NXP Semiconductors PRLL5817,135

Overview

PRLL5817,135 from Nexperia is a Schottky barrier diode in a hermetically sealed glass SOD87 surface-mount package, rated for 20 V continuous reverse voltage, 1 A average forward current, and 450 mV forward voltage at 1 A (T_A = 25 °C). It delivers low switching losses and fast recovery for polarity protection and low-power SMPS rectification.

For engineers reviewing the PRLL5817,135 datasheet, PRLL5817,135 pinout, PRLL5817,135 application, or PRLL5817,135 equivalent, key selection criteria include its 20 V V_R, 1 A I_F(AV), 450 mV V_F @ 1 A, SOD87 thermal resistance of 150 K/W, and guard ring protection-critical for reliability in compact power rails.

Technical Context

This discrete Schottky diode uses planar technology with Implotec™ hermetic glass encapsulation to achieve stable junction temperature up to 125 °C and low leakage (≤1 mA at V_RRM). Its SOD87 package enables high thermal resistance (150 K/W) but supports rapid transient response due to minimal stored charge.

The device operates with a cathode-marked anode-cathode configuration, exhibits 70 pF diode capacitance at 4 V/1 MHz, and maintains ≤0.5 mA reverse current at rated V_R and 25 °C-enabling efficient low-voltage DC-DC output rectification.

Key Specifications

Pinout & Package

SOD87 hermetically sealed glass surface-mount package with two terminals: anode and cathode. Cathode identified by band marking per Fig.1 and package outline.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky diode applications.

Compared with RB520S-30T1G and SS12HE3/5AT, PRLL5817,135 uniquely balances 1 A current handling, 20 V blocking, and SOD87's hermetic reliability in space-limited industrial power rails-without sacrificing thermal margin or reverse leakage performance.

Availability

PRLL5817,135 is available at Aetrix Electronics and suitable for low-power switched-mode power supplies, polarity protection circuits, and industrial digital input clamping requiring stable component supply and long-term manufacturability.

Supply support for PRLL5817,135 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 leader in discrete, logic, and PowerMOS semiconductors, formed in 2017 from the former NXP Standard Products business.

The PRLL5817,135 belongs to Nexperia's legacy Schottky diode portfolio designed for high-reliability, low-voltage power management in automotive, industrial, and computing systems where hermetic sealing and guard ring protection are essential.

FAQ

What is the maximum junction temperature specification for PRLL5817,135?

The PRLL5817,135 has a maximum junction temperature (T_j) of 125 °C, as defined in the Absolute Maximum Ratings table. This limit applies under all operating conditions and must be respected in thermal design-especially given its 150 K/W R_{th j-a}-to avoid permanent degradation of the Schottky junction or hermetic seal integrity.

Does PRLL5817,135 have a specified reverse recovery time (t_rr)?

The PRLL5817,135 datasheet does not list a measured t_rr value because Schottky barrier diodes are majority-carrier devices with inherently negligible reverse recovery charge. Its fast switching behavior is confirmed by low switching losses and absence of tail current-making PRLL5817,135 suitable for high-frequency SMPS without snubber networks.

Is PRLL5817,135 RoHS compliant and halogen-free?

Yes, PRLL5817,135 meets RoHS Directive 2011/65/EU requirements and is halogen-free per Nexperia's product compliance documentation. The hermetically sealed glass SOD87 package contains no brominated flame retardants or chlorine-based materials, supporting environmentally regulated industrial and consumer designs.

What is the cathode identification method on PRLL5817,135?

The cathode of PRLL5817,135 is identified by a visible band marking on the glass body of the SOD87 package, consistent with Fig.1 and the "marking indicates the cathode" note in the package outline section. This band must align with the PCB silkscreen or footprint polarity indicator during assembly to ensure correct orientation in polarity protection or rectifier roles.

Can PRLL5817,135 replace PRLL5818 or PRLL5819 in a design?

No-PRLL5817,135 is not a direct substitute for PRLL5818 (30 V) or PRLL5819 (40 V), as their reverse voltage ratings differ significantly. Substituting PRLL5817,135 in a circuit designed for ≥30 V blocking risks catastrophic failure under reverse bias. Always verify V_R and V_RSM against system-level surge and operating voltage margins before interchange.