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Diodes Incorporated 1N4448HLP-7
- Part No.:
- 1N4448HLP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
1N4448HLP-7.pdf
- Description:
- DIODE GEN PURP 80V 125MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:89,949
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Product details
Overview
1N4448HLP-7 from Diodes Incorporated is a surface-mount fast-switching silicon switching diode in X1-DFN1006-2 package, rated for 80 V peak repetitive reverse voltage, 300 mA forward current, and 4.0 ns reverse recovery time. It delivers low forward voltage (0.72 V at 10 mA) and ultra-low reverse leakage (25 nA at 20 V), making it suitable for high-speed signal routing and clamping in portable battery-powered equipment.
For engineers reviewing the 1N4448HLP-7 datasheet, 1N4448HLP-7 pinout, 1N4448HLP-7 application, or 1N4448HLP-7 equivalent, key selection criteria include its AEC-Q101 qualification, 100°C/W thermal resistance under standard FR-4 layout, cathode-bar marking, and compatibility with automated SMT assembly for space-constrained consumer and industrial PCBs.
Technical Context
This diode operates as a unidirectional, low-capacitance (3.0 pF at 0.5 V) PN junction switch optimized for high-frequency signal integrity. Its 4.0 ns trr and 0.72 V VF at 10 mA enable clean edge transitions in digital logic interfaces and ESD protection networks.
The device uses NiPdAu-plated copper leadframe terminals and green molding compound compliant with RoHS 3 and halogen-free standards. Its X1-DFN1006-2 footprint (1.0 × 0.6 mm) supports dense layout while maintaining thermal performance up to +150°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRM | 100 V non-repetitive peak reverse voltage - defines maximum transient overvoltage tolerance without avalanche breakdown |
| VRRM | 80 V peak repetitive reverse voltage - sets continuous blocking capability in DC/AC clamp or flyback circuits |
| IFM | 300 mA peak forward current - supports short-duration surge handling in signal line protection |
| trr | 4.0 ns reverse recovery time - enables operation up to ~85 MHz switching frequency with minimal switching loss |
| CT | 3.0 pF total capacitance at 0.5 V - minimizes signal distortion in RF and high-speed digital I/O paths |
| VF @ 10 mA | 0.72 V forward voltage - reduces conduction loss and self-heating in low-power bias networks |
| IR @ 80 V | 100 nA reverse leakage - preserves battery life in always-on sensing nodes and sleep-mode circuits |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact 1.0 mm × 0.6 mm, 0.5 mm height, 2-terminal surface-mount plastic package with exposed thermal pad (not electrically connected). Cathode identified by bar marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode) | Forward current entry point | Connected to lower-potential side of circuit; requires proper thermal pad clearance per Diodes Inc. layout guidelines |
| Terminal 2 (Cathode) | Forward current exit / reverse blocking node | Marked with bar; ties to higher-potential rail or signal return path; critical for polarity-sensitive clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified reliability | Validated for automotive-grade temperature cycling, humidity, and mechanical stress - suitable for under-hood and infotainment modules |
| Green, halogen-free construction | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies strict environmental compliance for global OEM supply chains |
| Low thermal resistance | RθJA = 500 °C/W on FR-4 with recommended pad layout - enables stable operation at 150°C junction temperature |
| Ultra-small footprint | 1.0 × 0.6 mm body size - saves >60% board area vs. SOD-123 and enables 0201-class density in wearables and IoT sensors |
Applications
| High-Speed Logic Clamping | Battery Protection Circuitry |
|---|---|
Use Scenario: Preventing overshoot/undershoot in 3.3 V CMOS I/O lines during hot-plug or level-shifting events. IC Role / Device Role / Timing Role: Fast-switching clamp diode placed between I/O pin and VCC/GND rails to shunt transients within 4 ns. Use Value: 3.0 pF capacitance avoids signal integrity degradation; 0.72 V VF ensures clamping threshold stays below logic high threshold. | Use Scenario: Reverse-polarity protection in single-cell Li-ion charger input stage. IC Role / Device Role / Timing Role: Series-connected anode-to-battery cathode, blocking reverse current during incorrect insertion. Use Value: 100 nA IR at 80 V prevents measurable standby drain; 300 mA IFM handles inrush during connection. |
| RF Signal Routing Switch | Low-Power Sensor Bias Network |
Use Scenario: Transmit/receive path selection in sub-GHz ISM band transceivers using PIN-diode-like AC coupling. IC Role / Device Role / Timing Role: Bidirectional RF switch controlled by DC bias; leverages low CT and fast trr for minimal insertion loss. Use Value: 4.0 ns trr supports clean switching at 27 MHz carrier; 3.0 pF CT limits impedance mismatch across 2.4 GHz bandwidth. | Use Scenario: Providing stable bias current to MEMS microphone or Hall-effect sensor in wearable health monitors. IC Role / Device Role / Timing Role: Forward-biased current source element in constant-current generator topology. Use Value: 0.72 V VF ensures predictable drop across wide temperature range; 25 nA IR at 20 V eliminates error drift in µA-level bias paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast-switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54C-7-F | Lower VRRM (30 V), dual-common-cathode configuration, 1.0 ns trr | Optimized for low-voltage (<5 V) logic clamping; not rated for 80 V blocking | Select when operating voltage ≤3.3 V and dual-diode integration reduces component count |
| 1N4148W-7-F | Same VRRM (100 V), larger SOD-123 package (3.7 × 1.6 mm), 4 ns trr | Higher RθJA (~300 °C/W), less suitable for ultra-dense layouts | Choose when legacy footprint compatibility or higher surge rating (4 A IFSM) is prioritized over size |
Compared with BAT54C-7-F and 1N4148W-7-F, the 1N4448HLP-7 uniquely balances AEC-Q101 qualification, 1.0 mm² footprint, and 80 V blocking in a green-compliant DFN - ideal where automotive reliability meets miniaturization demands.
Availability
1N4448HLP-7 is available at Aetrix Electronics and suitable for high-speed logic clamping, battery protection circuitry, and RF signal routing requiring stable component supply across consumer electronics, automotive infotainment, and industrial sensor modules.
Supply support for 1N4448HLP-7 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 and manufacturing operations across Asia and the Americas.
The 1N4448HLP-7 belongs to Diodes' high-reliability fast-switching diode product line, engineered specifically for compact, battery-efficient systems demanding AEC-Q101 validation and green material compliance.
FAQ
What is the cathode identification method for 1N4448HLP-7?
The cathode is marked with a bar on the top surface of the X1-DFN1006-2 package. This differs from earlier date codes that used a dot marking; units manufactured from week 27 of 2015 onward use the bar. The bar aligns with Terminal 2 in the pinout diagram and must be oriented toward the higher-potential node in forward-bias applications.
Does 1N4448HLP-7 require special PCB layout considerations?
Yes - Diodes Incorporated specifies a recommended pad layout (X1-DFN1006-2) with defined dimensions for C=0.70 mm, G=0.30 mm, X=0.40 mm, X1=1.10 mm, and Y=0.70 mm. Thermal performance depends on adherence to this layout; deviation increases RθJA beyond the rated 500 °C/W and risks premature thermal failure at elevated ambient temperatures.
Is 1N4448HLP-7 suitable for automotive powertrain applications?
No - although AEC-Q101 qualified, the 1N4448HLP-7 is not intended for safety-critical powertrain functions such as engine control or braking. Its qualification covers passive components in infotainment, body electronics, and lighting systems where failure does not directly impact vehicle motion or occupant safety.
How does moisture sensitivity affect handling of 1N4448HLP-7?
The device is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/85% RH without baking prior to reflow. No floor life limitation applies, and standard SMT reflow profiles (peak 260°C) can be used without preconditioning - simplifying manufacturing for high-mix, low-volume production lines.
1N4448HLP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io):
- 125mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 80 V
- Capacitance @ Vr, F:
- 3pF @ 0.5V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
- Operating Temperature - Junction:
- -65°C ~ 150°C
1N4448HLP-7 FAQ
1.How can I place an order for 1N4448HLP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4448HLP-7 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 1N4448HLP-7 reliable?
The price and inventory of 1N4448HLP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4448HLP-7 is usually 5 days.
3.What payment methods are accepted for 1N4448HLP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4448HLP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4448HLP-7?
1N4448HLP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4448HLP-7 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 1N4448HLP-7?
For technical support, including 1N4448HLP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4448HLP-7 requirements.
6.How does Aetrix verify that 1N4448HLP-7 is sourced from the original manufacturer or authorized distributors?
All 1N4448HLP-7 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 1N4448HLP-7 meets industry standards.
7.What is the process for return or replacement of 1N4448HLP-7?
All 1N4448HLP-7 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4448HLP-7, 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 1N4448HLP-7 part is unused and in its original packaging.
Return procedure for 1N4448HLP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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