ES2C Equivalent & Substitute Parts

Part Overview

The ES2C is a general-purpose rectifier diode manufactured by onsemi, rated for 150 V DC reverse voltage and 2 A average rectified current in a DO-214AA (SMB) surface mount package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. The fast recovery characteristic (≤500 ns) and 20 ns reverse recovery time make it suitable for switching power supply and general rectification applications. Due to its discontinued design status, equivalent and substitute parts from active product lines are necessary for ongoing production and maintenance applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	150	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) Maximum @ If	900 mV @ 2 A	mV @ A
Speed Classification	Fast Recovery ≤500 ns, >200 mA	ns
Reverse Recovery Time (trr)	20	ns
Current - Reverse Leakage @ Vr	10 µA @ 150 V	µA
Capacitance @ Vr, F	18 pF @ 4 V, 1 MHz	pF
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES2C is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) Maximum: 150 V minimum
Current - Average Rectified (Io): 2 A minimum
Speed Classification: Fast Recovery ≤500 ns, >200 mA
Package / Case: DO-214AA (SMB) surface mount
Mounting Type: Surface Mount
Operating Temperature Range: Must encompass -55°C to 150°C junction temperature or higher

Direct Equivalents maintain identical electrical specifications and package configuration, enabling pin-for-pin replacement without circuit modification.

Parametric Equivalents meet or exceed all critical electrical parameters and package requirements but may originate from different manufacturers or product lines. These parts satisfy functional requirements within the same package footprint.

Similar Parts share the same package and mounting type but differ in one or more electrical specifications (voltage rating, current rating, or recovery time). These require circuit-level evaluation before substitution.

Parts that deviate from the 150 V / 2 A specification or employ different package types (SMA vs. SMB) are classified as similar but not direct substitutes and require application-specific validation.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If	Speed	trr (ns)	Package	Temp Range °C	Product Status
ES2C	onsemi	150	2	900 mV @ 2 A	Fast Recovery ≤500 ns	20	DO-214AA (SMB)	-55 to 150	Not For New Designs
ES2C-E3/52T	Vishay General Semiconductor	150	2	900 mV @ 2 A	Fast Recovery ≤500 ns	30	DO-214AA (SMB)	-55 to 150	Active
ES2C-E3/5BT	Vishay General Semiconductor	150	2	900 mV @ 2 A	Fast Recovery ≤500 ns	30	DO-214AA (SMB)	-55 to 150	Active
ES2C-M3/52T	Vishay General Semiconductor	150	2	900 mV @ 2 A	Fast Recovery ≤500 ns	30	DO-214AA (SMB)	-55 to 150	Active
ES2C-M3/5BT	Vishay General Semiconductor	150	2	900 mV @ 2 A	Fast Recovery ≤500 ns	30	DO-214AA (SMB)	-55 to 150	Active
ES2CHE3_A/H	Vishay General Semiconductor	150	2	900 mV @ 2 A	Fast Recovery ≤500 ns	20	DO-214AA (SMB)	-55 to 150	Active
ES2CHE3_A/I	Vishay General Semiconductor	150	2	900 mV @ 2 A	Fast Recovery ≤500 ns	20	DO-214AA (SMB)	-55 to 150	Active
MURS115T3G	onsemi	150	2	875 mV @ 1 A	Fast Recovery ≤500 ns	35	DO-214AA (SMB)	-65 to 175	Last Time Buy
MURA215T3G	onsemi	150	2	950 mV @ 2 A	Fast Recovery ≤500 ns	35	DO-214AC (SMA)	-65 to 175	Last Time Buy
CMR1-02 BK PBFREE	Central Semiconductor Corp	200	1	1.1 V @ 1 A	Standard Recovery >500 ns	—	DO-214AA (SMB)	-65 to 150	Active
CMR1-02 TR13 PBFREE	Central Semiconductor Corp	200	1	1.1 V @ 1 A	Fast Recovery ≤500 ns	—	DO-214AA (SMB)	-65 to 150	Active

Engineering Selection Recommendations

Direct Substitutes (Pin-for-Pin Replacement):

The Vishay General Semiconductor parts ES2C-E3/52T, ES2C-E3/5BT, ES2C-M3/52T, ES2C-M3/5BT, ES2CHE3_A/H, and ES2CHE3_A/I are direct functional equivalents to the ES2C. All maintain the 150 V / 2 A specification, DO-214AA (SMB) package, and fast recovery speed classification. These parts are in Active product status and carry ROHS3 compliance and MSL 1 ratings identical to the original part. The ES2CHE3_A/H and ES2CHE3_A/I variants include AEC-Q101 automotive qualification and are suitable for applications requiring automotive-grade reliability.

Alternative Substitutes (Application-Dependent):

The onsemi MURS115T3G maintains 150 V / 2 A ratings and DO-214AA (SMB) packaging with fast recovery characteristics. However, it carries Last Time Buy status, indicating limited future availability. The MURA215T3G offers 150 V / 2 A performance but uses DO-214AC (SMA) packaging, requiring PCB layout modification and is not recommended for direct substitution without board redesign.

Not Recommended for Direct Substitution:

The Central Semiconductor CMR1-02 series parts are rated for 200 V / 1 A, representing a reduction in current capacity from the original 2 A specification. These parts are suitable only for applications where the 1 A current rating is acceptable and the higher voltage rating provides design margin. The CMR1-02 BK PBFREE variant employs standard recovery speed (>500 ns), which differs from the fast recovery characteristic of the ES2C.

Compliance and Certification:

All recommended substitute parts maintain ROHS3 compliance, MSL 1 moisture sensitivity rating, and REACH unaffected status, ensuring regulatory equivalence to the original ES2C. Selection should prioritize parts with Active product status to ensure long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can ES2C-E3/52T directly replace ES2C without circuit modification?

A: Yes. The ES2C-E3/52T is a direct functional equivalent, maintaining identical voltage (150 V), current (2 A), forward voltage (900 mV @ 2 A), speed classification (fast recovery ≤500 ns), and DO-214AA (SMB) package. No circuit modification is required.

Q: What is the difference between ES2C-E3/52T and ES2C-M3/52T?

A: Both parts are functionally equivalent with identical electrical specifications and packaging. The designation difference reflects different manufacturing or qualification batches from Vishay General Semiconductor. Both are suitable for direct substitution.

Q: Why is MURA215T3G not recommended as a direct substitute?

A: The MURA215T3G uses DO-214AC (SMA) packaging instead of DO-214AA (SMB). Although electrical specifications are compatible (150 V / 2 A), the different package footprint requires PCB layout modification and is not a pin-for-pin replacement.

Q: Can CMR1-02 TR13 PBFREE replace ES2C?

A: The CMR1-02 TR13 PBFREE is not a direct substitute. While it shares the DO-214AA (SMB) package and fast recovery speed, it is rated for 200 V / 1 A, reducing current capacity from 2 A to 1 A. Substitution is only valid if the application circuit operates at 1 A or less.

Q: What does "Last Time Buy" product status mean?

A: Last Time Buy indicates the manufacturer has announced end-of-production for that part number. While inventory may remain available, future supply is not guaranteed. Parts with Active status (such as ES2C-E3/52T) are preferred for new designs and ongoing production.

Q: Are ES2CHE3_A/H and ES2CHE3_A/I suitable for automotive applications?

A: Yes. Both parts carry AEC-Q101 automotive qualification and are rated for automotive-grade reliability. They maintain identical electrical specifications to the standard ES2C variants and are suitable for automotive power supply and rectification circuits.

Q: What is the significance of reverse recovery time (trr) differences?

A: The ES2C specifies 20 ns trr, while most Vishay alternatives specify 30 ns. Both fall within the fast recovery classification (≤500 ns). The 10 ns difference has minimal impact on switching performance in typical power supply applications. The ES2CHE3_A/H and ES2CHE3_A/I variants match the original 20 ns specification.

Q: Can I use ES2C-E3/5BT and ES2C-E3/52T interchangeably?

A: Yes. Both parts are electrically and mechanically identical. The designation suffix reflects different tape and reel configurations (5BT vs. 52T). Selection depends on packaging and reel format requirements for automated assembly equipment.

Q: What compliance certifications apply to all recommended substitutes?

A: All recommended substitute parts maintain ROHS3 compliance, MSL 1 (unlimited moisture sensitivity), and REACH unaffected status, ensuring regulatory equivalence to the original ES2C across all major compliance frameworks.

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