ESH1DMH Equivalent & Substitute Parts

Part Overview

The ESH1DMH is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the Micro SMA package. This component operates at 200 V DC reverse voltage with 1 A average rectified current and features fast recovery characteristics with a 25 ns reverse recovery time. The part is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same package and performance specifications, ensuring direct interchangeability in circuit designs.

Substiute Parts

ESH1DMH

Taiwan Semiconductor CorporationIn Stock: 12611ESH1DMH Datasheet

Current PartRFQ

ESH1DM RSG

Taiwan Semiconductor CorporationIn Stock: 219460ESH1DM RSG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ESH1DMH are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are defined by the following parameters:

• Voltage Rating: DC reverse voltage must equal 200 V maximum
• Current Rating: Average rectified current must equal 1 A
• Forward Voltage Drop: Maximum forward voltage must equal 1.5 V at 1 A
• Recovery Characteristics: Reverse recovery time must equal 25 ns; speed classification must be Fast Recovery ≤ 500ns, > 200mA
• Leakage Current: Reverse leakage current must equal 1 µA at 200 V
• Capacitance: Junction capacitance must equal 3 pF at 4 V, 1 MHz
• Package Configuration: 2-SMD, Flat Lead in Micro SMA package
• Mounting Technology: Surface mount configuration
• Temperature Range: Operating junction temperature range must be -55°C to 150°C
• Compliance Standards: RoHS3 compliance and REACH unaffected status

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The ESH1DM RSG is a direct parametric equivalent to the ESH1DMH. Both components are manufactured by Taiwan Semiconductor Corporation and maintain identical electrical specifications across all critical parameters including voltage rating, current capacity, forward voltage drop, recovery time, leakage current, and junction capacitance. Both parts are packaged in the Micro SMA 2-SMD flat lead configuration for surface mount assembly.

Both the ESH1DMH and ESH1DM RSG hold Active product status, carry AEC-Q101 automotive qualification, and comply with ROHS3 environmental standards. Both components are classified as REACH unaffected and carry EAR99 export classification. The moisture sensitivity level is identical at MSL 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Selection between these parts may be based on inventory availability, supply chain considerations, or procurement lead times. The ESH1DM RSG currently maintains significantly higher inventory levels (219,382 pcs) compared to the ESH1DMH (12,595 pcs), which may influence sourcing decisions for high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can the ESH1DM RSG be used as a direct replacement for the ESH1DMH in existing circuit designs?

A: Yes. The ESH1DM RSG is a parametric equivalent with identical electrical and mechanical specifications. All critical parameters including voltage rating, current capacity, forward voltage drop, reverse recovery time, leakage current, and package configuration match exactly. Direct substitution is supported without circuit modification.

Q: Are there any differences in automotive qualification between these parts?

A: No. Both the ESH1DMH and ESH1DM RSG carry AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability and quality standards.

Q: Do both parts require the same PCB footprint and assembly process?

A: Yes. Both components use the Micro SMA 2-SMD flat lead package configuration for surface mount assembly. PCB footprints and reflow soldering parameters are identical.

Q: What is the significance of the different base product numbers (ESH1D versus ESH1)?

A: The base product numbers reflect internal manufacturer product line designations. This difference does not affect electrical performance, compatibility, or substitution eligibility. Both parts maintain identical specifications for all functional parameters.

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

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Export classification (EAR99) and tariff codes (HTSUS 8541.10.0080) are identical.

Q: What factors should influence the selection between ESH1DMH and ESH1DM RSG?

A: Selection should be based on inventory availability, supply chain lead times, and procurement requirements. The ESH1DM RSG maintains higher stock levels, which may provide advantages for immediate availability or high-volume orders. Both parts are functionally interchangeable.

Q: Is the 25 ns reverse recovery time specification critical for circuit performance?

A: The reverse recovery time is a specified parameter that both parts meet identically. This specification is relevant for high-frequency switching applications and power supply designs. Both parts are classified as Fast Recovery diodes with identical recovery characteristics.