Request Quote
(Ships tomorrow)
CD214B-T6.5ALF Equivalent & Substitute Parts
Part Overview
The CD214B-T6.5ALF is a transient voltage suppressor (TVS) diode manufactured by Bourns Inc., designed for general-purpose overvoltage protection in surface mount applications. This unidirectional Zener diode features a 6.5V reverse standoff voltage and 11.2V maximum clamping voltage, with a peak pulse current rating of 53.6A in the DO-214AA (SMB) package. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and component procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CD214B-T6.5ALF |
| Manufacturer | Bourns Inc. |
| Product Category | Transient Voltage Suppressors (TVS) |
| Product Status | Obsolete |
| Type | Zener, Unidirectional |
| Package / Case | DO-214AA, SMB |
| Voltage - Reverse Standoff (Typ) | 6.5V |
| Voltage - Breakdown (Min) | 7.22V |
| Voltage - Clamping (Max) @ Ipp | 11.2V |
| Current - Peak Pulse (10/1000µs) | 53.6A |
| Power - Peak Pulse | 600W |
| Operating Temperature Range | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the CD214B-T6.5ALF is determined by strict electrical and mechanical compatibility across the following parameters:
Critical Matching Parameters:
- Voltage - Reverse Standoff (Typ): 6.5V
- Voltage - Clamping (Max) @ Ipp: 11.2V
- Current - Peak Pulse (10/1000µs): 53.6A minimum
- Package / Case: DO-214AA (SMB)
- Mounting Type: Surface Mount
- Unidirectional Zener configuration
Substitute parts are grouped into two categories:
Direct Equivalents: Parts with identical electrical specifications (6.5V standoff, 11.2V clamp, 53.6A+ peak pulse) in the same DO-214AA package. These provide pin-for-pin and functional replacement without circuit modification.
Similar Alternatives: Parts with comparable but slightly different electrical parameters (voltage standoff within ±0.7V, clamping voltage within ±0.9V, peak pulse current within ±4.4A) in the same DO-214AA package. These may be used where the application tolerance permits minor parameter variation.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Operating Temperature | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|
| CD214B-T6.5ALF | Bourns Inc. | 6.5V | 11.2V | 53.6A | 600W | -55°C ~ 150°C | Obsolete | ROHS3 Compliant |
| SMBJ6.5A | Taiwan Semiconductor Corporation | 6.5V | 11.2V | 56A | 600W | -55°C ~ 150°C | Active | ROHS3 Compliant |
| SMBJ6.5A-TR | STMicroelectronics | 6.5V | 11.2V | 56A | 600W | -55°C ~ 150°C | Active | ROHS3 Compliant |
| SMBJ6V5A | Taiwan Semiconductor Corporation | 6.5V | 11.2V | 53.6A | 600W | -55°C ~ 150°C | Active | ROHS3 Compliant |
| TV06B6V5J-G | Comchip Technology | 6.5V | 11.2V | 54.67A | 600W | Not specified | Active | ROHS3 Compliant |
| SM6T6V8A-M3/5B | Vishay General Semiconductor - Diodes Division | 5.8V | 10.5V | 57A | 600W | -65°C ~ 150°C | Active | ROHS3 Compliant |
| SMBJ6.0A-HRA | Littelfuse Inc. | 6V | 10.3V | 58.3A | 600W | -65°C ~ 150°C | Active | ROHS3 Compliant |
| TPSMB6.8A/1 | Vishay General Semiconductor - Diodes Division | 5.8V | 10.5V | 57.1A | 600W | -65°C ~ 185°C | Active | RoHS non-compliant |
| SMBJ7.0A | MDD | 7V | 12V | 50A | 600W | -50°C ~ 150°C | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Substitutes (Direct Equivalents):
SMBJ6.5A (Taiwan Semiconductor Corporation) and SMBJ6.5A-TR (STMicroelectronics) are the preferred direct substitutes. Both maintain identical voltage specifications (6.5V standoff, 11.2V clamp) and equivalent peak pulse current (56A), with active product status and ROHS3 compliance. These parts provide direct functional replacement in the DO-214AA package.
SMBJ6V5A (Taiwan Semiconductor Corporation) offers identical electrical performance to the original part, including the exact 53.6A peak pulse current specification, with active status and ROHS3 compliance.
TV06B6V5J-G (Comchip Technology) matches the original specifications precisely (6.5V standoff, 11.2V clamp, 54.67A peak pulse) with active status and ROHS3 compliance. Operating temperature range is not specified in available documentation.
Secondary Alternatives (Similar Parameters):
SM6T6V8A-M3/5B (Vishay General Semiconductor - Diodes Division) and TPSMB6.8A/1 (Vishay General Semiconductor - Diodes Division) feature lower standoff voltage (5.8V) and clamping voltage (10.5V) with higher peak pulse current (57A and 57.1A respectively). These are suitable only where circuit design permits lower voltage thresholds. TPSMB6.8A/1 is RoHS non-compliant and operates to 185°C.
SMBJ6.0A-HRA (Littelfuse Inc.) provides 6V standoff and 10.3V clamping with 58.3A peak pulse current. Extended operating temperature range (-65°C to 150°C) may be beneficial in certain applications.
SMBJ7.0A (MDD) features higher standoff voltage (7V) and clamping voltage (12V) with 50A peak pulse current. This part is suitable only where higher voltage thresholds are acceptable.
Frequently Asked Questions (FAQ)
Q: Can SMBJ6.5A directly replace CD214B-T6.5ALF without circuit modification?
A: Yes. SMBJ6.5A maintains identical voltage specifications (6.5V standoff, 11.2V clamp) and equivalent peak pulse current (56A vs. 53.6A), with the same DO-214AA package and surface mount configuration. No circuit modification is required.
Q: What is the difference between SMBJ6.5A and SMBJ6V5A?
A: Both parts share identical voltage ratings (6.5V standoff, 11.2V clamp). SMBJ6.5A provides 56A peak pulse current, while SMBJ6V5A provides 53.6A, matching the original CD214B-T6.5ALF specification exactly. Both are active products with ROHS3 compliance.
Q: Can SM6T6V8A-M3/5B or TPSMB6.8A/1 be used as substitutes?
A: These parts have lower voltage specifications (5.8V standoff, 10.5V clamp vs. 6.5V and 11.2V). They are suitable only if circuit design tolerates lower voltage thresholds. TPSMB6.8A/1 is additionally RoHS non-compliant.
Q: Why is SMBJ7.0A listed as a similar alternative?
A: SMBJ7.0A maintains the same DO-214AA package and 600W power rating but features higher voltage specifications (7V standoff, 12V clamp) and lower peak pulse current (50A). It is suitable only where higher voltage protection thresholds are acceptable and peak pulse current requirements are lower.
Q: Are all substitute parts ROHS3 compliant?
A: Most substitutes are ROHS3 compliant. TPSMB6.8A/1 is RoHS non-compliant and should be avoided in applications requiring RoHS compliance. TV06B6V5J-G compliance status is confirmed as ROHS3 compliant.
Q: What is the significance of operating temperature range differences?
A: The original CD214B-T6.5ALF operates from -55°C to 150°C. Most substitutes maintain this range. SM6T6V8A-M3/5B, SMBJ6.0A-HRA, and TPSMB6.8A/1 extend the lower limit to -65°C. TPSMB6.8A/1 extends the upper limit to 185°C. Select based on application temperature requirements.
Q: Can these parts be used interchangeably in existing PCB designs?
A: Yes, all substitute parts use the same DO-214AA (SMB) package with identical pin configuration and footprint. No PCB layout modification is required. Electrical parameter differences must be evaluated against circuit design tolerances.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts