SL04-M3-08 Equivalent & Substitute Parts

Part Overview

The SL04-M3-08 is a Schottky rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 40 V DC reverse voltage and 1.1 A average rectified current. The device is packaged in DO-219AB (SMF) surface mount configuration and belongs to the eSMP® series. This part is Active status and ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified when design requirements necessitate alternative packaging formats, supplier sourcing, or automotive-grade qualification. Substitution eligibility is determined by matching critical electrical parameters: reverse voltage rating, average rectified current, forward voltage characteristics, recovery time specifications, and reverse leakage current within defined operating conditions.

Key Parameters

Parameter	Value	Condition
Voltage - DC Reverse (Vr) (Max)	40 V	—
Current - Average Rectified (Io)	1.1 A	—
Voltage - Forward (Vf) (Max)	540 mV	@ 1.1 A
Reverse Recovery Time (trr)	10 ns	—
Current - Reverse Leakage	20 µA	@ 40 V
Speed Classification	Fast Recovery ≤ 500 ns	> 200 mA (Io)
Capacitance	65 pF	@ 4 V, 1 MHz
Package / Case	DO-219AB (SMF)	Surface Mount
Operating Temperature - Junction (Max)	175°C	—
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SL04-M3-08 are categorized into two groups based on substitution type and electrical compatibility:

Group 1: Parametric Equivalents (Vishay eSMP® Series)

These parts maintain identical electrical specifications and the same DO-219AB package footprint. Substitution within this group is based on packaging format (Tape & Reel versus Cut Tape & Digi-Reel®) and automotive qualification status. All parts in this group share:

Voltage - DC Reverse (Vr): 40 V
Current - Average Rectified (Io): 1.1 A
Voltage - Forward (Vf): 540 mV @ 1.1 A
Reverse Recovery Time (trr): 10 ns
Current - Reverse Leakage: 20 µA @ 40 V
Capacitance: 65 pF @ 4 V, 1 MHz
Operating Temperature - Junction (Max): 175°C

Group 2: Manufacturer Recommended Alternatives (Cross-Manufacturer)

These parts provide functional equivalence with modified electrical characteristics and different package formats. Substitution is valid when current rating reduction from 1.1 A to 1.0 A is acceptable for the application. Key parameters for this group:

Voltage - DC Reverse (Vr): 40 V (maintained)
Current - Average Rectified (Io): 1.0 A (reduced from 1.1 A)
Forward voltage and reverse leakage characteristics vary by manufacturer
Package formats: SOD-123F or S-FLAT (different from DO-219AB)

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max)	trr	Ir @ Vr	Package	Packaging Format	Grade	Inventory (Pcs)
SL04-M3-08	Vishay	40 V	1.1 A	540 mV @ 1.1 A	10 ns	20 µA @ 40 V	DO-219AB	Tape & Reel (TR)	Standard	299,200
SL04-E3-08	Vishay	40 V	1.1 A	540 mV @ 1.1 A	10 ns	20 µA @ 40 V	DO-219AB	Cut Tape (CT) & Digi-Reel®	Standard	209,400
SL04-E3-18	Vishay	40 V	1.1 A	540 mV @ 1.1 A	10 ns	20 µA @ 40 V	DO-219AB	Cut Tape (CT) & Digi-Reel®	Standard	50,372
SL04-HE3-08	Vishay	40 V	1.1 A	540 mV @ 1.1 A	10 ns	20 µA @ 40 V	DO-219AB	Tape & Reel (TR)	Automotive (AEC-Q101)	17,300
SL04-HM3-08	Vishay	40 V	1.1 A	540 mV @ 1.1 A	10 ns	20 µA @ 40 V	DO-219AB	Tape & Reel (TR)	Automotive (AEC-Q101)	3,400
SL04-HM3-18	Vishay	40 V	1.1 A	540 mV @ 1.1 A	10 ns	20 µA @ 40 V	DO-219AB	Tape & Reel (TR)	Automotive (AEC-Q101)	29,561
CRS04(TE85L,Q,M)	Toshiba	40 V	1.0 A	510 mV @ 1 A	≤ 500 ns	100 µA @ 40 V	SOD-123F	Tape & Reel (TR)	Standard	24,916
PMEG4010CEH,115	Nexperia	40 V	1.0 A	570 mV @ 1 A	≤ 500 ns	50 µA @ 40 V	SOD-123F	Tape & Reel (TR)	Standard	41,506
SM5819PL-TP	Micro Commercial Co	40 V	1.0 A	600 mV @ 1 A	≤ 500 ns	100 µA @ 40 V	SOD-123F	Cut Tape (CT) & Digi-Reel®	Standard	97,680

Engineering Selection Recommendations

For Direct Replacement (Same Electrical Performance and Package)

Select SL04-E3-08, SL04-E3-18, SL04-HE3-08, SL04-HM3-08, or SL04-HM3-18 when the application requires identical electrical specifications and DO-219AB package footprint. These parts are all ROHS3 compliant with MSL 1 (Unlimited).

SL04-E3-08 or SL04-E3-18: Use when Cut Tape & Digi-Reel® packaging is preferred over Tape & Reel format. Both maintain full 1.1 A current rating and 540 mV forward voltage specification.
SL04-HE3-08 or SL04-HM3-08 or SL04-HM3-18: Use when automotive-grade qualification (AEC-Q101) is required. These parts are qualified to automotive standards while maintaining identical electrical performance.

For Cross-Manufacturer Substitution (Modified Electrical Performance)

Select CRS04(TE85L,Q,M), PMEG4010CEH,115, or SM5819PL-TP when application design permits current rating reduction to 1.0 A and package format change to SOD-123F. These parts maintain 40 V reverse voltage rating and fast recovery characteristics.

CRS04(TE85L,Q,M) (Toshiba): Lowest forward voltage (510 mV @ 1 A) among cross-manufacturer options. Operating temperature range: -40°C to 150°C.
PMEG4010CEH,115 (Nexperia): Mid-range forward voltage (570 mV @ 1 A) with moderate reverse leakage (50 µA @ 40 V). Maximum junction temperature: 150°C.
SM5819PL-TP (Micro Commercial Co): Highest forward voltage (600 mV @ 1 A) with widest operating temperature range (-65°C to 125°C). Available in Cut Tape & Digi-Reel® format.

All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) and EAR99 classification.

Frequently Asked Questions (FAQ)

Q: Can SL04-E3-08 be used as a direct replacement for SL04-M3-08?

A: Yes. SL04-E3-08 is a parametric equivalent with identical electrical specifications (40 V, 1.1 A, 540 mV forward voltage, 10 ns recovery time). The only difference is packaging format: SL04-E3-08 is supplied in Cut Tape & Digi-Reel® while SL04-M3-08 is supplied in Tape & Reel. Both use DO-219AB package footprint.

Q: What is the difference between standard-grade and automotive-grade SL04 parts?

A: Automotive-grade parts (SL04-HE3-08, SL04-HM3-08, SL04-HM3-18) carry AEC-Q101 qualification, indicating compliance with automotive reliability and testing standards. Electrical specifications remain identical to standard-grade equivalents (SL04-E3-08, SL04-E3-18). Automotive-grade parts are required for applications subject to automotive qualification requirements.

Q: Can CRS04(TE85L,Q,M) replace SL04-M3-08 in all applications?

A: CRS04(TE85L,Q,M) is functionally equivalent for 40 V Schottky rectification but with two critical differences: (1) current rating is reduced from 1.1 A to 1.0 A, and (2) package format changes from DO-219AB to SOD-123F (S-FLAT). Substitution is valid only when the application design accommodates 1.0 A maximum current and the PCB layout supports SOD-123F footprint.

Q: What are the package footprint differences between DO-219AB and SOD-123F?

A: DO-219AB (SMF) and SOD-123F (S-FLAT) are different surface mount package formats with distinct land patterns and dimensions. PCB layout modifications are required when substituting between these packages. Verify PCB design compatibility before selecting cross-manufacturer alternatives.

Q: Which substitute part has the lowest forward voltage drop?

A: CRS04(TE85L,Q,M) (Toshiba) has the lowest forward voltage specification at 510 mV @ 1 A, compared to 540 mV @ 1.1 A for the SL04-M3-08. This represents approximately 30 mV lower drop at 1 A operating current. PMEG4010CEH,115 (Nexperia) specifies 570 mV @ 1 A, and SM5819PL-TP (Micro Commercial Co) specifies 600 mV @ 1 A.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (SL04-E3-08, SL04-E3-18, SL04-HE3-08, SL04-HM3-08, SL04-HM3-18, CRS04(TE85L,Q,M), PMEG4010CEH,115, and SM5819PL-TP) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the reverse leakage current difference between SL04-M3-08 and cross-manufacturer alternatives?

A: SL04-M3-08 specifies 20 µA @ 40 V reverse leakage. Cross-manufacturer alternatives show higher leakage: CRS04(TE85L,Q,M) and SM5819PL-TP specify 100 µA @ 40 V, while PMEG4010CEH,115 specifies 50 µA @ 40 V. Higher reverse leakage may impact low-power circuit performance and thermal characteristics.

Q: Can automotive-grade SL04-HM3-08 be substituted for standard SL04-M3-08?

A: Yes. SL04-HM3-08 is electrically identical to SL04-M3-08 with the addition of AEC-Q101 automotive qualification. Both use DO-219AB package and Tape & Reel format. Automotive-grade parts are backward-compatible with standard applications but are typically specified for automotive or high-reliability designs.

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