SS16L MHG Equivalent & Substitute Parts

Part Overview

The SS16L MHG is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 60 V DC reverse voltage and 1 A average rectified current in a Sub SMA surface mount package. This component is classified as Active product status and is RoHS3 compliant with REACH unaffected designation.

Substitute parts become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or alternative sourcing is required for supply chain continuity. The SS16L MHG maintains parametric equivalence with several alternative part numbers across multiple manufacturers, enabling direct functional replacement within specified electrical and mechanical constraints.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	60	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	400	µA @ 60 V
Mounting Type	Surface Mount	—
Package / Case	DO-219AB	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the SS16L MHG is determined by strict parametric matching across the following critical criteria:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 60 V maximum.

Current Rating: All substitute parts must support a minimum average rectified current of 1 A. Parts with higher current ratings (2 A) are functionally compatible but represent over-specification.

Forward Voltage: Forward voltage drop at rated current must not exceed 700 mV @ 1 A to ensure circuit performance equivalence.

Recovery Speed: Fast recovery characteristic with switching time ≤ 500ns at currents > 200mA is required for functional compatibility.

Package and Mounting: All substitute parts must utilize DO-219AB package configuration with surface mount technology to ensure mechanical and thermal compatibility.

Operating Temperature Range: Substitute parts must support the minimum junction temperature range of -55°C to 150°C. Extended temperature ranges do not disqualify substitution.

Compliance Standards: RoHS3 compliance and REACH unaffected status are mandatory for regulatory equivalence.

Parametric Equivalent parts maintain identical electrical specifications. Similar parts meet all critical electrical parameters but may exhibit minor variations in secondary characteristics such as reverse leakage current or capacitance.

Parameter Comparison

Parameter	SS16L MHG (Main)	SS16L R3G	SS1FH6-M3/H	SS1FH6HM3/H	SS2FH6HM3/H
Manufacturer	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	60 V	60 V	60 V
Current - Average Rectified (Io)	1 A	1 A	1 A	1 A	2 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 1 A	700 mV @ 1 A	700 mV @ 1 A	700 mV @ 1 A	780 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	400 µA @ 60 V	400 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V	3 µA @ 60 V
Package / Case	DO-219AB	DO-219AB	DO-219AB	DO-219AB	DO-219AB
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 175°C	-55 to 175°C	-55 to 175°C
Product Status	Active	Discontinued at DiGi Electronics	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Automotive Grade	—	—	—	AEC-Q101	AEC-Q101

Engineering Selection Recommendations

SS16L R3G (Taiwan Semiconductor Corporation): This part is a parametric equivalent to the SS16L MHG with identical electrical specifications and package configuration. However, this part number is discontinued at DiGi Electronics, limiting long-term availability. Selection is appropriate only when existing inventory is confirmed available through alternative distribution channels.

SS1FH6-M3/H (Vishay General Semiconductor): This part meets all critical electrical parameters for direct substitution. The manufacturer is active with confirmed inventory availability. Extended operating temperature range (-55 to 175°C) provides additional thermal margin. Reverse leakage current is significantly lower (3 µA versus 400 µA), resulting in improved circuit efficiency. This part is suitable for general-purpose applications requiring active product status and standard commercial qualification.

SS1FH6HM3/H (Vishay General Semiconductor): This part is electrically identical to SS1FH6-M3/H with the addition of AEC-Q101 automotive qualification. Operating temperature range extends to 175°C. Selection is required for automotive applications, industrial equipment, or systems requiring automotive-grade component certification. Inventory availability is confirmed.

SS2FH6HM3/H (Vishay General Semiconductor): This part is rated for 2 A average rectified current, exceeding the 1 A requirement of the SS16L MHG. Forward voltage at 2 A is 780 mV. This part provides over-specification in current capacity and is suitable for applications where higher current margin is beneficial. AEC-Q101 automotive qualification is included. Selection is appropriate when circuit design permits higher current rating and automotive qualification is required.

Frequently Asked Questions (FAQ)

Q: Can SS1FH6-M3/H directly replace SS16L MHG in existing circuit designs?

A: Yes. Both parts share identical voltage rating (60 V), current rating (1 A), forward voltage (700 mV @ 1 A), and package configuration (DO-219AB). The SS1FH6-M3/H exhibits lower reverse leakage current (3 µA versus 400 µA), which improves circuit efficiency without affecting functional compatibility.

Q: What is the difference between SS1FH6-M3/H and SS1FH6HM3/H?

A: Both parts are electrically identical with matching voltage, current, and forward voltage specifications. The SS1FH6HM3/H includes AEC-Q101 automotive qualification and is designated for automotive applications. Selection depends on application requirements and compliance mandates.

Q: Why does SS2FH6HM3/H have a higher forward voltage (780 mV @ 2 A) compared to the main part (700 mV @ 1 A)?

A: Forward voltage is current-dependent. The SS2FH6HM3/H is rated at 2 A, and forward voltage is specified at that current level. At 1 A operation, the actual forward voltage would be lower than the 2 A specification. This part is functionally compatible for 1 A applications but represents over-specification in current capacity.

Q: Is the SS16L R3G suitable for new designs?

A: The SS16L R3G is discontinued at DiGi Electronics, indicating limited future availability. New designs should utilize active product status parts such as SS1FH6-M3/H, SS1FH6HM3/H, or SS2FH6HM3/H to ensure long-term supply chain continuity.

Q: What is the significance of the lower reverse leakage current in Vishay parts (3 µA) compared to Taiwan Semiconductor parts (400 µA)?

A: Lower reverse leakage current reduces power dissipation and improves circuit efficiency, particularly in low-power or battery-operated applications. Both specifications are within acceptable ranges for Schottky diode technology and do not affect functional substitution eligibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH unaffected status, ensuring regulatory equivalence with the SS16L MHG.

Q: Can I use SS1FH6HM3/H in non-automotive applications?

A: Yes. AEC-Q101 qualification is a superset of standard commercial qualification. Parts with automotive qualification are fully compatible with non-automotive applications and provide additional reliability assurance.

Q: What packaging formats are available for substitute parts?

A: SS16L MHG is supplied in standard packaging. SS16L R3G is available in Cut Tape (CT) and Digi-Reel format. Vishay parts (SS1FH6-M3/H, SS1FH6HM3/H, SS2FH6HM3/H) are supplied in Tape & Reel (TR) format. All maintain DO-219AB package configuration for mechanical compatibility.

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