ES1B-LTP Equivalent & Substitute Parts

Part Overview

The ES1B-LTP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 1 A average rectified current in a DO-214AC (SMA) surface mount package. This device is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Equivalent and substitute parts are necessary to support existing designs, provide alternative sourcing options, and enable transitions to active product status alternatives while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	mV
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65 to 175	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the ES1B-LTP is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 1 A
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 5 µA @ 100 V
Mounting Type: Surface Mount
Package / Case: DO-214AC (SMA) or DO-214BA (GF1)

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: 920–1100 mV @ 1 A (acceptable range)
Reverse Recovery Time (trr): 25–50 ns (acceptable range)
Operating Temperature - Junction: Minimum -55°C, Maximum 150–175°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories based on package type: DO-214AC (SMA) package variants and DO-214BA (GF1) package variants. Parts within each package category are electrically interchangeable when all primary criteria are met. Cross-package substitution (DO-214AC to DO-214BA) requires PCB layout verification due to different footprint geometries.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [mV]	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Status
ES1B-LTP	Micro Commercial Co	100	1	950	35	5 @ 100V	DO-214AC	-65 to 175	Not For New Designs
CGRA4002-G	Comchip Technology	100	1	1100	—	5 @ 100V	DO-214AC	-55 to 150	Active
CSFA102-G	Comchip Technology	100	1	950	35	5 @ 100V	DO-214AC	-40 to 150	Active
EGF1B-E3/5CA	Vishay General Semiconductor	100	1	1000	50	5 @ 100V	DO-214BA	-65 to 175	Active
EGF1B-E3/67A	Vishay General Semiconductor	100	1	1000	50	5 @ 100V	DO-214BA	-65 to 175	Not For New Designs
ES1B	YAGEO	—	—	950	—	—	DO-214AC	—	Active
ES1B-13-F	Diodes Incorporated	100	1	920	25	5 @ 100V	DO-214AC	-55 to 150	Active
ES1B-E3/5AT	Vishay General Semiconductor	100	1	920	25	5 @ 100V	DO-214AC	-55 to 150	Active
ESH1B-E3/5AT	Vishay General Semiconductor	100	1	900	25	1 @ 100V	DO-214AC	-55 to 175	Active
ESH1B-E3/61T	Vishay General Semiconductor	100	1	900	25	1 @ 100V	DO-214AC	-55 to 175	Active
ESH1BHE3_A/H	Vishay General Semiconductor	100	1	900	25	1 @ 100V	DO-214AC	-55 to 175	Active

Engineering Selection Recommendations

For DO-214AC (SMA) Package Compatibility:

Parts ES1B-13-F, ES1B-E3/5AT, ESH1B-E3/5AT, ESH1B-E3/61T, and ESH1BHE3_A/H are direct mechanical and electrical substitutes for ES1B-LTP within the DO-214AC package family. All are ROHS3 compliant with MSL 1 (Unlimited) rating. ES1B-13-F and ES1B-E3/5AT are recommended for applications requiring active product status with standard reverse leakage characteristics. ESH1B variants offer reduced reverse leakage (1 µA vs. 5 µA) and extended temperature range to 175°C, suitable for high-reliability applications. CGRA4002-G and CSFA102-G from Comchip Technology provide alternative sourcing with active product status; CSFA102-G matches the forward voltage specification of ES1B-LTP exactly.

For DO-214BA (GF1) Package Compatibility:

EGF1B-E3/5CA is an active product substitute with identical electrical ratings and extended temperature range (-65 to 175°C). This part requires PCB footprint modification from DO-214AC to DO-214BA. EGF1B-E3/67A provides equivalent electrical performance but carries "Not For New Designs" status; use only for legacy design support.

Product Status Considerations:

ES1B-LTP is classified "Not For New Designs." For new designs, select from active status parts: ES1B-13-F, ES1B-E3/5AT, ESH1B-E3/5AT, ESH1B-E3/61T, ESH1BHE3_A/H (DO-214AC package), or EGF1B-E3/5CA (DO-214BA package). All recommended substitutes maintain ROHS3 compliance and unlimited moisture sensitivity rating.

Temperature Range Considerations:

ES1B-LTP operates from -65 to 175°C. Substitutes ES1B-13-F, ES1B-E3/5AT, and CGRA4002-G operate from -55 to 150°C, reducing the lower temperature limit by 10°C and upper limit by 25°C. ESH1B variants and EGF1B-E3/5CA maintain the full -65 to 175°C range. Verify application temperature requirements before selection.

Frequently Asked Questions (FAQ)

Q: Can ES1B-13-F directly replace ES1B-LTP on the PCB?

A: Yes. Both parts use the DO-214AC (SMA) package with identical footprint and pinout. No PCB modification is required. Electrical parameters are within acceptable substitution ranges.

Q: What is the difference between DO-214AC and DO-214BA packages?

A: DO-214AC (SMA) and DO-214BA (GF1) are different surface mount package geometries with different footprints. Direct PCB substitution is not possible without layout modification. Verify footprint compatibility before selecting EGF1B-E3/5CA or other DO-214BA variants.

Q: Why do some substitutes have lower reverse leakage (1 µA vs. 5 µA)?

A: ESH1B variants feature enhanced reverse leakage characteristics (1 µA @ 100 V) compared to standard parts (5 µA @ 100 V). This represents improved performance and is acceptable for applications designed for the ES1B-LTP specification. Lower leakage does not create incompatibility.

Q: Is ES1B-LTP still available for purchase?

A: ES1B-LTP is classified "Not For New Designs" but remains in stock (17,200 pcs available). For new designs, use active status alternatives. For legacy design support, ES1B-LTP remains available through current inventory.

Q: What is the temperature range difference between ES1B-LTP and ES1B-13-F?

A: ES1B-LTP operates -65 to 175°C; ES1B-13-F operates -55 to 150°C. The lower limit is 10°C higher and the upper limit is 25°C lower. Verify application temperature requirements fall within -55 to 150°C before substitution.

Q: Can I use EGF1B-E3/5CA as a substitute if I modify the PCB footprint?

A: Yes. EGF1B-E3/5CA is electrically equivalent and maintains the full -65 to 175°C temperature range. PCB layout modification from DO-214AC to DO-214BA footprint is required. Verify mechanical clearance and trace routing compatibility.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This classification indicates the diode exhibits fast recovery characteristics with reverse recovery time not exceeding 500 nanoseconds at reverse currents greater than 200 mA. All listed substitutes meet this specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant status and are suitable for applications requiring RoHS compliance.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations and requires no special moisture control during storage, handling, or assembly. All listed parts carry this rating.

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