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Taiwan Semiconductor Corporation P4SMA75C
- Part No.:
- P4SMA75C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA75C.pdf
- Description:
- 400W, 75V, 10%, BIDIRECTIONAL, T
- Quantity:
- Payment:
- Shipping:
Inventory:8,002
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Product details
Overview
P4SMA75C from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, rated for 400W peak pulse power, 75V breakdown voltage (67.5–82.5V), and 108V maximum clamping voltage at 3.8A 10/1000μs surge current-designed to protect DC/DC converters and lighting circuits against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the P4SMA75C datasheet, P4SMA75C pinout, P4SMA75C application, or P4SMA75C equivalent, key selection criteria include bidirectional clamping capability, sub-1ps response time, <1μA leakage at 60.7V working stand-off voltage, compliance with J-STD-020 Level 1 moisture sensitivity, and UL 94V-0 molding compound-critical for automotive-grade power rail protection.
Technical Context
The P4SMA75C implements a glass-passivated silicon junction optimized for fast transient suppression in bidirectional signal and power lines. Its electrical characteristics apply identically in both directions, with VBR tested at 1mA and VC measured under standardized 10/1000μs waveform per ANSI/IEEE C62.35.
Thermal derating follows Figure 2: peak power drops linearly above 25°C ambient, maintaining 150°C max junction temperature. The device meets ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect/relay bounce), and Pulse 3a/3b (capacitive coupling switch noise), confirming suitability for automotive electronics power conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR Min/Max | 67.5V / 82.5V at 1mA test current-defines reliable conduction onset across manufacturing lot variation |
| VWM | 60.7V-maximum continuous reverse voltage before significant leakage; sets safe operating margin below breakdown |
| VC @ IPPM | 108V at 3.8A (10/1000μs)-clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 400W-peak transient energy absorption capacity without failure under defined waveform |
| IR @ VWM | <1μA-negligible standby power loss and minimal impact on high-impedance sensing nodes |
| Response Time | <1.0ps-enables suppression of nanosecond-scale ESD and switching transients before IC damage occurs |
| TJ Max | 150°C-supports operation in under-hood automotive environments and enclosed power supplies |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-die bidirectional configuration. Cathode band marking denotes polarity reference; for bidirectional use (suffix "C"), the band indicates the center tap-both terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Transient current entry (reverse bias) | Accepts surge current during positive or negative voltage excursion relative to cathode band |
| Cathode (banded end) | Transient current return path | Serves as reference node; bidirectional symmetry means either terminal may serve as system ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift in harsh environments |
| UL 94V-0 molding compound | Prevents flame propagation in fault conditions-required for automotive and industrial safety certifications |
| J-STD-020 Level 1 moisture sensitivity | Enables standard SMT reflow without pre-bake, reducing assembly cost and process complexity |
| ISO 7637-2 compliance | Validated performance against automotive transient standards-eliminates need for additional external filtering |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and prevents whisker growth per JESD 201 Class 2 |
Applications
| Automotive Power Rail Protection | LED Driver Input Stage |
|---|---|
Use Scenario: Protecting 12V/24V vehicle battery-fed ECUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input rails to clamp transients before they reach DC/DC controllers or microcontrollers. Use Value: Withstands 400W surges and clamps to 108V-keeping downstream 36V-rated regulators within safe operating area during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding constant-current LED drivers in streetlight and headlamp modules from switching spikes and ESD. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing inductive kickback from MOSFET switches and electrostatic discharge at input terminals. Use Value: Sub-1ps response ensures clamping before LED driver ICs experience latch-up; <1μA leakage avoids interference with precision current-sense feedback. |
| Industrial SMPS Input Filtering | On-Board DC/DC Converter Protection |
Use Scenario: Front-end protection in DIN-rail mounted AC/DC adapters exposed to lightning-induced surges on building wiring. IC Role / Device Role / Timing Role: First-line transient suppressor after bridge rectifier, shunting surge energy away from bulk capacitor and controller IC. Use Value: 108V clamping voltage allows use with 75V-rated electrolytics; DO-214AC footprint enables high-density layout without thermal vias. | Use Scenario: Input rail protection for point-of-load (POL) converters powering FPGAs and ASICs in telecom base stations. IC Role / Device Role / Timing Role: Localized TVS placed adjacent to POL input pins to suppress board-level coupling and hot-swap transients. Use Value: 60.7V working stand-off supports 48V nominal systems with 25% tolerance; bidirectional operation eliminates polarity concerns during maintenance hot-plug. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA (Bourns) | Same DO-214AA package, 400W rating, but 75V VBR min/max tighter (67.5–77.9V); 112V VC @ 3.6A | Higher clamping voltage reduces margin for 75V-rated downstream components | Select when footprint compatibility with SMBJ-series boards is required and higher VC is acceptable |
| 1.5KE75CA (ON Semiconductor) | Through-hole DO-15 package, same 75V VBR range, 400W rating, 112V VC @ 3.6A | Not surface-mountable; incompatible with automated SMT lines and high-density PCB layouts | Select only for legacy through-hole designs or prototyping where rework flexibility outweighs production efficiency |
Compared with SMBJ75CA and 1.5KE75CA, the P4SMA75C offers identical 75V standoff and lower 108V clamping voltage in a compact DO-214AC package-delivering superior surge margin and SMT manufacturability for space-constrained automotive and industrial power modules.
Availability
P4SMA75C is available at Aetrix Electronics and suitable for automotive power rail protection, LED driver input stage, and industrial SMPS input filtering requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for P4SMA75C 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in protection devices, rectifiers, and power management components.
The P4SMA75C belongs to TSC's P4SMAx series of surface-mount TVS diodes-engineered specifically for robust, high-reliability transient suppression in automotive, industrial, and lighting applications where ISO 7637-2 compliance and AEC-Q200 readiness are critical.
FAQ
What does the "C" suffix indicate in P4SMA75C?
The "C" suffix in P4SMA75C designates a bidirectional configuration-meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., P4SMA75A), the P4SMA75C has no inherent anode/cathode polarity for clamping; its electrical characteristics apply identically across both terminals, making it ideal for AC-coupled or floating bus protection where voltage polarity reverses.
What is the maximum clamping voltage of P4SMA75C under standard test conditions?
The P4SMA75C has a maximum clamping voltage (VC) of 108V when subjected to a 10/1000μs surge waveform at its rated peak pulse current of 3.8A. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage imposed on the protected circuit during worst-case transient events-ensuring downstream components rated for ≥108V remain within safe operating limits.
Does P4SMA75C meet automotive transient immunity standards?
Yes, the P4SMA75C meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnection and relay bounce), and Pulse 3a/3b (capacitive coupling and switch noise). Its 400W peak pulse power rating, 150°C junction temperature capability, and glass-passivated junction are validated for use in automotive power distribution modules, body control units, and lighting control systems per AEC-Q200 stress testing guidelines.
What is the working stand-off voltage (VWM) of P4SMA75C, and why is it important?
The P4SMA75C has a working stand-off voltage (VWM) of 60.7V-the maximum continuous DC or RMS voltage that can be applied without exceeding 1μA leakage current. This parameter defines the safe operating margin below breakdown (VBR = 67.5–82.5V) and ensures the device remains non-conductive during normal operation while retaining fast response when transients exceed this threshold.
Is P4SMA75C compatible with lead-free reflow soldering processes?
Yes, the P4SMA75C is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its moisture sensitivity level is rated J-STD-020 Level 1-meaning it can be processed using standard IPC/JEDEC profiles (e.g., peak temperature up to 260°C) without pre-baking, supporting high-yield, high-volume SMT assembly in automotive and industrial manufacturing lines.
P4SMA75C 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 60.7V
- Voltage - Breakdown (Min):
- 67.5V
- Voltage - Clamping (Max) @ Ipp:
- 108V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- 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)
P4SMA75C FAQ
1.How can I place an order for P4SMA75C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA75C 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 P4SMA75C reliable?
The price and inventory of P4SMA75C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA75C is usually 5 days.
3.What payment methods are accepted for P4SMA75C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA75C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA75C?
P4SMA75C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA75C 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 P4SMA75C?
For technical support, including P4SMA75C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA75C requirements.
6.How does Aetrix verify that P4SMA75C is sourced from the original manufacturer or authorized distributors?
All P4SMA75C 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 P4SMA75C meets industry standards.
7.What is the process for return or replacement of P4SMA75C?
All P4SMA75C units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA75C, 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 P4SMA75C part is unused and in its original packaging.
Return procedure for P4SMA75C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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