ES1JAL Equivalent & Substitute Parts

Part Overview

The ES1JAL is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 1 A average rectified current. This surface mount component is housed in a Thin SMA package (DO-221AC with SMA flat leads) and is classified as a fast recovery diode with a reverse recovery time of 35 nanoseconds. The part is Active in product status and RoHS3 compliant.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when supply chain constraints require alternative sourcing, or when design flexibility permits selection from multiple qualified manufacturers offering identical or compatible electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.7 @ 1 A	V
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	1	µA @ 600 V
Capacitance @ Vr, F	15	pF @ 4V, 1MHz
Mounting Type	Surface Mount
Package / Case	DO-221AC, SMA Flat Leads
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard
Packaging	Tape & Reel (TR)

Substitute Part Grouping Explanation

Substitution of the ES1JAL rectifier diode is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.7 V @ 1 A
Mounting Type: Surface Mount
Package / Case: DO-221AC, SMA Flat Leads
Operating Temperature - Junction: -55°C to 150°C
Technology: Standard
Packaging: Tape & Reel (TR)

Allowable Variation Parameters:

Reverse Recovery Time (trr): Variations permitted within fast recovery classification (≤ 500 ns, > 200 mA)
Current - Reverse Leakage @ Vr: Minor variations acceptable (1 µA to 5 µA @ 600 V)
Capacitance @ Vr, F: Minor variations acceptable (10 pF to 15 pF @ 4V, 1MHz)
Supplier Device Package designation: Variations in nomenclature permitted (Thin SMA, SMAF, SMAF-C)

All substitute parts listed maintain Active product status and RoHS3 compliance, ensuring regulatory and supply chain continuity.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	C @ Vr [pF]	Tj Range [°C]	RoHS Status
ES1JAL	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	35	1 @ 600 V	15 @ 4V, 1MHz	-55 to 150	ROHS3
HS1JAL	Taiwan Semiconductor Corporation	600	1	1.7 @ 1 A	75	1 @ 600 V	13 @ 4V, 1MHz	-55 to 150	ROHS3
ER1JAFC_R1_00001	Panjit International Inc.	600	1	1.7 @ 1 A	35	1 @ 600 V	15 @ 4V, 1MHz	-55 to 150	ROHS3
ER1J_R1_00001	Panjit International Inc.	600	1	1.7 @ 1 A	35	1 @ 600 V	15 @ 4V, 1MHz	-55 to 150	ROHS3
ES1JF	MDD	600	1	1.7 @ 1 A	35	5 @ 600 V	15 @ 4V, 1MHz	-55 to 150	RoHS Compliant
US1JAFC_R1_00001	Panjit International Inc.	600	1	1.7 @ 1 A	100	1 @ 600 V	10 @ 4V, 1MHz	-55 to 150	ROHS3

Engineering Selection Recommendations

Primary Equivalents (Identical Electrical Performance):

ER1JAFC_R1_00001 and ER1J_R1_00001 (Panjit International Inc.) are direct parametric equivalents to the ES1JAL, matching all critical electrical specifications including reverse recovery time of 35 nanoseconds, forward voltage of 1.7 V @ 1 A, and reverse leakage current of 1 µA @ 600 V. Both parts maintain ROHS3 compliance and Active product status. These parts are suitable for direct substitution in applications where the original ES1JAL specifications are required.

Secondary Equivalents (Minor Parameter Variations):

HS1JAL (Taiwan Semiconductor Corporation) maintains identical voltage, current, and temperature ratings but exhibits a reverse recovery time of 75 nanoseconds and slightly lower capacitance of 13 pF. This part is suitable for applications where extended reverse recovery time does not impact circuit performance. ROHS3 compliance is maintained.

US1JAFC_R1_00001 (Panjit International Inc.) maintains identical voltage, current, and temperature ratings but exhibits a reverse recovery time of 100 nanoseconds and lower capacitance of 10 pF. This part is suitable for applications where extended reverse recovery time and reduced capacitance do not impact circuit performance. ROHS3 compliance is maintained.

Alternative Equivalent (Compliance Variation):

ES1JF (MDD) matches all critical electrical specifications including reverse recovery time of 35 nanoseconds and forward voltage of 1.7 V @ 1 A. Reverse leakage current is specified at 5 µA @ 600 V, which is within acceptable tolerance for general-purpose rectifier applications. RoHS compliance is maintained, though specified as RoHS Compliant rather than ROHS3. This part is suitable for substitution in applications where the slightly higher reverse leakage current is acceptable.

Selection Basis:

All substitute parts are Active in product status, ensuring ongoing availability and manufacturer support. Selection among equivalents should be based on application-specific requirements regarding reverse recovery time, reverse leakage current, and capacitance characteristics. All parts are packaged in Tape & Reel format with DO-221AC SMA flat leads, ensuring mechanical and assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can HS1JAL be used as a direct replacement for ES1JAL?

A: HS1JAL is a parametric equivalent with identical voltage, current, and temperature ratings. The reverse recovery time is 75 nanoseconds compared to 35 nanoseconds in the ES1JAL. Substitution is permissible in applications where the extended reverse recovery time does not degrade circuit performance. Both parts are ROHS3 compliant and use identical packaging.

Q: What is the difference between ER1JAFC_R1_00001 and ER1J_R1_00001?

A: Both parts are manufactured by Panjit International Inc. and share identical electrical specifications, including 600 V reverse voltage, 1 A current rating, 35 nanosecond reverse recovery time, and 1.7 V forward voltage. The part numbers differ in revision designation but represent equivalent products. Both are suitable for direct substitution of the ES1JAL.

Q: Why does ES1JF show higher reverse leakage current (5 µA vs. 1 µA)?

A: ES1JF is manufactured by MDD and maintains all critical electrical specifications for general-purpose rectification. The reverse leakage current of 5 µA @ 600 V remains within acceptable limits for standard rectifier applications. This part is suitable for substitution where the slightly higher leakage current does not impact circuit design requirements.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. All substitute parts listed are supplied in Tape & Reel (TR) packaging format with DO-221AC SMA flat leads, ensuring compatibility with automated assembly equipment and identical handling requirements as the ES1JAL.

Q: What is the significance of the Supplier Device Package designations (Thin SMA, SMAF, SMAF-C)?

A: These designations refer to supplier-specific nomenclature for the same physical package form (DO-221AC with SMA flat leads). All parts are mechanically and electrically compatible despite nomenclature variations. The physical package dimensions and lead configuration remain identical across all substitute parts.

Q: Which substitute part has the lowest capacitance?

A: US1JAFC_R1_00001 has the lowest capacitance at 10 pF @ 4V, 1MHz, compared to 15 pF in the ES1JAL. This part is suitable for applications where reduced capacitance is beneficial for high-frequency performance or switching speed optimization.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts maintain RoHS compliance. Five parts are specified as ROHS3 Compliant (ES1JAL, HS1JAL, ER1JAFC_R1_00001, ER1J_R1_00001, US1JAFC_R1_00001), and ES1JF is specified as RoHS Compliant. All parts meet regulatory requirements for hazardous substance restrictions.

Q: Can I use US1JAFC_R1_00001 in a high-frequency switching application?

A: US1JAFC_R1_00001 has a reverse recovery time of 100 nanoseconds, which is longer than the ES1JAL (35 ns). For high-frequency switching applications where fast recovery is critical, ER1JAFC_R1_00001, ER1J_R1_00001, or ES1JF are preferred due to their 35 nanosecond reverse recovery time. The selection depends on specific frequency and switching speed requirements.

Q: What inventory levels are available for each substitute part?

A: Current inventory levels are: ES1JAL (2,626 pcs), HS1JAL (7,069 pcs), ER1JAFC_R1_00001 (3,848 pcs), ER1J_R1_00001 (9,100 pcs), ES1JF (45,300 pcs), and US1JAFC_R1_00001 (3,676 pcs). ES1JF offers the highest inventory availability.

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