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CD214B-T100ALF Equivalent & Substitute Parts
Part Overview
The CD214B-T100ALF is a unidirectional transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 100V reverse standoff voltage with 162V maximum clamping voltage and 3.7A peak pulse current capability in the DO-214AA (SMB) package format. The part is currently classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CD214B-T100ALF |
| Manufacturer | Bourns Inc. |
| Category | Transient Voltage Suppressors (TVS) |
| Type | Zener |
| Unidirectional Channels | 1 |
| Voltage - Reverse Standoff (Typ) | 100V |
| Voltage - Breakdown (Min) | 111V |
| Voltage - Clamping (Max) @ Ipp | 162V |
| Current - Peak Pulse (10/1000µs) | 3.7A |
| Power - Peak Pulse | 600W |
| Applications | General Purpose |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | DO-214AA, SMB |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the CD214B-T100ALF is determined by strict equivalence across the following critical electrical and mechanical parameters:
Primary Substitution Criteria:
- Voltage - Reverse Standoff (Typ): 100V
- Voltage - Breakdown (Min): 111V
- Voltage - Clamping (Max) @ Ipp: 162V
- Current - Peak Pulse (10/1000µs): 3.7A
- Power - Peak Pulse: 600W
- Package / Case: DO-214AA, SMB
- Unidirectional Channels: 1
- Type: Zener
Substitute Classification:
Direct Equivalents (identical electrical and mechanical specifications):
- SMBJ100A (MDD) - Active status, multiple manufacturers available
- SMBJ100A-TP (Micro Commercial Co) - Active status, tape & reel packaging
- TV06B101J-G (Comchip Technology) - Active status, tape & reel packaging
- TV06B101J-HF (Comchip Technology) - Active status, tape & reel packaging
Similar Alternatives (minor parameter variations within acceptable tolerance):
- SMBJP6KE120A-TP (Micro Commercial Co) - Voltage standoff 102V, clamping 165V, identical current rating
- SMBJP6KE130A-TP (Micro Commercial Co) - Voltage standoff 111V, clamping 179V, current 3.4A
Parameter Comparison
| Part Number | Manufacturer | VWM (Typ) | VBR (Min) | VC (Max) | Ipp (A) | Package | Status | Temp Range |
|---|---|---|---|---|---|---|---|---|
| CD214B-T100ALF | Bourns Inc. | 100V | 111V | 162V | 3.7A | DO-214AA, SMB | Obsolete | -55°C ~ 150°C |
| SMBJ100A | MDD | 100V | 111V | 162V | 3.7A | DO-214AA, SMB | Active | -50°C ~ 150°C |
| SMBJ100A-TP | Micro Commercial Co | 100V | 111V | 162V | 3.7A | DO-214AA, SMB | Active | -55°C ~ 175°C |
| SMBJP6KE120A-TP | Micro Commercial Co | 102V | 114V | 165V | 3.7A | DO-214AA, SMB | Active | -65°C ~ 150°C |
| SMBJP6KE130A-TP | Micro Commercial Co | 111V | 124V | 179V | 3.4A | DO-214AA, SMB | Active | -65°C ~ 150°C |
| TV06B101J-G | Comchip Technology | 100V | 111V | 162V | 3.7A | DO-214AA, SMB | Active | Not specified |
| TV06B101J-HF | Comchip Technology | 100V | 111V | 162V | 3.7A | DO-214AA, SMB | Active | Not specified |
Engineering Selection Recommendations
Preferred Direct Substitutes:
SMBJ100A-TP (Micro Commercial Co) is the primary recommended substitute. This part maintains identical electrical specifications to the CD214B-T100ALF while offering an extended operating temperature range (-55°C ~ 175°C) and active product status. Tape & reel packaging ensures compatibility with automated assembly processes. ROHS3 compliance and MSL 1 rating match the original component.
SMBJ100A (MDD) provides an alternative direct equivalent with active status and full electrical compatibility. Multiple sourcing options from this part number reduce supply chain risk for obsolete component replacement.
TV06B101J-G and TV06B101J-HF (Comchip Technology) are functionally equivalent alternatives with identical electrical parameters and DO-214AA packaging. Both maintain active product status and ROHS3 compliance.
Alternative Substitutes for Elevated Voltage Applications:
SMBJP6KE120A-TP offers a 2V higher reverse standoff voltage (102V) and 3V higher clamping voltage (165V) while maintaining 3.7A peak pulse current. This part is suitable for applications requiring slightly elevated voltage protection margins.
SMBJP6KE130A-TP provides the highest voltage rating (111V standoff, 179V clamping) with extended low-temperature operation (-65°C). Peak pulse current is reduced to 3.4A. This part is appropriate only for applications where the lower current rating is acceptable and higher voltage protection is required.
Compliance Considerations:
All recommended substitutes maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating. REACH status varies by manufacturer; verify REACH compliance requirements for your specific application and region.
Frequently Asked Questions (FAQ)
Q: Can SMBJ100A-TP directly replace CD214B-T100ALF without circuit modification?
A: Yes. SMBJ100A-TP maintains identical electrical specifications (100V standoff, 162V clamping, 3.7A peak pulse) and DO-214AA package format. The extended temperature range (-55°C ~ 175°C) provides additional operational margin. No circuit changes are required.
Q: What is the difference between SMBJ100A and SMBJ100A-TP?
A: Both parts have identical electrical specifications. SMBJ100A-TP is supplied in tape & reel packaging suitable for automated assembly, while SMBJ100A may be available in bulk or alternative packaging. Verify packaging requirements for your manufacturing process.
Q: Why are SMBJP6KE120A-TP and SMBJP6KE130A-TP listed as alternatives rather than direct substitutes?
A: These parts have different voltage ratings. SMBJP6KE120A-TP has a 2V higher standoff voltage and 3V higher clamping voltage. SMBJP6KE130A-TP has significantly higher voltage ratings (111V standoff, 179V clamping) and reduced peak pulse current (3.4A). These are suitable only for applications where the voltage differences are acceptable or beneficial.
Q: Is the DO-214AA package the same as SMB?
A: Yes. DO-214AA and SMB refer to the same surface-mount package format. All listed substitutes use this identical package, ensuring mechanical and electrical compatibility on PCBs designed for the CD214B-T100ALF.
Q: What is the significance of the obsolete status for CD214B-T100ALF?
A: Obsolete status indicates the part is no longer manufactured by Bourns Inc. All recommended substitutes have active product status, ensuring long-term availability and continued manufacturing support. Transition to an active equivalent part is necessary for new designs and ongoing procurement.
Q: Are there temperature range differences I should consider?
A: The CD214B-T100ALF operates from -55°C to 150°C. SMBJ100A-TP extends this to -55°C ~ 175°C, providing additional high-temperature margin. SMBJP6KE120A-TP and SMBJP6KE130A-TP extend low-temperature operation to -65°C. Select based on your application's thermal requirements.
Q: Do all substitutes have the same RoHS and MSL ratings?
A: All direct equivalents (SMBJ100A, SMBJ100A-TP, TV06B101J-G, TV06B101J-HF) maintain ROHS3 compliance and MSL 1 (unlimited) rating. SMBJP6KE130A-TP does not specify RoHS status in available data; verify compliance requirements before selection.
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