TST30H200CW Equivalent & Substitute Parts

Part Overview

The TST30H200CW is a Schottky rectifier diode rated for 200 V DC reverse voltage and 15 A average rectified current in a through-hole TO-220AB package. Manufactured by Taiwan Semiconductor Corporation, this component is classified as "Not For New Designs," indicating it has reached end-of-life status. This obsolescence necessitates identification of functionally equivalent alternatives from active product lines to maintain design continuity and ensure supply chain availability for existing applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	15	A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 15 A	mV
Current - Reverse Leakage @ Vr	150	µA @ 200 V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Technology	Schottky	—
Mounting Type	Through Hole	—
Package / Case	TO-220-3	—
Operating Temperature - Junction	-55°C to 150°C	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the TST30H200CW is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 15 A minimum
Technology: Schottky
Mounting Type: Through Hole
Package / Case: TO-220-3
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

Operating Temperature Range: Must encompass or exceed -55°C to 150°C
RoHS Compliance: ROHS3 Compliant
Forward Voltage (Vf): Acceptable within typical Schottky diode specifications

Parts meeting all primary criteria are classified as direct substitutes. Parts meeting primary criteria with minor deviations in secondary parameters are classified as functional alternatives with application-specific considerations.

Parameter Comparison

Parameter	TST30H200CW	V30202C-M3/4W	ST30200C	ST30120C	V20200G-E3/4W
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor	SMC Diode Solutions	SMC Diode Solutions	Vishay General Semiconductor
Product Status	Not For New Designs	Active	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	120 V	200 V
Current - Average Rectified (Io)	15 A	15 A	—	—	10 A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 15 A	880 mV @ 15 A	1.1 V @ 15 A	970 mV @ 15 A	1.7 V @ 10 A
Current - Reverse Leakage @ Vr	150 µA @ 200 V	250 µA @ 200 V	160 µA @ 200 V	800 µA @ 120 V	150 µA @ 200 V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Operating Temperature - Junction	-55°C to 150°C	-40°C to 175°C	-55°C to 150°C	-55°C to 150°C	-40°C to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	2669 Pcs New Original In Stock	8487 Pcs New Original In Stock	1704 Pcs New Original In Stock	2065 Pcs New Original In Stock	1135 Pcs New Original In Stock

Engineering Selection Recommendations

Direct Substitute (Preferred):

The V30202C-M3/4W from Vishay General Semiconductor is the primary equivalent for the TST30H200CW. This part maintains identical voltage and current ratings (200 V, 15 A), operates across an extended temperature range (-40°C to 175°C), and carries Active product status. The forward voltage specification (880 mV @ 15 A) is marginally lower than the original part, indicating improved efficiency characteristics. Both parts are ROHS3 Compliant and carry REACH Unaffected status. Inventory availability is substantial at 8487 pieces.

Secondary Substitutes (Functional Alternatives):

The ST30200C from SMC Diode Solutions meets the 200 V and 15 A requirements with Active product status. This diode array configuration (1 Pair Common Cathode) differs from the single-diode topology of the TST30H200CW but maintains electrical equivalence for applications utilizing common-cathode architecture. Forward voltage is specified at 1.1 V @ 15 A. Operating temperature range matches the original part (-55°C to 150°C).

The ST30120C from SMC Diode Solutions is suitable only for applications where the 120 V reverse voltage rating is sufficient. This part does not meet the 200 V specification of the original design and is not recommended as a direct substitute for 200 V applications.

The V20200G-E3/4W from Vishay General Semiconductor provides 200 V reverse voltage but is rated for 10 A average rectified current, below the 15 A requirement. This part is suitable only for applications with reduced current demands.

Compliance and Regulatory Status:

All recommended substitutes maintain ROHS3 compliance. The V30202C-M3/4W and V20200G-E3/4W carry REACH Unaffected status, identical to the original part. The SMC Diode Solutions parts (ST30200C and ST30120C) are REACH Affected, requiring compliance verification for specific end-use applications.

Frequently Asked Questions (FAQ)

Q: Can the V30202C-M3/4W directly replace the TST30H200CW in existing designs?

A: Yes. The V30202C-M3/4W meets all primary substitution criteria: 200 V reverse voltage, 15 A average rectified current, Schottky technology, TO-220-3 package, and fast recovery speed. The part is in Active product status with superior inventory availability. The extended operating temperature range (-40°C to 175°C) provides additional design margin.

Q: What is the difference between the TST30H200CW and the ST30200C?

A: Both parts are rated for 200 V and 15 A with identical package and technology specifications. The primary difference is diode configuration: the TST30H200CW is a single diode, while the ST30200C is a diode array with 1 Pair Common Cathode configuration. The ST30200C is suitable for applications requiring common-cathode architecture. Forward voltage differs slightly (1.1 V versus 920 mV), reflecting different internal designs.

Q: Why is the ST30120C listed as a substitute if it has only 120 V rating?

A: The ST30120C does not meet the 200 V reverse voltage requirement of the TST30H200CW and is not recommended as a substitute for applications requiring 200 V operation. It is included in the comparison table for reference only. Use of this part in 200 V applications will result in component failure.

Q: What is the significance of the "1 Pair Common Cathode" configuration in the SMC parts?

A: This configuration indicates the diode array contains two diodes with a shared cathode terminal. Applications utilizing single-diode topology (such as the TST30H200CW) require verification that the common-cathode configuration is compatible with the circuit design. Pin configuration and electrical connectivity must be confirmed before substitution.

Q: Are there temperature range differences between substitute parts?

A: Yes. The V30202C-M3/4W operates from -40°C to 175°C, exceeding the original -55°C to 150°C range at the upper limit. The ST30200C and ST30120C match the original range (-55°C to 150°C). The V20200G-E3/4W operates from -40°C to 150°C. Applications requiring operation below -40°C must use the ST30200C or ST30120C.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This specification indicates the diode exhibits fast recovery characteristics with recovery time not exceeding 500 nanoseconds when switching currents greater than 200 milliamps. All listed parts meet this specification, ensuring compatibility in high-frequency switching applications.

Q: How do forward voltage differences affect circuit performance?

A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. The TST30H200CW specifies 920 mV @ 15 A, while the V30202C-M3/4W specifies 880 mV @ 15 A. The 40 mV difference results in lower power dissipation with the Vishay part. The ST30200C at 1.1 V @ 15 A exhibits higher dissipation. Circuit thermal design and efficiency calculations must account for these variations.

Q: What is the impact of reverse leakage current differences?

A: Reverse leakage current affects power consumption during reverse bias operation. The TST30H200CW and V20200G-E3/4W specify 150 µA @ 200 V, while the V30202C-M3/4W specifies 250 µA @ 200 V and the ST30200C specifies 160 µA @ 200 V. These differences are negligible in most applications but become significant in low-power or precision analog circuits.

Q: Is the TO-220-3 package identical across all substitute parts?

A: All parts use the TO-220-3 package designation, indicating three-terminal through-hole configuration. However, pin assignments differ between single-diode and diode-array configurations. Physical package dimensions are identical, but electrical connectivity and circuit board layout must be verified before substitution.

Q: What inventory considerations should guide part selection?

A: The V30202C-M3/4W offers the highest inventory availability at 8487 pieces, providing supply security for high-volume applications. The ST30200C and ST30120C maintain moderate inventory levels (1704 and 2065 pieces respectively). The V20200G-E3/4W has lower availability at 1135 pieces. Long-term supply planning should prioritize parts with higher inventory levels.

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