ES1J-AQ Equivalent & Substitute Parts

Part Overview

The ES1J-AQ is a superfast recovery rectifier diode manufactured by Diotec Semiconductor, designed for surface mount applications in the DO-214AC (SMA) package. This component operates at 600 V DC reverse voltage with 1 A average rectified current and features a 35 ns reverse recovery time, making it suitable for high-frequency switching applications. The part is currently in active production status with 908 pieces available in new original inventory. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate alternative sourcing requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

ES1J-AQ

Diotec SemiconductorIn Stock: 978ES1J-AQ Datasheet

Current PartRFQ

ER1J

Diotec SemiconductorIn Stock: 35485ER1J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ES1J-AQ is determined by strict equivalence across the following critical parameters:

• Voltage Rating: DC reverse voltage must equal 600 V maximum
• Current Rating: Average rectified current must equal 1 A
• Forward Voltage Drop: Maximum forward voltage at 1 A must equal 1.7 V
• Package and Mounting: Must use DO-214AC (SMA) surface mount package
• Operating Temperature Range: Must support -50°C to 150°C junction temperature
• Technology Classification: Must be Standard technology, fast recovery diode

The ER1J from Diotec Semiconductor meets all these core electrical and mechanical parameters. While the ER1J exhibits a reverse recovery time of 75 ns compared to the ES1J-AQ's 35 ns, both parts satisfy the fast recovery classification threshold (≤ 500 ns for currents > 200 mA). All other electrical characteristics, package specifications, and operating conditions are identical between the two parts.

Parameter Comparison

Engineering Selection Recommendations

Both the ES1J-AQ and ER1J are active production components from Diotec Semiconductor with identical electrical specifications across voltage, current, forward voltage drop, and reverse leakage parameters. The parts are mechanically interchangeable, utilizing the same DO-214AC (SMA) surface mount package and supporting the same operating temperature range.

The primary distinction between these parts is the reverse recovery time specification: the ES1J-AQ provides 35 ns recovery time, while the ER1J provides 75 ns recovery time. Both values fall within the fast recovery classification for diodes. Selection between these parts should be based on application-specific switching frequency requirements and circuit performance criteria.

Both parts carry active product status and are manufactured under identical compliance frameworks. The ER1J is available in higher inventory volume (35,400 pieces in Tape & Reel packaging) compared to the ES1J-AQ (908 pieces), which may influence supply chain decisions.

Frequently Asked Questions (FAQ)

Q: Can the ER1J be used as a direct replacement for the ES1J-AQ in all applications?

A: The ER1J is electrically and mechanically compatible with the ES1J-AQ across all specified parameters including voltage rating, current rating, forward voltage drop, reverse leakage, package type, and operating temperature range. The difference in reverse recovery time (75 ns versus 35 ns) must be evaluated against specific application switching frequency requirements. Both parts meet fast recovery diode classification standards.

Q: What is the significance of the reverse recovery time difference between these parts?

A: The ES1J-AQ specifies 35 ns reverse recovery time while the ER1J specifies 75 ns. Both values satisfy the fast recovery classification threshold of ≤ 500 ns for currents exceeding 200 mA. Applications requiring faster switching transitions may benefit from the ES1J-AQ's shorter recovery time, while the ER1J remains suitable for standard fast recovery applications.

Q: Are the packaging formats identical between ES1J-AQ and ER1J?

A: Both parts use the DO-214AC (SMA) surface mount package. The ES1J-AQ is supplied in standard packaging, while the ER1J is supplied in Tape & Reel (TR) format. The physical component dimensions and PCB footprint are identical; the difference is in the delivery and handling format.

Q: What inventory considerations should influence part selection?

A: The ER1J has significantly higher inventory availability (35,400 pieces) compared to the ES1J-AQ (908 pieces). For applications where supply continuity is a priority, the ER1J may offer better long-term availability. Both parts maintain active production status.

Q: Are there any compliance or certification differences between these parts?

A: Both parts share identical HTSUS classification (8541.10.0000) and are manufactured by Diotec Semiconductor under the same technology classification (Standard). Both carry active product status. No compliance or certification differences exist between the two parts.