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CD214B-T10CALF Equivalent & Substitute Parts
Part Overview
The CD214B-T10CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This component features a 10V reverse standoff voltage with 17V maximum clamping voltage and 35.3A peak pulse current capability in the DO-214AA (SMB) package format. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CD214B-T10CALF |
| Manufacturer | Bourns Inc. |
| Category | Transient Voltage Suppressors (TVS) |
| Package / Case | DO-214AA, SMB |
| Voltage - Reverse Standoff (Typ) | 10V |
| Voltage - Breakdown (Min) | 11.1V |
| Voltage - Clamping (Max) @ Ipp | 17V |
| Current - Peak Pulse (10/1000µs) | 35.3A |
| Power - Peak Pulse | 600W |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the CD214B-T10CALF is determined by strict electrical and mechanical parameter matching within the TVS diode category. The critical parameters that define substitutability are:
Electrical Parameters:
- Voltage - Reverse Standoff (Typ): 10V
- Voltage - Breakdown (Min): 11V to 11.1V
- Voltage - Clamping (Max) @ Ipp: 17V
- Current - Peak Pulse (10/1000µs): 33A to 37A
- Power - Peak Pulse: 600W
Mechanical Parameters:
- Package / Case: DO-214AA, SMB
- Mounting Type: Surface Mount
- Bidirectional Channels: 1
Compliance Parameters:
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level (MSL): 1 (Unlimited)
Substitute parts are grouped into two categories: Direct Equivalents (identical electrical specifications) and Similar Parts (minor variations within acceptable operating ranges). All listed substitutes maintain the same package format, mounting type, and compliance certifications as the original part.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Operating Temperature | Product Status | Package / Case |
|---|---|---|---|---|---|---|---|---|---|
| CD214B-T10CALF | Bourns Inc. | 10V | 11.1V | 17V | 35.3A | 600W | -55°C ~ 150°C | Obsolete | DO-214AA, SMB |
| SMBJ10CA | MDD | 10V | 11V | 17V | 35.3A | 600W | -50°C ~ 150°C | Active | DO-214AA, SMB |
| SMBJ10CA-HR | Littelfuse Inc. | 10V | 11.1V | 17V | 35.3A | 600W | -65°C ~ 150°C | Active | DO-214AA, SMB |
| SMBJ10CA-HRA | Littelfuse Inc. | 10V | 11.1V | 17V | 35.3A | 600W | -65°C ~ 150°C | Active | DO-214AA, SMB |
| SMBJ10CA-TP | Micro Commercial Co | 10V | 11.1V | 17V | 35.3A | 600W | -55°C ~ 175°C | Active | DO-214AA, SMB |
| SMBJ10CA-TP-HF | Micro Commercial Co | 10V | 11.1V | 17V | 35.3A | 600W | -55°C ~ 175°C | Active | DO-214AA, SMB |
| SMBJ10CA-TR | STMicroelectronics | 10V | 11.1V | 17V | 37A | 600W | -55°C ~ 150°C | Active | DO-214AA, SMB |
| SMBJ11CA | Fairchild Semiconductor | 11V | 12.2V | 18.2V | 33A | 600W | -55°C ~ 150°C | Active | DO-214AA, SMB |
Engineering Selection Recommendations
Direct Equivalents (Recommended Primary Choices):
SMBJ10CA (MDD), SMBJ10CA-HR (Littelfuse Inc.), and SMBJ10CA-HRA (Littelfuse Inc.) provide direct electrical equivalence to the CD214B-T10CALF with identical reverse standoff voltage (10V), clamping voltage (17V), and peak pulse current (35.3A). All three are active products with ROHS3 compliance and MSL 1 rating. SMBJ10CA-HR and SMBJ10CA-HRA offer extended lower operating temperature range (-65°C minimum) compared to the original part (-55°C minimum), providing enhanced performance margin in cold environments.
Secondary Equivalents (Compatible with Minor Variations):
SMBJ10CA-TP (Micro Commercial Co) and SMBJ10CA-TP-HF (Micro Commercial Co) maintain identical electrical specifications with extended upper operating temperature range (-55°C ~ 175°C), suitable for applications requiring higher thermal tolerance. SMBJ10CA-TR (STMicroelectronics) provides equivalent performance with marginally higher peak pulse current (37A versus 35.3A), offering additional current handling capacity within the same 600W power dissipation envelope.
Limited Compatibility:
SMBJ11CA (Fairchild Semiconductor) operates at a higher voltage class (11V reverse standoff, 12.2V breakdown minimum, 18.2V clamping maximum) and is suitable only for applications where the higher voltage rating is acceptable or required. This part is not a direct substitute but represents an alternative voltage rating within the SMB package family.
All substitute parts maintain DO-214AA (SMB) package compatibility, surface mount configuration, and regulatory compliance (ROHS3, MSL 1) with the original CD214B-T10CALF.
Frequently Asked Questions (FAQ)
Q: Can SMBJ10CA directly replace CD214B-T10CALF in existing designs?
A: Yes. SMBJ10CA matches the critical electrical parameters: 10V reverse standoff voltage, 17V clamping voltage, and 35.3A peak pulse current. The DO-214AA (SMB) package is identical, and both are ROHS3 compliant with MSL 1 rating. The only consideration is the operating temperature range: SMBJ10CA operates from -50°C to 150°C versus the original -55°C to 150°C. For applications not requiring operation below -50°C, this substitution is direct.
Q: What is the difference between SMBJ10CA-HR and SMBJ10CA-HRA?
A: Both parts are manufactured by Littelfuse Inc. and provide identical electrical specifications and operating temperature range (-65°C ~ 150°C). The suffix designations (-HR versus -HRA) indicate different packaging or tape configurations. Both are active products suitable for direct substitution of the CD214B-T10CALF.
Q: Why does SMBJ10CA-TR list 37A peak pulse current instead of 35.3A?
A: SMBJ10CA-TR (STMicroelectronics) has a slightly higher peak pulse current specification (37A) while maintaining the same 600W power dissipation and 17V clamping voltage. This represents enhanced current handling capability and is compatible with the original design, as the higher current rating does not create a mismatch condition.
Q: Is SMBJ11CA a suitable substitute?
A: SMBJ11CA is not a direct substitute. It operates at a higher voltage class (11V reverse standoff versus 10V, 18.2V clamping versus 17V). Use SMBJ11CA only if the application circuit can tolerate the higher voltage rating or if the design specifically requires this voltage class.
Q: Are all substitute parts available in the same packaging options?
A: All listed substitute parts are available in DO-214AA (SMB) surface mount package. Packaging variants (Tape & Reel, Bulk, Cut Tape) differ by supplier but do not affect electrical compatibility. Verify packaging availability with your component distributor based on procurement requirements.
Q: What compliance certifications apply to these substitute parts?
A: All substitute parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original CD214B-T10CALF. REACH status varies by manufacturer but does not affect functional substitutability.
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