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Microchip Technology SMBG5358BE3/TR13
- Part No.:
- SMBG5358BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5358BE3/TR13.pdf
- Description:
- DIODE ZENER 22V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,815
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Product details
Overview
SMBG5358BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 22 V, ±5% tolerance (B suffix), 3.5 Ω dynamic impedance at 50 mA test current, and maximum regulator current of 4.7 A under thermal-limited conditions - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5358BE3/TR13 datasheet, SMBG5358BE3/TR13 pinout, SMBG5358BE3/TR13 application, or SMBG5358BE3/TR13 equivalent, key selection criteria include Zener voltage stability across temperature, surge current capability (216 A peak), low dynamic impedance, and RoHS-compliant matte-tin gull-wing terminations in DO-215AA package.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased mode, with cathode band marking polarity and specified Zener voltage measured at 50 mA (IZT) with 40 ms delay per JEDEC standard. Its 25 °C/W junction-to-lead thermal resistance enables stable regulation when mounted on PCBs with adequate copper pour.
The SMBG5358BE3/TR13 exhibits minimal voltage variation versus current due to low ZZT (3.5 Ω) and high IZM (4.7 A), supporting robust performance in transient suppression and feedback sensing where tight voltage control and high surge immunity are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±5% at 50 mA - defines precise clamping threshold for overvoltage protection and reference generation. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - sets maximum continuous DC power handling with proper lead heat sinking. |
| Dynamic Impedance (ZZT) | 3.5 Ω at IZT = 50 mA - ensures minimal output voltage shift under load current changes. |
| Maximum Regulator Current (IZM) | 4.7 A - determines peak steady-state current before thermal runaway under rated power. |
| Surge Current (IZSM) | 216 A (8.3 ms half-sine) - supports single-event transient suppression without failure. |
| Reverse Leakage (IR) | 0.5 µA at 15.8 V - guarantees low standby power loss in high-impedance bias networks. |
| Junction Temperature Range | –65 °C to +150 °C - enables operation in automotive under-hood and industrial control environments. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by molded band; terminals are anode (unbanded end) and cathode (banded end); RoHS-compliant matte-tin plating per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; forms return path for Zener current. |
| Cathode | Regulated output node | Provides stable 22 V reference or clamping point; marked by visible band on body. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5358B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs. |
| Moisture Sensitivity Level 1 | No dry pack required - simplifies SMT assembly and reduces handling cost. |
| Gull-wing lead form | Visible solder joints - supports automated optical inspection (AOI) and rework verification. |
| Non-ESD sensitive | Qualified per MIL-STD-750 method 1020 - eliminates need for ESD handling protocols in production. |
| Thermally optimized lead frame | RθJL = 25 °C/W - allows 5 W dissipation with minimal board copper area vs. standard SMB packages. |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Precision 22 V reference source for TL431-like error amplifier biasing and regulation threshold. Use Value: Low 3.5 Ω dynamic impedance maintains <±0.1 V regulation error across 10–100 mA load range. |
Use Scenario: Protecting 24 V DC input rails against load-dump transients in industrial PLC modules. IC Role / Device Role / Timing Role: Fast-acting shunt clamp that diverts surge energy before downstream ICs exceed absolute maximum ratings. Use Value: 216 A non-repetitive surge rating absorbs 8.3 ms transients without degradation or parametric shift. |
| DC-DC Converter Reference | Automotive Sensor Biasing |
Use Scenario: Providing stable 22 V bias for high-side gate drivers in 48 V automotive DC-DC stages. IC Role / Device Role / Timing Role: Low-noise, temperature-stable voltage reference replacing bulkier three-terminal regulators. Use Value: –65 °C to +150 °C operating range ensures functionality during cold cranking and under-hood thermal cycling. |
Use Scenario: Supplying regulated excitation voltage to piezoresistive pressure sensors in engine manifolds. IC Role / Device Role / Timing Role: Low-leakage (0.5 µA) Zener maintaining sensor bridge accuracy despite wide ambient temperature swings. Use Value: Minimal IR-induced drift preserves sensor offset calibration over lifetime without active compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358BRLG | Same 22 V ±5%, 5 W rating, but in axial DO-204AL (1N) package with leaded termination. | Requires through-hole assembly and larger board area; unsuitable for high-density SMT layouts. | Select when legacy through-hole compatibility or manual prototyping is prioritized over space and AOI capability. |
| SMBJ5358B | Identical electrical specs but J-bend (DO-214AA) leads instead of gull-wing; RθJA = 90 °C/W same, but RθJL not specified. | Less visible solder joints; lower thermal coupling to PCB copper due to J-bend geometry. | Prefer when existing DO-214AA footprint exists and visual inspection is less critical than thermal margin. |
Compared with SMBG5358BE3/TR13, 1N5358BRLG requires PCB redesign for through-hole mounting and lacks AOI support, while SMBJ5358B trades gull-wing inspectability and defined RθJL for footprint compatibility - making SMBG5358BE3/TR13 optimal for new SMT designs demanding traceable thermal performance and process control.
Availability
SMBG5358BE3/TR13 is available at Aetrix Electronics and suitable for switching power supply feedback, overvoltage protection clamp, and DC-DC converter reference applications requiring stable component supply, full RoHS compliance, and verified surge immunity.
Supply support for SMBG5358BE3/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 U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient suppression in space-constrained, thermally demanding power systems - emphasizing JEDEC equivalence, moisture resilience, and visible-process gull-wing packaging.
FAQ
What is the Zener voltage tolerance of SMBG5358BE3/TR13?
The SMBG5358BE3/TR13 has a ±5% Zener voltage tolerance, indicated by the "B" suffix in its part number. This means its nominal 22 V breakdown voltage is guaranteed between 20.9 V and 23.1 V at 50 mA test current and 25 °C. The tolerance is verified per JEDEC test standards and applies across the full operating temperature range of –65 °C to +150 °C.
Does SMBG5358BE3/TR13 require dry packing before SMT reflow?
No, SMBG5358BE3/TR13 does not require dry packing because it is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B. Its void-free epoxy encapsulation and controlled moisture absorption allow direct placement and reflow at 260 °C for 10 seconds without preconditioning - reducing manufacturing overhead and eliminating bake-out steps.
What is the maximum surge current rating for SMBG5358BE3/TR13?
The SMBG5358BE3/TR13 is rated for a non-repetitive peak surge current (IZSM) of 216 A, defined as a single 8.3 ms half-sine waveform. This rating is validated under standardized test conditions and reflects its capability to absorb transient energy without parametric shift or catastrophic failure - critical for automotive load-dump and industrial surge protection.
How does the gull-wing package of SMBG5358BE3/TR13 benefit automated assembly?
The gull-wing leads of SMBG5358BE3/TR13 provide fully visible solder joints after reflow, enabling reliable automated optical inspection (AOI) and X-ray verification. Unlike J-bend or leadless packages, this geometry allows real-time defect detection of bridging, insufficient wetting, or misalignment - improving first-pass yield and reducing field failure risk in high-volume production.
Is SMBG5358BE3/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5358BE3/TR13 features RoHS-compliant annealed matte-tin plating and is qualified for lead-free reflow up to 260 °C for 10 seconds per MIL-STD-750 method 2026. Its thermal resistance values (RθJL = 25 °C/W, RθJA = 90 °C/W) remain valid under these conditions when mounted on FR4 with the recommended 8.13 mm × 2.16 mm pad layout.
SMBG5358BE3/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:
- ±5%
- 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)
SMBG5358BE3/TR13 FAQ
1.How can I place an order for SMBG5358BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5358BE3/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 SMBG5358BE3/TR13 reliable?
The price and inventory of SMBG5358BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5358BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5358BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5358BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5358BE3/TR13?
SMBG5358BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5358BE3/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 SMBG5358BE3/TR13?
For technical support, including SMBG5358BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5358BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5358BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5358BE3/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 SMBG5358BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5358BE3/TR13?
All SMBG5358BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5358BE3/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 SMBG5358BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5358BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5358BE3/TR13 Tags
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