SMAJ5936B-TP Equivalent & Substitute Parts

Part Overview

The SMAJ5936B-TP is a surface mount Zener diode manufactured by Micro Commercial Co, rated at 30 V nominal Zener voltage with 1.5 W maximum power dissipation. The device is packaged in DO-214AC (SMA) format and is compliant with RoHS3 and REACH regulations. This part is currently in active production status with 35,400 units in stock. Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific application requirements such as operating temperature range, packaging format, or automotive qualification needs.

Substiute Parts

SMAJ5936B-TP

Micro Commercial CoIn Stock: 35509SMAJ5936B-TP Datasheet

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1SMA5936BT3G

onsemiIn Stock: 1351241SMA5936BT3G Datasheet

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CMZ5936B TR13 PBFREE

Central Semiconductor CorpIn Stock: 4485CMZ5936B TR13 PBFREE Datasheet

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SMAZ30-13-F

Diodes IncorporatedIn Stock: 30416SMAZ30-13-F Datasheet

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SZ1SMA5936BT3G

onsemiIn Stock: 5332SZ1SMA5936BT3G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMAJ5936B-TP is determined by the following critical parameters:

Primary Substitution Criteria:

• Voltage - Zener (Nom): 30 V
• Tolerance: ±5%
• Power - Max: 1.5 W (or higher)
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Secondary Considerations:

• Operating Temperature Range: Extended range (-65°C to 150°C) provides broader application compatibility
• Impedance (Max): Values within 15–28 Ohms are functionally equivalent
• Current - Reverse Leakage: Values up to 1 µA @ 22.8 V remain within acceptable limits
• Voltage - Forward (Vf): Values up to 1.5 V @ 200 mA are compatible
• Packaging Format: Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® are both surface mount delivery methods

Substitute parts meeting all primary criteria are electrically and mechanically compatible with the SMAJ5936B-TP. Parts with extended operating temperature ranges or automotive qualification provide additional design margin for demanding applications.

Parameter Comparison

Engineering Selection Recommendations

Full Electrical and Mechanical Equivalents:

The 1SMA5936BT3G (onsemi) and SZ1SMA5936BT3G (onsemi) are direct electrical equivalents to the SMAJ5936B-TP. Both devices match the 30 V nominal Zener voltage, ±5% tolerance, 1.5 W power rating, and DO-214AC SMA package. The 1SMA5936BT3G is available in Cut Tape & Digi-Reel® packaging, while the SZ1SMA5936BT3G is supplied in Tape & Reel format and carries AEC-Q101 automotive qualification. Both onsemi parts provide extended operating temperature range (-65°C to 150°C) compared to the SMAJ5936B-TP specification. Selection between these two onsemi alternatives depends on packaging delivery method and automotive application requirements.

Functional Equivalent with Reduced Power Rating:

The CMZ5936B TR13 PBFREE (Central Semiconductor Corp) is electrically compatible with the SMAJ5936B-TP for applications where power dissipation does not exceed 500 mW. This part maintains the 30 V nominal Zener voltage, ±5% tolerance, and DO-214AC SMA package. The CMZ5936B exhibits slightly higher reverse leakage current (1 µA @ 22.8 V) and provides extended operating temperature range (-65°C to 150°C). This substitute is suitable for lower-power circuit designs where the full 1.5 W capability of the SMAJ5936B-TP is not required.

Functional Equivalent with Reduced Power Rating and Improved Impedance:

The SMAZ30-13-F (Diodes Incorporated) is electrically compatible with the SMAJ5936B-TP for applications where power dissipation does not exceed 1 W. This part maintains the 30 V nominal Zener voltage, ±5% tolerance, and DO-214AC SMA package. The SMAZ30-13-F features lower impedance (15 Ohms maximum) and lower forward voltage (1.2 V @ 200 mA), providing improved performance characteristics in certain circuit topologies. Extended operating temperature range (-65°C to 150°C) is provided. This substitute is suitable for moderate-power applications where the improved impedance and forward voltage characteristics are beneficial.

Compliance and Regulatory Status:

All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All devices carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements. The SZ1SMA5936BT3G carries additional AEC-Q101 automotive qualification, making it the preferred choice for automotive and high-reliability applications.

Frequently Asked Questions (FAQ)

Q: Can the 1SMA5936BT3G replace the SMAJ5936B-TP in all applications?

A: The 1SMA5936BT3G is a direct electrical and mechanical equivalent. Both devices share identical Zener voltage (30 V), tolerance (±5%), power rating (1.5 W), and package format (DO-214AC SMA). The 1SMA5936BT3G provides extended operating temperature range (-65°C to 150°C) and is available in Cut Tape & Digi-Reel® packaging. Substitution is valid for all applications where the SMAJ5936B-TP is specified.

Q: What is the difference between the 1SMA5936BT3G and SZ1SMA5936BT3G?

A: Both are onsemi 30 V, 1.5 W Zener diodes in DO-214AC SMA package with identical electrical specifications. The primary difference is packaging: 1SMA5936BT3G is supplied in Cut Tape & Digi-Reel® format, while SZ1SMA5936BT3G is supplied in Tape & Reel format. Additionally, the SZ1SMA5936BT3G carries AEC-Q101 automotive qualification, making it suitable for automotive applications requiring this certification.

Q: Can I use the CMZ5936B TR13 PBFREE as a substitute if my circuit requires 1.5 W power dissipation?

A: The CMZ5936B TR13 PBFREE is rated for 500 mW maximum power dissipation, which is below the 1.5 W requirement of the SMAJ5936B-TP. This substitute is suitable only for applications where power dissipation does not exceed 500 mW. For circuits requiring the full 1.5 W capability, use the 1SMA5936BT3G or SZ1SMA5936BT3G.

Q: What are the advantages of the SMAZ30-13-F over the SMAJ5936B-TP?

A: The SMAZ30-13-F offers lower impedance (15 Ohms maximum versus 28 Ohms) and lower forward voltage (1.2 V @ 200 mA versus 1.5 V @ 200 mA). These characteristics may provide improved performance in certain circuit designs. However, the SMAZ30-13-F is rated for 1 W maximum power dissipation, which is lower than the SMAJ5936B-TP 1.5 W rating. Selection depends on circuit power requirements and whether the improved impedance and forward voltage characteristics are beneficial.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed—1SMA5936BT3G, CMZ5936B TR13 PBFREE, SMAZ30-13-F, and SZ1SMA5936BT3G—are ROHS3 compliant and REACH unaffected. All devices carry Moisture Sensitivity Level 1 (Unlimited).

Q: Which substitute should I use for automotive applications?

A: The SZ1SMA5936BT3G is the recommended substitute for automotive applications. This device carries AEC-Q101 automotive qualification and provides identical electrical specifications to the SMAJ5936B-TP (30 V, 1.5 W, ±5% tolerance) in DO-214AC SMA package. The SZ1SMA5936BT3G is supplied in Tape & Reel packaging.

Q: What is the difference in operating temperature range between the SMAJ5936B-TP and its substitutes?

A: The SMAJ5936B-TP is specified to operate up to 150°C maximum. All substitute parts—1SMA5936BT3G, CMZ5936B TR13 PBFREE, SMAZ30-13-F, and SZ1SMA5936BT3G—provide extended operating temperature range of -65°C to 150°C, offering broader low-temperature capability.

Q: Can I interchange Tape & Reel and Cut Tape & Digi-Reel® packaging formats?

A: Both Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® are surface mount delivery methods suitable for automated assembly. The choice between formats depends on manufacturing equipment and assembly process requirements. Electrically and mechanically, devices in these packaging formats are identical.

Q: What does the ±5% tolerance specification mean?

A: The ±5% tolerance on Zener voltage indicates that the actual Zener voltage of any individual device will fall within the range of 28.5 V to 31.5 V (30 V ± 5%). All listed substitute parts carry the same ±5% tolerance specification.