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Taiwan Semiconductor Corporation P4SMA36
- Part No.:
- P4SMA36
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36.pdf
- Description:
- 400W, 36V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:6,249
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Product details
Overview
P4SMA36 from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power lines and signal paths. It features a 32.4–39.6 V breakdown voltage (VBR), 29.1 V working stand-off voltage (VWM), 52.0 V clamping voltage (VC) at 8.0 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 P4SMA36 datasheet, P4SMA36 pinout, P4SMA36 application, or P4SMA36 equivalent, key selection criteria include its DO-214AC (SMA) package compatibility, unidirectional polarity marking, sub-1 ps response time, <1 µA reverse leakage at VWM, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics surge immunity.
Technical Context
The P4SMA36 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified VBR range (32.4–39.6 V @ 1.0 mA). Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 µA @ 29.1 V), while its 150 °C maximum junction temperature supports operation in thermally constrained PCB layouts.
It delivers 400 W peak pulse power handling per 10/1000 µs waveform, with clamping performance validated at 52.0 V @ 8.0 A - enabling reliable suppression of ESD, lightning-induced transients, and load-dump spikes in industrial and automotive power systems without forward conduction interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 32.4 V / 39.6 V @ 1.0 mA - defines precise avalanche initiation threshold for repeatable overvoltage triggering |
| VWM | 29.1 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 52.0 V @ 8.0 A (10/1000 µs) - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 400 W - peak transient power dissipation capability without failure |
| IR @ VWM | <1 µA - ultra-low leakage preserves efficiency in high-impedance bias or sensing circuits |
| Response time | <1.0 ps - enables suppression of nanosecond-scale ESD events before downstream IC damage |
| TJ max | +150 °C - supports placement near heat-generating components like MOSFETs or inductors |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, unidirectional configuration with cathode band marking. Weight: 0.060 g. Moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts only during forward surge or fault conditions |
| Cathode (banded end) | Reverse-biased protection terminal | Connected to protected line (e.g., +12 V rail); avalanches into conduction when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and lifetime |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) in automotive ECUs |
| DO-214AC (SMA) footprint | Enables automated SMT placement and reflow compatibility with standard 0.050" pitch land patterns |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation required for safety-critical industrial and transportation applications |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and eliminates whisker growth risk per JESD 201 Class 2 |
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 turn-off voltage spikes and cross-conduction transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input/output rails to clamp fast-rising transients before they reach PWM controllers or synchronous rectifiers. Use Value: Prevents cumulative gate oxide stress and output capacitor overvoltage, extending SMPS reliability beyond 100,000 cycles under 400 W surge loads. | Use Scenario: Safeguarding isolated 5 V or 3.3 V point-of-load regulators in motor control modules and PLC I/O cards. IC Role / Device Role / Timing Role: Standoff-rated TVS on secondary-side VOUT rail, activated only during load-dump or hot-swap events exceeding 29.1 V. Use Value: Maintains regulated output integrity during 8.0 A surges, avoiding brownout resets or latch-up in microcontrollers powered by the DC/DC stage. |
| Automotive Lighting Module | Industrial Adapter Input Stage |
Use Scenario: Transient suppression on LED driver inputs exposed to battery line noise and alternator ripple in headlamp control units. IC Role / Device Role / Timing Role: Primary-line TVS between battery feed and buck controller IC, oriented anode-to-GND to block reverse faults. Use Value: Withstands repetitive 10/1000 µs pulses up to 400 W without degradation, meeting OEM requirements for 15-year service life. | Use Scenario: Input-stage surge guard in universal AC/DC adapters used in factory automation sensors and HMI panels. IC Role / Device Role / Timing Role: First-line defense against line surges entering via IEC 61000-4-5 Coupling/Decoupling Networks, placed upstream of bridge rectifier. Use Value: Clamps 52.0 V maximum during 1 kV/0.5 kA surges, preventing rectifier breakdown and ensuring adapter uptime in noisy plant environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A (Bourns) | Same DO-214AA (SMB) package; 36 V nominal VBR; 58.1 V VC @ 6.9 A; 600 W PPPM | Higher clamping voltage (+6.1 V) and larger footprint - less suitable for space-constrained layouts requiring DO-214AC | Select SMBJ36A only if higher surge margin is needed and board area allows SMB package |
| 1.5SMC36A (ON Semiconductor) | DO-214AB (SMC) package; 36 V nominal VBR; 58.1 V VC @ 6.9 A; 1500 W PPPM | Triple power rating but 3× larger footprint - intended for high-energy industrial mains protection, not compact DC rails | Choose 1.5SMC36A only for >1 kW surge environments where SMA size is insufficient |
Compared with SMBJ36A and 1.5SMC36A, the P4SMA36 offers optimal balance of 400 W surge capability, minimal DO-214AC footprint, and 52.0 V clamping - making it preferred for space-limited 12–48 V DC systems where precise voltage limiting is critical.
Availability
P4SMA36 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and automotive lighting modules requiring stable component supply with full traceability and lifecycle management.
Supply support for P4SMA36 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 for industrial and automotive markets.
The P4SMA36 belongs to TSC's P4SMAxx series of 400 W surface-mount TVS diodes - engineered specifically for cost-sensitive, high-volume DC power line protection with stringent ISO 7637-2 compliance and J-STD-020 Level 1 moisture resistance.
FAQ
What is the polarity configuration of the P4SMA36?
The P4SMA36 is a unidirectional TVS diode with cathode band marking indicating the banded end. It conducts in reverse bias above VBR and blocks forward current up to 3.5 V. This configuration makes P4SMA36 ideal for protecting positive DC rails where polarity is fixed and reverse faults must be blocked.
Does the P4SMA36 meet automotive surge immunity standards?
Yes, the P4SMA36 meets ISO 7637-2 requirements for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection and load dump), and Pulse 3a/3b (capacitive coupling). Its 400 W peak pulse power rating and 52.0 V clamping voltage at 8.0 A ensure robust protection in automotive body control modules and lighting ECUs.
What is the maximum junction temperature rating for the P4SMA36?
The P4SMA36 has a maximum junction temperature (TJ) rating of +150 °C, verified per absolute maximum ratings table. This allows reliable operation in high-temperature environments such as engine compartments or enclosed power enclosures - provided thermal design maintains junction temperature below this limit during surge events.
How does the P4SMA36 compare to the P4SMA36A variant?
The P4SMA36A has tighter VBR tolerance (34.2–37.8 V vs. 32.4–39.6 V), higher VWM (30.8 V vs. 29.1 V), and lower VC (49.9 V vs. 52.0 V) at same IPPM. The P4SMA36 offers broader voltage margin for cost-sensitive designs; P4SMA36A suits precision-clamp applications where tighter regulation is mandatory.
Is the P4SMA36 RoHS and halogen-free compliant?
Yes, the P4SMA36 is RoHS compliant and halogen-free per IEC 61249-2-21. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the UL 94V-0 molding compound ensures flame resistance - satisfying environmental and safety mandates for industrial and medical-grade equipment.
P4SMA36 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):
- 29.1V
- Voltage - Breakdown (Min):
- 32.4V
- Voltage - Clamping (Max) @ Ipp:
- 52V
- Current - Peak Pulse (10/1000µs):
- 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)
P4SMA36 FAQ
1.How can I place an order for P4SMA36 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36 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 P4SMA36 reliable?
The price and inventory of P4SMA36 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA36 is usually 5 days.
3.What payment methods are accepted for P4SMA36?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36?
P4SMA36 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36 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 P4SMA36?
For technical support, including P4SMA36 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36 requirements.
6.How does Aetrix verify that P4SMA36 is sourced from the original manufacturer or authorized distributors?
All P4SMA36 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 P4SMA36 meets industry standards.
7.What is the process for return or replacement of P4SMA36?
All P4SMA36 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36, 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 P4SMA36 part is unused and in its original packaging.
Return procedure for P4SMA36:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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