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KSC2383OBU Equivalent & Substitute Parts
Part Overview
The KSC2383OBU is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 1 A, collector-emitter breakdown voltage of 160 V, and maximum power dissipation of 900 mW in a Through Hole TO-92-3 package.
The KSC2383OBU carries an Obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or repair requirements for systems utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Transistor Type | NPN | — |
| Current - Collector (Ic) (Max) | 1 | A |
| Voltage - Collector Emitter Breakdown (Max) | 160 | V |
| Vce Saturation (Max) @ Ib, Ic | 1.5V @ 50mA, 500mA | V |
| Current - Collector Cutoff (Max) | 1 | µA |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 100 @ 200mA, 5V | — |
| Power - Max | 900 | mW |
| Frequency - Transition | 100 | MHz |
| Operating Temperature (TJ) | 150 | °C |
| Mounting Type | Through Hole | — |
| Package / Case | TO-226-3, TO-92-3 Long Body | — |
Substitute Part Grouping Explanation
Substitution of the KSC2383OBU is determined by strict equivalence across the following electrical and mechanical parameters:
Electrical Parameters (Must Match):
- Transistor Type: NPN
- Maximum Collector Current (Ic): 1 A
- Collector-Emitter Breakdown Voltage: 160 V
- Vce Saturation: 1.5V @ 50mA, 500mA
- Collector Cutoff Current (ICBO): 1 µA
- DC Current Gain (hFE): 100 @ 200mA, 5V
- Maximum Power Dissipation: 900 mW
- Transition Frequency: 100 MHz
- Maximum Operating Temperature: 150°C
Mechanical Parameters (Must Match):
- Mounting Type: Through Hole
- Package: TO-92-3 Long Body
The KSC2383OTA qualifies as a direct substitute based on identical electrical specifications and compatible packaging. The primary distinction is product status and packaging format.
Parameter Comparison
| Parameter | KSC2383OBU | KSC2383OTA | Match |
|---|---|---|---|
| Manufacturer | onsemi | onsemi | Yes |
| Transistor Type | NPN | NPN | Yes |
| Current - Collector (Ic) (Max) | 1 A | 1 A | Yes |
| Voltage - Collector Emitter Breakdown (Max) | 160 V | 160 V | Yes |
| Vce Saturation (Max) @ Ib, Ic | 1.5V @ 50mA, 500mA | 1.5V @ 50mA, 500mA | Yes |
| Current - Collector Cutoff (Max) | 1 µA | 1 µA | Yes |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 100 @ 200mA, 5V | 100 @ 200mA, 5V | Yes |
| Power - Max | 900 mW | 900 mW | Yes |
| Frequency - Transition | 100 MHz | 100 MHz | Yes |
| Operating Temperature (TJ) | 150°C | 150°C | Yes |
| Mounting Type | Through Hole | Through Hole | Yes |
| Package / Case | TO-226-3, TO-92-3 Long Body | TO-226-3, TO-92-3 Long Body (Formed Leads) | Yes |
| Product Status | Obsolete | Active | Different |
| Packaging Format | Bulk | Cut Tape (CT) | Different |
| RoHS Status | Not specified | ROHS3 Compliant | Different |
Engineering Selection Recommendations
The KSC2383OTA is a direct electrical and mechanical equivalent to the KSC2383OBU. Selection between these parts should be based on the following factors:
Product Status: The KSC2383OBU is classified as Obsolete, while the KSC2383OTA maintains Active status. For new designs or ongoing production, the KSC2383OTA is the appropriate selection to ensure long-term component availability and supply chain stability.
Compliance and Certifications: The KSC2383OTA is ROHS3 Compliant, whereas compliance information for the KSC2383OBU is not specified. Both parts are REACH Unaffected and carry EAR99 ECCN classification.
Packaging Format: The KSC2383OBU is supplied in bulk packaging, while the KSC2383OTA is available in Cut Tape (CT) format. Packaging selection depends on assembly process requirements and inventory management practices.
Moisture Sensitivity: The KSC2383OBU carries MSL 1 (Unlimited), while the KSC2383OTA is Not Applicable for MSL. This distinction does not affect substitution compatibility.
All electrical parameters, including current ratings, voltage ratings, gain characteristics, and thermal specifications, are identical between the two parts.
Frequently Asked Questions (FAQ)
Q: Can the KSC2383OTA directly replace the KSC2383OBU in existing circuit designs?
A: Yes. The KSC2383OTA is electrically and mechanically equivalent to the KSC2383OBU. All critical parameters—collector current, breakdown voltage, saturation voltage, current gain, power dissipation, and transition frequency—are identical. The TO-92-3 package pinout and lead configuration are compatible.
Q: What is the primary reason to transition from KSC2383OBU to KSC2383OTA?
A: The KSC2383OBU is classified as Obsolete, creating supply chain risk. The KSC2383OTA maintains Active product status with significantly higher inventory availability (7637 Pcs vs. 796 Pcs), ensuring reliable sourcing for current and future production.
Q: Are there differences in packaging that affect circuit board assembly?
A: The KSC2383OBU is supplied in bulk packaging, while the KSC2383OTA is supplied in Cut Tape (CT) format. Both use the same TO-92-3 Through Hole package with identical lead spacing and pin configuration. The packaging format difference affects only the supply and handling method, not the component's physical or electrical characteristics on the circuit board.
Q: Does the KSC2383OTA meet current regulatory requirements?
A: Yes. The KSC2383OTA is ROHS3 Compliant and REACH Unaffected. The KSC2383OBU compliance status is not fully specified in available documentation. For applications requiring documented regulatory compliance, the KSC2383OTA is the recommended selection.
Q: Are the electrical specifications identical between these two parts?
A: Yes. Both parts share identical specifications: 1 A maximum collector current, 160 V breakdown voltage, 1.5V saturation voltage at specified conditions, 100 minimum DC current gain, 900 mW power dissipation, 100 MHz transition frequency, and 150°C maximum operating temperature.
Q: Can I use KSC2383OTA in applications originally designed for KSC2383OBU without circuit modifications?
A: Yes. No circuit modifications are required. The KSC2383OTA is a direct substitute with identical electrical performance and mechanical compatibility. Pin assignments, voltage ratings, current ratings, and thermal characteristics are equivalent.
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