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Microchip Technology SMBG5358A/TR13
- Part No.:
- SMBG5358A/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5358A/TR13.pdf
- Description:
- DIODE ZENER 22V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,130
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Product details
Overview
SMBG5358A/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 22 V, ±10% tolerance (A suffix), 3.5 Ω dynamic impedance at 50 mA test current, and maximum regulator current of 75 mA. It operates in the breakdown region for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5358A/TR13 datasheet, SMBG5358A/TR13 pinout, SMBG5358A/TR13 application, or SMBG5358A/TR13 equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (RθJL = 25 °C/W), surge current rating (4.7 A), junction temperature range (–65 to +150 °C), and DO-215AA gull-wing package compatibility with automated SMT assembly.
Technical Context
This device functions as a two-terminal voltage reference operating in reverse-biased breakdown mode. Its regulation performance is defined by VZ = 22 V at IZT = 50 mA, with ZZT = 3.5 Ω and IZK = 0.5 mA near the knee, enabling stable clamping across wide current ranges.
Thermal design relies on low RθJL = 25 °C/W to sustain 5.0 W dissipation at lead temperature <25 °C, while RθJA = 90 °C/W applies under FR4 board conditions. The cathode band polarity and moisture sensitivity level 1 classification support reliable reflow soldering without dry-pack requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±10% at 50 mA - defines regulated output voltage with worst-case tolerance band of 19.8–24.2 V. |
| Power Dissipation (PD) | 5.0 W @ TL < 25 °C - requires thermal management via PCB copper pour or heatsinking to maintain reliability. |
| Dynamic Impedance (ZZT) | 3.5 Ω at IZT = 50 mA - ensures minimal voltage variation under load transients in feedback networks. |
| Max Regulator Current (IZM) | 75 mA - sets upper limit for continuous Zener bias current before thermal runaway risk. |
| Surge Current (IZSM) | 4.7 A (8.3 ms half-sine) - supports transient overvoltage suppression in industrial power rails. |
| Junction Temperature Range | –65 to +150 °C - enables operation in automotive under-hood and industrial control environments. |
| Reverse Leakage (IR) | 0.5 µA @ 15.8 V - guarantees low quiescent current in high-impedance sensing paths. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; terminals are anode (unbanded end) and cathode (banded end). Designed for visible solder joint inspection and compatible with standard SMT reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; reference node in reverse-biased regulation | Connected to lower-potential rail (e.g., ground or return path) during Zener operation. |
| Cathode | Current exit terminal in forward bias; regulated output node in reverse bias | Banded end connects to voltage node requiring clamping or reference; polarity must be observed. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N53xxB equivalent | Direct functional replacement for legacy through-hole 1N5358B with identical electrical specs and test methods. |
| Moisture Sensitivity Level 1 | No dry pack required prior to reflow; simplifies handling and reduces manufacturing cost. |
| Gull-wing lead form | Enables visual solder joint inspection and robust mechanical attachment on FR4 PCBs. |
| RoHS-compliant option | e3 suffix available; matte-tin plating meets lead-free assembly requirements without sacrificing solderability. |
| High surge current capability | 4.7 A non-repetitive peak withstand supports IEC 61000-4-5 surge immunity designs. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Overvoltage Clamp |
|---|---|
Use Scenario: Regulates error amplifier reference in isolated flyback converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Zener diode provides stable 22 V reference to TL431 cathode or optocoupler LED drive circuit. Use Value: ±10% VZ tolerance and 3.5 Ω ZZT ensure tight output voltage regulation (<±1.5%) across line/load/temperature. |
Use Scenario: Clamps 24 V DC industrial bus against lightning-induced surges and switching transients. IC Role / Device Role / Timing Role: Two-terminal shunt protector placed between bus and ground to divert excess energy. Use Value: 4.7 A IZSM rating and 5 W PD enable single-device protection without external series impedance. |
| Programmable Voltage Reference | Automotive ECU Sensor Bias |
Use Scenario: Sets precise bias point for analog front-end op-amp input stage in data acquisition systems. IC Role / Device Role / Timing Role: Provides low-drift, low-noise 22 V reference for ADC driver amplifiers. Use Value: 0.5 µA IR at 15.8 V minimizes loading error in high-impedance divider networks. |
Use Scenario: Supplies regulated bias to pressure or temperature sensor bridges in engine control units. IC Role / Device Role / Timing Role: Zener stabilizes excitation voltage despite battery fluctuations from 9–16 V. Use Value: –65 to +150 °C TJ range ensures stable 22 V reference across full automotive ambient envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358B | Through-hole DO-41 package; identical VZ, IZT, ZZT, and PD; no gull-wing leads. | Requires axial-leaded PCB footprint and wave soldering; unsuitable for high-density SMT layouts. | Select when legacy through-hole assembly or manual prototyping is used; not drop-in for SMBG5358A/TR13. |
| SMBG5358B | Same DO-215AA package and 22 V rating but ±5% tolerance (B suffix); ZZT = 3.5 Ω unchanged. | Higher precision regulation needed where 22 V ±1.1 V (vs. ±2.2 V) is required for tighter feedback control. | Choose for improved voltage accuracy at same thermal and surge performance; requires BOM revision. |
Compared with SMBG5358A/TR13, 1N5358B offers identical electrical behavior but incompatible packaging, while SMBG5358B delivers tighter voltage tolerance in the same SMT footprint-enabling accuracy upgrades without layout changes.
Availability
SMBG5358A/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial overvoltage clamps, and programmable voltage references requiring stable component supply, RoHS compliance, and gull-wing SMT compatibility.
Supply support for SMBG5358A/TR13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi Corporation (now part of Microchip Technology) is a semiconductor company specializing in high-reliability analog, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
SMBG5358A/TR13 belongs to Microsemi's SMBG-series 5 W Zener diodes, designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, high-reliability power systems.
FAQ
What is the Zener voltage tolerance for SMBG5358A/TR13?
The "A" suffix in SMBG5358A/TR13 specifies a ±10% Zener voltage tolerance, meaning its rated 22 V breakdown voltage falls within 19.8 V to 24.2 V at 50 mA test current. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 to +150 °C. SMBG5358A/TR13 maintains this specification under both steady-state and transient conditions when properly heatsinked.
Does SMBG5358A/TR13 require dry packing before reflow soldering?
No, SMBG5358A/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions without dry packing. This eliminates baking steps prior to reflow, reducing process complexity and cost. The device's void-free epoxy body and annealed matte-tin plating further ensure robust solder joint formation during standard Pb-free reflow profiles.
How does the thermal resistance of SMBG5358A/TR13 affect its power handling?
SMBG5358A/TR13 has RθJL = 25 °C/W (junction-to-lead) and RθJA = 90 °C/W (junction-to-ambient on FR4). At TL < 25 °C, it sustains full 5.0 W dissipation; above that, power must be derated linearly. For example, at TL = 50 °C, max power drops to ~3.5 W. Proper PCB copper area under the leads is essential to realize the 25 °C/W rating and avoid thermal runaway.
Can SMBG5358A/TR13 replace 1N5358B in existing designs?
SMBG5358A/TR13 is electrically equivalent to 1N5358B per JEDEC standards but uses a DO-215AA gull-wing package instead of DO-41 axial leads. It cannot be used as a direct physical replacement without PCB redesign. However, its identical VZ, ZZT, IZM, and surge ratings make it a functional upgrade path for new SMT-based designs seeking higher density and automated assembly compatibility.
What is the maximum surge current rating for SMBG5358A/TR13?
SMBG5358A/TR13 is rated for a non-repetitive peak surge current (IZSM) of 4.7 A, specified for an 8.3 ms half-sine waveform. This value is validated per Microsemi's test methodology and supports robust transient suppression in 24 V industrial and automotive power rails. Surge capability remains valid only when the device is operated within its junction temperature limits and mounted per recommended pad layout.
SMBG5358A/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-215AA, SMB Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 22 V
- Tolerance:
- ±10%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 15.8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 1 A
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG5358A/TR13 FAQ
1.How can I place an order for SMBG5358A/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5358A/TR13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMBG5358A/TR13 reliable?
The price and inventory of SMBG5358A/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5358A/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5358A/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5358A/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5358A/TR13?
SMBG5358A/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5358A/TR13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMBG5358A/TR13?
For technical support, including SMBG5358A/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5358A/TR13 requirements.
6.How does Aetrix verify that SMBG5358A/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5358A/TR13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBG5358A/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5358A/TR13?
All SMBG5358A/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5358A/TR13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMBG5358A/TR13 part is unused and in its original packaging.
Return procedure for SMBG5358A/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5358A/TR13 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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SMAJ4744A-TP
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SMAZ12-13-F
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