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Nexperia USA Inc. PMLL4448,135
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- Part No.:
- PMLL4448,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
PMLL4448,135.pdf
- Description:
- DIODE GEN PURP 75V 200MA LLDS
- Quantity:
- Payment:
- Shipping:
Inventory:456
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Product details
Overview
PMLL4448,135 from Nexperia is a single high-speed switching diode in a hermetically sealed glass SOD80C package, featuring 4 ns reverse recovery time, 75 V reverse voltage rating, and 620–720 mV forward voltage at 5 mA - optimized for signal-level clamping and fast logic-level translation in compact PCB layouts.
For engineers reviewing the PMLL4448,135 datasheet, PMLL4448,135 pinout, PMLL4448,135 application, or PMLL4448,135 equivalent, key selection criteria include trr ≤4 ns for >100 MHz switching, VF matching at low IF (5 mA), cathode-marked SOD80C footprint compatibility, and thermal resistance Rth(j-a) = 350 K/W on FR4.
Technical Context
This discrete silicon planar diode operates as an unidirectional signal path with low capacitance (4 pF) and minimal forward recovery voltage (≤2.5 V), enabling clean edge preservation in digital timing paths. Its 200 °C junction temperature rating and −65 °C to +200 °C ambient range support operation in thermally constrained industrial environments.
The device uses a standard two-terminal configuration with anode and cathode defined by a marking band, and is rated for repetitive peak forward current up to 450 mA under transient conditions - supporting surge-tolerant input protection without external current limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| trr | ≤4 ns - enables reliable switching at ≥100 MHz clock edges without tailing or ringing |
| VF @ 5 mA | 620–720 mV - ensures low-voltage logic-level compatibility and minimal IR drop in bias networks |
| VRRM | 100 V - supports transient overvoltage suppression up to 100 V peak in DC supply rails |
| Cd | 4 pF @ 0 V - minimizes capacitive loading on high-impedance signal nodes (e.g., oscillator feedback paths) |
| Rth(j-a) | 350 K/W - defines thermal derating on standard FR4: max 200 mA continuous at Tamb = 70 °C |
| IR @ 20 V | ≤25 nA @ 25 °C - guarantees negligible leakage in precision reference or sample-hold circuits |
Pinout & Package
Encapsulated in a hermetically sealed glass SOD80C surface-mount package (3.3–3.7 mm length × 1.45–1.60 mm width × 0.3 mm height), with tin-plated solder lands compatible with reflow and wave soldering per IPC-7095.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Marked end of package; connects to lower-potential node in forward conduction; carries full IF/IFRM during switching |
| 2 | Anode | Unmarked end; connects to higher-potential node; serves as input for reverse polarity protection or clamp return path |
Key Features
| Feature | Design Value |
|---|---|
| High-speed switching | trr ≤4 ns verified under IF=10 mA → IR=60 mA, RL=100 Ω - meets USB 2.0 and LVDS signal integrity requirements |
| Low forward voltage | 620–720 mV at 5 mA - reduces power loss in always-on bias chains for RF front-end detectors |
| Hermetic glass SMD package | SOD80C outline with 0.3 mm profile - enables automated placement in space-constrained IoT sensor modules |
| Low leakage current | ≤25 nA IR at VR=20 V, 25 °C - maintains accuracy in high-impedance analog monitoring inputs |
Applications
| USB Data Line Protection | LVDS Receiver Clamp |
|---|---|
Use Scenario: Bidirectional 480 Mbps USB 2.0 D+/D− lines exposed to ESD and ground bounce. IC Role / Device Role / Timing Role: Signal-line transient clamp placed between connector and transceiver IC. Use Value: 4 ns trr prevents data eye distortion; 4 pF capacitance avoids signal rise-time degradation beyond USB 2.0 spec. | Use Scenario: Differential receiver inputs in industrial camera links operating at 655 Mbps. IC Role / Device Role / Timing Role: Low-capacitance rail-to-rail clamp limiting common-mode swing outside ±1.4 V. Use Value: 620–720 mV VF ensures clamping threshold stays within LVDS valid input range; 25 nA IR avoids DC offset drift. |
| Microcontroller GPIO Protection | Crystal Oscillator Load Matching |
Use Scenario: 3.3 V MCU I/O pins connected to external switches or sensors in factory automation panels. IC Role / Device Role / Timing Role: Reverse-polarity and ESD protection diode tied between I/O and VDD/GND rails. Use Value: 450 mA IFRM withstands brief inductive kickback; SOD80C footprint fits 0.5 mm pitch routing near BGA packages. | Use Scenario: Parallel-resonant 26 MHz crystal circuit in Bluetooth LE SoC reference design. IC Role / Device Role / Timing Role: Load capacitor trimming element used in series with ceramic trimmer for fine frequency adjustment. Use Value: 4 pF Cd matches typical XTAL load cap tolerance; low IR avoids Q-factor degradation at 150 °C junction temp. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54C,215 | 0.35 pF lower Cd (3.65 pF), but trr = 5 ns; VF = 320 mV @ 10 mA | Better for ultra-low-capacitance RF detector bias; less suitable for >100 MHz digital edge fidelity | Select when sub-4 pF capacitance is critical and trr margin >1 ns is acceptable |
| 1N4148W-7-F | trr = 4 ns same, but VF = 720–1000 mV @ 10 mA; Rth(j-a) = 500 K/W | Higher thermal resistance limits continuous current on FR4; better for low-duty-cycle pulse clamping | Select when board area allows larger SOD-123 and thermal budget permits higher Rth |
Compared with BAT54C,215 and 1N4148W-7-F, PMLL4448,135 delivers tighter VF consistency at low IF (5 mA), superior thermal performance (Rth(j-a) = 350 K/W), and guaranteed trr ≤4 ns - making it optimal for dense, thermally constrained digital interface protection.
Availability
PMLL4448,135 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, LVDS receiver clamping, and microcontroller GPIO hardening requiring stable component supply across production ramps and long-lifecycle industrial programs.
Supply support for PMLL4448,135 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
PMLL4448,135 belongs to Nexperia's high-speed switching diode product line, engineered for signal integrity preservation in compact digital interfaces, not power conversion or high-current rectification.
FAQ
What is the maximum continuous forward current for PMLL4448,135 on standard FR4?
The maximum continuous forward current is 200 mA at Tamb = 25 °C, derating linearly to zero at 150 °C ambient per the published derating curve. This limit is defined by thermal resistance Rth(j-a) = 350 K/W and Ptot = 500 mW, not by bond wire capacity.
Does PMLL4448,135 have automotive qualification?
No - PMLL4448,135 is not AEC-Q101 qualified and is explicitly designated as non-automotive in Nexperia's legal disclaimers. It lacks automotive-specific testing for temperature cycling, humidity, and mechanical shock required for under-hood or safety-critical systems.
How is cathode identification implemented on the SOD80C package?
The cathode is marked by a visible band at one end of the glass body; Pin 1 (cathode) aligns with this band. The anode (Pin 2) is the unmarked end. This marking is consistent across all SOD80C-packaged Nexperia diodes and verified in the official package outline drawing.
Can PMLL4448,135 replace PMLL4148L in existing designs?
Yes - both share identical SOD80C packaging, pinout, and thermal characteristics, but PMLL4448 has lower VF (620–720 mV vs. ≤1 V at 50 mA) and tighter trr distribution. Designers should verify that the lower VF does not affect bias point stability in existing voltage-divider or detector circuits.
PMLL4448,135 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- DO-213AC, MINI-MELF, SOD-80
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 75 V
- Current - Average Rectified (Io):
- 200mA
- 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:
- 25 nA @ 20 V
- Capacitance @ Vr, F:
- 4pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLDS; MiniMelf
- Operating Temperature - Junction:
- 200°C (Max)
PMLL4448,135 FAQ
1.How can I place an order for PMLL4448,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMLL4448,135 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 PMLL4448,135 reliable?
The price and inventory of PMLL4448,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMLL4448,135 is usually 5 days.
3.What payment methods are accepted for PMLL4448,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMLL4448,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMLL4448,135?
PMLL4448,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMLL4448,135 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 PMLL4448,135?
For technical support, including PMLL4448,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMLL4448,135 requirements.
6.How does Aetrix verify that PMLL4448,135 is sourced from the original manufacturer or authorized distributors?
All PMLL4448,135 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 PMLL4448,135 meets industry standards.
7.What is the process for return or replacement of PMLL4448,135?
All PMLL4448,135 units undergo pre-shipment inspection (PSI). If there is an issue with PMLL4448,135, 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 PMLL4448,135 part is unused and in its original packaging.
Return procedure for PMLL4448,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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