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CD214C-T7.5ALF Equivalent & Substitute Parts
Part Overview
The CD214C-T7.5ALF 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 7.5V reverse standoff voltage with a 12.9V maximum clamping voltage and 116.3A peak pulse current capability in a DO-214AB (SMC) package. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CD214C-T7.5ALF |
| Manufacturer | Bourns Inc. |
| Category | Transient Voltage Suppressors (TVS) |
| Type | Zener |
| Unidirectional Channels | 1 |
| Voltage - Reverse Standoff (Typ) | 7.5V |
| Voltage - Breakdown (Min) | 8.33V |
| Voltage - Clamping (Max) @ Ipp | 12.9V |
| Current - Peak Pulse (10/1000µs) | 116.3A |
| Power - Peak Pulse | 1500W |
| Package / Case | DO-214AB, SMC |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the CD214C-T7.5ALF is determined by the following critical parameters:
- Voltage - Reverse Standoff (Typ): 7.5V
- Voltage - Clamping (Max) @ Ipp: 12.9V
- Current - Peak Pulse (10/1000µs): 116.3A (±tolerance acceptable)
- Power - Peak Pulse: 1500W
- Package / Case: DO-214AB, SMC
- Mounting Type: Surface Mount
- Unidirectional Channels: 1
- Type: Zener
Parts are classified into three substitution categories:
Direct Substitutes: Identical electrical specifications and package, with active product status and full compliance certifications.
Upgrade Substitutes: Enhanced specifications (extended temperature range, improved reliability series) while maintaining core electrical parameters and package compatibility.
Similar Substitutes: Parts with matching core voltage and clamping specifications but variations in peak pulse current or power dissipation that may require application-level verification.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Package / Case | Operating Temperature | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| CD214C-T7.5ALF | Bourns Inc. | 7.5V | 12.9V | 116.3A | 1500W | DO-214AB, SMC | -55°C ~ 150°C | Obsolete | ROHS3 Compliant |
| SMCJ7.5A | Taiwan Semiconductor Corporation | 7.5V | 12.9V | 122A | 1500W | DO-214AB, SMC | -55°C ~ 150°C | Active | ROHS3 Compliant |
| SMCJ7.5A-HR | Littelfuse | 7.5V | 12.9V | 116.3A | 1500W | DO-214AB, SMC | -65°C ~ 150°C | Active | ROHS3 Compliant |
| SMCJ7V5A | Fairchild Semiconductor | 7.5V | 12.9V | 116.3A | 1500W | DO-214AB, SMC | Not specified | Active | Not specified |
| SMCJ8.5A-13-F | Diodes Incorporated | 8.5V | 14.4V | 104.2A | 1500W | DO-214AB, SMC | -55°C ~ 150°C | Active | ROHS3 Compliant |
| SMDJ7.5A | Alpha & Omega Semiconductor Inc. | 7.5V | 12.9V | 232.6A | 3000W | DO-214AB, SMC | -55°C ~ 150°C | Active | ROHS3 Compliant |
| TV15C7V5J-HF | Comchip Technology | 7.5V | 12.9V | 116.28A | 1500W | DO-214AB, SMC | -55°C ~ 150°C | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: SMCJ7.5A (Taiwan Semiconductor Corporation)
The SMCJ7.5A is the preferred direct substitute for the obsolete CD214C-T7.5ALF. It maintains identical voltage specifications (7.5V reverse standoff, 12.9V clamping), equivalent peak pulse current (122A vs. 116.3A), matching 1500W power dissipation, and identical DO-214AB package. The part is in active production status with ROHS3 compliance and MSL 1 rating. Inventory availability is substantial (9300 pcs).
Secondary Recommendation: SMCJ7.5A-HR (Littelfuse)
The SMCJ7.5A-HR serves as an upgrade substitute with extended lower operating temperature limit (-65°C vs. -55°C), matching all other electrical parameters and package specifications. This part is suitable for applications requiring enhanced low-temperature performance. Active product status and ROHS3 compliance are confirmed.
Alternative Recommendation: TV15C7V5J-HF (Comchip Technology)
The TV15C7V5J-HF provides equivalent electrical performance with peak pulse current of 116.28A (matching the original specification more closely than SMCJ7.5A). All voltage parameters, power dissipation, package type, and temperature range align with the CD214C-T7.5ALF. Active status and full compliance certifications are confirmed.
Higher Power Option: SMDJ7.5A (Alpha & Omega Semiconductor Inc.)
The SMDJ7.5A maintains identical voltage specifications but provides enhanced current handling (232.6A) and doubled power dissipation (3000W). This part is suitable for applications requiring higher transient energy absorption while maintaining the same voltage protection window. Use only if circuit design permits the increased power rating.
Not Recommended: SMCJ8.5A-13-F (Diodes Incorporated)
This part features different voltage specifications (8.5V reverse standoff, 14.4V clamping) and reduced peak pulse current (104.2A). Substitution is not appropriate for circuits designed for 7.5V protection levels.
Frequently Asked Questions (FAQ)
Q: Can I use SMCJ7.5A as a direct replacement for CD214C-T7.5ALF?
A: Yes. The SMCJ7.5A is a direct substitute with matching voltage specifications (7.5V standoff, 12.9V clamping), equivalent peak pulse current (122A vs. 116.3A), identical power rating (1500W), and the same DO-214AB package. The part is in active production with confirmed ROHS3 compliance.
Q: What is the difference between SMCJ7.5A and SMCJ7.5A-HR?
A: Both parts share identical electrical specifications and packaging. The SMCJ7.5A-HR extends the lower operating temperature limit to -65°C (compared to -55°C for SMCJ7.5A), making it suitable for applications requiring enhanced cold-temperature performance. The -HR designation indicates a high-reliability series.
Q: Why is SMCJ8.5A-13-F not recommended as a substitute?
A: The SMCJ8.5A-13-F has different voltage specifications (8.5V reverse standoff vs. 7.5V, and 14.4V clamping vs. 12.9V). Using this part would alter the circuit's overvoltage protection threshold and is not appropriate for designs specified for 7.5V protection.
Q: Can I use SMDJ7.5A instead of CD214C-T7.5ALF?
A: The SMDJ7.5A maintains identical voltage specifications and package but provides higher peak pulse current (232.6A) and doubled power dissipation (3000W). Substitution is permissible only if the circuit design can accommodate the increased power rating without thermal or performance issues.
Q: Are all substitute parts ROHS3 compliant?
A: ROHS3 compliance is confirmed for SMCJ7.5A, SMCJ7.5A-HR, SMCJ8.5A-13-F, SMDJ7.5A, and TV15C7V5J-HF. SMCJ7V5A does not specify RoHS status in available documentation.
Q: What is the MSL rating for substitute parts?
A: SMCJ7.5A, SMCJ7.5A-HR, TV15C7V5J-HF, and SMDJ7.5A all carry MSL 1 (Unlimited) ratings, indicating no moisture sensitivity restrictions during storage or handling.
Q: Can I mix different substitute parts in the same design?
A: Yes, provided all selected parts meet the circuit's voltage protection requirements (7.5V reverse standoff, 12.9V clamping). However, maintaining consistency with a single part number throughout a production run is recommended for supply chain stability and quality control.
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