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Product Overview
DSEA1602F integrates two 8A fast-recovery diodes in a common-anode ITO-220AB package. Its 16A total device rating and 200V reverse-voltage rating suit negative center-tapped outputs and polarity-specific rectifier networks.
The 16A total device rating comprises two 8A diode paths. Evaluate each branch at its own current waveform and operating temperature when calculating conduction loss and the required cooling.
Key Features
● 200V repetitive peak reverse voltage and two 8A diode paths.
● 35ns maximum reverse-recovery time under the specified 0.5A test condition.
● 1.05V maximum forward voltage at 8A and 25°C.
● 125A non-repetitive surge current for a 8.3ms pulse.
Key Specifications
| Parameter | Value and conditions |
| Configuration / package | Dual common anode / ITO-220AB |
| Forward current | 16A per device; 8A per diode |
| Repetitive peak reverse voltage | 200V |
| Forward voltage | 0.85V typ at IF = 8A, Tj = 125°C 1.05V max at IF = 8A, Tj = 25°C |
| Reverse recovery time | 35ns max; Tj = 25°C, IF = 0.5A, IR = 1.0A, Irr = 0.25A |
| Surge current | 125A; non-repetitive, t = 8.3ms |
| Junction to case thermal resistance | 4.5°C/W |
| Junction temperature range | −55°C to +150°C |
Current and thermal limits must be evaluated for the complete assembly. IFSM is a non-repetitive pulse rating, not a repetitive operating-current rating.
Electrical Configuration and Pinout
Two separate cathodes connect to a shared anode. With the marking face toward you and the leads pointing down, the lead functions are K1, A and K2 from left to right. The ITO-220AB package has an insulated outer mounting surface.
Figure 1. Circuit and connection detail from the DSEA1602F datasheet, page 1. A = anode; K = cathode.
| Connection | Function |
| Left lead | K1 — first diode cathode |
| Center lead | A — common anode |
| Right lead | K2 — second diode cathode |
| Mounting surface | Insulated package surface; verify assembly insulation requirements |
Typical Applications
● Negative center-tapped output rectification.
● Bipolar industrial power supplies.
● Common-anode current-steering circuits.
Common Anode Rectification for Negative Outputs
The shared anode provides the negative rectified output in a suitable center-tapped secondary circuit, while the two cathodes connect to the winding ends. The insulated package format supports mounting where an exposed active tab is undesirable.
Design Notes
Evaluate each diode at its own current waveform and duty cycle. The 16A total device rating does not mean one junction can carry 16A. Check reverse-voltage peaks, including switching transients, against the 200V rating.
The insulated package surface does not by itself establish complete equipment isolation. Evaluate the thermal interface, creepage, clearance and dielectric requirements of the finished assembly.
The 35ns recovery limit uses the low-current test condition in the parameter table. Evaluate recovery at the application current and temperature. The 125A surge specification is non-repetitive and must not be used as a repetitive overload rating.
FAQ
No. The supplied product data identifies a 16 A dual with two 8 A paths in a common-anode configuration.
The mounting face is insulated from the internal node, simplifying some heatsink arrangements, but the 4.5°C/W thermal path still limits junction temperature.
No direct substitution should be assumed. DSEA is common anode and DSEK is common cathode, so their internal connections are opposite.
