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Diodes Incorporated P6SMAJ24ADF-13
- Part No.:
- P6SMAJ24ADF-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- 2-SMD, Flat Leads
- Datasheet:
-
P6SMAJ24ADF-13.pdf
- Description:
- TVS DIODE 24VWM 38.9VC D-FLAT
- Quantity:
- Payment:
- Shipping:
Inventory:9,878
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Product details
Overview
P6SMAJ24ADF-13 from Diodes Incorporated is a 600W surface-mount transient voltage suppressor (TVS) diode designed for unidirectional overvoltage protection in DC power rails and signal lines. It features a 24V reverse standoff voltage (VRWM), 26.7–30.7V breakdown range at 1mA, 38.9V clamping voltage at 15.4A peak pulse current, and D-FLAT package for space-constrained PCB layouts-used in industrial power supplies and automotive body control modules.
For engineers reviewing the P6SMAJ24ADF-13 datasheet, P6SMAJ24ADF-13 pinout, P6SMAJ24ADF-13 application, or P6SMAJ24ADF-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC tolerance, thermal resistance under board layout constraints, IEC 61000-4-5 surge compliance, and RoHS/Green compliance for export-sensitive designs.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device triggered by reverse-biased avalanche breakdown above VRWM. Its glass-passivated junction ensures stable leakage (<1µA at 24V) and repeatable clamping performance across temperature (–55°C to +150°C).
The device responds to 10/1000µs transients with sub-nanosecond turn-on and sustains 600W non-repetitive peak pulse power. Thermal design relies on low RθJA (92°C/W on 0.4"×0.5" pad), enabling robust surge handling without external heatsinking in compact power interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Withstands IEC 61000-4-5 Level 4 (4kV/2Ω) surges without failure when properly mounted. |
| Reverse Standoff Voltage | 24V - Maximum continuous DC or RMS voltage before significant leakage; sets upper limit for protected rail. |
| Clamping Voltage | 38.9V @ 15.4A - Limits transient voltage seen by downstream ICs; must be below absolute max rating of protected device. |
| Breakdown Voltage | 26.7–30.7V @ 1mA - Tight VBR window ensures predictable turn-on and avoids false triggering near operating voltage. |
| Leakage Current | ≤1.0µA @ 24V - Minimizes standby power loss and avoids interference in high-impedance sensing circuits. |
| Package | D-FLAT - 4.65mm × 2.80mm footprint with 0.9–1.1mm height; optimized for automated SMT assembly and thermal conduction via exposed cathode pad. |
Pinout & Package
Package: D-FLAT surface-mount package with cathode band marking; molded plastic case (UL 94V-0), matte tin-plated copper leadframe, polarity indicated by black band on cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Transient current sink node | Connected to protected line; carries full surge current during clamping; requires low-inductance trace to ground plane. |
| 2 (Anode) | Reference/ground return | Typically tied to system ground or low-impedance return path; forms current loop with cathode during transient event. |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables single-device protection against severe lightning-induced surges per IEC 61000-4-5, reducing need for cascaded protection stages. |
| Glass-passivated die | Ensures long-term reliability and stable electrical parameters under thermal cycling and humidity exposure in industrial environments. |
| Low-profile D-FLAT package | Reduces board area by >30% vs. SMA; improves airflow and allows placement near connectors or edge-mounted I/O ports. |
| RoHS & Halogen-free | Complies with EU RoHS 2 and JEDEC J-STD-709B; eliminates brominated flame retardants and antimony compounds (<1000ppm). |
Applications
| Industrial PLC I/O Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC input terminals on programmable logic controller modules exposed to inductive switching transients from solenoids and relays. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between input rail and chassis ground to clamp EFT bursts and load-dump spikes. Use Value: Clamps transients to ≤38.9V within nanoseconds, protecting downstream LDOs and microcontrollers rated for 36V absolute max. |
Use Scenario: LIN bus power supply line in door module electronics subject to battery dump events and ISO 7637-2 pulse 5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12V/24V auxiliary rail feeding LIN transceivers and window motor drivers. Use Value: Withstands 600W pulses without degradation, maintaining <1µA leakage to avoid battery drain in sleep mode. |
| Telecom Power Interface | Medical Equipment DC Input |
Use Scenario: 24V PoE-powered remote radio unit with external DC jack susceptible to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage TVS on DC input before DC-DC converter; coordinated with upstream GDT for multi-level protection. Use Value: Fast response (<1ns) and low clamping enable use with wide-input buck converters (e.g., 4.5–36V), preserving headroom. |
Use Scenario: Auxiliary 24V DC input on patient monitor mainboard requiring low-leakage, high-reliability surge suppression per IEC 60601-1. IC Role / Device Role / Timing Role: Safety-critical overvoltage limiter on isolated power entry; certified for use in Class II medical devices. Use Value: Halogen-free and RoHS-compliant construction meets medical regulatory requirements; 150°C max junction temp supports sealed enclosure operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-Q | Same 24V VRWM, but SMA package (larger footprint, higher RθJA = 115°C/W); 600W rating confirmed. | Less suitable for ultra-thin or high-density boards; better thermal margin on large pads. | Select when board real estate allows larger package and thermal management prioritizes pad size over profile. |
| 1.5SMC24A | Higher 1500W rating, DO-214AB package; clamping voltage 38.9V same, but 1.5x larger footprint and 2.5g weight. | Used where higher surge immunity is required (e.g., outdoor telecom cabinets), not space-constrained designs. | Choose only if 600W is insufficient and mechanical mounting permits larger case. |
Compared with SMAJ24A-Q and 1.5SMC24A, P6SMAJ24ADF-13 delivers identical electrical protection in a 30% smaller footprint and 70% lower mass, making it optimal for modern compact, thermally constrained, and weight-sensitive applications like automotive ECUs and portable medical devices.
Availability
P6SMAJ24ADF-13 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive body control modules, and telecom power interface designs requiring stable component supply, consistent parametric performance, and full RoHS/Green compliance.
Supply support for P6SMAJ24ADF-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.
The P6SMAJ series belongs to Diodes' transient voltage suppressor product line, engineered specifically for high-power, low-profile surge protection in space-constrained and thermally demanding applications-emphasizing fast response, tight parameter distribution, and green manufacturing.
FAQ
What is the maximum allowable PCB pad size for optimal thermal performance of P6SMAJ24ADF-13?
For best thermal performance, use the recommended 0.4" × 0.5" (10.2mm × 12.7mm) copper pad per the datasheet's Note 8, achieving RθJA = 92°C/W. Smaller pads increase junction temperature rise during surge events and may reduce lifetime under repeated stress. Pad dimensions must maintain ≥0.2mm soldermask-defined clearance to adjacent traces.
Can P6SMAJ24ADF-13 be used in bidirectional configurations?
No-P6SMAJ24ADF-13 is a unidirectional TVS diode with anode and cathode terminals explicitly defined. Its schematic symbol and internal structure support only reverse-bias clamping. For bidirectional protection, use a dedicated bidirectional part such as P6SMBJ24CA or pair two unidirectional devices in series opposition.
How does the 1.0mA test current affect breakdown voltage specification?
The 1.0mA IT defines the standardized condition for measuring VBR (26.7–30.7V). At this low current, the device exhibits sharp, repeatable avalanche onset-critical for ensuring consistent clamping behavior across production lots and temperature ranges. Higher test currents would shift VBR upward and mask early-turn-on characteristics needed for precision protection.
Is P6SMAJ24ADF-13 qualified for automotive AEC-Q200 stress testing?
No-P6SMAJ24ADF-13 is not AEC-Q200 qualified. It is rated for industrial temperature range (–55°C to +150°C) and meets JEDEC moisture sensitivity level 1, but lacks the extended reliability testing (e.g., temperature cycling, board flex, accelerated life) required for automotive qualification. For AEC-Q200 applications, consider Diodes' AEC-Q200–qualified SMAJ24A-Q or SMCJ24A-Q series.
P6SMAJ24ADF-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 2-SMD, Flat Leads
- Series:
- SMAJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 15.4A
- Power - Peak Pulse:
- 600W
- 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
P6SMAJ24ADF-13 FAQ
1.How can I place an order for P6SMAJ24ADF-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMAJ24ADF-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 P6SMAJ24ADF-13 reliable?
The price and inventory of P6SMAJ24ADF-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMAJ24ADF-13 is usually 5 days.
3.What payment methods are accepted for P6SMAJ24ADF-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMAJ24ADF-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMAJ24ADF-13?
P6SMAJ24ADF-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMAJ24ADF-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 P6SMAJ24ADF-13?
For technical support, including P6SMAJ24ADF-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMAJ24ADF-13 requirements.
6.How does Aetrix verify that P6SMAJ24ADF-13 is sourced from the original manufacturer or authorized distributors?
All P6SMAJ24ADF-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 P6SMAJ24ADF-13 meets industry standards.
7.What is the process for return or replacement of P6SMAJ24ADF-13?
All P6SMAJ24ADF-13 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMAJ24ADF-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 P6SMAJ24ADF-13 part is unused and in its original packaging.
Return procedure for P6SMAJ24ADF-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMAJ24ADF-13 Tags
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