EM516-TP Equivalent & Substitute Parts

Part Overview

The EM516-TP is a general-purpose rectifier diode rated for 1800 V DC reverse voltage with 1 A average rectified current in a through-hole DO-41 axial package. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design support and procurement continuity. The EM516-TP remains available in inventory but is no longer in active production status.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	1800 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	5 µA @ 1800 V
Speed	Standard Recovery >500ns, > 200mA (Io)
Capacitance @ Vr, F	15pF @ 4V, 1MHz
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the EM516-TP is determined by equivalence across the following critical electrical and mechanical parameters:

Voltage Rating: DC reverse voltage must equal 1800 V
Current Rating: Average rectified current must equal 1 A
Package Type: Must be DO-41 axial through-hole configuration
Recovery Speed: Must maintain standard recovery characteristics >500ns at >200mA
Reverse Leakage: Must not exceed 5 µA @ 1800 V
Temperature Range: Operating junction temperature range must span -65°C to 150°C
Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The EM516GP-TP meets all substitution criteria as a direct equivalent manufactured by Micro Commercial Co with identical electrical specifications and package configuration.

Parameter Comparison

Parameter	EM516-TP (Main Part)	EM516GP-TP (Substitute)	Match Status
Manufacturer	Micro Commercial Co	Micro Commercial Co	Identical
Category	Diodes, Rectifiers	Diodes, Rectifiers	Identical
Voltage - DC Reverse (Vr) (Max)	1800 V	1800 V	Identical
Current - Average Rectified (Io)	1 A	1 A	Identical
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.25 V @ 1 A	Substitute Higher
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Identical
Current - Reverse Leakage @ Vr	5 µA @ 1800 V	5 µA @ 1800 V	Identical
Capacitance @ Vr, F	15pF @ 4V, 1MHz	15pF @ 4V, 1MHz	Identical
Mounting Type	Through Hole	Through Hole	Identical
Package / Case	DO-204AL, DO-41, Axial	DO-204AL, DO-41, Axial	Identical
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Substitute Active
Packaging	Bulk	Tape & Reel (TR)	Different Format

Engineering Selection Recommendations

The EM516GP-TP is the direct functional equivalent to the EM516-TP. Both parts are manufactured by Micro Commercial Co and share identical electrical ratings, recovery characteristics, and thermal specifications. The primary distinction is product status: the EM516-TP is obsolete while the EM516GP-TP maintains active production status.

The EM516GP-TP exhibits a forward voltage specification of 1.25 V @ 1 A compared to 1.1 V @ 1 A for the EM516-TP. This represents a 0.15 V increase within the standard tolerance range for general-purpose rectifier diodes and does not compromise circuit functionality for applications designed to the EM516-TP specification.

Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing and environmental standards. The EM516GP-TP is supplied in Tape & Reel format, which is standard for active production components, whereas the EM516-TP was supplied in bulk packaging.

For new designs and ongoing procurement, the EM516GP-TP is the appropriate selection due to its active product status and continuous availability.

Frequently Asked Questions (FAQ)

Q: Can the EM516GP-TP directly replace the EM516-TP in existing circuits?

A: Yes. The EM516GP-TP is electrically and mechanically equivalent to the EM516-TP. Both parts share identical voltage ratings (1800 V), current ratings (1 A), package configuration (DO-41 axial), and operating temperature range (-65°C to 150°C). The forward voltage difference of 0.15 V is within acceptable tolerance for general-purpose rectifier applications.

Q: Why is the EM516-TP listed as obsolete?

A: The EM516-TP has been discontinued from active production. The EM516GP-TP represents the current active equivalent from the same manufacturer with identical electrical specifications.

Q: Are there packaging differences between these parts?

A: Yes. The EM516-TP was supplied in bulk packaging, while the EM516GP-TP is supplied in Tape & Reel (TR) format. Both use the same DO-41 axial through-hole package. Tape & Reel packaging is standard for active production components and facilitates automated assembly processes.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the EM516-TP and EM516GP-TP are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current environmental and manufacturing standards.

Q: What is the significance of the forward voltage difference?

A: The EM516GP-TP forward voltage is specified at 1.25 V @ 1 A versus 1.1 V @ 1 A for the EM516-TP. This 0.15 V difference is typical variation within the general-purpose rectifier diode category and does not affect circuit performance for applications designed to the original EM516-TP specification.

Q: Are both parts available for procurement?

A: The EM516-TP remains available in existing inventory (866 pieces). The EM516GP-TP is the active production equivalent with current inventory (766 pieces). For new procurement, the EM516GP-TP is the recommended selection.

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