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BT151-500RT,127 is listed in the Scrs range at ChipApex. The manufacturer field lists WeEn Semiconductors. Its product description is SCR 500V 12.5A TO220AB. Review the specifications below when checking this part for your BOM.
Scrs specifications for BT151-500RT,127
- Description：SCR 500V 12.5A TO220AB
- Series：-
- Mfr：WeEn Semiconductors
- Package：Tube
- Voltage - Off State：500 V
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：15 mA
- Current - Hold (Ih) (Max)：20 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：120A, 132A
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220AB
- Voltage - On State (Vtm) (Max)：1.75 V
- Current - On State (It (AV)) (Max)：8:00 AM
- Current - On State (It (RMS)) (Max)：12.5 A
- Current - Off State (Max)：500 µA
Scrs datasheet and documents for BT151-500RT,127
Scrs Overview
The BT151-500RT,127 is a planar passivated Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It is housed in a SOT78 (TO-220AB) plastic package designed for applications requiring high bidirectional blocking voltage and thermal cycling performance. Key electrical parameters include a repetitive peak off-state voltage of 500 V, an on-state RMS current of 12.5 A, and a non-repetitive peak surge current of 120 A. The device supports a maximum junction temperature of 150°C and features a gate trigger current of 15 mA.
Scrs Feature Summary
- Planar passivated silicon construction for robust bidirectional blocking voltage capability
- High thermal cycling performance suitable for demanding industrial environments
- SOT78 (TO-220AB) plastic package with high junction temperature rating
Scrs Applications
- Motor control systems
- Industrial heating controls
- Static switching applications
Scrs Procurement Notes
Verify the specific suffix '127' to confirm the horizontal rail pack packing method. Ensure the TO-220AB package variant matches the required PCB footprint. Confirm RoHS compliance status as per the latest manufacturer documentation before finalizing procurement specifications.
Scrs Selection Notes
Select this component when a higher junction temperature rating of 150°C is required compared to standard variants. The 12.5 A RMS current rating provides adequate margin for moderate power applications. Verify that the 300 V/µs dV/dt rating meets the circuit's noise immunity requirements.
Scrs Part Context
This part belongs to the BT151 series of standard recovery SCRs produced by WeEn Semiconductors. The manufacturer is a joint venture between NXP Semiconductors and Beijing JianGuang Asset Management Co., Ltd. The series is widely used in general-purpose power control applications requiring reliable thyristor switching.
Scrs Replacement Considerations
Compatible substitutes include the BT151-500R,127 and BT151-500C,127. Verify that alternative packages such as TO-220F or DPAK are mechanically compatible with the existing design constraints.
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