ES1B-13 Equivalent & Substitute Parts

Part Overview

The ES1B-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 100 V DC reverse voltage and 1 A average rectified current in a surface mount SMA package (DO-214AC). This component is classified as discontinued at DiGi Electronics, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.

The ES1B-13 operates across a junction temperature range of -55°C to 150°C and exhibits fast recovery characteristics with a reverse recovery time of 25 nanoseconds. RoHS non-compliance status and the discontinued product status create the primary drivers for substitution evaluation.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) Maximum @ If	920 mV @ 1 A	mV
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	25	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
Capacitance @ Vr, F	10	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the ES1B-13 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) Maximum: 100 V
Current - Average Rectified (Io): 1 A
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount

Acceptable Variation Parameters:

Voltage - Forward (Vf) Maximum @ If: Tolerance range 920 mV to 1.3 V @ 1 A
Reverse Recovery Time (trr): Range 25 ns to 150 ns (fast recovery classification maintained)
Current - Reverse Leakage @ Vr: Range 1 µA to 10 µA @ 100 V
Operating Temperature - Junction: Minimum -55°C, maximum 150°C or higher
Capacitance @ Vr, F: Range 8.5 pF to 15 pF @ 4V, 1MHz

Parts that deviate from mandatory parameters or employ standard recovery characteristics (>500 ns) are classified as functional alternatives rather than direct substitutes.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ 1A (mV)	trr (ns)	Ir @ 100V (µA)	Product Status	RoHS Status
ES1B-13	Diodes Incorporated	100	1	920	25	5	Discontinued	Non-compliant
ES1B-13-F	Diodes Incorporated	100	1	920	25	5	Active	ROHS3 Compliant
ES1B-E3/5AT	Vishay General Semiconductor - Diodes Division	100	1	920	25	5	Active	ROHS3 Compliant
ES1B-E3/61T	Vishay General Semiconductor - Diodes Division	100	1	920	25	5	Active	ROHS3 Compliant
EGF1B	Fairchild Semiconductor	100	1	1000	50	10	Active	Not specified
ES1B-LTP	Micro Commercial Co	100	1	950	35	5	Not For New Designs	ROHS3 Compliant
GS1B-LTP	Micro Commercial Co	100	1	1000	Not specified	10	Not For New Designs	ROHS3 Compliant
RGF1B	Fairchild Semiconductor	100	1	1300	150	5	Active	Not specified
RS1B-E3/5AT	Vishay General Semiconductor - Diodes Division	100	1	1300	150	5	Active	ROHS3 Compliant
RS1B-E3/61T	Vishay General Semiconductor - Diodes Division	100	1	1300	150	5	Active	ROHS3 Compliant
S1B-E3/5AT	Vishay General Semiconductor - Diodes Division	100	1	1100	1800	1	Active	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1 - Direct Substitutes (Identical Electrical Performance):

ES1B-13-F (Diodes Incorporated) and ES1B-E3/5AT (Vishay General Semiconductor - Diodes Division) and ES1B-E3/61T (Vishay General Semiconductor - Diodes Division) are direct substitutes. These parts maintain identical forward voltage (920 mV @ 1 A), reverse recovery time (25 ns), and reverse leakage current (5 µA @ 100 V) specifications. ES1B-13-F is the manufacturer's direct replacement with active product status and ROHS3 compliance. ES1B-E3/5AT and ES1B-E3/61T differ only in packaging configuration (Cut Tape & Digi-Reel versus the original packaging) and are both ROHS3 compliant with active status.

Tier 2 - Functional Substitutes (Fast Recovery, Acceptable Parameter Variance):

ES1B-LTP (Micro Commercial Co) operates within acceptable parameter variance with forward voltage of 950 mV @ 1 A and reverse recovery time of 35 ns. This part maintains fast recovery classification and is ROHS3 compliant. However, product status is classified as "Not For New Designs," limiting suitability for new development.

RS1B-E3/5AT and RS1B-E3/61T (Vishay General Semiconductor - Diodes Division) are fast recovery diodes with forward voltage of 1.3 V @ 1 A and reverse recovery time of 150 ns. Both are ROHS3 compliant with active product status. The elevated forward voltage and extended recovery time represent acceptable trade-offs for applications where switching speed is less critical.

Tier 3 - Alternative Substitutes (Extended Parameter Variance or Obsolescence):

EGF1B (Fairchild Semiconductor) and RGF1B (Fairchild Semiconductor) meet voltage and current specifications but exhibit forward voltage of 1.0 V to 1.3 V @ 1 A and reverse recovery times of 50 ns to 150 ns respectively. RoHS compliance status is not specified for these parts.

GS1B-LTP (Micro Commercial Co) employs standard recovery characteristics (>500 ns) rather than fast recovery, representing a functional alternative for applications not requiring fast switching performance. Product status is "Not For New Designs."

S1B-E3/5AT (Vishay General Semiconductor - Diodes Division) is a standard recovery diode with reverse recovery time of 1.8 µs and reverse leakage current of 1 µA @ 100 V. This part is suitable only for applications where fast recovery is not a design requirement.

Frequently Asked Questions (FAQ)

Q: Can ES1B-13-F be used as a direct replacement for ES1B-13?

A: Yes. ES1B-13-F is the manufacturer's direct substitute, produced by Diodes Incorporated with identical electrical specifications: 100 V reverse voltage, 1 A average rectified current, 920 mV forward voltage @ 1 A, and 25 ns reverse recovery time. The primary difference is product status (active versus discontinued) and RoHS compliance (ROHS3 compliant versus non-compliant). Packaging is SMA (DO-214AC) for both parts.

Q: What is the difference between ES1B-E3/5AT and ES1B-E3/61T?

A: Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications with the ES1B-13. The designations E3/5AT and E3/61T refer to different packaging configurations and tape specifications within the Cut Tape & Digi-Reel category. Electrical performance is equivalent.

Q: Are RS1B-E3/5AT and RS1B-E3/61T suitable replacements?

A: RS1B-E3/5AT and RS1B-E3/61T are functionally compatible substitutes that meet the 100 V, 1 A specifications and maintain fast recovery classification. However, forward voltage is elevated to 1.3 V @ 1 A (compared to 920 mV for ES1B-13), and reverse recovery time is extended to 150 ns (compared to 25 ns). These parts are appropriate for applications where the higher forward voltage drop and extended recovery time do not compromise circuit performance. Both are ROHS3 compliant with active product status.

Q: Why is S1B-E3/5AT listed as a substitute if it has different recovery characteristics?

A: S1B-E3/5AT is classified as a functional alternative rather than a direct substitute. It employs standard recovery characteristics (1.8 µs reverse recovery time) instead of fast recovery. This part is suitable only for applications where fast switching performance is not required. The 100 V voltage rating and 1 A current rating remain compatible with the original design envelope.

Q: What does "Not For New Designs" product status mean?

A: Parts designated "Not For New Designs" (such as ES1B-LTP and GS1B-LTP) are in end-of-life status. While they remain available in inventory, manufacturers do not recommend their use in new product development. These parts are suitable only for legacy system maintenance or repair applications where existing designs already incorporate them.

Q: Are there RoHS compliance differences between substitute options?

A: Yes. The original ES1B-13 is RoHS non-compliant. Most substitute options, including ES1B-13-F, ES1B-E3/5AT, ES1B-E3/61T, ES1B-LTP, GS1B-LTP, RS1B-E3/5AT, RS1B-E3/61T, and S1B-E3/5AT, are ROHS3 compliant. EGF1B and RGF1B (Fairchild Semiconductor) do not specify RoHS compliance status. For applications subject to RoHS requirements, select from the ROHS3 compliant options.

Q: Can I use EGF1B or RGF1B as replacements?

A: EGF1B and RGF1B meet the 100 V voltage and 1 A current specifications and are available with active product status. However, both exhibit elevated forward voltage (1.0 V to 1.3 V @ 1 A) and extended reverse recovery times (50 ns to 150 ns) compared to the ES1B-13. These parts are functional alternatives suitable for applications where the performance differences do not create circuit constraints. RoHS compliance status is not specified for these parts.

Q: What packaging options are available for substitutes?

A: All substitute parts maintain the DO-214AC (SMA) surface mount package format. Packaging configurations differ in tape and reel specifications: ES1B-13-F is supplied in Tape & Reel (TR), ES1B-E3/5AT and ES1B-E3/61T are supplied in Cut Tape (CT) & Digi-Reel, ES1B-LTP and GS1B-LTP are supplied in Tape & Reel (TR), RS1B-E3/5AT and RS1B-E3/61T are supplied in Tape & Reel (TR), and S1B-E3/5AT is supplied in Tape & Reel (TR). All are compatible with standard surface mount assembly processes.

Q: Which substitute offers the best inventory availability?

A: ES1B-E3/61T (Vishay) has the highest reported inventory at 70,533 pieces, followed by S1B-E3/5AT (Vishay) at 56,876 pieces. ES1B-13-F (Diodes Incorporated) has 35,100 pieces available. All three are ROHS3 compliant with active product status.

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