S2016NRP Equivalent & Substitute Parts

Part Overview

The S2016NRP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse Inc., rated for 200V off-state voltage and 16A RMS on-state current in a Surface Mount TO-263 (D2PAK) package. The product is classified as Obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	S2016NRP
Manufacturer	Littelfuse Inc.
Category	Thyristors
Voltage - Off State	200 V
Current - On State (It (RMS))	16 A
Voltage - On State (Vtm) (Max)	1.6 V
SCR Type	Standard Recovery
Package / Case	TO-263-3, D2PAK (2 Leads + Tab)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the S2016NRP is determined by the following critical parameters:

Package Compatibility: All substitute parts must use TO-263-3 / D2PAK (2 Leads + Tab) surface mount package
Current Rating: On-state RMS current must be 16A to maintain circuit performance
SCR Type: Standard Recovery type required for switching characteristics
Operating Temperature Range: -40°C ~ 125°C minimum
Voltage Rating: Off-state voltage must equal or exceed 200V for safe operation

The S2016NRP has been superseded by higher voltage-rated variants within the same product family (S4016NRP at 400V and S6016NRP at 600V), both manufactured by Littelfuse Inc. An alternative from STMicroelectronics (TN1625-600G-TR) provides equivalent electrical performance at 600V rating with improved specifications in gate trigger parameters.

Parameter Comparison

Parameter	S2016NRP	S4016NRP	S6016NRP	TN1625-600G-TR
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	STMicroelectronics
Voltage - Off State	200 V	400 V	600 V	600 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V	1.5 V	1.5 V	1.3 V
Current - Gate Trigger (Igt) (Max)	30 mA	30 mA	30 mA	25 mA
Voltage - On State (Vtm) (Max)	1.6 V	1.6 V	1.6 V	1.6 V
Current - On State (It (RMS))	16 A	16 A	16 A	16 A
Current - Hold (Ih) (Max)	40 mA	40 mA	40 mA	40 mA
Current - Off State (Max)	10 µA	10 µA	10 µA	5 µA
SCR Type	Standard Recovery	Standard Recovery	Standard Recovery	Standard Recovery
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Littelfuse S4016NRP (400V Rating): Direct family upgrade with identical current and thermal specifications. Active product status ensures long-term availability. Suitable for applications where 200V rating is insufficient but 400V provides adequate margin. Packaged in Tape & Reel format.

Littelfuse S6016NRP (600V Rating): Highest voltage rating within the Littelfuse family. Provides maximum design margin for transient voltage protection. Active product status with highest inventory availability (2780 pcs). Packaged in Cut Tape format.

STMicroelectronics TN1625-600G-TR: Alternative manufacturer option at 600V rating. Demonstrates improved gate trigger specifications (1.3V maximum vs. 1.5V) and lower off-state leakage current (5µA vs. 10µA). Active product status with substantial inventory (4300 pcs). Packaged in Tape & Reel format. All parts maintain ROHS3 compliance and identical operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can S4016NRP or S6016NRP be used as direct replacements for S2016NRP?

A: Yes. Both parts maintain identical on-state current (16A RMS), on-state voltage drop (1.6V maximum), hold current (40mA), and operating temperature range (-40°C ~ 125°C). Higher voltage ratings (400V and 600V respectively) are backward compatible with 200V applications. Package and mounting type are identical (TO-263-3 D2PAK surface mount).

Q: What is the difference between Littelfuse and STMicroelectronics options?

A: Both manufacturers provide 600V-rated parts in identical packages. The STMicroelectronics TN1625-600G-TR offers lower gate trigger voltage (1.3V vs. 1.5V) and reduced off-state leakage current (5µA vs. 10µA). Selection depends on circuit requirements and supplier availability.

Q: Are there packaging format differences between substitutes?

A: Yes. S4016NRP is supplied in Tape & Reel (TR) format, S6016NRP in Cut Tape (CT) format, and TN1625-600G-TR in Tape & Reel (TR) format. Packaging affects procurement and assembly processes but does not impact electrical performance or PCB compatibility.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. S2016NRP, S4016NRP, S6016NRP, and TN1625-600G-TR are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What determines whether a part can substitute for S2016NRP?

A: Critical substitution criteria are: TO-263-3 D2PAK package, 16A RMS on-state current, Standard Recovery SCR type, minimum 200V off-state voltage rating, -40°C to 125°C operating temperature, and surface mount configuration. All listed parts meet these requirements.

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