Diodes Incorporated P4SMAJ60ADF-13
- Part No.:
- P4SMAJ60ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P4SMAJ60ADF-13.pdf
- Description:
- TVS DIODE 60VWM 96.8VC D-FLAT
- Quantity:
- Payment:

- Shipping:

Inventory:34,451
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Product details
Overview
P4SMAJ60ADF-13 from Diodes Incorporated is a 400W surface-mount transient voltage suppressor (TVS) diode in D-FLAT package, designed for unidirectional overvoltage protection on DC power rails and signal lines. It features a 60V reverse standoff voltage (VRWM), 66.7–73.7V breakdown voltage (VBR), 96.8V clamping voltage (VC) at 4.1A peak pulse current (IPP), and meets IEC 61000-4-2 ESD immunity (±30kV air/contact).
For engineers reviewing the P4SMAJ60ADF-13 datasheet, P4SMAJ60ADF-13 pinout, P4SMAJ60ADF-13 application, or P4SMAJ60ADF-13 equivalent, key selection criteria include clamping performance under 10×1000µs surge, thermal resistance (RθJA = 88°C/W on 0.4"×0.5" PCB), polarity marking (cathode band), and RoHS-compliant matte tin terminations.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified breakdown range. Its glass-passivated die ensures stable VBR tolerance and low leakage (<1µA at VRWM), while the D-FLAT package enables low-inductance mounting for fast transient response.
It is rated for 400W non-repetitive peak pulse power (PPK) per 10×1000µs waveform, with thermal derating above +25°C ambient. Junction-to-terminal thermal resistance is 39°C/W on a small 0.4"×0.5" FR-4 pad, supporting high-power surge absorption in space-constrained industrial and automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - Sustains single 10×1000µs transients without failure |
| Clamping Voltage (VC) | 96.8 V @ IPP = 4.1 A - Limits downstream voltage stress during surge events |
| Reverse Standoff Voltage (VRWM) | 60 V - Maximum continuous DC operating voltage before conduction begins |
| Breakdown Voltage (VBR) | 66.7–73.7 V @ IT = 1 mA - Tight tolerance ensures predictable turn-on threshold |
| ESD Rating | ±30 kV (air/contact) per IEC 61000-4-2 - Protects against human-body model discharges |
| Thermal Resistance (RθJA) | 88 °C/W - Measured on 0.4"×0.5" FR-4 board; defines safe power dissipation limits |
| Capacitance | 15 pF @ VRWM = 0 V - Low enough for USB 2.0 and CAN bus signal line protection |
Pinout & Package
Package: D-FLAT (low-profile surface-mount), molded plastic case (UL 94V-0), cathode indicated by band. Dimensions: 4.65 mm × 2.80 mm × 1.10 mm (L × W × H), weight ≈ 0.035 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Anode of internal PN junction | Connected to protected line; conducts surge current to ground when clamped |
| 2 (Anode) | Cathode of internal PN junction | Typically tied to system ground; completes clamping path during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures long-term VBR stability and low parameter drift across temperature and life cycles |
| Low-profile D-FLAT package | Reduces board area usage by >40% vs. SMA; supports automated placement and reflow |
| Lead-free, halogen-free "Green" finish | Meets RoHS 3 (2015/863/EU) and JEDEC J-STD-020 moisture sensitivity Level 1 |
| High ESD robustness | Withstands ±30 kV contact discharge - eliminates need for secondary ESD components in many interfaces |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC input channels on programmable logic controllers exposed to inductive switching transients and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between input terminal and ground to clamp transients before they reach input conditioning circuitry. Use Value: 96.8V clamping ensures microcontroller GPIOs and analog front-ends remain below absolute maximum ratings during 400W surges. | Use Scenario: LIN bus and sensor supply lines in body control modules subject to load dump and ISO 7637-2 pulse 1/2a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V rail feeding door lock actuators and interior lighting drivers. Use Value: 4.1A peak pulse current rating handles ISO 7637-2 Pulse 1 (−150V, 50Ω, 2Ω) without degradation. |
| USB-C Power Delivery Port | Smart Meter Communication Interface |
Use Scenario: VBUS line protection in USB-C PD ports where 20V operation requires precise clamping margin above nominal voltage. IC Role / Device Role / Timing Role: Secondary TVS after primary common-mode choke, guarding against ESD and hot-swap transients. Use Value: 15pF capacitance avoids signal integrity issues on 10Gbps USB-C lanes while maintaining 60V standoff. | Use Scenario: RS-485 transceiver protection in utility smart meters installed in electrically noisy substations. IC Role / Device Role / Timing Role: Line-side TVS on differential pair, referenced to local ground plane to suppress common-mode surges. Use Value: 88°C/W RθJA allows reliable operation at 70°C ambient with no forced airflow, meeting ANSI C12.1 thermal requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ60A-Q | Same VRWM (60V), slightly higher VC (100V), same 400W rating, but AEC-Q200 qualified | Required for automotive-grade designs needing qualification evidence | Select if automotive PPAP documentation and extended temperature validation (-55°C to +150°C) are mandatory |
| 1.5SMC60A | Higher PPK (1500W), larger SMC package (7.1mm × 6.2mm), VC = 96.8V, same VBR range | Used where higher surge energy handling is needed and board space permits larger footprint | Choose when protecting against ISO 7637-2 Pulse 5a (load dump) requiring >1000W capability |
Compared with SMAJ60A-Q and 1.5SMC60A, P4SMAJ60ADF-13 offers optimal balance of compact D-FLAT footprint, 400W surge capacity, and industrial-grade reliability-ideal for space-constrained 24V/48V systems where AEC-Q200 is not required and SMC size is prohibitive.
Availability
P4SMAJ60ADF-13 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, USB-C power delivery ports, and smart meter communication interfaces requiring stable component supply and consistent surge performance across production batches.
Supply support for P4SMAJ60ADF-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The P4SMAJ series belongs to Diodes' transient voltage suppression portfolio, engineered specifically for high-reliability industrial and automotive applications demanding low-clamp, low-capacitance, and lead-free compliance in ultra-compact packages.
FAQ
What is the maximum operating temperature for P4SMAJ60ADF-13?
The device supports continuous operation from −55°C to +150°C junction temperature. Its thermal resistance (RθJA = 88°C/W on 0.4"×0.5" FR-4) means it can sustain full 400W surge at +25°C ambient, but must be derated linearly above that-e.g., to ~280W at +75°C ambient per Figure 1 in DS39017.
Does P4SMAJ60ADF-13 support bidirectional transient suppression?
No-it is a unidirectional TVS diode, optimized for DC rail protection where polarity is fixed. Its schematic shows cathode (Pin 1) and anode (Pin 2); reverse-bias operation clamps positive transients to ground. For AC or bidirectional signal lines, a symmetric (bidirectional) variant like P4SMAJ60CA-13 would be required.
How does the D-FLAT package affect PCB layout and thermal performance?
The D-FLAT package uses a flat, dual-terminal footprint with no leads, enabling minimal parasitic inductance and efficient heat transfer through copper pads. Recommended pad layout (per Diodes' package outline) uses 0.2"×0.25" copper areas to achieve the 88°C/W RθJA rating-smaller pads increase thermal resistance and reduce surge survivability.
Is P4SMAJ60ADF-13 compatible with lead-free reflow profiles?
Yes-the matte tin annealed finish over copper leadframe is fully compatible with standard lead-free reflow profiles (peak 260°C, per JEDEC J-STD-020). Its moisture sensitivity level is Grade 1, meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to assembly.
P4SMAJ60ADF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 2-SMD, Flat Leads
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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:
- D-Flat
P4SMAJ60ADF-13 FAQ
1.How can I place an order for P4SMAJ60ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMAJ60ADF-13 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 P4SMAJ60ADF-13 reliable?
The price and inventory of P4SMAJ60ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMAJ60ADF-13 is usually 5 days.
3.What payment methods are accepted for P4SMAJ60ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMAJ60ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMAJ60ADF-13?
P4SMAJ60ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMAJ60ADF-13 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 P4SMAJ60ADF-13?
For technical support, including P4SMAJ60ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMAJ60ADF-13 requirements.
6.How does Aetrix verify that P4SMAJ60ADF-13 is sourced from the original manufacturer or authorized distributors?
All P4SMAJ60ADF-13 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 P4SMAJ60ADF-13 meets industry standards.
7.What is the process for return or replacement of P4SMAJ60ADF-13?
All P4SMAJ60ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMAJ60ADF-13, 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 P4SMAJ60ADF-13 part is unused and in its original packaging.
Return procedure for P4SMAJ60ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMAJ60ADF-13 Tags

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Diodes Incorporated

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