SK34SMB Equivalent & Substitute Parts Reference

Part Overview

SK34SMB is a Schottky diode manufactured by Diotec Semiconductor, categorized under Diodes, Rectifiers. Designed for fast recovery applications, it features a maximum DC reverse voltage of 40 V, an average rectified current of 3A, and a surface mount DO-214AA (SMB) package. The part is currently active and compliant with RoHS3 and REACH standards. Alternatives and substitutes are required primarily for inventory management, procurement flexibility, or to address supply constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

SK34SMB
Diotec SemiconductorIn Stock: 1035SK34SMB Datasheet
SK34SMB
Current Part
B340LB-E3/52T
Vishay General Semiconductor - Diodes DivisionIn Stock: 15767B340LB-E3/52T Datasheet
B340LB-E3/52T
Similar

Key Parameters

Parameter SK34SMB Description
Category Diodes, Rectifiers Product class
Technology Schottky Diode type
Voltage - DC Reverse (Vr) (Max) 40 V Maximum reverse voltage
Current - Average Rectified (Io) 3A Rated average current
Voltage - Forward (Vf) (Max) @ If 550 mV @ 3A Forward voltage at rated current
Speed Fast Recovery =< 500ns, > 200mA (Io) Switching speed range
Current - Reverse Leakage @ Vr 200 µA @ 40V Reverse leakage current
Mounting Type Surface Mount Mounting method
Package / Case DO-214AA, SMB Physical package
Operating Temperature - Junction -50°C ~ 150°C Temperature range
RoHS Status ROHS3 Compliant Environment compliance
REACH Status REACH Unaffected Environment compliance
Product Status Active Lifecycle status

Substitute Part Grouping Explanation

Substitute parts for SK34SMB must meet identical core electrical and mechanical parameters: Schottky technology, 40 V maximum DC reverse voltage, 3A average rectified current, DO-214AA (SMB) surface mount package, and fast recovery speed. Additional requirements include compliance with RoHS3 and REACH standards, matching operating temperature range, and active product status.

Key parameters for substitution:

  • Category: Diodes, Rectifiers
  • Technology: Schottky
  • Voltage - DC Reverse (Vr) (Max): 40 V
  • Current - Average Rectified (Io): 3A
  • Voltage - Forward (Vf) (Max) @ If
  • Speed
  • Current - Reverse Leakage @ Vr
  • Mounting Type
  • Package / Case
  • Operating Temperature - Junction
  • RoHS and REACH compliance

Parameter Comparison

Parameter SK34SMB (Diotec Semiconductor) B340LB-E3/52T (Vishay General Semiconductor)
Category Diodes, Rectifiers Diodes, Rectifiers
Technology Schottky Schottky
Voltage - DC Reverse (Vr) (Max) 40 V 40 V
Current - Average Rectified (Io) 3A 3A
Voltage - Forward (Vf) (Max) @ If 550 mV @ 3A 450 mV @ 3A
Speed Fast Recovery =< 500ns, > 200mA (Io) Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr 200 µA @ 40 V 400 µA @ 40 V
Mounting Type Surface Mount Surface Mount
Package / Case DO-214AA, SMB DO-214AA, SMB
Operating Temperature - Junction -50°C ~ 150°C -65°C ~ 150°C
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected
Product Status Active Active

Engineering Selection Recommendations

Select substitute parts only with an active product status and verified environmental compliance (ROHS3 and REACH Unaffected) as provided. Both SK34SMB and B340LB-E3/52T meet these criteria.

Frequently Asked Questions (FAQ)

Q1: Which electrical parameters must match when selecting a substitute for SK34SMB in Diodes, Rectifiers?
A1: Substitute parts must match Schottky technology, 40 V DC reverse voltage (maximum), 3A average rectified current, forward voltage rating, fast recovery speed, and reverse leakage current at the specified voltage.

Q2: Is physical package compatibility required for substitution?
A2: Yes. The substitute part must have the DO-214AA (SMB) surface mount package to ensure mechanical fit and PCB compatibility.

Q3: Are RoHS and REACH compliance mandatory for substitute selection?
A3: Yes. All substitute components specified must be ROHS3 compliant and REACH unaffected to meet current environmental and regulatory standards.

Q4: Can substitute diodes be used irrespective of slight differences in forward voltage or leakage current?
A4: Substitution is accepted only where all provided electrical and mechanical parameters meet the defined requirements. Differences must be within the explicitly provided tolerances.

Q5: How critical is operating temperature range in selecting substitutes?
A5: Substitute parts must provide an operating temperature range equal to or exceeding the values given for reliable performance under specified conditions.

Request Quote (Ships tomorrow)