My Inquiry
My Account
Taiwan Semiconductor Corporation P4SMA110H
- Part No.:
- P4SMA110H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA110H.pdf
- Description:
- 400W, 110V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,440
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4SMA110H from Taiwan Semiconductor is a unidirectional 400W surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, with 99–121 V breakdown voltage (VBR), 89.2 V working stand-off voltage (VWM), and 158 V clamping voltage (VC) at 2.6 A peak impulse current under 10/1000 µs waveform-designed for overvoltage protection in automotive DC/DC converters and industrial power supplies.
For engineers reviewing the P4SMA110H datasheet, P4SMA110H pinout, P4SMA110H application, or P4SMA110H equivalent, key selection criteria include its AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, <1 µA reverse leakage at VWM, 150 °C max junction temperature, and glass-passivated junction for stable clamping performance in harsh environments.
Technical Context
The P4SMA110H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified VBR range (99–121 V @ 1.0 mA). It delivers precise clamping at 158 V under standardized 10/1000 µs surge conditions, with fast response time (<1.0 ps) and low temperature coefficient (0.107 %/°C).
Its DO-214AC (SMA) package supports automated placement and meets JESD201 Class 2 whisker resistance, UL 94V-0 flammability, and moisture sensitivity level 1 per J-STD-020-enabling reliable integration into high-volume automotive and industrial PCB assemblies without reflow concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 99 V / 121 V @ 1.0 mA - defines minimum and maximum voltage at which avalanche conduction begins, critical for margin-based overvoltage threshold setting |
| VWM | 89.2 V - maximum continuous reverse operating voltage before leakage rises significantly; sets safe DC bus operating limit |
| VC @ IPPM | 158 V @ 2.6 A (10/1000 µs) - clamped voltage during surge, directly limits stress on downstream ICs and MOSFETs |
| PPPM | 400 W - peak pulse power handling capacity, determines survivability against ISO 7637-2 Pulse 1 and Pulse 3b transients |
| IR @ VWM | <1 µA - ultra-low reverse leakage ensures minimal standby power loss and signal integrity in high-impedance sensing paths |
| TJ max | 150 °C - maximum junction temperature rating enables operation in under-hood automotive environments and enclosed industrial enclosures |
| Package | DO-214AC (SMA) - industry-standard surface-mount outline with 2.54 mm lead pitch, compatible with standard reflow profiles and AOI inspection |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with matte tin-plated leads, cathode band marking for polarity identification, weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 48 V rail); conducts avalanche current to ground during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-enables use in ADAS and body control modules |
| Glass passivated junction | Stable VBR tolerance and low leakage across temperature and lifetime, eliminating degradation from humidity or bias stress |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) without failure |
| Fast response time | <1.0 ps - clamps before sensitive logic or gate drivers experience damaging overvoltage, preserving timing-critical circuits |
| Moisture sensitivity level 1 | No floor life limitation or baking requirement before reflow-reduces manufacturing overhead and avoids moisture-induced popcorning |
Applications
| Automotive DC/DC Converters | Industrial SMPS Inputs |
|---|---|
Use Scenario: Protection of 48 V–60 V input stage in bidirectional DC/DC converters used in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp load-dump spikes up to ±100 V. Use Value: Limits transient voltage to ≤158 V, preventing damage to synchronous rectifier MOSFETs rated at 200 V VDSS. | Use Scenario: Input surge suppression in 100–120 VDC industrial switch-mode power supplies feeding PLC I/O modules. IC Role / Device Role / Timing Role: Primary-line TVS connected across bulk capacitor input to absorb repetitive switching surges and lightning-induced transients. Use Value: Withstands 400 W peak pulses per ISO 7637-2 Pulse 3b, enabling >100,000 surge cycles without parameter shift. |
| LED Driver Power Rails | Telecom Power Feeds |
Use Scenario: Overvoltage protection on constant-current LED driver inputs exposed to 110 VAC rectified rails in streetlight systems. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of PFC controller to prevent latch-up during AC line transients. Use Value: 89.2 V VWM allows stable operation at nominal 96 VDC bus while clamping 158 V surges-preserving driver IC's 120 V absolute max rating. | Use Scenario: Secondary-side protection on -48 V telecom power feeds subject to hot-swap and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground on negative supply rail to clamp positive-going transients. Use Value: Cathode-to-rail connection enables direct clamping of +158 V spikes on -48 V net, protecting backplane supervisors and PMBus controllers. |
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 | Same VWM (89.2 V), but SMB package (DO-214AA); 1.0 A higher IPPM (2.7 A vs. 2.6 A), identical VC (158 V) | Slightly larger footprint (4.58 × 3.94 mm vs. 4.57 × 2.79 mm); same thermal dissipation capability | Select SMBJ110A if board layout accommodates wider package and requires marginally higher surge current headroom |
| 1.5SMC110A | Higher PPPM (1500 W), larger SMC package (DO-214AB); VWM = 94 V, VC = 177 V - less precise clamping | Designed for higher-energy transients; clamps 19 V higher than P4SMA110H, increasing stress on protected devices | Choose 1.5SMC110A only when legacy designs require higher energy rating and can tolerate elevated clamping voltage |
Compared with SMBJ110A and 1.5SMC110A, the P4SMA110H offers optimal balance of compact DO-214AC footprint, tight 158 V clamping, and AEC-Q101 qualification-making it preferred for space-constrained automotive and industrial modules where precise voltage limiting and qualification compliance are mandatory.
Availability
P4SMA110H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS inputs, and LED driver power rails requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for P4SMA110H 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-with global distribution and AEC-Q101-qualified product lines.
The P4SMA110H belongs to TSC's P4SMAxH series of 400 W surface-mount TVS diodes, engineered specifically for robust transient suppression in automotive and industrial power systems where reliability, small size, and standardized packaging are essential.
FAQ
What is the maximum clamping voltage of the P4SMA110H under standard surge conditions?
The P4SMA110H has a maximum clamping voltage (VC) of 158 V when subjected to a 10/1000 µs waveform peak impulse current of 2.6 A. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by protected circuitry during a defined transient event-critical for ensuring downstream components remain within their absolute maximum ratings.
Is the P4SMA110H suitable for automotive applications?
Yes, the P4SMA110H is AEC-Q101 qualified and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements. Its 150 °C maximum junction temperature, glass-passivated junction, and moisture sensitivity level 1 make it suitable for under-hood and body-control module applications where reliability under thermal and electrical stress is mandatory.
What does the "H" suffix indicate in P4SMA110H?
The "H" suffix in P4SMA110H denotes the unidirectional configuration with standard cathode-band polarity marking. It distinguishes the part from bidirectional variants (e.g., P4SMA110AH), which use CH or CAH suffixes and provide symmetrical clamping in both directions-whereas P4SMA110H clamps only in reverse bias and conducts forward current like a standard diode.
How does the P4SMA110H compare to the P4SMA110AH variant?
The P4SMA110H is unidirectional with VBR = 99–121 V and VWM = 89.2 V, while P4SMA110AH is bidirectional with tighter VBR = 105–116 V and VWM = 94.0 V. The AH version provides symmetrical protection for AC-coupled or floating lines, whereas P4SMA110H is optimized for DC rail protection with lower leakage and simpler grounding.
What is the recommended PCB pad layout for the P4SMA110H in DO-214AC (SMA) package?
Taiwan Semiconductor specifies a suggested pad layout matching DO-214AC mechanical dimensions: 2.54 mm lead pitch, 1.52 mm lead width, and 2.79 mm body width. Thermal relief pads with ≥0.3 mm solder mask clearance and symmetric copper pour on both terminals ensure uniform reflow, mechanical stability, and optimal thermal dissipation during surge events-critical for maintaining VBR stability over lifetime.
P4SMA110H 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA110H FAQ
1.How can I place an order for P4SMA110H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA110H 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 P4SMA110H reliable?
The price and inventory of P4SMA110H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA110H is usually 5 days.
3.What payment methods are accepted for P4SMA110H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA110H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA110H?
P4SMA110H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA110H 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 P4SMA110H?
For technical support, including P4SMA110H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA110H requirements.
6.How does Aetrix verify that P4SMA110H is sourced from the original manufacturer or authorized distributors?
All P4SMA110H 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 P4SMA110H meets industry standards.
7.What is the process for return or replacement of P4SMA110H?
All P4SMA110H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA110H, 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 P4SMA110H part is unused and in its original packaging.
Return procedure for P4SMA110H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA110H 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 …
