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Product Overview
MUR3060PT is a 30A 600V common-cathode dual fast-recovery rectifier in TO-247AD. Each 15A path supports positive-output rectification in transformer-fed power stages.
The 30A total device rating comprises two 15A diode paths. Evaluate each branch at its own current waveform and operating temperature when calculating conduction loss and the required cooling.
Key Features
● 600V repetitive peak reverse voltage and two 15A diode paths.
● 50ns maximum reverse-recovery time under the specified 0.5A test condition.
● 1.7V maximum forward voltage at 15A and 25°C.
● 200A non-repetitive surge current per diode for a 8.3ms pulse.
Key Specifications
| Parameter | Value and conditions |
| Configuration / package | Dual common cathode / TO-247AD |
| Forward current | 30A per device; 15A per diode |
| Repetitive peak reverse voltage | 600V |
| Forward voltage | 1.16V typ at IF = 15A, Tj = 125°C 1.7V max at IF = 15A, Tj = 25°C |
| Reverse recovery time | 50ns max; Tj = 25°C, IF = 0.5A, IR = 1.0A, Irr = 0.25A |
| Surge current | 200A per diode; non-repetitive, t = 8.3ms |
| Junction to case thermal resistance | 1.1°C/W |
| Junction temperature range | −55°C to +150°C |
Current capability depends on case temperature and cooling. Use the datasheet derating curve when determining operating current.
Electrical Configuration and Pinout
Two separate anodes connect to a shared cathode. With the marking face toward you and the leads pointing down, the lead functions are A1, K and A2 from left to right. The exposed metal tab is also connected to K.
Figure 1. Circuit and connection detail from the MUR3060PT datasheet, page 1. A = anode; K = cathode.
| Connection | Function |
| Left lead | A1 — first diode anode |
| Center lead | K — common cathode |
| Right lead | A2 — second diode anode |
| Metal tab | K — electrically connected to the common cathode |
Typical Applications
● Higher-voltage center-tapped SMPS outputs.
● Industrial charger converters.
● UPS DC conversion stages.
600V Blocking for Center Tapped Outputs
The 600V voltage class and TO-247AD body provide a different electrical and mounting option from MUR3040CT. The per-diode current remains 15A, so select the part using reverse peaks, branch current, forward loss and the cooling interface together.
Design Notes
Evaluate each diode at its own current waveform and duty cycle. The 30A total device rating does not mean one junction can carry 30A. Check reverse-voltage peaks, including switching transients, against the 600V rating.
The metal tab carries the common cathode potential. If the heatsink must remain at a different potential, use an appropriate insulating mounting interface and include its thermal resistance.
The 50ns recovery limit uses the low-current test condition in the parameter table. Evaluate recovery at the application current and temperature. The 200A surge specification is non-repetitive and must not be used as a repetitive overload rating.
FAQ
No. PT is common cathode and PA is common anode; their shared nodes and tab potentials are opposite.
The datasheet states 30 A per device and 15 A per diode. The circuit’s duty cycle determines how the package total is used.
It is junction-to-case thermal resistance. Add interface and heatsink resistances to estimate junction temperature.
Measure forward-current waveforms, reverse-recovery current, voltage overshoot, common-tab temperature, and insulation stress.
