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Taiwan Semiconductor Corporation P4SMA160A
- Part No.:
- P4SMA160A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA160A.pdf
- Description:
- TVS DIODE 136VWM 219VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,868
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Product details
Overview
P4SMA160A from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, rated for 400W peak pulse power at 10/1000μs waveform, with 136V working stand-off voltage (VWM), 152–168V breakdown voltage (VBR), and 219V maximum clamping voltage (VC) at 1.9A peak impulse current - deployed for overvoltage protection in DC/DC converters and automotive power modules.
For engineers reviewing the P4SMA160A datasheet, P4SMA160A pinout, P4SMA160A application, or P4SMA160A equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, junction temperature derating above 25°C, moisture sensitivity level (MSL 1), and compatibility with automated SMT placement on high-reliability industrial PCBs.
Technical Context
The P4SMA160A operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve sub-1ps response time and <1μA reverse leakage at VWM. Its clamping behavior follows the standardized 10/1000μs double-exponential surge waveform per ANSI/IEEE C62.35, with thermal derating governed by Fig.2 in the datasheet.
Designed for single-die configuration in DO-214AC, it supports polarity-sensitive placement via cathode band marking and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements - enabling use in space-constrained, high-surge environments without solder joint reliability concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 136 V - Maximum continuous reverse operating voltage before significant leakage; defines system-level standoff margin in 120–140V DC bus applications. |
| VBR min/max | 152 V / 168 V at 1.0 mA - Confirmed avalanche initiation range; ensures consistent turn-on across production lots and temperature. |
| VC @ IPPM | 219 V at 1.9 A (10/1000μs) - Clamped voltage during worst-case surge; determines protected circuit's maximum transient stress exposure. |
| PPPM | 400 W - Peak pulse power rating; defines energy-handling capability for short-duration transients like load dump or inductive switching. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design limits for board layout, copper pour, and ambient operating envelope. |
| IR @ VWM | ≤1 μA - Reverse leakage at rated stand-off; ensures minimal standby power loss and signal integrity in high-impedance monitoring paths. |
| Package | DO-214AC (SMA) - Standardized surface-mount outline with 0.060g mass; compatible with JEDEC-compliant reflow profiles and J-STD-002 solderability. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with matte tin-plated leads, cathode band marking for polarity identification, and UL 94V-0 rated compound. Weight: 0.060 g. Moisture sensitivity level: MSL 1 (unlimited floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge events (e.g., reverse battery connection). |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates controlled avalanche breakdown when reverse voltage exceeds VBR to clamp transients. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and low IR drift over temperature and lifetime - critical for long-term reliability in automotive ECUs. |
| Sub-1 ps response time | Ensures suppression of fast-rising ESD and lightning-induced transients before downstream ICs experience overstress. |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling) - required for automotive 12V/24V systems. |
| MSL 1 rating | Eliminates bake-out requirement prior to reflow; supports direct placement in high-volume SMT lines without moisture-related popcorning risk. |
Applications
| Automotive Power Modules | Industrial DC/DC Converters |
|---|---|
Use Scenario: Protection of gate drivers and microcontrollers in 12V/24V automotive body control modules subjected to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed across input rails to limit transient voltage to ≤219V during 100V–150V surges. Use Value: Prevents latch-up or permanent damage to 3.3V/5V logic supplies by maintaining rail integrity below 220V during 400W peak events. | Use Scenario: Input-side surge suppression in isolated 48V-to-12V DC/DC converters used in factory automation I/O modules. IC Role / Device Role / Timing Role: Standoff protector between primary-side bulk capacitor and upstream power source, activated within <1ps upon overvoltage detection. Use Value: Maintains system uptime by absorbing repetitive 10/1000μs transients up to 400W without degradation, per JESD22-A114 qualification. |
| LED Driver Power Supplies | Telecom Power Interfaces |
Use Scenario: Overvoltage guard on constant-current LED driver inputs exposed to field wiring faults and induced surges in outdoor signage. IC Role / Device Role / Timing Role: Primary clamping device parallel to input filter capacitor, conducting only during transients exceeding 136V. Use Value: Extends LED driver MTBF by limiting voltage stress on electrolytic capacitors and MOSFETs to ≤219V during 1.9A surge events. | Use Scenario: Front-end protection for PoE-powered network switches handling Ethernet cable ESD and lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Rail-to-rail unidirectional suppressor on 48V DC input, coordinated with common-mode chokes and secondary-side TVS arrays. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (1kV line-earth) by clamping differential surges to <220V before reaching DC-DC controller ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ160A | Same VWM (136V), identical VBR range (152–168V), but SMB package (DO-214AA) - 1.6mm wider body and 0.2mm taller than SMA. | Requires PCB pad revision due to larger footprint; suitable where higher thermal mass or legacy SMB layout exists. | Select SMBJ160A only if existing board uses SMB pads or thermal dissipation >400W is needed (SMB offers ~10% higher thermal resistance margin). |
| 1.5SMC160A | Same electrical specs (VWM=136V, VBR=152–168V, VC=219V), but larger DO-214AB (SMC) package - 2.5x footprint area vs. DO-214AC. | Not suitable for space-constrained designs; preferred in high-vibration environments where mechanical robustness outweighs size penalty. | Choose 1.5SMC160A only when board real estate allows and mechanical shock resistance is prioritized over miniaturization. |
Compared with SMBJ160A and 1.5SMC160A, the P4SMA160A delivers identical clamping performance in the smallest standardized surface-mount TVS package (DO-214AC), enabling higher component density and compatibility with fine-pitch automated placement - critical for next-gen automotive ADAS power modules.
Availability
P4SMA160A is available at Aetrix Electronics and suitable for automotive power modules, industrial DC/DC converters, and LED driver power supplies requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for P4SMA160A 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 Science Park, Taiwan.
The P4SMA160A belongs to TSC's P4SMAxx(A) family of 400W surface-mount TVS diodes, engineered specifically for ISO 7637-2-compliant automotive and industrial power rail protection with MSL 1 reliability and automated assembly readiness.
FAQ
What is the maximum clamping voltage of the P4SMA160A under standard test conditions?
The P4SMA160A has a maximum clamping voltage (VC) of 219 V when subjected to a 10/1000μs surge waveform at 1.9 A peak impulse current, as specified in the Electrical Specifications table. This value defines the upper voltage limit imposed on protected circuits during transient events and is measured per ANSI/IEEE C62.35 standards. The P4SMA160A maintains this clamping performance across its qualified operating temperature range of –55°C to +150°C.
Is the P4SMA160A suitable for bidirectional transient suppression?
No, the P4SMA160A is a unidirectional TVS diode intended for DC rail protection with defined anode/cathode polarity. For bidirectional applications, Taiwan Semiconductor specifies parts with "C" or "CA" suffixes (e.g., P4SMA160CA). Using the P4SMA160A in reverse-biased AC configurations risks failure due to lack of symmetric breakdown characteristics - always verify polarity alignment per the cathode band marking on the DO-214AC package.
What is the moisture sensitivity level (MSL) rating for the P4SMA160A?
The P4SMA160A is rated MSL 1 per J-STD-020, meaning it has unlimited floor life at ≤30°C/60% RH and requires no baking prior to reflow soldering. This eliminates moisture-related defects such as popcorn cracking during lead-free reflow, making the P4SMA160A ideal for high-throughput SMT lines without dry-pack handling or humidity-controlled storage infrastructure.
Does the P4SMA160A meet automotive industry surge immunity standards?
Yes, the P4SMA160A is explicitly validated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test waveforms - covering key automotive transient threats including load dump, switch-off spikes, and capacitive coupling noise. Its 400W peak pulse power rating and 219V clamping voltage ensure compliance in 12V and 24V vehicle electrical systems, as confirmed in the manufacturer's test reports referenced in Version S2102 documentation.
What is the thermal derating behavior of the P4SMA160A above 25°C ambient?
The P4SMA160A's peak pulse power rating decreases linearly above 25°C ambient temperature, following the derating curve in Figure 2 of the datasheet: at 75°C TA, PPPM drops to ~70% (280W); at 125°C TA, it falls to ~35% (140W). This behavior stems from reduced thermal headroom for junction heat dissipation and must be factored into layout design - including copper area, airflow, and proximity to other heat sources - to maintain reliable clamping performance across the full –55°C to +150°C operating range.
P4SMA160A 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):
- 136V
- Voltage - Breakdown (Min):
- 152V
- Voltage - Clamping (Max) @ Ipp:
- 219V
- Current - Peak Pulse (10/1000µs):
- 1.9A
- 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)
P4SMA160A FAQ
1.How can I place an order for P4SMA160A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA160A 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 P4SMA160A reliable?
The price and inventory of P4SMA160A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA160A is usually 5 days.
3.What payment methods are accepted for P4SMA160A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA160A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA160A?
P4SMA160A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA160A 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 P4SMA160A?
For technical support, including P4SMA160A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA160A requirements.
6.How does Aetrix verify that P4SMA160A is sourced from the original manufacturer or authorized distributors?
All P4SMA160A 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 P4SMA160A meets industry standards.
7.What is the process for return or replacement of P4SMA160A?
All P4SMA160A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA160A, 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 P4SMA160A part is unused and in its original packaging.
Return procedure for P4SMA160A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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