S1PJ-M3/85A Equivalent & Substitute Parts

Part Overview

The S1PJ-M3/85A is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 600 V DC reverse voltage with 1 A average rectified current in a DO-220AA (SMP) package. The device is classified as Active product status and complies with RoHS3 and REACH regulations. Substitute parts are identified when inventory constraints, lead time requirements, or supply chain considerations necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	1	µA @ 600 V
Capacitance @ Vr, F	6	pF @ 4V, 1MHz
Package / Case	DO-220AA	SMP
Operating Temperature - Junction	-55 to 150	°C
Mounting Type	Surface Mount
Series	eSMP®

Substitute Part Grouping Explanation

Substitute parts for the S1PJ-M3/85A are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

Voltage Rating: DC reverse voltage must equal 600 V maximum
Current Rating: Average rectified current must equal 1 A
Forward Voltage: Maximum forward voltage must equal 1.1 V at 1 A
Recovery Characteristics: Reverse recovery time must equal 1.8 µs
Reverse Leakage: Reverse leakage current must equal 1 µA at 600 V
Package: Physical package must be DO-220AA (SMP) for surface mount compatibility
Mounting Type: Surface mount configuration required
Series Classification: eSMP® series designation

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. No deviations from specified parameters are permitted for substitution classification.

Parameter Comparison

Parameter	S1PJ-M3/85A	S1PJ-M3/84A	Match
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	✓
Current - Average Rectified (Io)	1 A	1 A	✓
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	✓
Reverse Recovery Time (trr)	1.8 µs	1.8 µs	✓
Current - Reverse Leakage @ Vr	1 µA @ 600 V	1 µA @ 600 V	✓
Capacitance @ Vr, F	6 pF @ 4V, 1MHz	6 pF @ 4V, 1MHz	✓
Package / Case	DO-220AA	DO-220AA	✓
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	✓
Mounting Type	Surface Mount	Surface Mount	✓
Series	eSMP®	eSMP®	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓

Engineering Selection Recommendations

The S1PJ-M3/84A is a direct parametric equivalent to the S1PJ-M3/85A. Both devices are manufactured by Vishay General Semiconductor - Diodes Division within the eSMP® series and share identical electrical specifications, mechanical packaging, and regulatory compliance status.

Both parts are Active product status and comply with RoHS3 and REACH regulations. Both carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

Selection between S1PJ-M3/85A and S1PJ-M3/84A is determined by availability and supply chain considerations. The S1PJ-M3/84A currently maintains higher inventory levels (6100 pcs) compared to S1PJ-M3/85A (761 pcs), which may influence procurement decisions based on lead time and volume requirements.

Frequently Asked Questions (FAQ)

Q: Can S1PJ-M3/84A be used as a direct replacement for S1PJ-M3/85A?

A: Yes. The S1PJ-M3/84A meets all electrical and mechanical specifications of the S1PJ-M3/85A. Both devices operate at 600 V, 1 A with identical forward voltage, recovery time, and leakage characteristics. Both use the DO-220AA surface mount package.

Q: Are there any package compatibility differences between these parts?

A: No. Both parts use the DO-220AA (SMP) package designation. Surface mount assembly equipment and PCB footprints designed for S1PJ-M3/85A are compatible with S1PJ-M3/84A without modification.

Q: Do these parts have different temperature operating ranges?

A: No. Both parts operate across the identical junction temperature range of -55°C to 150°C.

Q: What is the difference between S1PJ-M3/85A and S1PJ-M3/84A?

A: The parts are electrically and mechanically identical. Differences exist only in manufacturing lot designation and current inventory availability.

Q: Are both parts RoHS3 compliant?

A: Yes. Both S1PJ-M3/85A and S1PJ-M3/84A are ROHS3 Compliant and REACH Unaffected.

Q: What is the moisture sensitivity classification for these diodes?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity constraints during standard storage and handling conditions.

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