Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Taiwan Semiconductor Corporation P4SMA110

Name: P4SMA110
Brand: Taiwan Semiconductor Corporation
SKU: P4SMA110
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: P4SMA110

Manufacturer:: Taiwan Semiconductor Corporation

Category:: TVS Diodes

Package:: DO-214AC, SMA

Datasheet:: P4SMA110.pdf

Description:: 400W, 110V, 10%, UNIDIRECTIONAL,

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,750

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

P4SMA110 from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for overvoltage protection in DC power rails. It features a 99–121 V breakdown voltage (V_BR), 89.2 V working stand-off voltage (V_WM), 158 V maximum clamping voltage (V_C) at 2.6 A peak pulse current, and 400 W peak pulse power rating per 10/1000 µs waveform - deployed in SMPS input stages and onboard DC/DC converters.

For engineers reviewing the P4SMA110 datasheet, P4SMA110 pinout, P4SMA110 application, or P4SMA110 equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b transients, low leakage (<1 µA at V_WM), glass-passivated junction reliability, and UL 94V-0 molding compound compliance for industrial power systems.

Technical Context

The P4SMA110 operates as a unidirectional avalanche diode with a single-die configuration optimized for fast transient suppression. Its sub-1 ps response time ensures effective clamping of ESD and load-dump events before downstream circuitry sustains damage, while its 150 °C maximum junction temperature supports operation in thermally constrained PCB layouts.

Designed for automated SMT placement, it meets J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance. The device exhibits a +0.107 %/°C temperature coefficient of V_BR, enabling predictable voltage drift across automotive and industrial ambient ranges (−55 to +150 °C).

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR @ I_T = 1.0 mA	99–121 V - defines minimum and maximum avalanche onset voltage under standardized test conditions
V_WM	89.2 V - maximum continuous reverse operating voltage before significant leakage begins
V_C @ I_PPM = 2.6 A	158 V - clamped voltage during 10/1000 µs surge, limiting stress on protected ICs
P_PPM	400 W - peak pulse power handling capability per standard waveform, derated above 25 °C
I_R @ V_WM	<1 µA - ultra-low reverse leakage preserves efficiency in high-impedance bias networks
Junction Temp Range	−55 to +150 °C - enables deployment in under-hood automotive, industrial SMPS, and outdoor lighting

Pinout & Package

DO-214AC (SMA) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability; weight ≈ 0.060 g; UL 94V-0 flammability rated molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal	Connected to lower-potential side (e.g., GND or return path) in unidirectional clamp configuration
Cathode	Avalanche conduction terminal	Connected to protected line (e.g., +12 V rail); conducts during overvoltage to shunt energy to ground

Key Features

Feature	Design Value
Glass-passivated junction	Ensures stable V_BR tolerance and long-term reliability under thermal cycling and humidity exposure
ISO 7637-2 compliance	Validated for automotive load-dump (Pulse 5a/5b) and coupled transient immunity (Pulses 1, 2a, 2b, 3a, 3b)
Fast response time	<1.0 ps - enables clamping before transient energy couples into sensitive analog or digital circuitry
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing and end-of-life processing

Applications

Switching Mode Power Supply (SMPS)	On-board DC/DC Converter
Use Scenario: Input stage protection against line surges and inductive switching spikes in AC/DC adapters and telecom rectifiers. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive transients on the primary-side DC bus, diverting surge current away from bridge rectifier and controller IC. Use Value: With 158 V clamping at 2.6 A, P4SMA110 limits voltage overshoot below 160 V, preserving MOSFET and PWM controller reliability under 400 W peak stress.	Use Scenario: Protection of 24 V or 48 V intermediate bus rails feeding point-of-load regulators in server or industrial PLC modules. IC Role / Device Role / Timing Role: Placed directly at DC/DC input capacitor, absorbing load-dump energy from upstream battery or supply lines. Use Value: 89.2 V V_WM allows safe operation on 72–100 V nominal systems, while 150 °C T_JMAX supports compact thermal design without derating.
Lighting Application	Automotive Body Control Module (BCM)
Use Scenario: Overvoltage suppression in LED driver inputs exposed to 12 V/24 V vehicle battery transients or lightning-induced coupling. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional P4SMA110 guards against positive-going spikes only, minimizing capacitance loading. Use Value: Sub-1 µA leakage at 89.2 V prevents standby current drain in always-on architectural lighting controllers.	Use Scenario: Input rail protection in BCM microcontroller power domains subjected to ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2b (battery disconnect). IC Role / Device Role / Timing Role: Mounted near MCU LDO input to clamp transients before regulation, preventing brownout or latch-up. Use Value: 0.107 %/°C V_BR tempco ensures consistent clamping threshold across −40 to +125 °C ambient, critical for functional safety compliance.

Switching Mode Power Supply (SMPS)

On-board DC/DC Converter

Use Scenario: Input stage protection against line surges and inductive switching spikes in AC/DC adapters and telecom rectifiers.

IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive transients on the primary-side DC bus, diverting surge current away from bridge rectifier and controller IC.

Use Value: With 158 V clamping at 2.6 A, P4SMA110 limits voltage overshoot below 160 V, preserving MOSFET and PWM controller reliability under 400 W peak stress.

Use Scenario: Protection of 24 V or 48 V intermediate bus rails feeding point-of-load regulators in server or industrial PLC modules.

IC Role / Device Role / Timing Role: Placed directly at DC/DC input capacitor, absorbing load-dump energy from upstream battery or supply lines.

Use Value: 89.2 V V_WM allows safe operation on 72–100 V nominal systems, while 150 °C T_JMAX supports compact thermal design without derating.

Lighting Application

Automotive Body Control Module (BCM)

Use Scenario: Overvoltage suppression in LED driver inputs exposed to 12 V/24 V vehicle battery transients or lightning-induced coupling.

IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional P4SMA110 guards against positive-going spikes only, minimizing capacitance loading.

Use Value: Sub-1 µA leakage at 89.2 V prevents standby current drain in always-on architectural lighting controllers.

Use Scenario: Input rail protection in BCM microcontroller power domains subjected to ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2b (battery disconnect).

IC Role / Device Role / Timing Role: Mounted near MCU LDO input to clamp transients before regulation, preventing brownout or latch-up.

Use Value: 0.107 %/°C V_BR tempco ensures consistent clamping threshold across −40 to +125 °C ambient, critical for functional safety compliance.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ110A	DO-214AA (SMB) package; 110 V nominal V_BR; 600 W P_PPM; bidirectional variant available	Higher power rating but larger footprint; requires PCB layout change	Select when higher surge margin is needed and board space permits SMB package
1.5SMC110A	DO-214AB (SMC) package; 110 V nominal V_BR; 1500 W P_PPM; same unidirectional polarity	Triple the peak power; significantly larger thermal mass and mounting area	Choose for heavy-duty industrial motor drives where 400 W is insufficient

Compared with SMBJ110A and 1.5SMC110A, the P4SMA110 offers optimal balance of 400 W surge capability, DO-214AC footprint compatibility with high-density layouts, and cost-effective SMT assembly - making it preferred for space-constrained SMPS and lighting control boards requiring precise 89.2 V stand-off.

Availability

P4SMA110 is available at Aetrix Electronics and suitable for switching mode power supplies, onboard DC/DC converters, and lighting applications requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for P4SMA110 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 protection components for industrial and automotive markets.

The P4SMA110 belongs to TSC's P4SMA series of 400 W surface-mount TVS diodes, engineered for robust transient immunity in cost-sensitive, high-volume power conversion and electronic control systems.

FAQ

What is the breakdown voltage range of the P4SMA110?

The P4SMA110 has a guaranteed breakdown voltage (V_BR) range of 99 V to 121 V at 1.0 mA test current, measured per ANSI/IEEE C62.35 standards. This range reflects manufacturing tolerance and ensures reliable avalanche initiation across all units. The P4SMA110 maintains this specification across its full operating temperature range of −55 to +150 °C.

Is the P4SMA110 unidirectional or bidirectional?

The P4SMA110 is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix. It protects against positive transients only - conducting when cathode voltage exceeds anode by ≥99 V. For bidirectional protection, engineers must select P4SMA110C or P4SMA110CA variants, which feature symmetrical clamping in both polarities.

What is the maximum clamping voltage of the P4SMA110 under surge conditions?

The P4SMA110 clamps to a maximum of 158 V when subjected to a 10/1000 µs surge waveform with peak current of 2.6 A. This value is specified in the electrical characteristics table and verified per JEDEC test methods. The clamping voltage directly determines the peak stress imposed on downstream components, making it a critical parameter for system-level surge survivability analysis using the P4SMA110.

Does the P4SMA110 meet automotive transient immunity standards?

Yes, the P4SMA110 meets ISO 7637-2 requirements for Pulses 1, 2a, 2b, 3a, and 3b, covering common automotive electrical disturbances including load dump, battery reversal, and inductive switching. Its 400 W peak pulse rating and 150 °C junction rating make the P4SMA110 suitable for body electronics, lighting, and infotainment power rails in passenger vehicles and commercial platforms.

What packaging and reel quantity is offered for the P4SMA110?

The P4SMA110 is supplied in DO-214AC (SMA) package on 7,500-unit tape-and-reel format, optimized for high-speed pick-and-place assembly. The reel complies with EIA-481 standards, and each unit is marked with "CYJ" code per TSC's marking diagram. Lead finish is matte tin, ensuring J-STD-002-compliant solderability for lead-free reflow processes used with the P4SMA110.

P4SMA110 Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Package/Case:: DO-214AC, SMA

Series:: P4SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 89.2V

Voltage - Breakdown (Min):: 99V

Voltage - Clamping (Max) @ Ipp:: 158V

Current - Peak Pulse (10/1000µs):: 2.6A

Power - Peak Pulse:: 400W

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

P4SMA110 FAQ

1.How can I place an order for P4SMA110 through Aetrix?

Please submit a Request for Quotation (RFQ) for P4SMA110 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 P4SMA110 reliable?

The price and inventory of P4SMA110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110 is usually 5 days.

3.What payment methods are accepted for P4SMA110?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for P4SMA110?

P4SMA110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your P4SMA110 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 P4SMA110?

For technical support, including P4SMA110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110 requirements.

6.How does Aetrix verify that P4SMA110 is sourced from the original manufacturer or authorized distributors?

All P4SMA110 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 P4SMA110 meets industry standards.

7.What is the process for return or replacement of P4SMA110?

All P4SMA110 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110, 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 P4SMA110 part is unused and in its original packaging.

Return procedure for P4SMA110:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design

Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

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, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …