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Diodes Incorporated P4SMAJ64ADF-13
- Part No.:
- P4SMAJ64ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P4SMAJ64ADF-13.pdf
- Description:
- TVS DIODE 64VWM 103VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:8,670
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Product details
Overview
P4SMAJ64ADF-13 from Diodes Incorporated is a 400W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power lines and signal interfaces. It features a reverse standoff voltage of 64 V, clamping voltage of 103 V at 3.9 A peak pulse current, and IEC 61000-4-2 ESD robustness of ±30 kV (air/contact). Used in industrial power supplies and automotive body control modules to safeguard microcontrollers and communication ICs.
For engineers reviewing the P4SMAJ64ADF-13 datasheet, P4SMAJ64ADF-13 pinout, P4SMAJ64ADF-13 application, or P4SMAJ64ADF-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, thermal resistance under PCB layout constraints, and D-FLAT package compatibility with high-density routing.
Technical Context
This TVS operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds 71.1 V (min breakdown), limiting transients to ≤103 V at 3.9 A (10/1000 µs waveform). Its glass-passivated die ensures stable leakage (<1 µA at 64 V) and repeatable clamping performance across temperature.
The D-FLAT package provides low thermal resistance (RθJA = 88 °C/W on 0.4"×0.5" FR-4 pad), enabling reliable 400 W non-repetitive surge handling without derating below +75 °C ambient. Polarity is marked by cathode band; anode connects to ground or return path.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W - Sustains single 10×1000 µs surges up to this level without failure |
| Reverse Standoff Voltage | 64 V - Maximum continuous DC voltage before significant leakage begins |
| Clamping Voltage | 103 V @ 3.9 A - Limits transient voltage seen by downstream ICs during surge events |
| Breakdown Voltage | 71.1–78.6 V @ 1 mA - Confirmed avalanche onset range for design margining |
| ESD Rating | ±30 kV (air/contact) per IEC 61000-4-2 - Protects against human-body-model discharges |
| Thermal Resistance | 88 °C/W (Junction-to-Ambient) - Dictates required copper area for thermal management |
| Capacitance | ~25 pF @ 0 V - Minimal signal distortion in data-line protection applications |
Pinout & Package
Package: D-FLAT (low-profile surface-mount, 2-terminal, cathode-banded). Dimensions: 4.60 mm × 2.80 mm × 1.10 mm (L × W × H), weight ≈ 0.035 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient Current Sink | Connected to protected line; conducts surge current to ground path during overvoltage |
| 2 (Anode) | Reference Node | Typically tied to system ground or low-impedance return; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures long-term stability of breakdown voltage and leakage under humidity and thermal cycling |
| Low-profile D-FLAT package | Reduces board space by >30% vs. SMA; enables placement near connectors and ICs |
| Lead-free, halogen-free, RoHS 3 compliant | Meets IPC-J-STD-020 moisture sensitivity Level 1 and global environmental regulations |
| High ESD immunity | ±30 kV contact discharge tolerance eliminates need for additional ESD stages in many designs |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24 V DC input rail in programmable logic controllers exposed to load dump and inductive switching noise. IC Role / Device Role: Unidirectional TVS placed between input rail and ground to clamp transients before they reach DC-DC converters and MCU power pins. Use Value: Clamps 400 W surges to ≤103 V, maintaining safe operating margin below 120 V-rated input capacitors and regulators. | Use Scenario: LIN bus transceiver power supply line in door module subject to battery disconnect spikes. IC Role / Device Role: Primary overvoltage clamp on VCC rail feeding LIN PHY and microcontroller. Use Value: 64 V standoff allows normal operation during cold-crank (down to ~6 V) while clamping 120 V load-dump events. |
| Telecom Data Line Surge Protection | Medical Diagnostic Equipment Interface |
Use Scenario: RS-485 transceiver power rail in outdoor base station equipment subjected to lightning-induced surges. IC Role / Device Role: Secondary protection stage after gas discharge tube, absorbing residual energy before IC-level protection. Use Value: 25 pF capacitance avoids signal integrity degradation at 10 Mbps; 103 V clamping protects 130 V-rated transceivers. | Use Scenario: USB power delivery line in portable ultrasound probe connected to host console via detachable cable. IC Role / Device Role: Input-side TVS on 5 V VBUS line to prevent ESD damage during hot-plug events. Use Value: ±30 kV ESD rating meets IEC 61000-4-2 Level 4; D-FLAT footprint fits tight space behind USB connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64A-Q | Same 64 V standoff, but 400 W rating tested per 8/20 µs waveform; RθJA = 114 °C/W (larger pad required) | Higher clamping voltage (104 V) and lower thermal efficiency limit use in compact layouts | Select only if legacy SMA footprint compatibility is mandatory and board space permits larger thermal pad |
| 1.5SMC64A | Higher 1500 W rating, DO-214AB package; clamping voltage 104 V @ 14.5 A; RθJA = 50 °C/W | Over-specified power handling increases cost and size; unsuitable for space-constrained designs | Choose only when system-level surge testing requires >400 W capability or existing DO-214AB footprint must be retained |
Compared with SMAJ64A-Q and 1.5SMC64A, P4SMAJ64ADF-13 delivers optimal balance of compact D-FLAT packaging, verified 88 °C/W thermal performance on minimal copper, and precise 103 V clamping-making it preferred for high-density industrial and automotive PCBs where layout area and thermal headroom are constrained.
Availability
P4SMAJ64ADF-13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom data line protection, and medical diagnostic equipment requiring stable component supply and full RoHS 3 compliance.
Supply support for P4SMAJ64ADF-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, surface-mount overvoltage protection in space-constrained industrial and automotive systems where consistent clamping and thermal performance are critical.
FAQ
What is the maximum operating temperature for P4SMAJ64ADF-13?
The device supports continuous operation from –55 °C to +150 °C junction temperature. At +75 °C lead temperature, its steady-state power dissipation is rated at 1.0 W. Derating curves in the datasheet show usable surge capability down to ambient temperatures as low as –40 °C for automotive applications.
Does P4SMAJ64ADF-13 meet AEC-Q200 stress test requirements?
No-P4SMAJ64ADF-13 is not AEC-Q200 qualified. It is a standard industrial-grade TVS. For automotive applications requiring qualification, Diodes offers the AEC-Q200-compliant P4SMAJ64AQ-13 variant, which undergoes extended temperature cycling, humidity bias, and mechanical shock testing per the standard.
Can this TVS be used in bidirectional configurations?
No-P4SMAJ64ADF-13 is unidirectional only. Its schematic symbol and internal structure allow conduction only from cathode to anode during reverse overvoltage. For AC or bidirectional signal line protection, use the complementary P4SMAJ64CA-13 (bidirectional version) with symmetrical clamping in both polarities.
How does the D-FLAT package affect solder reflow profile?
The D-FLAT package uses matte tin annealed terminals compatible with standard lead-free reflow profiles (peak 260 °C, 60–90 sec above 217 °C). Its low mass (0.035 g) and uniform thermal mass reduce risk of tombstoning; recommended stencil aperture is 2.4 mm × 1.0 mm with 0.12 mm thickness for optimal paste release and wetting.
P4SMAJ64ADF-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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 3.9A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D-Flat
P4SMAJ64ADF-13 FAQ
1.How can I place an order for P4SMAJ64ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMAJ64ADF-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 P4SMAJ64ADF-13 reliable?
The price and inventory of P4SMAJ64ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMAJ64ADF-13 is usually 5 days.
3.What payment methods are accepted for P4SMAJ64ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMAJ64ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMAJ64ADF-13?
P4SMAJ64ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMAJ64ADF-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 P4SMAJ64ADF-13?
For technical support, including P4SMAJ64ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMAJ64ADF-13 requirements.
6.How does Aetrix verify that P4SMAJ64ADF-13 is sourced from the original manufacturer or authorized distributors?
All P4SMAJ64ADF-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 P4SMAJ64ADF-13 meets industry standards.
7.What is the process for return or replacement of P4SMAJ64ADF-13?
All P4SMAJ64ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMAJ64ADF-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 P4SMAJ64ADF-13 part is unused and in its original packaging.
Return procedure for P4SMAJ64ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMAJ64ADF-13 Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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