CLLR1-10 BK Equivalent & Substitute Parts

Part Overview

The CLLR1-10 BK is a general-purpose rectifier diode manufactured by Central Semiconductor Corp, rated for 1000 V DC reverse voltage and 1 A average rectified current in a surface mount MELF package. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. The MELF package format and electrical specifications define the substitution parameters for this diode category.

Substiute Parts

CLLR1-10 BK

Central Semiconductor CorpIn Stock: 1066CLLR1-10 BK Datasheet

Current PartRFQ

CMR1-10M BK

Central Semiconductor CorpIn Stock: 1037CMR1-10M BK Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CLLR1-10 BK is determined by electrical parameter equivalence and package compatibility. The primary substitute identified is the CMR1-M BK, which maintains the same voltage rating (1000 V), current rating (1 A), forward voltage characteristic (1.1 V @ 1 A), and recovery speed classification (Standard Recovery >500ns, > 200mA). Both components are surface mount rectifier diodes manufactured by Central Semiconductor Corp.

The key substitution criteria are:

• Voltage - DC Reverse (Vr) (Max): 1000 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A maximum
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Mounting Type: Surface Mount

The primary difference between the main part and substitute is the package format: the CLLR1-10 BK uses MELF (DO-213AB), while the CMR1-10M BK uses SMA (DO-214AC). This distinction affects board layout and mechanical integration but does not alter electrical substitutability when package footprint compatibility is confirmed in the target application.

Parameter Comparison

Engineering Selection Recommendations

The CMR1-10M BK is the primary substitute for the obsolete CLLR1-10 BK. Both components are manufactured by Central Semiconductor Corp and share identical electrical specifications for voltage rating, current rating, forward voltage, and recovery speed characteristics. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The CMR1-10M BK exhibits lower reverse leakage current (5 µA versus 10 µA at 1000 V), which represents an improvement in leakage performance. The operating temperature range of the substitute extends to 150°C maximum junction temperature, compared to 175°C for the main part; this difference should be evaluated against specific application thermal requirements.

The primary consideration for substitution is package format compatibility. The CLLR1-10 BK uses the MELF (DO-213AB) package, while the CMR1-10M BK uses the SMA (DO-214AC) package. These packages have different physical dimensions and board footprints. Substitution requires confirmation that the target application's printed circuit board layout and mechanical assembly can accommodate the SMA package format.

Both components carry the same ECCN (EAR99) and HTSUS (8541.10.0080) classifications, indicating equivalent export control and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the CMR1-10M BK directly replace the CLLR1-10 BK in all applications?

A: Electrical substitution is valid based on matching voltage rating (1000 V), current rating (1 A), forward voltage (1.1 V @ 1 A), and recovery speed characteristics. However, package format differs: CLLR1-10 BK uses MELF (DO-213AB) while CMR1-10M BK uses SMA (DO-214AC). Direct replacement requires board layout compatibility with the SMA package footprint.

Q: What is the significance of the reverse leakage current difference?

A: The CMR1-10M BK exhibits 5 µA reverse leakage at 1000 V, compared to 10 µA for the CLLR1-10 BK. This represents lower leakage in the substitute part, which is beneficial for applications sensitive to reverse current. Both values remain within acceptable ranges for general-purpose rectifier applications.

Q: Are there temperature rating implications for substitution?

A: The CLLR1-10 BK operates to 175°C junction temperature, while the CMR1-10M BK operates to 150°C. Applications requiring operation above 150°C junction temperature cannot use the substitute part. Applications operating below 150°C are unaffected by this difference.

Q: What package considerations apply to substitution?

A: MELF (DO-213AB) and SMA (DO-214AC) packages have different physical dimensions and land patterns. Substitution requires verification that the target PCB design accommodates the SMA package. Mechanical assembly processes may also differ between package types.

Q: Is the CMR1-10M BK available in production quantities?

A: Yes. The CMR1-10M BK is classified as active product status with documented inventory availability, ensuring supply chain continuity compared to the obsolete CLLR1-10 BK.

Q: Do export control classifications differ between the main part and substitute?

A: No. Both the CLLR1-10 BK and CMR1-10M BK carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, indicating equivalent export control and tariff treatment.