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CD214A-R150 Equivalent & Substitute Parts
Part Overview
The CD214A-R150 is a general-purpose rectifier diode manufactured by Bourns Inc., rated for 50 V DC reverse voltage and 1 A average rectified current in a DO-214AC (SMA) surface mount package. This part is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and ongoing production requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with modified parameters suitable for specific application requirements.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 50 | V |
| Current - Average Rectified (Io) | 1 | A |
| Voltage - Forward (Vf) (Max) @ If | 1 | V @ 1 A |
| Speed | Standard Recovery >500ns, > 200mA (Io) | — |
| Current - Reverse Leakage @ Vr | 5 | µA @ 50 V |
| Mounting Type | Surface Mount | — |
| Package / Case | DO-214AC, SMA | — |
| Operating Temperature - Junction | -65 to 175 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the CD214A-R150 is determined by the following critical parameters:
Voltage Rating (Vr): The reverse voltage rating must equal or exceed 50 V. Parts with higher voltage ratings (such as 200 V) are acceptable for voltage-constrained applications but represent over-specification.
Current Rating (Io): The average rectified current must equal or exceed 1 A. Parts rated for 1 A or higher are functionally compatible.
Package Type: Surface mount packages must be compatible with existing PCB layouts. DO-214AC (SMA) and DO-214BA (GF1) packages are mechanically distinct and require layout verification.
Forward Voltage (Vf): Forward voltage specifications ranging from 920 mV to 1.1 V at 1 A are acceptable within standard rectifier diode tolerances.
Recovery Speed: Both standard recovery (>500 ns) and fast recovery (≤500 ns) technologies are acceptable; fast recovery represents an enhancement.
Temperature Range: Operating temperature ranges of -55°C to 150°C or -65°C to 175°C are acceptable; wider ranges provide additional margin.
Compliance Status: RoHS3 compliance and MSL 1 rating are required for new designs and production environments.
Parameter Comparison
| Part Number | Manufacturer | Vr (Max) [V] | Io [A] | Vf (Max) @ 1A [V] | Speed | Package | Temp Range [°C] | Product Status | RoHS3 |
|---|---|---|---|---|---|---|---|---|---|
| CD214A-R150 | Bourns Inc. | 50 | 1 | 1.0 | Standard >500ns | DO-214AC (SMA) | -65 to 175 | Obsolete | Yes |
| CGRA4001-G | Comchip Technology | 50 | 1 | 1.1 | Standard >500ns | DO-214AC (SMA) | -55 to 150 | Active | Yes |
| EGF1A | Fairchild Semiconductor | 50 | 1 | 1.0 | Fast ≤500ns | DO-214AC (SMA) | -65 to 175 | Active | — |
| ES1A | YAGEO | 50 | — | 0.95 | — | DO-214AC (SMA) | — | Active | Yes |
| ES1A-13-F | Diodes Incorporated | 50 | 1 | 0.92 | Fast ≤500ns | DO-214AC (SMA) | -55 to 150 | Active | Yes |
| ES1A-E3/5AT | Vishay General Semiconductor | 50 | 1 | 0.92 | Fast ≤500ns | DO-214AC (SMA) | -55 to 155 | Active | Yes |
| ES1A-E3/61T | Vishay General Semiconductor | 50 | 1 | 0.92 | Fast ≤500ns | DO-214AC (SMA) | -55 to 150 | Active | Yes |
| ES1A-LTP | Micro Commercial Co | 50 | 1 | 0.95 | Fast ≤500ns | DO-214AC (SMA) | -65 to 175 | Not For New Designs | Yes |
| ES1A-M3/5AT | Vishay General Semiconductor | 50 | 1 | 0.92 | Fast ≤500ns | DO-214AC (SMA) | -55 to 150 | Active | Yes |
| GF1A-E3/67A | Vishay General Semiconductor | 50 | 1 | 1.1 | Standard >500ns | DO-214BA (GF1) | -65 to 175 | Active | Yes |
| CD214A-S1D | Bourns Inc. | 200 | 1 | 1.0 | Standard >500ns | 2-SMD, No Lead | -65 to 175 | Active | Yes |
Engineering Selection Recommendations
Direct Equivalents (Identical Electrical and Mechanical Specifications):
Parts maintaining 50 V reverse voltage, 1 A current rating, DO-214AC (SMA) package, and RoHS3 compliance are direct equivalents. CGRA4001-G (Comchip Technology) and ES1A-E3/61T (Vishay General Semiconductor) satisfy these criteria with active product status. CGRA4001-G provides standard recovery characteristics matching the original specification, while ES1A-E3/61T offers fast recovery performance with lower forward voltage (0.92 V vs. 1.0 V).
Enhanced Performance Substitutes (Fast Recovery Technology):
EGF1A (Fairchild Semiconductor), ES1A-13-F (Diodes Incorporated), ES1A-E3/5AT (Vishay General Semiconductor), and ES1A-M3/5AT (Vishay General Semiconductor) provide fast recovery operation (≤500 ns) with forward voltage specifications of 0.92 V to 1.0 V. These parts maintain identical voltage and current ratings with active product status and RoHS3 compliance. Operating temperature ranges of -55°C to 150°C represent a narrower specification than the original -65°C to 175°C range.
Alternative Package Consideration:
GF1A-E3/67A (Vishay General Semiconductor) maintains electrical specifications (50 V, 1 A, 1.1 V forward voltage) but uses DO-214BA (GF1) package instead of DO-214AC (SMA). This part is suitable only for applications where PCB layout accommodates the alternative package footprint.
Over-Specification Substitute:
CD214A-S1D (Bourns Inc.) provides 200 V reverse voltage rating with 1 A current capacity in a 2-SMD package. This part is suitable for applications requiring higher voltage margin but requires PCB layout compatibility with the 2-SMD package configuration.
Not Recommended for New Designs:
ES1A-LTP (Micro Commercial Co) carries "Not For New Designs" status and should not be selected for new product development, despite meeting electrical and compliance requirements.
Frequently Asked Questions (FAQ)
Q: Can I substitute the CD214A-R150 with a part rated for higher reverse voltage?
A: Yes. CD214A-S1D (200 V rating) is electrically compatible for applications where the circuit voltage does not exceed 50 V. Higher voltage ratings provide additional safety margin but do not affect circuit operation at lower voltages. Package compatibility with 2-SMD configuration must be verified against PCB layout.
Q: What is the difference between standard recovery and fast recovery diodes?
A: Standard recovery diodes (>500 ns) exhibit longer reverse recovery time, resulting in higher switching losses in high-frequency applications. Fast recovery diodes (≤500 ns) reduce switching losses and are suitable for higher-frequency rectification. Both types are functionally compatible in low-frequency applications. The CD214A-R150 specifies standard recovery; fast recovery substitutes (EGF1A, ES1A-13-F, ES1A-E3/5AT, ES1A-E3/61T, ES1A-M3/5AT) provide enhanced performance.
Q: Are there differences in forward voltage between substitute parts?
A: Forward voltage specifications range from 0.92 V to 1.1 V at 1 A across available substitutes. The original CD214A-R150 specifies 1.0 V maximum. Lower forward voltage (0.92 V) reduces power dissipation; higher forward voltage (1.1 V) increases dissipation. Selection depends on circuit power budget and thermal design requirements.
Q: What does "Not For New Designs" status mean?
A: Parts marked "Not For New Designs" (such as ES1A-LTP) are available for existing production support but should not be selected for new product development. These parts may have limited long-term availability or represent older technology generations. Active status parts are preferred for new designs.
Q: Can I use a DO-214BA (GF1) package part in place of DO-214AC (SMA)?
A: No, without PCB layout modification. DO-214BA and DO-214AC packages have different physical footprints and pin configurations. GF1A-E3/67A (DO-214BA package) requires a different PCB pad layout than the original DO-214AC design. Footprint compatibility must be verified before substitution.
Q: What is the significance of RoHS3 compliance and MSL 1 rating?
A: RoHS3 compliance indicates the part meets European Union restrictions on hazardous substances. MSL 1 (Unlimited) indicates the part has no moisture sensitivity limitations and does not require special handling or storage conditions. Both certifications are standard for modern surface mount rectifier diodes and are required for most production environments.
Q: Are all substitute parts available in the same packaging format?
A: No. Most substitutes are available in Cut Tape (CT) & Digi-Reel® or Tape & Reel (TR) formats. The original CD214A-R150 packaging format is not specified in the provided data. Packaging format selection depends on production volume and assembly equipment compatibility.
Q: Which substitute part most closely matches the original CD214A-R150 specification?
A: CGRA4001-G (Comchip Technology) provides the closest match, maintaining 50 V reverse voltage, 1 A current rating, 1.1 V forward voltage, standard recovery speed, DO-214AC (SMA) package, and -55°C to 150°C operating temperature range. This part is active and RoHS3 compliant. ES1A-E3/61T (Vishay General Semiconductor) offers identical electrical ratings with fast recovery performance and lower forward voltage (0.92 V).
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