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Microchip Technology SMBG5354B/TR13
- Part No.:
- SMBG5354B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5354B/TR13.pdf
- Description:
- DIODE ZENER 17V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,331
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Product details
Overview
SMBG5354B/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal Zener voltage of 17 V, ±5% tolerance (B suffix), 70 mA test current (IZT), 2.5 Ω dynamic impedance (ZZT), and 5.8 mA maximum regulator current (IZM) at 25 °C ambient on FR4 board. It serves as a precision voltage reference or shunt regulator in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the SMBG5354B/TR13 datasheet, SMBG5354B/TR13 pinout, SMBG5354B/TR13 application, or SMBG5354B/TR13 equivalent, this part delivers stable 17 V regulation under varying load and temperature, supports high-surge stress up to 5.8 A (8.3 ms half-sine), and features gull-wing DO-215AA packaging for visible solder joints and Level 1 moisture sensitivity.
Technical Context
This device operates in reverse-biased breakdown mode, maintaining 17 V across its terminals when reverse current exceeds the knee point (IZK ≈ 1.0 mA). Its low dynamic impedance (2.5 Ω) ensures minimal voltage variation over regulated current range (1–5.8 mA).
Thermal design relies on junction-to-lead resistance of 25 °C/W and junction-to-ambient resistance of 90 °C/W on FR4 with recommended footprint. Power derating begins above 25 °C ambient, dropping to zero at 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 17 V ±5% at 70 mA - defines precise regulation setpoint for feedback or clamping |
| Test Current (IZT) | 70 mA - operating point where VZ and ZZT are specified; used for calibration and stability verification |
| Dynamic Impedance (ZZT) | 2.5 Ω - low AC impedance ensures <175 mV deviation per 70 mA load change near IZT |
| Max Regulator Current (IZM) | 5.8 mA at TA = 25 °C on FR4 - maximum continuous DC current before thermal runaway without heatsink |
| Surge Current (IZSM) | 5.8 A (8.3 ms half-sine) - withstands transient overvoltage events like ESD or load dump |
| Junction Temp Range | −65 to +150 °C - enables operation in automotive under-hood and industrial control environments |
| Moisture Sensitivity | Level 1 per J-STD-020B - no dry pack required; simplifies SMT handling and storage |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; polarity requires banded end to be positive relative to anode during regulation. Weight: 0.1 g. UL94V-0 thermosetting epoxy body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to voltage rail being stabilized; reverse-biased during Zener operation |
| Anode | Reference/return node | Typically tied to ground or lower-potential reference; completes regulation current path |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5354B equivalent | Identical electrical specs and test methods - enables drop-in replacement in legacy designs |
| Gull-wing leadform (DO-215AA) | Visible solder joints enable AOI inspection and improve reworkability vs. J-bend packages |
| RoHS-compliant matte-tin plating | Meets IPC/JEDEC solderability standard 2026 - ensures reliable reflow on Pb-free assembly lines |
| Level 1 moisture sensitivity | No dry pack or baking required - reduces manufacturing overhead and floor-life constraints |
| High surge current rating | 5.8 A non-repetitive peak - protects downstream circuitry from 8.3 ms transients without external TVS |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing error amplifier reference in isolated flyback converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 17 V setpoint for TL431-like comparator input. Use Value: Maintains ±1% output regulation across line/load/temperature with 2.5 Ω dynamic impedance limiting feedback error. |
Use Scenario: Biasing and clamping analog front-end inputs in 4–20 mA transmitter modules. IC Role / Device Role / Timing Role: Overvoltage protector and precision bias source for op-amp input stages. Use Value: Limits input to 17.85 V max (17 V × 1.05) while drawing only 1 µA leakage below 12.2 V, preserving signal integrity. |
| Automotive Body Control Module | Programmable Logic Controller I/O Protection |
Use Scenario: Clamping CAN transceiver VCC rail against load-dump spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Secondary shunt regulator absorbing transient energy exceeding primary TVS capability. Use Value: Withstands 5.8 A surge (8.3 ms) without degradation, extending system-level surge immunity beyond ISO 7637-2 Pulse 5a. |
Use Scenario: Protecting digital input optocoupler LEDs from field-wiring faults in factory automation PLCs. IC Role / Device Role / Timing Role: Reverse-biased clamp limiting input voltage to 17.85 V during 24 VDC wiring misconnects. Use Value: Prevents LED destruction while maintaining <1 µA leakage at 15 V - avoids false triggering of input logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5354B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZM specs; higher RθJA (150 °C/W) | Requires through-hole assembly; unsuitable for high-density SMT layouts | Select when legacy through-hole design or manual prototyping is required |
| SMBJ5354 | DO-214AA J-bend package; same VZ and tolerance; 3.5 Ω ZZT; 5.5 mA IZM; no RoHS e3 option listed | Lower profile but invisible solder joints; reduced surge margin (5.5 A vs. 5.8 A) | Select when board space is constrained but AOI inspection is not mandatory |
Compared with SMBG5354B/TR13, 1N5354B offers identical regulation performance but demands PCB real estate and assembly process changes, while SMBJ5354 trades minor impedance and surge margin for tighter height - making SMBG5354B/TR13 optimal for automated SMT with full traceability and robustness.
Availability
SMBG5354B/TR13 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, and automotive body control modules requiring stable component supply, RoHS compliance, and verified surge resilience.
Supply support for SMBG5354B/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 for surface-mount voltage regulation in space-constrained, thermally demanding applications where JEDEC compatibility, visible solder joints, and Level 1 moisture handling are critical.
FAQ
What is the Zener voltage tolerance for SMBG5354B/TR13?
The 'B' suffix in SMBG5354B/TR13 indicates a ±5% Zener voltage tolerance. At 25 °C, the measured VZ falls between 16.15 V and 17.85 V when tested at 70 mA. This tolerance is guaranteed per JEDEC 1N5354B specifications and applies across the full −65 to +150 °C junction temperature range.
Can SMBG5354B/TR13 replace 1N5354B in existing designs?
Yes - SMBG5354B/TR13 is a direct surface-mount functional and electrical replacement for axial-leaded 1N5354B. Both share identical VZ (17 V), IZT (70 mA), ZZT (2.5 Ω), and IZM (5.8 mA) values. The only differences are package (DO-215AA vs. T-18) and thermal resistance (RθJA = 90 °C/W vs. 150 °C/W), requiring layout update but no circuit redesign.
What is the maximum continuous power dissipation for SMBG5354B/TR13?
SMBG5354B/TR13 is rated for 5.0 W at lead temperature (TL) ≤ 25 °C. When mounted on FR4 with recommended footprint, its usable power drops to 1.38 W at 25 °C ambient due to RθJA = 90 °C/W. Derating follows the curve in Figure 1: power = 5.0 W × (1 − (TA − 25)/125) for TA up to 150 °C.
Does SMBG5354B/TR13 require dry packing before SMT assembly?
No - SMBG5354B/TR13 has IPC/JEDEC moisture sensitivity level 1, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing or baking. This eliminates pre-reflow baking steps and reduces handling risk in high-volume SMT lines.
What is the reverse leakage current specification for SMBG5354B/TR13?
At VR = 12.2 V (72% of nominal VZ), SMBG5354B/TR13 guarantees IR ≤ 0.5 µA. This low leakage preserves efficiency in high-impedance bias networks and prevents false triggering in protection circuits - confirmed per MIL-STD-750 Method 1020 ESD testing.
SMBG5354B/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):
- 17 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 2.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 12.2 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)
SMBG5354B/TR13 FAQ
1.How can I place an order for SMBG5354B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5354B/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 SMBG5354B/TR13 reliable?
The price and inventory of SMBG5354B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5354B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5354B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5354B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5354B/TR13?
SMBG5354B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5354B/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 SMBG5354B/TR13?
For technical support, including SMBG5354B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5354B/TR13 requirements.
6.How does Aetrix verify that SMBG5354B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5354B/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 SMBG5354B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5354B/TR13?
All SMBG5354B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5354B/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 SMBG5354B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5354B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5354B/TR13 Tags
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
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SMAZ12-13-F
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