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TV15C480JB-HF Equivalent & Substitute Parts
Part Overview
The TV15C480JB-HF is a transient voltage suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection applications. This bidirectional Zener diode operates with a 48V reverse standoff voltage and provides 77.4V clamping at peak pulse current. The part is actively produced and RoHS3 compliant, with unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility within the DO-214AB (SMC) package family.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TV15C480JB-HF |
| Manufacturer | Comchip Technology |
| Category | Transient Voltage Suppressors (TVS) |
| Type | Zener, Bidirectional |
| Voltage - Reverse Standoff (Typ) | 48V |
| Voltage - Breakdown (Min) | 53.3V |
| Voltage - Clamping (Max) @ Ipp | 77.4V |
| Current - Peak Pulse (10/1000µs) | 19.38A |
| Power - Peak Pulse | 1500W (1.5kW) |
| Package / Case | DO-214AB, SMC |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| RoHS Status | RoHS3 Compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following critical parameters:
- Voltage - Reverse Standoff (Typ): 48V
- Voltage - Breakdown (Min): 53.3V
- Voltage - Clamping (Max) @ Ipp: 77.4V
- Package / Case: DO-214AB, SMC (surface mount)
- Bidirectional Channels: 1
- Type: Zener
- RoHS Status: RoHS3 Compliant
All substitute parts listed maintain identical voltage specifications and package compatibility. Variations in peak pulse current (19.38A to 64.7A) and power dissipation (1.5kW to 5kW) represent higher-rated alternatives suitable for applications requiring enhanced transient protection capability. Operating temperature ranges vary between -55°C to 150°C and -55°C to 175°C, with all parts meeting the baseline thermal requirement.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff | Voltage - Clamping @ Ipp | Current - Peak Pulse | Power - Peak Pulse | Operating Temp (TJ) | Package | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| TV15C480JB-HF | Comchip Technology | 48V | 77.4V | 19.38A | 1500W | -55°C ~ 150°C | DO-214AB (SMC) | RoHS3 |
| 5.0SMDJ48CA | MDE Semiconductor Inc | 48V | 77.4V | 64.7A | 5000W | -55°C ~ 150°C | DO-214AB (SMCJ) | RoHS3 |
| 5.0SMLJ48CA-TP | Micro Commercial Co | 48V | 77.4V | 64.7A | 5000W | -55°C ~ 175°C | DO-214AB (SMC) | RoHS3 |
| SMC3K48CA-M3/57 | Vishay General Semiconductor - Diodes Division | 48V | 77.4V | 38.8A | 3000W | -55°C ~ 150°C | DO-214AB (SMCJ) | RoHS3 |
| SMCJ48CA | Fairchild Semiconductor | 48V | 77.4V | 19.4A | 1500W | -55°C ~ 150°C | DO-214AB (SMC) | Not specified |
| SMCJ48CA-13-F | Diodes Incorporated | 48V | 77.4V | 19.4A | 1500W | -55°C ~ 150°C | DO-214AB (SMC) | RoHS3 |
| SMCJ48CA-E3/57T | Vishay General Semiconductor - Diodes Division | 48V | 77.4V | 19.4A | 1500W | -55°C ~ 150°C | DO-214AB (SMCJ) | RoHS3 |
| SMCJ48CA-E3/9AT | Vishay General Semiconductor - Diodes Division | 48V | 77.4V | 19.4A | 1500W | -55°C ~ 150°C | DO-214AB (SMCJ) | RoHS3 |
| SMDJ48CA | Alpha & Omega Semiconductor Inc. | 48V | 77.4V | 38.8A | 3000W | -55°C ~ 150°C | DO-214AB (SMC) | RoHS3 |
Engineering Selection Recommendations
All listed substitute parts maintain active product status and RoHS3 compliance, meeting regulatory requirements for current applications. Selection between equivalent parts depends on application-specific transient current and power dissipation requirements:
Parts with 19.4A peak pulse current (SMCJ48CA variants, SMCJ48CA-13-F, SMCJ48CA-E3/57T, SMCJ48CA-E3/9AT) provide direct electrical equivalence to the TV15C480JB-HF at 1500W peak pulse power, suitable for standard overvoltage protection circuits.
Parts with 38.8A peak pulse current (SMC3K48CA-M3/57, SMDJ48CA) offer 3000W peak pulse power, appropriate for applications requiring enhanced transient suppression.
Parts with 64.7A peak pulse current (5.0SMDJ48CA, 5.0SMLJ48CA-TP) deliver 5000W peak pulse power for high-energy transient environments. The 5.0SMLJ48CA-TP extends operating temperature to 175°C, providing thermal margin in elevated-temperature applications.
All parts maintain identical voltage specifications (48V reverse standoff, 77.4V clamping) and surface-mount DO-214AB packaging, ensuring mechanical and electrical interchangeability within the specified parameter envelope.
Frequently Asked Questions (FAQ)
Q: What determines if a part can substitute for the TV15C480JB-HF?
A: Substitution requires matching voltage specifications (48V reverse standoff, 53.3V breakdown minimum, 77.4V clamping maximum), bidirectional Zener type, single-channel configuration, and DO-214AB (SMC) surface-mount package. Peak pulse current and power dissipation may exceed the original specification without affecting compatibility.
Q: Can I use a higher-rated part (higher current/power) as a substitute?
A: Yes. Parts with 38.8A or 64.7A peak pulse ratings are direct substitutes for the 19.38A-rated TV15C480JB-HF. Higher ratings provide enhanced transient protection capability without compromising circuit function, as voltage clamping characteristics remain identical.
Q: Are there packaging differences between substitute parts?
A: All parts use DO-214AB (SMC) surface-mount packaging. Supplier device package designations vary (SMC, SMCJ, SMCJ) but refer to the same physical form factor. Tape & Reel (TR) and Cut Tape (CT) packaging options affect supply format only, not component performance.
Q: What is the difference between SMCJ and SMC package designations?
A: Both designations refer to the DO-214AB surface-mount package. SMCJ is a variant designation used by some manufacturers (Vishay, Fairchild) but maintains identical physical dimensions and pin compatibility with SMC packages.
Q: Does operating temperature range affect substitution eligibility?
A: Operating temperature range does not prevent substitution. The TV15C480JB-HF operates -55°C to 150°C. Substitute parts with identical or extended ranges (-55°C to 175°C) are fully compatible. Selection should reflect application thermal requirements.
Q: Are all substitute parts RoHS3 compliant?
A: Most substitute parts carry RoHS3 compliance certification. SMCJ48CA from Fairchild Semiconductor does not specify RoHS status in available data. Verify compliance documentation for applications requiring regulatory certification.
Q: Can I mix different substitute parts in the same circuit?
A: Yes. All substitute parts maintain identical voltage specifications and package compatibility. Mixing parts with different current ratings (19.4A, 38.8A, 64.7A) in parallel or separate circuits does not create compatibility issues, as clamping voltage remains constant.
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