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CD214A-T16CALF Equivalent & Substitute Parts
Part Overview
The CD214A-T16CALF is a 16V Transient Voltage Suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface-mount applications. This component features a 26V maximum clamping voltage and 15.3A peak pulse current capability in a DO-214AC (SMA) package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production support. Substitute parts must maintain electrical compatibility across voltage ratings, clamping characteristics, and thermal performance while supporting the same surface-mount package format.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 16V | V |
| Voltage - Breakdown (Min) | 17.8V | V |
| Voltage - Clamping (Max) @ Ipp | 26V | V |
| Current - Peak Pulse (10/1000µs) | 15.3A | A |
| Power - Peak Pulse | 400W | W |
| Operating Temperature Range | -55°C ~ 150°C | °C (TJ) |
| Package / Case | DO-214AC, SMA | — |
| Type | Zener | — |
| Bidirectional Channels | 1 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the CD214A-T16CALF are classified into two categories based on electrical parameter alignment:
Direct Substitutes (Electrical Equivalents): Parts that maintain identical or near-identical electrical specifications across all critical parameters: 16V reverse standoff voltage, 17.8V minimum breakdown voltage, 26V maximum clamping voltage, and 15.3A–15.4A peak pulse current. These parts are interchangeable without circuit redesign.
Similar Substitutes (Functional Alternatives): Parts that operate within the same voltage protection class but with variations in one or more electrical parameters. These require circuit-level verification to confirm compatibility with the specific application requirements.
Key Parameters Determining Substitution:
- Voltage - Reverse Standoff (Typ): 16V ± tolerance
- Voltage - Clamping (Max) @ Ipp: 26V maximum
- Current - Peak Pulse (10/1000µs): ≥15.3A
- Package / Case: DO-214AC, SMA (mandatory)
- Mounting Type: Surface Mount (mandatory)
- Operating Temperature Range: Minimum -55°C, minimum +150°C
Parameter Comparison
| Part Number | Manufacturer | VWM (Typ) [V] | VBR (Min) [V] | VC (Max) @ Ipp [V] | Ipp (10/1000µs) [A] | Power [W] | Temp Range [°C] | Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|
| CD214A-T16CALF | Bourns Inc. | 16 | 17.8 | 26 | 15.3 | 400 | -55 ~ 150 | Obsolete | DO-214AC (SMA) |
| SMAJ16CA | MDD | 16 | 17.8 | 26 | 15.4 | 400 | -50 ~ 150 | Active | DO-214AC (SMA) |
| SMAJ16CA-TP | Micro Commercial Co | 16 | 17.8 | 26 | 15.3 | 400 | -55 ~ 175 | Active | DO-214AC (SMA) |
| TV04A160JB-HF | Comchip Technology | 16 | 17.8 | 26 | 15.38 | 400 | -55 ~ 150 | Active | DO-214AC (SMA) |
| SMAJ15CA-M3/61 | Vishay General Semiconductor - Diodes Division | 15 | 16.7 | 24.4 | 16.4 | 400 | -55 ~ 150 | Active | DO-214AC (SMA) |
| SMAJ15CA-M3/5A | Vishay General Semiconductor - Diodes Division | 15 | 16.7 | 24.4 | 16.4 | 400 | -55 ~ 150 | Active | DO-214AC (SMA) |
| SMAJ18CA-M3/61 | Vishay General Semiconductor - Diodes Division | 18 | 20 | 29.2 | 13.7 | 400 | -55 ~ 150 | Active | DO-214AC (SMA) |
Engineering Selection Recommendations
Direct Substitutes (Recommended for Pin-Compatible Replacement):
SMAJ16CA (MDD), SMAJ16CA-TP (Micro Commercial Co), and TV04A160JB-HF (Comchip Technology) are direct electrical equivalents with active product status. All three maintain the 16V reverse standoff voltage, 26V clamping voltage, and ≥15.3A peak pulse current. SMAJ16CA-TP offers the widest operating temperature range (-55°C to 175°C) and is suitable for applications requiring extended thermal performance. All direct substitutes are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings.
Similar Substitutes (Application-Dependent Selection):
SMAJ15CA-M3/61 and SMAJ15CA-M3/5A (Vishay TransZorb® series) operate at 15V reverse standoff with 24.4V clamping voltage. These parts are suitable only for applications where the lower voltage rating is acceptable and where the reduced clamping voltage does not compromise circuit protection margins. Higher peak pulse current (16.4A) provides additional margin.
SMAJ18CA-M3/61 (Vishay TransZorb® series) operates at 18V reverse standoff with 29.2V clamping voltage. This part is suitable only for applications requiring higher voltage protection thresholds. The reduced peak pulse current (13.7A) must be verified against application transient energy requirements.
All substitute parts are ROHS3 compliant and carry MSL 1 ratings, matching the original part's environmental compliance profile.
Frequently Asked Questions (FAQ)
Q: Can SMAJ16CA directly replace CD214A-T16CALF without circuit modification?
A: Yes. SMAJ16CA maintains identical voltage ratings (16V standoff, 26V clamping) and equivalent peak pulse current (15.4A vs. 15.3A). Both use DO-214AC (SMA) surface-mount packaging. The only difference is the minimum operating temperature (-50°C vs. -55°C for the original), which is acceptable for most applications unless the circuit operates below -50°C.
Q: Why are SMAJ15CA parts listed as substitutes if they have different voltage ratings?
A: SMAJ15CA parts (15V standoff, 24.4V clamping) are functional alternatives for applications where the lower protection threshold is acceptable. They are not direct replacements but may be suitable if circuit analysis confirms that 15V standoff and 24.4V clamping provide adequate overvoltage protection. This requires application-level verification.
Q: What is the difference between SMAJ16CA and SMAJ16CA-TP?
A: Both maintain identical electrical specifications (16V standoff, 26V clamping, 15.3A peak pulse). SMAJ16CA-TP offers an extended operating temperature range (-55°C to 175°C vs. -50°C to 150°C for SMAJ16CA) and is packaged in Tape & Reel format. Select SMAJ16CA-TP for applications requiring higher temperature performance or when Tape & Reel packaging is required for automated assembly.
Q: Is SMAJ18CA-M3/61 compatible with the original CD214A-T16CALF circuit?
A: SMAJ18CA-M3/61 is not a direct replacement. It operates at 18V standoff with 29.2V clamping voltage, which is higher than the original 16V/26V specification. Use only if circuit analysis confirms that higher protection thresholds do not compromise system performance. The reduced peak pulse current (13.7A) must also be verified against transient energy requirements.
Q: Are all substitute parts RoHS compliant?
A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the environmental compliance profile of the original CD214A-T16CALF.
Q: What packaging formats are available for substitute parts?
A: All substitute parts use DO-214AC (SMA) surface-mount packaging. SMAJ16CA-TP, SMAJ15CA-M3/61, SMAJ15CA-M3/5A, SMAJ18CA-M3/61, and TV04A160JB-HF are supplied in Tape & Reel (TR) format for automated assembly. Standard tube or bulk packaging may be available through direct manufacturer inquiry.
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