VS-80RIA80 Equivalent & Substitute Parts

Part Overview

The VS-80RIA80 is an 800V, 125A SCR (Silicon Controlled Rectifier) in TO-209AC chassis stud mount packaging, manufactured by Vishay General Semiconductor - Diodes Division. This thyristor operates as a standard recovery device suitable for high-voltage switching applications requiring robust current handling. The part is Active status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when electrical parameters, mechanical packaging, and operational ratings remain within specification tolerances for direct circuit replacement.

Key Parameters

Parameter	Value	Unit
Voltage - Off State	800	V
Current - On State (It RMS)	125	A
Voltage - Gate Trigger (Vgt) Max	2.5	V
Current - Gate Trigger (Igt) Max	120	mA
Voltage - On State (Vtm) Max	1.6	V
Current - Hold (Ih) Max	200	mA
Operating Temperature Range	-40 to 125	°C
Package Type	TO-209AC (TO-94-4)	Stud Mount
SCR Type	Standard Recovery	—

Substitute Part Grouping Explanation

Substitution eligibility for the VS-80RIA80 is determined by matching the following critical parameters:

Off-state voltage rating: 800V
RMS on-state current rating: 125A
Gate trigger voltage (Vgt Max): 2.5V
Gate trigger current (Igt Max): 120mA
On-state voltage drop (Vtm Max): 1.6V
Hold current (Ih Max): 200mA
Operating temperature range: -40°C to 125°C
Package and mounting type: TO-209AC chassis stud mount
SCR recovery classification: Standard Recovery

The VS-80RIA80PBF meets all these criteria as a parametric equivalent, differing only in packaging designation (PBF suffix indicating lead-free RoHS compliance variant) and non-repetitive surge current ratings, which do not affect primary circuit operation within normal application parameters.

Parameter Comparison

Parameter	VS-80RIA80	VS-80RIA80PBF	Match
Voltage - Off State	800 V	800 V	✓
Voltage - Gate Trigger (Vgt) Max	2.5 V	2.5 V	✓
Current - Gate Trigger (Igt) Max	120 mA	120 mA	✓
Voltage - On State (Vtm) Max	1.6 V	1.6 V	✓
Current - On State (It AV) Max	80 A	80 A	✓
Current - On State (It RMS) Max	125 A	125 A	✓
Current - Hold (Ih) Max	200 mA	200 mA	✓
Current - Off State Max	15 mA	15 mA	✓
Operating Temperature	-40 to 125°C	-40 to 125°C	✓
Package / Case	TO-209AC, TO-94-4, Stud	TO-209AC, TO-94-4, Stud	✓
SCR Type	Standard Recovery	Standard Recovery	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Current - Non Rep. Surge 50Hz	1900 A	1600 A	Variant
Current - Non Rep. Surge 60Hz	1990 A	1675 A	Variant

Engineering Selection Recommendations

Both VS-80RIA80 and VS-80RIA80PBF are Active status products with identical RoHS3 compliance and REACH unaffected status. The primary distinction is the PBF designation, which indicates lead-free manufacturing and packaging compliance. Selection between these parts depends on supply chain requirements and procurement specifications:

VS-80RIA80: Standard lead-containing variant, suitable for applications without lead-free mandates
VS-80RIA80PBF: Lead-free RoHS3 compliant variant, required for EU market compliance and lead-free assembly processes

Both parts maintain identical electrical performance within the specified operating range. Non-repetitive surge current ratings differ slightly but remain within acceptable tolerance for standard circuit protection applications. Inventory availability should be evaluated based on current stock levels (822 pcs for VS-80RIA80; 786 pcs for VS-80RIA80PBF).

Frequently Asked Questions (FAQ)

Q: Can VS-80RIA80PBF replace VS-80RIA80 in existing designs?

A: Yes. All primary electrical parameters—voltage rating, current rating, gate trigger characteristics, and thermal range—are identical. The PBF suffix indicates lead-free compliance only and does not affect circuit functionality.

Q: What does the PBF suffix indicate?

A: PBF denotes lead-free (Pb-free) RoHS3 compliant packaging and manufacturing. This is a compliance designation, not a performance change.

Q: Are there differences in surge current handling?

A: Non-repetitive surge current ratings differ slightly (1900A/1990A vs. 1600A/1675A at 50/60Hz). These variations do not affect normal circuit operation and remain within acceptable tolerance for standard thyristor applications.

Q: What is the TO-209AC package?

A: TO-209AC is a chassis stud mount package (also designated TO-94-4) designed for high-current applications requiring direct thermal coupling to heat sinks via threaded stud mounting.

Q: Are both parts suitable for -40°C to 125°C operation?

A: Yes. Both VS-80RIA80 and VS-80RIA80PBF maintain identical operating temperature specifications across the full range.

Q: Which part should be selected for new designs?

A: For new designs, VS-80RIA80PBF is recommended due to RoHS3 lead-free compliance, which aligns with current industry standards and regulatory requirements. Existing designs using VS-80RIA80 can transition to PBF without circuit modification.

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