ES1JL Equivalent & Substitute Parts

Part Overview

The ES1JL is a general-purpose rectifier diode rated for 600 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. The fast recovery characteristic (≤500 ns) and 35 ns reverse recovery time position this component for applications requiring rapid switching performance in low-to-medium power rectification circuits.

Due to its discontinued design status, identifying equivalent and substitute parts is necessary for design continuity, production support, and legacy system maintenance. Substitute options include both direct parametric equivalents and alternative package configurations that maintain electrical performance within specified tolerances.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Maximum @ If	1.7 @ 1 A	V
Speed Classification	Fast Recovery ≤500 ns, >200 mA (Io)	—
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5 µA @ 600 V	µA
Mounting Type	Surface Mount	—
Package / Case	DO-219AB (Sub SMA)	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES1JL is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) Maximum: 600 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) Maximum @ If: 1.7 V @ 1 A
Reverse Recovery Time (trr): 35 ns
Current - Reverse Leakage @ Vr: 5 µA @ 600 V
Speed Classification: Fast Recovery ≤500 ns, >200 mA (Io)

Mechanical Equivalence Criteria:

Mounting Type: Surface Mount
Package / Case: DO-219AB or compatible surface mount package
Operating Temperature Range: -55°C to 150°C minimum

Compliance Criteria:

RoHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Package Equivalents (Sub SMA / DO-219AB): Parts maintaining identical package configuration with parametric equivalence across all electrical specifications.
Alternative Package Equivalents (SOD-123W): Parts with identical electrical performance but different surface mount package geometry, requiring PCB layout modification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If (V)	trr (ns)	Ir @ Vr (µA)	Package / Case	Tj Range (°C)	Product Status	Inventory (Pcs)
ES1JL	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Not For New Designs	84500
ES1JLW	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	SOD-123W	-55 to 175	Active	62371
ES1JL MHG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	925
ES1JL MQG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	1049
ES1JL MTG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	850
ES1JL RFG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	1123
ES1JL RHG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	787
ES1JL RQG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	830
ES1JL RTG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	1065
ES1JL RUG	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	5 @ 600 V	DO-219AB	-55 to 150	Active	1138

Engineering Selection Recommendations

For Direct Package Replacement (DO-219AB Sub SMA):

The ES1JL MHG, ES1JL MQG, ES1JL MTG, ES1JL RFG, ES1JL RHG, ES1JL RQG, ES1JL RTG, and ES1JL RUG variants are all active production parts manufactured by Taiwan Semiconductor Corporation with identical electrical specifications and package configuration. These parts maintain full parametric equivalence to the discontinued ES1JL and require no PCB layout modification. All variants are ROHS3 compliant with MSL 1 rating. Selection among these variants is based on availability and supply chain requirements.

For Alternative Package Configuration (SOD-123W):

The ES1JLW is an active production equivalent offering identical electrical performance with an extended maximum junction temperature range (-55°C to 175°C versus -55°C to 150°C). This part requires PCB layout modification due to different package geometry (SOD-123W versus DO-219AB). The ES1JLW is suitable for applications requiring higher thermal margin or operating in elevated temperature environments. ROHS3 compliance and MSL 1 rating are maintained.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with standard manufacturing processes and storage conditions. REACH unaffected status is consistent across all options.

Frequently Asked Questions (FAQ)

Q: Can ES1JL MHG, MQG, MTG, RFG, RHG, RQG, RTG, and RUG be used interchangeably with the original ES1JL?

A: Yes. These variants are parametrically equivalent with identical electrical specifications (600 V, 1 A, 35 ns trr, 1.7 V forward voltage) and identical package configuration (DO-219AB Sub SMA). No circuit modification is required. The suffix designations represent different manufacturing date codes or tape reel configurations.

Q: What is the primary difference between ES1JL and ES1JLW?

A: The ES1JLW uses a different surface mount package (SOD-123W instead of DO-219AB Sub SMA) and extends the maximum junction temperature rating to 175°C (versus 150°C for ES1JL). Electrical performance is identical. PCB layout modification is required for ES1JLW implementation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (ES1JL MHG, MQG, MTG, RFG, RHG, RQG, RTG, RUG, and ES1JLW) are ROHS3 compliant with MSL 1 rating.

Q: Which substitute part should be selected for new production?

A: The ES1JLW is the recommended choice for new designs, as it carries active product status and offers extended temperature range capability. For existing designs requiring direct package compatibility, any of the ES1JL variants (MHG, MQG, MTG, RFG, RHG, RQG, RTG, RUG) are suitable.

Q: Does package change from DO-219AB to SOD-123W affect circuit performance?

A: Package change does not affect electrical performance. However, SOD-123W has different physical dimensions and land pattern requirements compared to DO-219AB Sub SMA. PCB layout and footprint must be modified accordingly.

Q: What is the reverse recovery time specification, and why is it important?

A: Reverse recovery time (trr) is 35 ns for all listed parts. This parameter defines the time required for the diode to transition from forward conduction to reverse blocking state. Fast recovery characteristics (≤500 ns) are maintained across all substitutes, ensuring compatibility with switching applications.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. Inventory levels vary among active variants. ES1JL RUG (1138 pcs), ES1JL RFG (1123 pcs), and ES1JL RTG (1065 pcs) show higher availability. ES1JLW (62371 pcs) offers significantly higher inventory in the alternative package configuration.

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