EM518-TP Equivalent & Substitute Parts

Part Overview

The EM518-TP is a general-purpose rectifier diode rated for 2000 V DC reverse voltage with 1 A average rectified current in a through-hole DO-41 axial package. This component is classified as obsolete product status. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production builds, repairs, and legacy system support.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	2000 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A
Current - Reverse Leakage @ Vr	5 µA @ 2000 V
Speed	Standard Recovery >500ns, > 200mA (Io)
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the EM518-TP are determined by electrical and mechanical parameter equivalence. The following criteria establish substitution validity:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 2000 V
Current - Average Rectified (Io): 1 A
Current - Reverse Leakage @ Vr: 5 µA @ 2000 V
Speed: Standard Recovery >500ns, > 200mA (Io)
Operating Temperature - Junction: -65°C ~ 150°C

Mechanical Parameters (Must Match):

Mounting Type: Through Hole
Package / Case: DO-204AL, DO-41, Axial

Acceptable Variations:

Voltage - Forward (Vf) (Max) @ If: Minor variations within standard tolerance
Packaging format (bulk vs. Tape & Reel)
Product status (active vs. obsolete)
Inventory availability

Parameter Comparison

Parameter	EM518-TP (Main Part)	EM518GP-TP (Substitute)	Match Status
Manufacturer	Micro Commercial Co	Micro Commercial Co	Identical
Category	Diodes, Rectifiers	Diodes, Rectifiers	Identical
Description	DIODE GEN PURP 2KV 1A DO41	DIODE GEN PURP 2KV 1A DO41	Identical
Voltage - DC Reverse (Vr) (Max)	2000 V	2000 V	Identical
Current - Average Rectified (Io)	1 A	1 A	Identical
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 1 A	1.25 V @ 1 A	Within tolerance
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Identical
Current - Reverse Leakage @ Vr	5 µA @ 2000 V	5 µA @ 2000 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
Product Status	Obsolete	Active	Substitute is active
Packaging Format	Bulk	Tape & Reel (TR)	Different format

Engineering Selection Recommendations

EM518GP-TP is the direct substitute for EM518-TP based on electrical and mechanical parameter equivalence. Selection considerations:

Product Status: The EM518-TP is obsolete. The EM518GP-TP maintains active product status with the same manufacturer, ensuring continued availability and support.

Compliance: Both parts are ROHS3 compliant with identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0080).

Electrical Performance: All critical electrical parameters are identical. The forward voltage differential (1.2 V vs. 1.25 V @ 1 A) is within standard rectifier diode tolerance and does not affect circuit functionality for general-purpose applications.

Packaging: The EM518GP-TP is supplied in Tape & Reel format, which is standard for production environments. Bulk packaging can be obtained through component distribution channels if required for specific assembly processes.

Inventory: The EM518GP-TP has confirmed stock availability (1056 Pcs New Original In Stock), supporting immediate procurement for production requirements.

Frequently Asked Questions (FAQ)

Q: Can EM518GP-TP be used as a direct replacement for EM518-TP in existing designs?

A: Yes. The EM518GP-TP is electrically and mechanically equivalent to the EM518-TP. All critical parameters including reverse voltage rating, forward current capacity, reverse leakage, and operating temperature range are identical. The parts are pin-compatible in DO-41 axial through-hole applications.

Q: What is the difference between the EM518-TP and EM518GP-TP?

A: The primary differences are product status and packaging format. The EM518-TP is obsolete and supplied in bulk packaging. The EM518GP-TP is active product supplied in Tape & Reel format. Forward voltage specification differs slightly (1.2 V vs. 1.25 V @ 1 A), which is within standard tolerance for general-purpose rectifier diodes.

Q: Is the forward voltage difference between these parts significant?

A: No. The 0.05 V difference in forward voltage (1.2 V vs. 1.25 V @ 1 A) is within standard manufacturing tolerance for rectifier diodes and does not affect circuit performance in general-purpose applications. Both specifications meet the same functional requirements.

Q: Are both parts RoHS compliant?

A: Yes. Both the EM518-TP and EM518GP-TP are ROHS3 compliant and carry identical regulatory classifications.

Q: What packaging formats are available?

A: The EM518-TP is supplied in bulk packaging. The EM518GP-TP is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. Component distributors can provide alternative packaging formats upon request.

Q: Can these parts be used in high-temperature applications?

A: Yes. Both parts are rated for operating junction temperatures from -65°C to 150°C, supporting applications across industrial and commercial temperature ranges.

Q: Are there any moisture sensitivity concerns?

A: No. Both parts have Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message