S2016RTP Equivalent & Substitute Parts

Part Overview

The S2016RTP is a 200V 16A Standard Recovery SCR (Silicon Controlled Rectifier) manufactured by Littelfuse Inc. in a TO-220-3 through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The S2016RTP serves as a thyristor switch for AC power control applications requiring 200V blocking voltage capability with 16A RMS current handling.

Key Parameters

Parameter	Value
Voltage - Off State	200 V
Current - On State (It (RMS))	16 A
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Gate Trigger (Igt) (Max)	30 mA
Voltage - On State (Vtm) (Max)	1.6 V
SCR Type	Standard Recovery
Mounting Type	Through Hole
Package / Case	TO-220-3
Operating Temperature	-40°C ~ 125°C

Substitute Part Grouping Explanation

Substitution for the S2016RTP is determined by the following critical parameters:

SCR Type: Standard Recovery thyristor architecture
Mounting Type: Through-hole configuration
Package: TO-220-3 form factor
Gate Trigger Characteristics: Vgt (Max) 1.5V and Igt (Max) ≤30mA
On-State Voltage: Vtm (Max) 1.6V
RMS Current Rating: 16A capability
Operating Temperature Range: -40°C to 125°C

Substitute parts must maintain compatibility across these parameters. Off-state voltage may be higher in substitutes, provided the application circuit tolerates increased blocking voltage. All substitute candidates are active products with current manufacturing status and full RoHS3 compliance.

Parameter Comparison

Parameter	S2016RTP	S4016RTP	TYN616RG
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	STMicroelectronics
Voltage - Off State	200 V	400 V	600 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V	1.5 V	1.5 V
Current - Gate Trigger (Igt) (Max)	30 mA	30 mA	25 mA
Voltage - On State (Vtm) (Max)	1.6 V	1.6 V	1.6 V
Current - On State (It (RMS)) (Max)	16 A	16 A	16 A
Current - Hold (Ih) (Max)	40 mA	40 mA	40 mA
Current - Off State (Max)	10 µA	10 µA	5 µA
SCR Type	Standard Recovery	Standard Recovery	Standard Recovery
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

S4016RTP (Littelfuse Inc., 400V 16A): This direct Littelfuse substitute maintains identical gate trigger and on-state voltage specifications while providing 2× the off-state voltage rating. The S4016RTP is an active product with full RoHS3 compliance and tube packaging. Selection of this part is appropriate for applications where the 200V blocking voltage of the original S2016RTP is marginal or where supply chain continuity with the original manufacturer is preferred.

TYN616RG (STMicroelectronics, 600V 16A): This manufacturer-recommended substitute provides the highest off-state voltage rating at 600V with marginally lower gate trigger current (25mA vs. 30mA) and superior off-state leakage characteristics (5µA vs. 10µA). The TYN616RG is an active product with extensive inventory availability (28,500 pcs), full RoHS3 compliance, and REACH unaffected status. This part is suitable for applications requiring maximum voltage margin and long-term supply security.

Both substitutes are electrically compatible with the S2016RTP in applications operating at or below 200V. Circuit validation is required when substituting into designs originally specified for 200V blocking voltage, particularly regarding gate drive circuit impedance and thermal management at rated current.

Frequently Asked Questions (FAQ)

Q: Can S4016RTP or TYN616RG be used as direct replacements for S2016RTP in existing designs?

A: Both parts are electrically compatible at the gate trigger and on-state voltage levels. The higher off-state voltage ratings (400V and 600V respectively) do not prevent operation in 200V circuits. PCB layout and thermal design remain unchanged. Gate drive circuits designed for 1.5V trigger voltage operate identically with both substitutes.

Q: What is the significance of the different off-state voltage ratings?

A: Off-state voltage (Vdrm) determines the maximum reverse voltage the SCR blocks when off. The S2016RTP blocks 200V, S4016RTP blocks 400V, and TYN616RG blocks 600V. Higher ratings provide additional safety margin in circuits with voltage transients or overshoot conditions. Selection depends on the actual peak voltage the circuit experiences during operation.

Q: Are there packaging differences between these parts?

A: All three parts use TO-220-3 through-hole packages with identical pin configurations and thermal tab designs. S2016RTP and S4016RTP are supplied in tube packaging; TYN616RG is also supplied in tube packaging. No PCB layout modifications are required for substitution.

Q: Which substitute should be selected for new designs?

A: TYN616RG is recommended for new designs due to active product status, superior leakage characteristics, extensive inventory availability, and REACH compliance. S4016RTP is appropriate when maintaining Littelfuse component standardization is a design requirement.

Q: What are the gate trigger current differences and their implications?

A: S2016RTP and S4016RTP specify 30mA maximum gate trigger current; TYN616RG specifies 25mA. This 5mA difference is negligible in practical gate drive circuits. Gate drive resistor values and control circuit impedance remain unchanged across all three parts.

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