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Microchip Technology SMBG5358B/TR13
- Part No.:
- SMBG5358B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5358B/TR13.pdf
- Description:
- DIODE ZENER 22V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,053
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Product details
Overview
SMBG5358B/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 75 mA - used for precision voltage regulation in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5358B/TR13 datasheet, SMBG5358B/TR13 pinout, SMBG5358B/TR13 application, or SMBG5358B/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (4.7 A), thermal resistance (90 °C/W on FR4), and DO-215AA gull-wing package compatibility with automated SMT assembly.
Technical Context
This device operates in reverse-biased breakdown mode to maintain stable reference voltage across wide current (50 mA IZT to 75 mA IZM) and temperature (–65 °C to +150 °C) ranges. Its low dynamic impedance (3.5 Ω) ensures minimal voltage variation under load transients.
The SMBG5358B/TR13 uses a void-free thermosetting epoxy case (UL94V-0), matte-tin RoHS-compliant plating, and cathode band polarity marking. It meets MIL-STD-750 ESD robustness requirements and has IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V ±5% at 50 mA - defines regulated output voltage in feedback networks and clamp thresholds. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management when operating near max current on PCBs. |
| Dynamic Impedance (ZZT) | 3.5 Ω at IZT = 50 mA - ensures <110 mV voltage shift for ±100 mA load change near regulation point. |
| Max Regulator Current (IZM) | 75 mA - sets upper limit for continuous DC bias without exceeding 5 W derated power. |
| Surge Current (IZSM) | 4.7 A (8.3 ms half-sine) - enables transient overvoltage clamping in surge-prone inputs. |
| Reverse Leakage (IR) | 0.5 µA at 15.8 V - guarantees negligible standby current in high-impedance bias networks. |
| Thermal Resistance (RθJA) | 90 °C/W on FR4 (1 oz Cu) - dictates minimum copper area needed to sustain full power at ambient ≤70 °C. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; leads are tin-plated (RoHS-compliant matte-tin) and solderable per MIL-STD-750 Method 2026. Package dimensions: 4.06–4.57 mm length (B), 3.30–3.94 mm width (C), 1.96–2.10 mm height (A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias operation | Connected to lower-potential side (e.g., ground or return path) in Zener regulator configuration. |
| Cathode (banded end) | Regulated output terminal | Provides stable 22 V reference when biased positively relative to anode; polarity critical for correct clamping. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5358B equivalent | Identical electrical specs and test methods - enables drop-in replacement for legacy through-hole designs using adapter footprints. |
| Gull-wing lead form | Enables visual solder-joint inspection and reliable reflow yield on fine-pitch SMT lines without tombstoning. |
| Level 1 moisture sensitivity | No dry-pack or baking required before assembly - reduces handling cost and avoids moisture-induced popcorning. |
| High surge current rating | 4.7 A non-repetitive peak withstand capability - eliminates need for external TVS in moderate-energy transient suppression. |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizes error amplifier reference in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener reference diode providing precise 22 V threshold for TL431-like feedback network. Use Value: Maintains ±1.1 V regulation window over –40 °C to +125 °C due to low tempco and 3.5 Ω ZZT. | Use Scenario: Clamps analog sensor output to prevent ADC input overload during ESD events. IC Role / Device Role / Timing Role: Overvoltage protector limiting signal rail to 22 V before reaching downstream op-amp or ADC. Use Value: Withstands 4.7 A surge (8.3 ms) without degradation - protects against IEC 61000-4-2 contact discharge. |
| Programmable Logic Controller Input Protection | Automotive Body Control Module Voltage Reference |
Use Scenario: Shields 24 V digital input circuitry from load-dump transients in factory automation systems. IC Role / Device Role / Timing Role: Primary shunt regulator absorbing energy during 12 V/24 V bus overvoltage events. Use Value: Delivers 5 W continuous dissipation with 90 °C/W RθJA - sustains operation without heatsink on standard 2-layer PCB. | Use Scenario: Supplies stable 22 V reference for microcontroller reset supervisor IC in 12 V vehicle battery systems. IC Role / Device Role / Timing Role: Precision voltage reference element in undervoltage/overvoltage detection ladder network. Use Value: ±5% tolerance and <0.5 µA leakage at 15.8 V ensure accurate trip-point setting across automotive temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5358B | Axial-leaded T-18 package; identical VZ, IZM, and ZZT; higher RθJA (~200 °C/W). | Requires through-hole assembly; unsuitable for high-density SMT layouts. | Select when retrofitting legacy boards or where manual repair access is prioritized over board space. |
| SMBJ5358 | DO-214AA J-bend package; same VZ and power rating; slightly higher ZZT (4.0 Ω) and lower IZSM (4.4 A). | Compatible with same footprint family but requires pad layout revision; less surge margin. | Choose if existing design uses SMBJ-series land patterns and 0.3 Ω ZZT advantage is not critical. |
Compared with 1N5358B and SMBJ5358, the SMBG5358B/TR13 offers optimal balance of SMT manufacturability, visual solder inspection capability, and 4.7 A surge rating - making it preferred for new industrial power designs requiring reliability and process control.
Availability
SMBG5358B/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and programmable logic controller input protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMBG5358B/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, mixed-signal, and RF solutions for aerospace, defense, and industrial markets.
The SMBG53xxB series was designed specifically for surface-mount voltage regulation and transient suppression in harsh-environment power systems where JEDEC-compatibility, surge resilience, and moisture-insensitive packaging are mandatory.
FAQ
What is the Zener voltage tolerance for SMBG5358B/TR13?
The "B" suffix in SMBG5358B/TR13 specifies a ±5% Zener voltage tolerance, meaning its breakdown voltage is guaranteed between 20.9 V and 23.1 V at 50 mA test current and 25 °C. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range of –65 °C to +150 °C.
Does SMBG5358B/TR13 require dry packing before reflow soldering?
No, SMBG5358B/TR13 has IPC/JEDEC J-STD-020B Level 1 moisture sensitivity - it may be stored and processed directly from sealed tape-and-reel packaging without baking or dry-pack conditioning. This eliminates moisture-related defects such as popcorning during reflow and simplifies manufacturing logistics.
What is the maximum continuous current SMBG5358B/TR13 can handle at room temperature?
At lead temperature (TL) below 25 °C, SMBG5358B/TR13 supports up to 75 mA continuous Zener current (IZM) while dissipating its full 5.0 W rating. When mounted on a standard FR4 board, derating begins above 25 °C ambient, delivering ~1.38 W at 25 °C ambient due to RθJA = 90 °C/W.
How does the DO-215AA package of SMBG5358B/TR13 differ from DO-214AA?
The DO-215AA gull-wing package of SMBG5358B/TR13 features straight, outward-bent leads enabling optical solder-joint inspection and improved coplanarity control, whereas DO-214AA (used in SMBJ5358) has J-bend leads that sit closer to the board. Both share identical thermal and electrical specs, but DO-215AA supports higher reflow yield in fine-pitch SMT lines.
Is SMBG5358B/TR13 compatible with lead-free reflow profiles?
Yes, SMBG5358B/TR13 is RoHS-compliant with annealed matte-tin plating and rated for solder temperatures up to 260 °C for 10 seconds - fully compatible with standard lead-free reflow profiles (e.g., JEDEC J-STD-020D). Its UL94V-0 epoxy body remains stable under peak reflow conditions without delamination or cracking.
SMBG5358B/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)
SMBG5358B/TR13 FAQ
1.How can I place an order for SMBG5358B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5358B/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 SMBG5358B/TR13 reliable?
The price and inventory of SMBG5358B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5358B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5358B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5358B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5358B/TR13?
SMBG5358B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5358B/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 SMBG5358B/TR13?
For technical support, including SMBG5358B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5358B/TR13 requirements.
6.How does Aetrix verify that SMBG5358B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5358B/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 SMBG5358B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5358B/TR13?
All SMBG5358B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5358B/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 SMBG5358B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5358B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5358B/TR13 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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