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Taiwan Semiconductor Corporation P4SMA62
- Part No.:
- P4SMA62
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA62.pdf
- Description:
- 400W, 62V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,571
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Product details
Overview
P4SMA62 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 50.2 V working stand-off voltage (VWM), 55.8–68.2 V breakdown voltage (VBR) at 1 mA, 89.0 V maximum clamping voltage (VC) under 10/1000 μs surge, 400 W peak pulse power rating, and DO-214AC (SMA) package - used in switching mode power supplies and on-board DC/DC converters.
For engineers reviewing the P4SMA62 datasheet, P4SMA62 pinout, P4SMA62 application, or P4SMA62 equivalent, key selection criteria include clamping performance at rated surge current, leakage current below 1 µA at VWM, compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b, and suitability for automated SMT assembly in industrial and automotive power systems.
Technical Context
The P4SMA62 operates as a unidirectional avalanche diode, conducting only in reverse bias above its breakdown threshold to shunt transient energy to ground. Its glass-passivated junction ensures stable VBR tolerance and low leakage, while fast response time (<1.0 ps) enables effective suppression of ESD and load-dump transients.
Rated for 150 °C maximum junction temperature and -55 °C to +150 °C operating range, it supports high-reliability deployment in thermally demanding environments. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, confirming suitability for IPC-compliant board assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 50.2 V - Maximum continuous reverse voltage before significant leakage; defines safe operating DC rail margin. |
| VBR min/max | 55.8 V / 68.2 V at 1 mA - Tight breakdown window ensures predictable turn-on across production lots. |
| VC @ IPPM | 89.0 V at 4.7 A (10/1000 μs) - Clamping voltage directly limits downstream IC stress during surge events. |
| PPPM | 400 W - Peak pulse power handling capability per single non-repetitive 10/1000 μs waveform. |
| IR @ VWM | <1 µA - Ultra-low leakage preserves efficiency in high-impedance or battery-backed circuits. |
| Package | DO-214AC (SMA) - Standardized SMT outline enabling compatibility with JEDEC-compliant pick-and-place and reflow profiles. |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability requirements and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected circuit's ground or low-side return path; conducts during forward surge (e.g., reverse polarity). |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., +12 V rail); avalanches into conduction when transient exceeds VBR, diverting current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| Clamping voltage ≤89.0 V at 4.7 A | Provides defined overvoltage ceiling for sensitive downstream regulators and controllers in 48 V or 36 V systems. |
| ISO 7637-2 compliant (Pulse 1/2a/2b/3a/3b) | Validated for automotive-level transient immunity without external filtering or derating. |
| Moisture sensitivity level 1 (J-STD-020) | Enables standard SMT assembly without baking or special handling prior to reflow. |
| RoHS & halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for industrial and consumer electronics manufacturing. |
Applications
| Switching Mode Power Supply (SMPS) | On-Board DC/DC Converter |
|---|---|
Use Scenario: Protection of primary-side MOSFET gate drivers and secondary-side synchronous rectifiers against flyback spikes and cross-conduction transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed across input/output rails or gate-source paths. Use Value: Limits voltage overshoot to ≤89.0 V during 400 W surges, preventing gate oxide rupture and ensuring >100,000-cycle reliability per IEC 61000-4-5. |
Use Scenario: Input rail protection in point-of-load (POL) converters powering FPGAs, microcontrollers, or sensors in embedded control units. IC Role / Device Role / Timing Role: Standoff protector between upstream 12–48 V bus and downstream buck regulator input. Use Value: Maintains <1 µA leakage at 50.2 V, minimizing quiescent loss while clamping load-dump transients per ISO 7637-2 Pulse 5a. |
| Lighting Application | Adapter |
Use Scenario: Overvoltage suppression in LED driver front-ends exposed to mains-coupled surges or hot-plug events. IC Role / Device Role / Timing Role: Primary-side transient suppressor placed across bulk capacitor terminals. Use Value: Withstands 400 W pulses without degradation, preserving luminous output stability and extending driver lifetime beyond 50,000 hours. |
Use Scenario: Secondary-side protection in AC/DC wall adapters supplying USB-C PD or legacy 5–24 V outputs. IC Role / Device Role / Timing Role: Output rail clamp preventing damage to connected devices during output short-circuit recovery or no-load transients. Use Value: Delivers 89.0 V clamping at 4.7 A with <1 µA leakage, enabling compact design without compromising safety certification margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60A (Bourns) | Bidirectional variant; 60 V VWM, 66.7–73.3 V VBR, 96.8 V VC @ 4.1 A; DO-214AA package. | Supports AC-coupled or floating-rail protection where bidirectional clamping is required. | Select SMBJ60A only if system-level transients occur in both polarities; P4SMA62 offers lower VC and tighter VBR tolerance for unidirectional DC rails. |
| 1.5SMC62A (ON Semiconductor) | Same VWM/VBR/VC specs; DO-214AB package (larger footprint, higher thermal mass); 1.5 kW rating but same 400 W derated curve. | Better thermal dissipation in high-ambient or high-duty-cycle surge environments. | Choose 1.5SMC62A when board layout allows larger SMA footprint and sustained surge duty exceeds 1 Hz; P4SMA62 prioritizes space-constrained SMT designs. |
Compared with SMBJ60A and 1.5SMC62A, the P4SMA62 delivers optimal clamping performance (89.0 V) in the smallest standardized SMT TVS outline (DO-214AC), making it preferred for dense PCB layouts in SMPS and DC/DC modules where unidirectional protection suffices and leakage must remain below 1 µA.
Availability
P4SMA62 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for P4SMA62 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 TVS diodes, rectifiers, and power management components since 1979.
The P4SMA62 belongs to TSC's P4SMA series of 400 W surface-mount TVS diodes, engineered specifically for high-reliability transient suppression in automotive, industrial, and consumer power systems with stringent ISO 7637-2 compliance requirements.
FAQ
What is the maximum clamping voltage of the P4SMA62 under standard surge conditions?
The P4SMA62 has a maximum clamping voltage (VC) of 89.0 V when subjected to a 10/1000 μs impulse waveform at its rated peak pulse current of 4.7 A. This value is measured per ANSI/IEEE C62.35 and confirmed in TSC's official datasheet revision S2102. The P4SMA62 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C), ensuring consistent protection in thermally aggressive environments.
Is the P4SMA62 unidirectional or bidirectional, and how is polarity marked?
The P4SMA62 is a unidirectional TVS diode, with cathode indicated by a band on the DO-214AC (SMA) package body. Its electrical characteristics - including VWM, VBR, and VC - apply only in reverse bias; forward conduction follows standard silicon diode behavior (VF ≈ 3.5 V at 25 A). Bidirectional variants in the same family use the "CA" suffix (e.g., P4SMA62CA), which the P4SMA62 does not carry.
Does the P4SMA62 meet automotive transient immunity standards?
Yes, the P4SMA62 meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a (sudden load dump interruption), Pulse 2b (supply line interruption), Pulse 3a (capacitive coupled noise), and Pulse 3b (inductive coupled noise). This compliance is explicitly stated in the TSC datasheet and verified via standardized test waveforms - confirming the P4SMA62's suitability for 12 V and 24 V automotive subsystems without additional filtering.
What is the moisture sensitivity level (MSL) and reflow profile compatibility for the P4SMA62?
The P4SMA62 is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and processed using standard lead-free reflow profiles without pre-baking. Its matte tin-plated leads comply with J-STD-002 for solderability, and the DO-214AC package withstands peak temperatures up to 260 °C for 30 seconds - fully compatible with IPC-A-610 Class 2 and Class 3 assembly requirements for the P4SMA62.
How does the P4SMA62 compare to the P4SMA62A variant?
The P4SMA62A offers tighter VBR tolerance (58.9–65.1 V vs. 55.8–68.2 V for P4SMA62) and slightly higher VWM (53.0 V vs. 50.2 V), resulting in lower leakage and improved margin against false triggering. However, its clamping voltage is 85.0 V - 4.0 V lower than the P4SMA62's 89.0 V - making the P4SMA62 more appropriate where higher standoff is needed, while the P4SMA62A suits precision-clamp applications. Both share identical package, power rating, and thermal specs.
P4SMA62 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):
- 50.2V
- Voltage - Breakdown (Min):
- 55.8V
- Voltage - Clamping (Max) @ Ipp:
- 89V
- Current - Peak Pulse (10/1000µs):
- 4.7A
- 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)
P4SMA62 FAQ
1.How can I place an order for P4SMA62 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA62 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 P4SMA62 reliable?
The price and inventory of P4SMA62 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA62 is usually 5 days.
3.What payment methods are accepted for P4SMA62?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA62 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA62?
P4SMA62 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA62 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 P4SMA62?
For technical support, including P4SMA62 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA62 requirements.
6.How does Aetrix verify that P4SMA62 is sourced from the original manufacturer or authorized distributors?
All P4SMA62 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 P4SMA62 meets industry standards.
7.What is the process for return or replacement of P4SMA62?
All P4SMA62 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA62, 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 P4SMA62 part is unused and in its original packaging.
Return procedure for P4SMA62:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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