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CD214B-T13CALF Equivalent & Substitute Parts
Part Overview
The CD214B-T13CALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This bidirectional zener diode operates with a 13V reverse standoff voltage and provides 21.5V clamping at peak pulse current, delivering 600W peak pulse power dissipation in a compact DO-214AA (SMB) package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production support.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CD214B-T13CALF |
| Manufacturer | Bourns Inc. |
| Category | Transient Voltage Suppressors (TVS) |
| Product Status | Obsolete |
| Type | Zener |
| Bidirectional Channels | 1 |
| Voltage - Reverse Standoff (Typ) | 13V |
| Voltage - Breakdown (Min) | 14.4V |
| Voltage - Clamping (Max) @ Ipp | 21.5V |
| Current - Peak Pulse (10/1000µs) | 27.9A |
| Power - Peak Pulse | 600W |
| Operating Temperature Range | -55°C to 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | DO-214AA, SMB |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the CD214B-T13CALF are classified into two categories based on electrical parameter compatibility:
Direct Equivalents (Identical Electrical Parameters): Parts maintaining the exact 13V reverse standoff voltage, 21.5V clamping voltage, and 600W peak pulse power rating. These parts are pin-compatible and functionally interchangeable without circuit modification. The key matching parameters are: Voltage - Reverse Standoff (Typ) = 13V, Voltage - Clamping (Max) @ Ipp = 21.5V, Current - Peak Pulse = 27.9A to 29A, Power - Peak Pulse = 600W, Package = DO-214AA/SMB.
Similar Alternatives (Lower Voltage Rating): Parts with 12V reverse standoff voltage and 19.9V clamping voltage. These operate at a lower protection threshold and are suitable only when circuit design permits reduced overvoltage margin. The key parameters differ: Voltage - Reverse Standoff (Typ) = 12V, Voltage - Clamping (Max) @ Ipp = 19.9V, Current - Peak Pulse = 30.2A, Power - Peak Pulse = 600W, Package = DO-214AA/SMB.
Parameter Comparison
| Parameter | CD214B-T13CALF (Main) | SMBJ13CA (MDD) | SMBJ13CA-TP (MCC) | SMBJ13CA-TR (STM) | SMBJ14CA (MDD) | SMBJ12CA (EVVO) |
|---|---|---|---|---|---|---|
| Manufacturer | Bourns Inc. | MDD | Micro Commercial Co | STMicroelectronics | MDD | EVVO Semi |
| Product Status | Obsolete | Active | Active | Active | Active | Active |
| Voltage - Reverse Standoff (Typ) | 13V | 13V | 13V | 13V | 14V | 12V |
| Voltage - Breakdown (Min) | 14.4V | 14.4V | 14.4V | 14.4V | 15.6V | 13.3V |
| Voltage - Clamping (Max) @ Ipp | 21.5V | 21.5V | 21.5V | 21.5V | 23.2V | 19.9V |
| Current - Peak Pulse (10/1000µs) | 27.9A | 28A | 27.9A | 29A | 25.9A | 30.2A |
| Power - Peak Pulse | 600W | 600W | 600W | 600W | 600W | 600W |
| Operating Temperature Range | -55°C to 150°C | -50°C to 150°C | -55°C to 175°C | -55°C to 150°C | -50°C to 150°C | -65°C to 150°C |
| Package / Case | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB | DO-214AA, SMB |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
For Direct Replacement (Identical Electrical Performance):
SMBJ13CA (MDD), SMBJ13CA-TP (Micro Commercial Co), and SMBJ13CA-TR (STMicroelectronics) are direct functional equivalents to the obsolete CD214B-T13CALF. All three maintain the 13V reverse standoff voltage, 21.5V clamping voltage, and 600W peak pulse power rating. All are ROHS3 compliant with MSL 1 rating. SMBJ13CA-TP offers the widest operating temperature range (-55°C to 175°C), providing additional thermal margin. SMBJ13CA-TR is available in the highest quantity (12,800 pcs) and carries STMicroelectronics' TRANSIL™ series designation. SMBJ13CA (MDD) offers the largest inventory (20,461 pcs) among direct equivalents.
For Voltage-Variant Applications:
SMBJ14CA (MDD) operates at 14V reverse standoff with 23.2V clamping, suitable only when circuit design accommodates higher protection thresholds. SMBJ12CA (EVVO Semi) operates at 12V reverse standoff with 19.9V clamping, applicable only when reduced overvoltage margin is acceptable. Both maintain 600W peak pulse power and DO-214AA/SMB packaging. Selection of voltage variants requires explicit circuit design verification.
Compliance Considerations:
All recommended substitutes are ROHS3 compliant and carry MSL 1 (unlimited moisture sensitivity). SMBJ13CA-TR and SMBJ13CA-TP are REACH unaffected. All parts carry EAR99 ECCN classification and 8541.10.0080 HTSUS code, matching the original part's regulatory status.
Frequently Asked Questions (FAQ)
Q: Can SMBJ13CA (MDD) be used as a direct replacement for CD214B-T13CALF?
A: Yes. Both parts share identical electrical parameters: 13V reverse standoff voltage, 21.5V clamping voltage, 27.9A to 28A peak pulse current, and 600W peak pulse power. Both use DO-214AA/SMB packaging. The parts are functionally interchangeable without circuit modification.
Q: What is the difference between SMBJ13CA-TP and SMBJ13CA-TR?
A: Both maintain identical electrical specifications (13V standoff, 21.5V clamping, 600W power). SMBJ13CA-TP (Micro Commercial Co) operates from -55°C to 175°C, while SMBJ13CA-TR (STMicroelectronics) operates from -55°C to 150°C. SMBJ13CA-TP provides 25°C additional upper temperature margin. Packaging differs: SMBJ13CA-TP uses DO-214AA (SMB) while SMBJ13CA-TR uses SMB (DO-214AA) designation.
Q: Can SMBJ12CA replace CD214B-T13CALF?
A: SMBJ12CA is not a direct replacement. It operates at 12V reverse standoff and 19.9V clamping, compared to the original part's 13V and 21.5V specifications. This represents a 1V lower standoff threshold and 1.6V lower clamping voltage. Use SMBJ12CA only if circuit design explicitly permits reduced overvoltage protection margin.
Q: Can SMBJ14CA replace CD214B-T13CALF?
A: SMBJ14CA is not a direct replacement. It operates at 14V reverse standoff and 23.2V clamping, compared to the original part's 13V and 21.5V specifications. This represents a 1V higher standoff threshold and 1.7V higher clamping voltage. Use SMBJ14CA only if circuit design requires higher protection thresholds.
Q: Are all substitute parts RoHS compliant?
A: Yes. All recommended substitute parts carry ROHS3 compliance status, matching the original CD214B-T13CALF. All parts maintain MSL 1 (unlimited) moisture sensitivity level.
Q: What is the inventory status of direct equivalent parts?
A: SMBJ13CA (MDD) has 20,461 pcs in stock. SMBJ13CA-TP (Micro Commercial Co) has 1,550 pcs in stock. SMBJ13CA-TR (STMicroelectronics) has 12,800 pcs in stock. All direct equivalents are currently available from active manufacturers.
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