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Microchip Technology SMBG5359BE3/TR13
- Part No.:
- SMBG5359BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5359BE3/TR13.pdf
- Description:
- DIODE ZENER 24V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,117
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Product details
Overview
SMBG5359BE3/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 24 V, ±5% tolerance (B suffix), RoHS-compliant matte-tin plating (e3), and DO-215AA gull-wing package. It regulates voltage across wide current and temperature ranges and is used in power supply overvoltage protection and reference circuits.
For engineers reviewing the SMBG5359BE3/TR13 datasheet, SMBG5359BE3/TR13 pinout, SMBG5359BE3/TR13 application, or SMBG5359BE3/TR13 equivalent, key selection criteria include Zener voltage accuracy, surge current capability (198 A), thermal resistance (90 °C/W on FR4), and JEDEC 1N5359B equivalence for legacy design migration.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, with specified test current IZT = 50 mA and dynamic impedance ZZT = 3.5 Ω at that point. Its knee impedance ZZK is 198 Ω at 1.0 mA, indicating stable regulation onset.
It delivers 5.0 W dissipation at lead temperature TL < 25 °C, derating linearly above that per Figure 1; maximum regulator current IZM is 100 mA, calculated as PD/VZM where VZM = 25.2 V (24 V × 1.05).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V ±5% at IZT = 50 mA - defines precise clamping threshold for overvoltage protection. |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via PCB copper pour or heatsinking for sustained operation. |
| Dynamic Impedance (ZZT) | 3.5 Ω at IZT = 50 mA - ensures minimal voltage shift under load current variation. |
| Max Surge Current (IZSM) | 198 A (8.3 ms half-sine) - withstands transient surges such as ESD or inductive kickback. |
| Reverse Leakage (IR) | 0.5 µA at VR = 19.4 V - guarantees low standby power loss in high-impedance bias networks. |
| Junction Temp Range | –65 to +150 °C - supports industrial and automotive under-hood applications without derating. |
| Thermal Resistance RθJA | 90 °C/W on FR4 (1 oz Cu) - informs PCB layout requirements for thermal performance. |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode indicated by band; banded end must be held positive relative to anode during operation. Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse-bias regulation | Connected to higher-potential rail; clamps voltage when reverse voltage exceeds 24 V. |
| Anode (unbanded end) | Reference/ground terminal | Typically tied to system ground or low-side reference; completes Zener conduction path. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5359B equivalence | Identical electrical specs and test methods - enables drop-in replacement in legacy through-hole designs using adapter footprints. |
| Gull-wing leads (DO-215AA) | Visible solder joints and automated optical inspection compatibility - improves manufacturing yield and reliability verification. |
| RoHS-compliant matte-tin plating (e3) | Lead-free assembly compatible with Pb-free reflow profiles up to 260 °C for 10 s - meets global environmental compliance mandates. |
| Level 1 moisture sensitivity | No dry pack or baking required before SMT placement - reduces handling cost and avoids moisture-induced popcorning. |
| High IZSM/IZM ratio (198 A / 100 mA) | Robust transient suppression without sacrificing steady-state regulation precision - ideal for input-stage surge protection. |
Applications
| Power Supply Overvoltage Clamp | DC-DC Converter Reference |
|---|---|
Use Scenario: Placed across output of isolated flyback converter to limit voltage spikes during load dump or feedback loop failure. IC Role / Device Role / Timing Role: Passive voltage clamp protecting downstream regulators and microcontrollers from destructive overvoltage events. Use Value: 24 V clamping threshold aligns with 24 V industrial bus standards; 198 A surge rating absorbs repetitive transients without degradation. |
Use Scenario: Provides stable reference voltage for error amplifier in adjustable buck controller feedback network. IC Role / Device Role / Timing Role: Precision Zener reference establishing regulated output setpoint independent of input ripple or load variation. Use Value: ±5% tolerance and 3.5 Ω dynamic impedance ensure output voltage stability within ±0.5% over 10–100 mA load range. |
| Automotive Load Dump Protection | Industrial Sensor Signal Conditioning |
Use Scenario: Mounted at vehicle battery input to suppress 120 V/100 ms load dump pulses per ISO 7637-2. IC Role / Device Role / Timing Role: Primary transient voltage suppression element shunting energy into chassis ground during alternator field collapse. Use Value: 5.0 W continuous rating and 198 A peak surge capacity meet Class III load dump requirements without external series impedance. |
Use Scenario: Biased in series with 4–20 mA transmitter output to establish fixed headroom voltage for active current source circuitry. IC Role / Device Role / Timing Role: Stable voltage reference enabling accurate current loop calibration and fault detection thresholds. Use Value: –65 to +150 °C operating range and low tempco support operation in uncontrolled industrial enclosures; 0.5 µA leakage minimizes error in µA-level bias paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5359B | Same VZ, IZT, ZZT, and IZM; axial-leaded T-18 package instead of DO-215AA. | Requires through-hole PCB assembly and manual rework; not suitable for high-density SMT lines. | Select when retrofitting legacy boards or prototyping with breadboards where gull-wing handling is impractical. |
| SMBJ5359 | Same VZ and tolerance; J-bend DO-214AA package with RθJA = 100 °C/W (vs. 90 °C/W for SMBG5359BE3/TR13). | Slightly lower thermal performance on identical PCB; same tape-and-reel packaging (TR suffix). | Select when existing DO-214AA footprint is fixed and marginal thermal margin exists; verify junction temp rise under worst-case load. |
Compared with 1N5359B and SMBJ5359, SMBG5359BE3/TR13 offers superior thermal resistance (90 vs. ≥100 °C/W), visible gull-wing solder joints for AOI, and RoHS compliance without trade-offs in regulation accuracy or surge robustness.
Availability
SMBG5359BE3/TR13 is available at Aetrix Electronics and suitable for power supply overvoltage protection, DC-DC converter reference, and automotive load dump protection requiring stable component supply and full traceability.
Supply support for SMBG5359BE3/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.
SMBG5359BE3/TR13 belongs to the SMBG53xxB family of 5 W surface-mount Zeners designed for high-density, high-surge industrial and automotive voltage regulation where JEDEC compatibility and visual solder inspection are critical.
FAQ
What is the Zener voltage tolerance for SMBG5359BE3/TR13?
The 'B' suffix in SMBG5359BE3/TR13 specifies a ±5% Zener voltage tolerance. At 24 V nominal, this means the actual VZ falls between 22.8 V and 25.2 V when measured at IZT = 50 mA and TL = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0246-1 datasheet.
Is SMBG5359BE3/TR13 RoHS compliant?
Yes, SMBG5359BE3/TR13 is RoHS compliant, as indicated by the 'e3' suffix in the part number. The device uses annealed matte-tin plating per MIL-STD-750 method 2026 and meets EU Directive 2011/65/EU requirements. This is explicitly stated in the Features section and Part Nomenclature block of the datasheet.
What is the maximum surge current rating for SMBG5359BE3/TR13?
SMBG5359BE3/TR13 has a maximum non-repetitive Zener surge current (IZSM) of 198 A for an 8.3 ms half-sine waveform, as listed in the Electrical Characteristics table. This value is validated per Microsemi's test methodology and reflects the device's ability to absorb transient energy without failure.
How does the thermal resistance of SMBG5359BE3/TR13 compare between junction-to-lead and junction-to-ambient?
SMBG5359BE3/TR13 has RθJL = 25 °C/W and RθJA = 90 °C/W (on FR4 with 1 oz Cu). The 3.6× difference highlights that effective heat transfer relies heavily on PCB copper area and thermal vias - direct lead-to-heatsink mounting significantly improves thermal performance over ambient-only dissipation.
Can SMBG5359BE3/TR13 replace 1N5359B in existing designs?
Yes, SMBG5359BE3/TR13 is electrically equivalent to 1N5359B per the datasheet's DESCRIPTION section, sharing identical VZ, IZT, ZZT, and IZM. However, the DO-215AA gull-wing package requires PCB footprint adaptation; it is not a mechanical drop-in but a functional upgrade for SMT production.
SMBG5359BE3/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):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 17.3 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)
SMBG5359BE3/TR13 FAQ
1.How can I place an order for SMBG5359BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5359BE3/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 SMBG5359BE3/TR13 reliable?
The price and inventory of SMBG5359BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5359BE3/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5359BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5359BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5359BE3/TR13?
SMBG5359BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5359BE3/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 SMBG5359BE3/TR13?
For technical support, including SMBG5359BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5359BE3/TR13 requirements.
6.How does Aetrix verify that SMBG5359BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5359BE3/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 SMBG5359BE3/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5359BE3/TR13?
All SMBG5359BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5359BE3/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 SMBG5359BE3/TR13 part is unused and in its original packaging.
Return procedure for SMBG5359BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5359BE3/TR13 Tags
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