. Both share identical DO-41 packaging and 400W surge rating.
What is the maximum steady-state power dissipation for the P4KE110A?
The P4KE110A is rated for 1W steady-state power dissipation at lead temperature (TL) = 75°C, assuming mounting on 5×5 mm copper pads per terminal. Derating begins linearly above 25°C ambient, reaching zero at 175°C junction temperature - a key constraint when used in enclosed, thermally isolated enclosures without forced airflow.
Can the P4KE110A be used in bidirectional configurations?
No - the P4KE110A is unidirectional only, with cathode band marking indicating polarity. For bidirectional protection, Taiwan Semiconductor specifies the P4KE110CA variant (C or CA suffix), which features symmetrical breakdown in both directions and identical clamping performance - the P4KE110A must not be substituted in AC-coupled or floating-line applications without verification.
P4KE110A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- P4KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 2.7A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE110A FAQ
1.How can I place an order for P4KE110A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE110A 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 P4KE110A reliable?
The price and inventory of P4KE110A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE110A is usually 5 days.
3.What payment methods are accepted for P4KE110A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE110A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE110A?
P4KE110A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE110A 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 P4KE110A?
For technical support, including P4KE110A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE110A requirements.
6.How does Aetrix verify that P4KE110A is sourced from the original manufacturer or authorized distributors?
All P4KE110A 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 P4KE110A meets industry standards.
7.What is the process for return or replacement of P4KE110A?
All P4KE110A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE110A, 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 P4KE110A part is unused and in its original packaging.
Return procedure for P4KE110A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE110A Tags
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