CJD112 TR13 Equivalent & Substitute Parts

Part Overview

The CJD112 TR13 is an NPN Darlington bipolar junction transistor manufactured by Central Semiconductor Corp, rated for 100 V collector-emitter breakdown voltage and 2 A maximum collector current in a surface mount DPAK package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates across a temperature range of -65°C to 150°C and delivers 1.75 W maximum power dissipation with a 25 MHz transition frequency.

Substiute Parts

CJD112 TR13

Central Semiconductor CorpIn Stock: 1031CJD112 TR13 Datasheet

Current PartRFQ

NJVMJD112T4G

onsemiIn Stock: 20219NJVMJD112T4G Datasheet

UpgradeRFQ

MJD112RLG

onsemiIn Stock: 727MJD112RLG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CJD112 TR13 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Transistor type: NPN - Darlington configuration
• Maximum collector current: 2 A
• Collector-emitter breakdown voltage: 100 V
• Vce saturation characteristics: 3 V @ 40 mA, 4 A
• Collector cutoff current: 20 µA maximum
• DC current gain (hFE): minimum 1000 @ 2 A, 3 V
• Transition frequency: 25 MHz
• Operating temperature range: -65°C to 150°C

Mechanical Equivalence Criteria:

• Package type: TO-252-3 DPAK (2 Leads + Tab), SC-63
• Mounting type: Surface Mount
• Supplier device package: DPAK

Compliance Equivalence Criteria:

• RoHS3 compliance
• MSL rating: 1 (Unlimited)
• REACH unaffected status

Substitute parts must satisfy all electrical parameters within the specified tolerances, maintain identical mechanical packaging, and meet all regulatory compliance requirements. Parts are grouped based on product status and power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

NJVMJD112T4G (onsemi) - Upgrade Substitute:

The NJVMJD112T4G is an active product manufactured by onsemi that satisfies all electrical and mechanical equivalence criteria for the obsolete CJD112 TR13. This part provides enhanced power dissipation capability at 20 W maximum, compared to 1.75 W in the original part. All core electrical parameters—collector current, breakdown voltage, saturation characteristics, current gain, and transition frequency—are identical. The part maintains the same DPAK surface mount package, operating temperature range, and regulatory compliance status (ROHS3, MSL 1). The upgrade designation reflects the superior thermal performance, which provides design margin in applications where power dissipation is a consideration. This part is supplied in Tape & Reel packaging.

MJD112RLG (onsemi) - Parametric Equivalent:

The MJD112RLG is an active product manufactured by onsemi that provides complete parametric equivalence to the CJD112 TR13. All electrical specifications match exactly, including the 1.75 W maximum power rating. This part maintains identical DPAK packaging, operating temperature range, and regulatory compliance. The MJD112RLG is supplied in Cut Tape & Digi-Reel packaging, matching the original part's packaging format. This part is suitable for direct replacement in applications where power dissipation characteristics must remain unchanged from the original design.

Both substitute parts are active products with established supply chains, eliminating obsolescence risk associated with the CJD112 TR13.

Frequently Asked Questions (FAQ)

Q: Can NJVMJD112T4G and MJD112RLG be used interchangeably with CJD112 TR13?

A: Both parts satisfy all electrical and mechanical equivalence criteria. The primary difference is power dissipation: NJVMJD112T4G provides 20 W capability versus 1.75 W in both CJD112 TR13 and MJD112RLG. Selection depends on thermal design requirements. If the original design operates within 1.75 W power dissipation, either substitute is suitable. If higher power dissipation margin is required, NJVMJD112T4G is appropriate.

Q: Are the substitute parts available in the same packaging format as CJD112 TR13?

A: CJD112 TR13 and MJD112RLG are both supplied in Cut Tape & Digi-Reel packaging. NJVMJD112T4G is supplied in Tape & Reel format. All three parts use the identical DPAK surface mount package (TO-252-3, SC-63), ensuring mechanical compatibility on PCBs.

Q: Do the substitute parts meet the same regulatory compliance as the original part?

A: Yes. Both NJVMJD112T4G and MJD112RLG are ROHS3 compliant, carry MSL rating 1 (Unlimited), and maintain REACH unaffected status, matching the compliance profile of CJD112 TR13.

Q: What is the key electrical difference between the substitute parts?

A: NJVMJD112T4G and MJD112RLG are electrically identical to CJD112 TR13 across all specified parameters: 2 A collector current, 100 V breakdown voltage, 1000 hFE minimum gain, 25 MHz transition frequency, and -65°C to 150°C operating range. The only difference is maximum power dissipation: NJVMJD112T4G is rated 20 W while MJD112RLG is rated 1.75 W.

Q: Why is CJD112 TR13 classified as obsolete?

A: Product status reflects manufacturer discontinuation. Substitute parts from onsemi provide equivalent or enhanced functionality with active production status and established supply availability.

Q: Are there any thermal considerations when selecting between the substitute parts?

A: Thermal performance depends on application power dissipation and PCB thermal design. If the circuit dissipates power within the 1.75 W rating, both MJD112RLG and CJD112 TR13 are thermally equivalent. NJVMJD112T4G provides additional thermal margin due to its 20 W rating, suitable for designs requiring higher power dissipation capability or enhanced thermal stability.