S4016R SCR 400V 16A TO-220 Equivalent & Substitute Parts

Part Overview

The S4016R is a silicon-controlled rectifier (SCR) manufactured by Littelfuse Inc., rated for 400 V off-state voltage and 16 A RMS on-state current in a TO-220-3 through-hole package. This component is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The S4016R operates across the industrial temperature range of -40°C to 125°C and complies with RoHS3 standards.

Key Parameters

Parameter	Value
Voltage - Off State	400 V
Current - On State (It (RMS))	16 A
Voltage - On State (Vtm) (Max)	1.6 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Gate Trigger (Igt) (Max)	30 mA
Current - Hold (Ih) (Max)	40 mA
Operating Temperature	-40°C to 125°C
Package / Case	TO-220-3
SCR Type	Standard Recovery

Substitute Part Grouping Explanation

Substitution for the S4016R is determined by the following critical parameters: off-state voltage rating, on-state RMS current capacity, gate trigger characteristics, thermal operating range, and package compatibility. The substitute parts are grouped based on their ability to meet or exceed these specifications within the TO-220 package family.

Group 1: Direct Current Rating Upgrade (2N6507G, 2N6507TG) These parts maintain the 400 V off-state voltage and -40°C to 125°C operating range. Both offer increased on-state RMS current capacity (25 A vs. 16 A), making them suitable for applications requiring higher current handling. Gate trigger parameters remain identical (Vgt 1.5 V max, Igt 30 mA max). Both are active products with robust inventory availability.

Group 2: Voltage Rating Upgrade (TYN616RG) This STMicroelectronics part increases the off-state voltage to 600 V while maintaining the 16 A RMS current rating and identical gate trigger specifications. The TYN616RG is suitable for applications requiring higher voltage blocking capability. It remains an active product with extensive inventory.

Parameter Comparison

Parameter	S4016R	2N6507G	2N6507TG	TYN616RG
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	STMicroelectronics
Voltage - Off State	400 V	400 V	400 V	600 V
Current - On State (It (RMS)) (Max)	16 A	25 A	25 A	16 A
Voltage - On State (Vtm) (Max)	1.6 V	1.8 V	1.8 V	1.6 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V	1.5 V	1.5 V	1.5 V
Current - Gate Trigger (Igt) (Max)	30 mA	30 mA	30 mA	25 mA
Current - Hold (Ih) (Max)	40 mA	40 mA	40 mA	40 mA
Operating Temperature	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Product Status	Discontinued	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For applications requiring 400 V blocking voltage and 16 A RMS current: The 2N6507G and 2N6507TG are direct functional replacements with increased current capacity margin. Both are active products with full RoHS3 compliance and REACH unaffected status. The 2N6507G offers higher inventory availability (12,700 pcs) compared to 2N6507TG (2,315 pcs).

For applications requiring higher voltage blocking capability: The TYN616RG provides 600 V off-state voltage while maintaining 16 A RMS current capacity and identical gate trigger characteristics. This part is manufactured by STMicroelectronics and is active with extensive inventory (28,500 pcs). All three substitute parts maintain the TO-220-3 package footprint and thermal operating range of the original S4016R.

Frequently Asked Questions (FAQ)

Q: Can 2N6507G or 2N6507TG be used as direct replacements for S4016R? A: Yes. Both parts maintain the 400 V off-state voltage and gate trigger specifications of the S4016R. The increased on-state RMS current rating (25 A vs. 16 A) provides additional design margin without affecting circuit compatibility.

Q: What is the primary difference between 2N6507G and 2N6507TG? A: Both parts are electrically identical with the same electrical specifications. The difference is in packaging and inventory availability. 2N6507G is supplied in Box packaging with 12,700 pcs in stock, while 2N6507TG is supplied in Box packaging with 2,315 pcs in stock.

Q: When should TYN616RG be selected instead of the 2N6507 variants? A: TYN616RG should be selected when the application requires 600 V off-state voltage blocking capability. The 16 A RMS current rating and gate trigger characteristics remain compatible with S4016R-based designs.

Q: Are all substitute parts compatible with the S4016R PCB footprint? A: Yes. All substitute parts use the TO-220-3 package, ensuring mechanical and thermal compatibility with existing S4016R board layouts.

Q: Do the substitute parts meet the same compliance standards as the S4016R? A: Yes. All substitute parts are RoHS3 compliant. The 2N6507G and 2N6507TG additionally carry REACH unaffected status. The TYN616RG also carries REACH unaffected status.

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