My Inquiry
My Account
Taiwan Semiconductor Corporation P4SMA100
- Part No.:
- P4SMA100
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA100.pdf
- Description:
- 400W, 100V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:2,503
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA100 from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 90–110 V breakdown voltage (VBR), 81.0 V working stand-off voltage (VWM), 144 V maximum clamping voltage (VC) at 2.9 A peak pulse current, and 400 W peak pulse power rating under 10/1000 µs waveform - deployed in switching mode power supplies and on-board DC/DC converters.
For engineers reviewing the P4SMA100 datasheet, P4SMA100 pinout, P4SMA100 application, or P4SMA100 equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, junction temperature derating above 25°C, DO-214AC (SMA) package compatibility with automated placement, and leakage current ≤1 µA at VWM.
Technical Context
The P4SMA100 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response time (<1.0 ps) and stable breakdown characteristics. Its clamping behavior is defined by a 10/1000 µs double-exponential surge waveform per IEC 61000-4-5 and ANSI/IEEE C62.35, with thermal derating governed by Fig.2 in the datasheet.
It supports operation across –55°C to +150°C junction temperature range and exhibits a VBR temperature coefficient of 0.106 %/°C. The device is rated for 40 A non-repetitive forward surge current (IFSM) and maintains <3.5 V forward voltage at 25 A - critical for fault-current handling in high-energy transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0 mA | 90–110 V - defines minimum and maximum voltage at which avalanche conduction begins; ensures reliable triggering across process variation |
| VWM | 81.0 V - maximum continuous reverse operating voltage before significant leakage; sets safe DC rail margin for 100 V nominal systems |
| VC @ IPPM = 2.9 A | 144 V - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure level |
| PPPM | 400 W - peak pulse power dissipation capability; enables compliance with ISO 7637-2 Pulse 1 and Pulse 3b test profiles |
| IR @ VWM | ≤1 µA - reverse leakage at stand-off voltage; minimizes standby power loss and avoids false triggering in high-impedance nodes |
| TJMAX | +150°C - maximum junction temperature; allows operation in thermally constrained environments such as enclosed power modules |
| Package | DO-214AC (SMA) - industry-standard surface-mount outline with 0.060 g mass; compatible with J-STD-002 solderability and JESD 201 Class 2 whisker resistance |
Pinout & Package
Package: DO-214AC (SMA), molded plastic case with matte tin-plated leads, polarity indicated by cathode band. Meets UL 94V-0 flammability rating and J-STD-020 moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or lower-potential node in unidirectional configuration; defines current path during clamping |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., +100 V rail); avalanche conduction occurs when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| Clamping voltage ≤144 V at 2.9 A | Provides predictable overvoltage limiting for downstream 150 V-rated MOSFETs or controllers in DC/DC stages |
| Response time <1.0 ps | Ensures suppression of nanosecond-scale ESD and fast-switching noise before sensitive ICs experience overstress |
| ISO 7637-2 compliant | Validated for automotive load-dump and supply-line transient immunity testing (Pulse 1, 2a, 2b, 3a, 3b) |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally restricted substances |
Applications
| Switching Mode Power Supply (SMPS) | On-Board DC/DC Converter |
|---|---|
|
Use Scenario: Protection of primary-side MOSFET gate drivers and secondary-side rectifier outputs against flyback spikes and line transients. IC Role / Device Role: Unidirectional TVS placed across input bulk capacitor or output rectifier to clamp inductive kickback and surge energy. Use Value: Limits transient voltage to ≤144 V during 400 W surges, preventing gate oxide rupture in 150 V-rated Si MOSFETs and ensuring >100,000-cycle reliability. |
Use Scenario: Safeguarding isolated 48 V-to-12 V or 24 V-to-5 V buck converters in industrial PLCs and telecom power modules. IC Role / Device Role: Standoff protection on secondary-side output rail to absorb coupling transients from primary-side switching noise and external load dumps. Use Value: Maintains VWM = 81.0 V margin above nominal 72 V max input, enabling clean regulation without false triggering during normal ripple. |
| Lighting Application | Adapters |
|
Use Scenario: Overvoltage suppression in LED driver front-ends exposed to mains-borne surges and hot-plug events. IC Role / Device Role: Parallel-connected TVS across AC/DC bridge output or constant-current regulator input to shunt surge current away from driver ICs. Use Value: Withstands 40 A IFSM and clamps to 144 V, protecting 100 V-rated GaN FETs and analog controllers from EN 61000-4-5 Level 3 surges. |
Use Scenario: Input-stage protection in universal-input wall adapters (90–264 VAC) subjected to lightning-induced surges and capacitor discharge transients. IC Role / Device Role: Primary-side TVS placed after bridge rectifier but before bulk capacitor to limit peak voltage seen by electrolytic capacitors and PWM controllers. Use Value: Delivers 400 W pulse power handling with <1 µA leakage at 81 V, minimizing no-load losses while meeting UL 1449 Type 2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A (Bourns) | Bidirectional variant; VBR = 111–123 V; VC = 165 V @ 2.4 A; same DO-214AA (SMB) footprint but larger body than DO-214AC | Supports AC-coupled or bidirectional signal lines; not suitable where unidirectional polarity enforcement is required | Select only if bidirectional protection is needed and PCB layout accommodates SMB package width (4.58 mm vs SMA's 2.79 mm) |
| 1.5SMC100A (ON Semiconductor) | Same unidirectional function; VBR = 105–116 V; VC = 158 V @ 2.5 A; DO-214AB (SMC) package with higher 1500 W rating but 7.11 mm length | Targeted at higher-energy transients (e.g., IEC 61000-4-5 Level 4); requires larger board area and different reflow profile | Choose when system-level surge tests exceed 400 W; avoid if space-constrained or legacy SMA footprint must be retained |
Compared with SMBJ100A and 1.5SMC100A, the P4SMA100 offers tighter VBR tolerance (90–110 V), lower clamping (144 V), and optimal fit for space-limited DO-214AC layouts - making it preferred for compact 100 V DC bus protection where precise voltage thresholding and minimal board area are critical.
Availability
P4SMA100 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, lighting applications, and adapter designs requiring stable component supply, consistent parametric performance, and full traceability through J-STD-020-compliant packaging.
Supply support for P4SMA100 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 - headquartered in Hsinchu, Taiwan, with global distribution and AEC-Q200-qualified product lines.
The P4SMA100 belongs to TSC's P4SMAxx family of 400 W surface-mount TVS diodes engineered for automotive, industrial, and consumer power electronics requiring ISO 7637-2 compliance, high surge robustness, and automated assembly compatibility.
FAQ
What is the breakdown voltage range for P4SMA100?
The P4SMA100 has a specified breakdown voltage (VBR) range of 90 V to 110 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range reflects manufacturing tolerance and ensures reliable turn-on across temperature and unit-to-unit variation while maintaining compatibility with 100 V nominal systems. The P4SMA100 achieves this using a glass-passivated silicon junction optimized for stability.
Is P4SMA100 unidirectional or bidirectional?
The P4SMA100 is a unidirectional transient voltage suppressor, as confirmed by its part number suffix (no "C" or "CA") and cathode-band marking per DO-214AC mechanical drawing. It conducts only in reverse bias above VBR and blocks forward current up to 3.5 V at 25 A - unlike bidirectional variants such as P4SMA100C, which lack polarity marking and conduct symmetrically. This makes the P4SMA100 appropriate for DC rail protection with defined ground reference.
What is the maximum clamping voltage of P4SMA100 under surge conditions?
The P4SMA100 exhibits a maximum clamping voltage (VC) of 144 V when subjected to a 10/1000 µs surge waveform at 2.9 A peak pulse current. This value is guaranteed per datasheet Table "ELECTRICAL SPECIFICATIONS" and defines the upper voltage limit imposed on protected circuits during standardized transient events such as ISO 7637-2 Pulse 1. The P4SMA100 achieves this clamping performance via controlled avalanche characteristics and low dynamic impedance.
Does P4SMA100 meet automotive transient immunity standards?
Yes, the P4SMA100 meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (sudden load dump interruption), Pulse 2b (supply disconnection), Pulse 3a (capacitive coupled burst), and Pulse 3b (inductive coupled burst). This compliance is explicitly stated in the "FEATURES" section of the datasheet and validated through standardized surge testing - confirming its suitability for 12 V and 24 V automotive subsystems where the P4SMA100 serves as primary overvoltage guard.
What is the package type and mounting compatibility of P4SMA100?
The P4SMA100 uses the DO-214AC (SMA) surface-mount package - measuring 4.57 mm × 2.79 mm × 2.12 mm with matte tin-plated leads - and is fully compatible with J-STD-002 solderability standards and automated pick-and-place equipment. Its low 0.060 g mass and level 1 moisture sensitivity enable standard reflow profiles without baking, and the cathode band provides unambiguous polarity orientation during assembly. This exact package is shared across the entire P4SMA6.8–P4SMA200 series.
P4SMA100 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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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)
P4SMA100 FAQ
1.How can I place an order for P4SMA100 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA100 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 P4SMA100 reliable?
The price and inventory of P4SMA100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA100 is usually 5 days.
3.What payment methods are accepted for P4SMA100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA100?
P4SMA100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA100 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 P4SMA100?
For technical support, including P4SMA100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA100 requirements.
6.How does Aetrix verify that P4SMA100 is sourced from the original manufacturer or authorized distributors?
All P4SMA100 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 P4SMA100 meets industry standards.
7.What is the process for return or replacement of P4SMA100?
All P4SMA100 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA100, 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 P4SMA100 part is unused and in its original packaging.
Return procedure for P4SMA100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA100 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
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…
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 …
