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CD214B-T7.0CALF Equivalent & Substitute Parts
Part Overview
The CD214B-T7.0CALF 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 7V reverse standoff voltage, 12V maximum clamping voltage, and 50A peak pulse current capability in a DO-214AA (SMB) package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued circuit protection functionality.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Reverse Standoff Voltage (Typ) | 7V | V |
| Breakdown Voltage (Min) | 7.78V | V |
| Clamping Voltage (Max) @ Ipp | 12V | V |
| Peak Pulse Current (10/1000µs) | 50A | A |
| Peak Pulse Power | 600W | W |
| Package / Case | DO-214AA, SMB | — |
| Bidirectional Channels | 1 | — |
| Operating Temperature Range | -55°C to 150°C | °C (TJ) |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the CD214B-T7.0CALF is determined by strict equivalence across the following electrical and mechanical parameters:
Critical Matching Parameters:
- Reverse Standoff Voltage: 7V (±tolerance)
- Breakdown Voltage (Min): 7.78V
- Clamping Voltage (Max) @ Ipp: 12V
- Peak Pulse Current: 50A minimum
- Peak Pulse Power: 600W
- Package: DO-214AA (SMB)
- Bidirectional Channels: 1
- Mounting Type: Surface Mount
Direct Equivalents maintain all electrical specifications within the stated tolerances and are classified as active products. Similar Parts exhibit variations in one or more electrical parameters (voltage ratings or current ratings) and are suitable only when circuit design permits the parameter deviation.
Parameter Comparison
| Part Number | Manufacturer | Reverse Standoff (V) | Breakdown Min (V) | Clamp Max @ Ipp (V) | Peak Pulse Current (A) | Peak Pulse Power (W) | Package | Product Status | Operating Temp (°C) | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| CD214B-T7.0CALF | Bourns Inc. | 7 | 7.78 | 12 | 50 | 600 | DO-214AA, SMB | Obsolete | -55 to 150 | ROHS3 Compliant |
| SMBJ7.0CA | MDD | 7 | 7.78 | 12 | 50 | 600 | DO-214AA, SMB | Active | -50 to 150 | ROHS3 Compliant |
| SMBJ7.0CA-TP | Micro Commercial Co | 7 | 7.78 | 12 | 50 | 600 | DO-214AA, SMB | Active | -55 to 175 | ROHS3 Compliant |
| SMBJ7V0CA | Taiwan Semiconductor Corporation | 7 | 7.78 | 12 | 50 | 600 | DO-214AA, SMB | Active | -55 to 150 | ROHS3 Compliant |
| P6SMB8.2CA | Taiwan Semiconductor Corporation | 7.02 | 7.79 | 12.1 | 52 | 600 | DO-214AA, SMB | Active | -55 to 150 | ROHS3 Compliant |
| P6SMB8.2CA-E3/52 | Vishay General Semiconductor - Diodes Division | 7.02 | 7.79 | 12.1 | 49.6 | 600 | DO-214AA, SMB | Active | -65 to 150 | ROHS3 Compliant |
| SMBJ6.5CA | EVVO Semi | 6.5 | 7.22 | 11.2 | 53.6 | 600 | DO-214AA, SMB | Active | -65 to 150 | ROHS3 Compliant |
| SMBJ6.5CA/54 | Vishay General Semiconductor - Diodes Division | 6.5 | 7.22 | 11.2 | 53.6 | 600 | DO-214AA, SMB | Active | -55 to 150 | RoHS non-compliant |
| P6SMB6.8CA-M3/52 | Vishay General Semiconductor - Diodes Division | 5.8 | 6.45 | 10.5 | 57.1 | 600 | DO-214AA, SMB | Active | -65 to 150 | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Equivalents (Recommended for Drop-In Replacement):
SMBJ7.0CA (MDD), SMBJ7.0CA-TP (Micro Commercial Co), and SMBJ7V0CA (Taiwan Semiconductor Corporation) provide complete electrical and mechanical equivalence to the CD214B-T7.0CALF. All three are active products with ROHS3 compliance. SMBJ7.0CA-TP offers the widest operating temperature range (-55°C to 175°C), providing additional thermal margin. SMBJ7.0CA and SMBJ7V0CA maintain the original temperature specification (-55°C to 150°C).
Similar Parts (Application-Dependent Selection):
P6SMB8.2CA and P6SMB8.2CA-E3/52 exhibit minor voltage parameter variations (7.02V standoff, 12.1V clamp) and slightly elevated current ratings (49.6–52A). These parts are suitable when circuit design tolerates the 0.02V standoff increase and 12.1V clamping voltage. P6SMB8.2CA-E3/52 provides extended temperature range (-65°C to 150°C).
SMBJ6.5CA and SMBJ6.5CA/54 feature reduced voltage ratings (6.5V standoff, 11.2V clamp) and higher current capability (53.6A). These are applicable only in circuits where lower clamping voltage is acceptable. SMBJ6.5CA/54 is RoHS non-compliant and should be avoided in regulated applications.
P6SMB6.8CA-M3/52 exhibits the lowest voltage ratings (5.8V standoff, 10.5V clamp) with highest current capacity (57.1A) and is suitable only for circuits designed for lower protection thresholds.
Frequently Asked Questions (FAQ)
Q: Can SMBJ7.0CA directly replace CD214B-T7.0CALF?
A: Yes. SMBJ7.0CA maintains identical electrical specifications (7V standoff, 7.78V breakdown, 12V clamp, 50A peak current) and package format (DO-214AA SMB). Both are ROHS3 compliant with MSL 1 rating. The only difference is product status (active vs. obsolete) and operating temperature minimum (-50°C vs. -55°C).
Q: What is the difference between SMBJ7.0CA-TP and SMBJ7V0CA?
A: Both provide complete electrical equivalence to the original part. SMBJ7.0CA-TP (Micro Commercial Co) operates to 175°C maximum junction temperature, while SMBJ7V0CA (Taiwan Semiconductor Corporation) operates to 150°C. Selection depends on thermal environment requirements.
Q: Can P6SMB8.2CA be used as a substitute?
A: P6SMB8.2CA is electrically similar but not equivalent. It features 7.02V standoff (vs. 7V), 12.1V clamp (vs. 12V), and 52A peak current (vs. 50A). Substitution is valid only if circuit design permits these parameter variations. Verify that the 0.1V higher clamping voltage does not exceed downstream component ratings.
Q: Why is SMBJ6.5CA listed as a similar part rather than a direct equivalent?
A: SMBJ6.5CA has a lower reverse standoff voltage (6.5V vs. 7V) and lower clamping voltage (11.2V vs. 12V). This part triggers protection at lower voltage thresholds and is suitable only for circuits designed to accept reduced protection voltage margins.
Q: Are all substitute parts available in the same packaging?
A: Yes. All listed parts use DO-214AA (SMB) surface mount package. Packaging variants (Tape & Reel, Cut Tape, Tape & Box) affect procurement and handling but do not alter electrical or mechanical compatibility.
Q: What compliance certifications should I verify for my application?
A: All direct equivalents and most similar parts are ROHS3 compliant. SMBJ6.5CA/54 is RoHS non-compliant and must be avoided in regulated markets. All parts carry REACH Unaffected or REACH Affected status as indicated; verify against your supply chain requirements.
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