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8ETU04
Vishay General Semiconductor - Diodes Division
DIODE GEN PURP 400V 8A TO220AC
1319 Pcs New Original In Stock
Diode 400 V 8A Through Hole TO-220AC
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (367 Ratings)
8ETU04
Product Overview
12882240
DiGi Electronics Part Number
8ETU04-DGManufacturer
Vishay General Semiconductor - Diodes Division
8ETU04
Description
DIODE GEN PURP 400V 8A TO220ACInventory
1319 Pcs New Original In Stock
Diode 400 V 8A Through Hole TO-220AC
Quantity
Minimum 1
Minimum 1
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8ETU04 Technical Specifications
Category
Diodes, Rectifiers, Single Diodes
Packaging
-
Series
FRED Pt®
Product Status
Obsolete
Technology
Standard
Voltage - DC Reverse (Vr) (Max)
400 V
Current - Average Rectified (Io)
8A
Voltage - Forward (Vf) (Max) @ If
1.3 V @ 8 A
Speed
Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)
60 ns
Current - Reverse Leakage @ Vr
10 µA @ 400 V
Capacitance @ Vr, F
-
Mounting Type
Through Hole
Package / Case
TO-220-2
Supplier Device Package
TO-220AC
Operating Temperature - Junction
-65°C ~ 175°C
Base Product Number
8ETU04
Datasheet & Documents
Datasheets
Download 8ETU04 Product Specification (PDF)
HTML Datasheet
8ETU04-DG
Environmental & Export Classification
RoHS Status
RoHS non-compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
VS8ETU04
*8ETU04
VS8ETU04-DG
VS-8ETU04
VS-8ETU04-DG
Standard Package
1,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
VS-8ETU04-M3
Vishay General Semiconductor - Diodes Division
18757
VS-8ETU04-M3-DG
0.2829
Parametric Equivalent
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
I value DiGi Electronics' consistent emphasis on providing worthwhile prices.
Dec 02, 2025
Their dedication to customer satisfaction through support and logistics is commendable.
Dec 02, 2025
DiGi Electronics offers cost-efficient solutions that meet diverse needs.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the 8ETU04 in a high-temperature power supply due to its TO-220AC package and junction rating?
The 8ETU04 supports a junction temperature up to 175°C, making it suitable for high-temperature environments, but its TO-220AC through-hole package relies heavily on PCB thermal management. Engineers must ensure adequate copper pour and via stitching for heat dissipation, especially at full 8A average rectified current. Without proper thermal design, localized heating can accelerate aging or cause premature failure even below max ratings. Consider forced air cooling or derating current above 100°C ambient to maintain reliability in power supplies.
Why might the 8ETU04 be a risky replacement for the MUR840G in an existing fast-recovery boost converter design?
Although the 8ETU04 and MUR804G share similar voltage (400V) and current (8A) ratings, the 8ETU04 has a specified reverse recovery time (trr) of 60 ns compared to the MUR840G’s typical 50 ns. In high-frequency boost converters, this 10 ns difference can increase switching losses and EMI, potentially affecting efficiency and thermal performance. Additionally, the 8ETU04 is marked as obsolete and RoHS non-compliant, creating long-term supply and compliance risks—verify cross-reference suitability and consider redesigning with active pin-compatible alternatives like VS-8ETU04-M3 if available.
How does the 10 µA reverse leakage at 400V impact leakage current sensitivity in standby power designs using the 8ETU04?
The 8ETU04 exhibits 10 µA of reverse leakage at rated 400V, which may seem low but can be problematic in energy-efficient standby circuits (e.g., AC-DC adapters or IoT power rails). At elevated temperatures, leakage can increase exponentially, contributing to higher quiescent power draw. In multi-diode or series-configured setups, cumulative leakage may violate Energy Star or similar standards. Designers should model leakage over temperature and consider lower-leakage alternatives like STTH20R04D if sub-µA performance is required at high Vr.
Can the 8ETU04 reliably replace the DPG10I400PA in industrial motor drives despite differences in speed and packaging?
Replacing the DPG10I400PA with the 8ETU04 introduces trade-offs: while both handle 400V and similar average currents, the 8ETU04 is rated as fast recovery (60 ns trr) versus ultrafast or soft-recovery characteristics in the DPG10I400PA. This may increase voltage overshoot and EMI in inductive motor drive loads. Additionally, the DPG10I400PA’s SMD package offers better thermal cycling reliability in automated assemblies, whereas the 8ETU04’s through-hole TO-220AC may suffer from vibration-induced fatigue. Use snubbers and mechanical strain relief if substituting, and validate under load transients.
What reliability concerns arise from using the 8ETU04 in new designs given its obsolete status and lack of RoHS compliance?
Using the 8ETU04 in new designs poses significant supply chain and compliance risks—its 'Obsolete' status from Vishay indicates no future production, risking discontinuation and price volatility. Furthermore, its RoHS non-compliance restricts use in EU or consumer markets. For long-term reliability, consider FRED Pt® series replacements like VS-8ETU04-M3 (if available) or migrate to modern equivalents such as STTH20R04D with equivalent 400V, 8A specs, RoHS compliance, and soft-recovery performance. Inventory of 1300 pcs is insufficient for medium-volume production, so develop a second-source strategy early.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
8ETU04 CAD Models
Vishay General Semiconductor - Diodes Division 8ETU04 PCB symbols & footprints
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