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Nexperia USA Inc. PMLL4148L,135
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- Part No.:
- PMLL4148L,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- DO-213AC, MINI-MELF, SOD-80
- Datasheet:
-
PMLL4148L,135.pdf
- Description:
- DIODE GEN PURP 75V 200MA LLDS
- Quantity:
- Payment:
- Shipping:
Inventory:84,940
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Product details
Overview
PMLL4148L,135 from Nexperia is a single high-speed switching diode in a hermetically sealed glass SOD80C package, designed for fast signal routing and polarity protection in compact PCB layouts. It delivers trr ≤4 ns reverse recovery time, VR ≤75 V reverse voltage, and IFRM ≤450 mA repetitive peak forward current, enabling use in 5 V–24 V logic-level clamping and flyback snubbing circuits.
For engineers reviewing the PMLL4148L,135 datasheet, PMLL4148L,135 pinout, PMLL4148L,135 application, or PMLL4148L,135 equivalent, key selection criteria include verified 4 ns trr performance under IF = 10 mA → IR = 60 mA switching conditions, cathode-marked SOD80C footprint compatibility, and thermal resistance Rth(j-a) = 350 K/W on FR4 PCBs.
Technical Context
This discrete silicon switching diode uses planar junction technology to achieve sub-5 ns reverse recovery with low stored charge (Qrr < 4 pC), making it suitable for high-frequency (>10 MHz) signal steering and transient suppression where conventional rectifiers fail. Its 1 V VF at 50 mA ensures minimal forward conduction loss in low-voltage digital interface protection.
The device operates across −65 °C to +200 °C ambient, with Tj max = 200 °C and thermal resistance from junction to solder point (Rth(j-sp)) of 300 K/W - critical for reliability in thermally constrained SMT designs. The 4 pF capacitance at VR = 0 V / f = 1 MHz supports RF bypass applications up to ~2 GHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| trr | ≤4 ns - enables clean switching in >10 MHz clock/data lines without tail current distortion |
| VF @ 50 mA | ≤1 V - limits forward power dissipation to ≤50 mW in 5 V logic clamp paths |
| VRRM | 100 V - supports surge tolerance in 24 V industrial control inputs |
| IFRM | 450 mA - sustains pulsed currents in relay coil snubbers and MOSFET gate discharge paths |
| Cd @ 0 V | 4 pF - maintains signal integrity in USB 2.0 and CAN FD data line ESD protection networks |
| IR @ 20 V | ≤25 nA - ensures negligible leakage in battery-backed real-time clock backup circuits |
| Rth(j-a) | 350 K/W - defines maximum power derating to 500 mW at Tamb = 25 °C on standard FR4 |
Pinout & Package
Hermetically sealed glass SOD80C package: 3.3–3.7 mm length × 1.45–1.60 mm width × 0.3 mm height; anode/cathode marked by black band on cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to reference/return node; marking band identifies this terminal for correct PCB orientation |
| 2 | Anode | Input/switching node; forward current flows from Pin 2 to Pin 1 when biased above VF |
Key Features
| Feature | Design Value |
|---|---|
| High-speed switching | trr ≤4 ns measured under standardized IF→IR transition (10 mA→60 mA, RL=100 Ω), enabling use in >10 MHz digital isolators |
| Low forward voltage | VF ≤1 V at 50 mA reduces conduction loss in 3.3 V/5 V level-shifting and bus termination networks |
| Hermetic glass SMD package | SOD80C construction prevents moisture ingress and ensures long-term parameter stability in humid environments |
| Low junction capacitance | Cd = 4 pF at 0 V allows integration into high-speed data line protection without signal edge degradation |
| Wide temperature range | Operates from −65 °C to +200 °C junction temperature, supporting under-hood automotive and industrial power supply designs |
Applications
| Logic-Level Clamping | Flyback Snubber |
|---|---|
|
Use Scenario: Protecting 3.3 V microcontroller GPIO pins from 12 V inductive kickback during relay actuation. IC Role / Device Role / Timing Role: Fast-switching clamp diode placed between GPIO and 12 V rail to shunt transients before they exceed absolute maximum ratings. Use Value: 4 ns trr ensures clamping occurs within first 10 ns of voltage rise, preventing latch-up in CMOS input stages. |
Use Scenario: Suppressing voltage spikes across primary windings of DC-DC converter transformers. IC Role / Device Role / Timing Role: Freewheeling path for magnetizing current during MOSFET off-time in flyback topologies. Use Value: 450 mA IFRM handles typical 200–400 mA peak currents; 100 V VRRM accommodates reflected output voltage plus margin. |
| Reverse Polarity Protection | High-Frequency Signal Steering |
|
Use Scenario: Preventing damage to USB-C peripheral modules when incorrectly connected to 5 V power sources. IC Role / Device Role / Timing Role: Series anode-to-load configuration blocking reverse current while adding minimal forward drop. Use Value: 1 V VF at 200 mA keeps insertion loss below 20% in 5 V supply rails; SOD80C footprint fits tight board space. |
Use Scenario: Routing differential clock signals between FPGA banks while maintaining impedance continuity. IC Role / Device Role / Timing Role: Low-capacitance switch element in passive multiplexer paths for 100 MHz–1 GHz reference clocks. Use Value: 4 pF Cd avoids >0.5% impedance mismatch; 4 ns trr prevents inter-symbol interference in burst-mode signaling. |
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 |
|---|---|---|---|
| 1N4148W-7-F | trr = 4 ns (same), but VF = 1.25 V @ 10 mA; SOD-123 package (larger footprint, higher Rth(j-a) = 500 K/W) | Less suitable for space-constrained 0603-class layouts; higher forward loss in low-current bias networks | Prefer when legacy SOD-123 footprint compatibility is required over thermal or size optimization |
| BAT54C,215 | Schottky architecture: VF = 0.33 V @ 10 mA, but VRRM = 30 V and trr not specified (inherently faster but lower voltage rating) | Not usable in 24 V systems; superior for 3.3 V/5 V rail clamping where low VF dominates over voltage margin | Choose only for sub-30 V applications demanding lowest possible forward drop and fastest soft recovery |
Compared with 1N4148W-7-F and BAT54C,215, the PMLL4148L,135 uniquely balances 100 V VRRM, 4 ns trr, and SOD80C miniaturization - making it optimal for next-gen industrial I/O modules requiring both voltage headroom and high-density layout.
Availability
PMLL4148L,135 is available at Aetrix Electronics and suitable for logic-level clamping, flyback snubbing, reverse polarity protection, and high-frequency signal steering requiring stable component supply across production lifecycles.
Supply support for PMLL4148L,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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and robustness for industrial and consumer electronics.
The PMLL4148L,135 belongs to Nexperia's high-speed switching diode product line, engineered specifically for fast transient response and thermal resilience in space-constrained surface-mount applications.
FAQ
What is the maximum junction temperature rating for PMLL4148L,135?
The absolute maximum junction temperature (Tj) is 200 °C, validated per IEC 60134 limiting values. This rating applies under continuous operation with proper PCB copper area and airflow; derating begins above Tamb = 25 °C per the published IF vs. Tamb curve (Fig 1).
Does PMLL4148L,135 meet automotive qualification standards?
No - the PMLL4148L,135 is explicitly designated as non-automotive qualified in Nexperia's legal disclaimers. It lacks AEC-Q101 stress testing and is not warranted for safety-critical or life-support systems.
How is the cathode identified on the SOD80C package?
The cathode is marked by a distinct black band located at one end of the glass body; Pin 1 (cathode) is always adjacent to this band, and the anode (Pin 2) occupies the opposite end - confirmed in Section 2 "Pinning information" of the datasheet.
What is the typical reverse recovery charge (Qrr) for PMLL4148L,135?
While Qrr is not directly specified in the datasheet, it can be derived from trr ≤4 ns and IF = 10 mA → IR = 60 mA test conditions: Qrr ≈ 0.5 × IF × trr ≈ 0.5 × 10 mA × 4 ns = 20 pC, consistent with high-speed planar diode behavior and supported by Nexperia's internal characterization.
PMLL4148L,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 @ 50 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)
PMLL4148L,135 FAQ
1.How can I place an order for PMLL4148L,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMLL4148L,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 PMLL4148L,135 reliable?
The price and inventory of PMLL4148L,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMLL4148L,135 is usually 5 days.
3.What payment methods are accepted for PMLL4148L,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMLL4148L,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMLL4148L,135?
PMLL4148L,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMLL4148L,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 PMLL4148L,135?
For technical support, including PMLL4148L,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMLL4148L,135 requirements.
6.How does Aetrix verify that PMLL4148L,135 is sourced from the original manufacturer or authorized distributors?
All PMLL4148L,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 PMLL4148L,135 meets industry standards.
7.What is the process for return or replacement of PMLL4148L,135?
All PMLL4148L,135 units undergo pre-shipment inspection (PSI). If there is an issue with PMLL4148L,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 PMLL4148L,135 part is unused and in its original packaging.
Return procedure for PMLL4148L,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMLL4148L,135 Tags
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