Equivalent & Substitute Parts for AM01Z General Purpose Rectifier Diode

Part Overview

The AM01Z is a general purpose rectifier diode manufactured by Sanken Electric USA Inc., rated for 200 V DC reverse voltage and 1 A average rectified current in an axial through-hole package. This component is classified as Active and RoHS Compliant, suitable for standard rectification applications requiring fast recovery characteristics (≤500 ns at >200 mA).

Substitute parts are necessary when the AM01Z becomes unavailable due to inventory constraints, manufacturing discontinuation, or supply chain disruptions. Alternative components meeting equivalent electrical and mechanical specifications enable design continuity and production scheduling flexibility.

Key Parameters

Parameter	AM01Z Specification
Voltage - DC Reverse (Vr) (Max)	200 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	980 mV @ 1 A
Speed	Fast Recovery ≤500 ns, >200 mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 200 V
Mounting Type	Through Hole
Package / Case	Axial
Operating Temperature - Junction	-40°C ~ 150°C
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AM01Z is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 1 A
Mounting Type: Through Hole
Package / Case: Axial or compatible axial variant (DO-204AL, DO-41)
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Substitute parts may exhibit forward voltage up to 1.1 V @ 1 A, compared to the AM01Z specification of 980 mV @ 1 A. This variation remains within acceptable rectification performance margins.
Speed: Substitute parts with Standard Recovery (>500 ns) are acceptable alternatives to the AM01Z Fast Recovery specification (≤500 ns). Standard recovery diodes function in general purpose rectification circuits.
Current - Reverse Leakage @ Vr: Substitute parts may exhibit leakage up to 5 µA @ 200 V, compared to the AM01Z specification of 10 µA @ 200 V.
Operating Temperature - Junction: Substitute parts with extended temperature ranges (-65°C to -55°C minimum and 150°C to 175°C maximum) are acceptable.
RoHS Status: Both RoHS Compliant and ROHS3 Compliant parts are acceptable substitutes.

All substitute parts listed meet the mandatory equivalence criteria and are classified as Active or Last Time Buy product status with unlimited moisture sensitivity rating.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed	Ir @ Vr	Package	Temp Range	RoHS Status	Product Status
AM01Z	Sanken Electric USA Inc.	200 V	1 A	980 mV @ 1 A	Fast Recovery ≤500 ns	10 µA @ 200 V	Axial	-40°C ~ 150°C	RoHS Compliant	Active
1N3611	Microchip Technology	200 V	1 A	1.1 V @ 1 A	Standard Recovery >500 ns	1 µA @ 200 V	A, Axial	-65°C ~ 175°C	RoHS non-compliant	Active
1N3611GP-E3/54	Vishay General Semiconductor - Diodes Division	200 V	1 A	1 V @ 1 A	Standard Recovery >500 ns	1 µA @ 200 V	DO-204AL (DO-41), Axial	-65°C ~ 175°C	ROHS3 Compliant	Active
1N4003-E3/53	Vishay General Semiconductor - Diodes Division	200 V	1 A	1.1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-55°C ~ 150°C	ROHS3 Compliant	Active
1N4003-E3/54	Vishay General Semiconductor - Diodes Division	200 V	1 A	1.1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-55°C ~ 150°C	ROHS3 Compliant	Active
1N4003-E3/73	Vishay General Semiconductor - Diodes Division	200 V	1 A	1.1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-55°C ~ 150°C	ROHS3 Compliant	Active
1N4003-T	Diodes Incorporated	200 V	1 A	1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-65°C ~ 150°C	ROHS3 Compliant	Last Time Buy
1N4003-TP	Micro Commercial Co	200 V	1 A	1.1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-55°C ~ 150°C	ROHS3 Compliant	Not For New Designs
1N4003G	Taiwan Semiconductor Corporation	200 V	1 A	1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-55°C ~ 150°C	ROHS3 Compliant	Active
1N4003G-T	Diodes Incorporated	200 V	1 A	1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-65°C ~ 175°C	ROHS3 Compliant	Active
1N4003GP-E3/54	Vishay General Semiconductor - Diodes Division	200 V	1 A	1.1 V @ 1 A	Standard Recovery >500 ns	5 µA @ 200 V	DO-204AL (DO-41), Axial	-65°C ~ 175°C	ROHS3 Compliant	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, ROHS3 Compliant):

The following parts are recommended as primary substitutes based on Active product status and ROHS3 compliance:

1N3611GP-E3/54 (Vishay General Semiconductor - Diodes Division): Active status with extended temperature range (-65°C to 175°C) and ROHS3 compliance. Forward voltage of 1 V @ 1 A and reverse leakage of 1 µA @ 200 V provide superior performance characteristics compared to the AM01Z specification.
1N4003-E3/53, 1N4003-E3/54, 1N4003-E3/73 (Vishay General Semiconductor - Diodes Division): All three variants are Active status with ROHS3 compliance. These parts are electrically equivalent with 200 V reverse voltage and 1 A current rating. Forward voltage of 1.1 V @ 1 A and reverse leakage of 5 µA @ 200 V meet substitution criteria.
1N4003G (Taiwan Semiconductor Corporation): Active status with ROHS3 compliance. Forward voltage of 1 V @ 1 A and reverse leakage of 5 µA @ 200 V provide performance within acceptable variation parameters.
1N4003G-T (Diodes Incorporated): Active status with ROHS3 compliance and extended temperature range (-65°C to 175°C). Forward voltage of 1 V @ 1 A and reverse leakage of 5 µA @ 200 V meet all substitution criteria.
1N4003GP-E3/54 (Vishay General Semiconductor - Diodes Division): Active status with ROHS3 compliance and extended temperature range (-65°C to 175°C). Forward voltage of 1.1 V @ 1 A and reverse leakage of 5 µA @ 200 V are within acceptable variation parameters.

Secondary Substitutes (Limited Availability or Restricted Status):

1N4003-T (Diodes Incorporated): Last Time Buy status indicates limited future availability. ROHS3 compliant with equivalent electrical specifications. Suitable for immediate substitution but not recommended for long-term production planning.
1N4003-TP (Micro Commercial Co): Not For New Designs status restricts use to legacy applications or existing inventory replacement only. ROHS3 compliant with equivalent electrical specifications.
1N3611 (Microchip Technology): RoHS non-compliant status restricts use in applications requiring RoHS compliance. Active status with equivalent electrical specifications but not suitable for RoHS-regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the AM01Z be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts meet the mandatory equivalence criteria of 200 V reverse voltage, 1 A average rectified current, through-hole mounting, and axial package configuration. Physical and electrical compatibility is confirmed for direct substitution in circuit applications.

Q: What is the difference between Fast Recovery and Standard Recovery specifications?

A: The AM01Z specifies Fast Recovery with recovery time ≤500 ns at >200 mA. All substitute parts listed feature Standard Recovery with recovery time >500 ns. Standard recovery diodes function in general purpose rectification circuits and are acceptable substitutes for fast recovery applications in non-critical timing scenarios. Recovery speed affects switching transient behavior but does not prevent functional substitution in DC rectification applications.

Q: Are there differences in forward voltage between the AM01Z and substitute parts?

A: Yes. The AM01Z specifies 980 mV forward voltage @ 1 A, while substitute parts range from 1 V to 1.1 V @ 1 A. This variation of up to 120 mV is within acceptable rectification performance margins and does not prevent functional substitution. Forward voltage differences result in minor variations in voltage drop across the diode during conduction but do not affect circuit compatibility in standard rectification applications.

Q: Which substitute part offers the best performance match to the AM01Z?

A: The 1N3611GP-E3/54 and 1N4003G-T provide the closest performance match with forward voltage of 1 V @ 1 A (compared to AM01Z at 980 mV @ 1 A) and extended operating temperature ranges. Both parts are Active status with ROHS3 compliance and high inventory availability.

Q: Can I use substitute parts with different operating temperature ranges?

A: Yes. Substitute parts with extended temperature ranges (-65°C to 175°C) are acceptable for applications operating within the AM01Z temperature range (-40°C to 150°C). Extended temperature capability provides additional design margin without compromising compatibility. Conversely, substitute parts with narrower temperature ranges (-55°C to 150°C) are acceptable if the application operates within those limits.

Q: What is the significance of RoHS compliance status?

A: The AM01Z is RoHS Compliant. All recommended primary substitute parts are ROHS3 Compliant, meeting equivalent environmental and material restriction requirements. The 1N3611 from Microchip Technology is RoHS non-compliant and is not suitable for applications requiring RoHS compliance certification.

Q: Are there package compatibility considerations?

A: All substitute parts feature axial through-hole packages compatible with the AM01Z. Specific package designations include DO-204AL and DO-41, which are industry-standard axial diode packages. Physical dimensions and lead spacing are equivalent, enabling direct board-level substitution without layout modifications.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape and Tape & Reel refer to supply format rather than component packaging. Both formats contain the same axial diode in DO-204AL or DO-41 package. Cut Tape is suitable for small-quantity manual assembly, while Tape & Reel is optimized for automated pick-and-place equipment. Component electrical and mechanical specifications are identical regardless of supply format.

Q: Should I avoid parts with "Last Time Buy" or "Not For New Designs" status?

A: Parts designated as Last Time Buy (1N4003-T) or Not For New Designs (1N4003-TP) have restricted future availability. These parts are acceptable for immediate substitution or legacy product support but are not recommended for new product designs or long-term production planning. Primary substitute parts with Active status are preferred for new applications.

Q: Is reverse leakage current variation significant?

A: Reverse leakage current varies among substitute parts from 1 µA to 10 µA @ 200 V. The AM01Z specifies 10 µA @ 200 V. Substitute parts with lower leakage (1 µA to 5 µA) provide improved performance characteristics. Reverse leakage affects DC blocking capability and heat dissipation in reverse bias conditions but does not prevent functional substitution in standard rectification applications.

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