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Microchip Technology SMBG5382B/TR13
- Part No.:
- SMBG5382B/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5382B/TR13.pdf
- Description:
- DIODE ZENER 140V 5W DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,624
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Product details
Overview
SMBG5382B/TR13 from Microsemi is a surface-mount 5 W Zener diode with nominal breakdown voltage of 140 V, ±5% tolerance (B suffix), 8.0 mA test current (IZT), 230 Ω dynamic impedance (ZZT), and 1.2 A maximum surge current (IZSM); used for precision voltage regulation in power supply overvoltage protection circuits.
For engineers reviewing the SMBG5382B/TR13 datasheet, SMBG5382B/TR13 pinout, SMBG5382B/TR13 application, or SMBG5382B/TR13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJA = 90 °C/W), surge current capability (IZSM = 1.2 A), and DO-215AA gull-wing package compatibility with high-density PCB layouts.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable reference voltage across wide current (IZ = 8.0 mA to 34 mA) and temperature (-65 °C to +150 °C) ranges. Its low leakage (<0.5 µA at VR = 106 V) and minimal voltage drift versus current support robust regulation under transient load conditions.
The DO-215AA gull-wing package enables visible solder joints and meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity, eliminating dry-pack requirements. Thermal resistance junction-to-ambient (90 °C/W) is specified for FR4 board with recommended footprint, enabling reliable 5 W dissipation only when lead temperature (TL) is maintained below 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 140 V ±5% at IZT = 8.0 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation (PD) | 5.0 W at TL < 25 °C - requires thermal management via copper pour or heatsinking on leads |
| Dynamic Impedance (ZZT) | 230 Ω at IZT = 8.0 mA - determines regulation stiffness; lower values improve voltage stability under load variation |
| Max Surge Current (IZSM) | 1.2 A (8.3 ms half-sine) - withstands short-duration transients without degradation |
| Reverse Leakage (IR) | <0.5 µA at VR = 106 V - ensures minimal standby power loss in high-impedance bias networks |
| Junction Temp Range | -65 °C to +150 °C - supports operation in automotive under-hood and industrial ambient environments |
| Thermal Resistance RθJA | 90 °C/W on FR4 (1 oz Cu) - dictates minimum copper area needed to avoid thermal runaway at full power |
Pinout & Package
DO-215AA gull-wing surface-mount package with cathode band marking; terminals are anode and cathode - no internal connections beyond the two leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Positive terminal in reverse-bias operation | Connected to regulated rail or voltage node requiring clamping; polarity must be observed to avoid forward conduction |
| Anode | Reference/ground terminal | Typically tied to system ground or return path; establishes reference point for Zener voltage drop |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC 1N5382B equivalent | Identical electrical specs and test methods - enables drop-in replacement for legacy through-hole designs |
| RoHS-compliant matte-tin plating | Solderable per MIL-STD-750 Method 2026 - supports lead-free reflow without intermetallic reliability concerns |
| Level 1 moisture sensitivity | No dry pack required - simplifies handling, storage, and SMT line logistics |
| Gull-wing lead form | Visible solder joints on PCB - enables automated optical inspection (AOI) and reduces voiding risk |
| High surge current rating | 1.2 A non-repetitive peak - protects downstream circuitry from lightning-induced or inductive-switching transients |
Applications
| Industrial Power Supply Protection | Automotive ECU Voltage Clamp |
|---|---|
Use Scenario: Clamping transient spikes on 12 V or 24 V DC input rails in programmable logic controllers and motor drives. IC Role / Device Role / Timing Role: Primary overvoltage protection element placed across bulk input capacitor. Use Value: Maintains 140 V clamp level with <0.5 µA leakage at 106 V, preventing MOSFET gate oxide failure during load dump events. |
Use Scenario: Suppressing load-dump transients (up to 120 V) in engine control units and body electronics modules. IC Role / Device Role / Timing Role: Standby shunt regulator that activates only during overvoltage excursions. Use Value: Withstands 1.2 A surge (8.3 ms) without parameter shift, meeting ISO 7637-2 Pulse 5a requirements. |
| Telecom Line Card Surge Suppression | Medical Imaging HV Bias Regulation |
Use Scenario: Secondary protection stage after TVS diodes on -48 V telecom distribution boards. IC Role / Device Role / Timing Role: Precision voltage reference for crowbar circuit triggering thresholds. Use Value: ±5% VZ tolerance ensures consistent trip point across production lots; 230 Ω ZZT minimizes regulation error under varying bias current. |
Use Scenario: Stabilizing bias voltage for photomultiplier tube (PMT) anode chains operating near 100–150 V. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage reference in high-impedance analog signal paths. Use Value: Minimal voltage change vs. current (low ZZT) and <0.5 µA IR at 106 V preserve signal integrity and reduce dark current drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5382B | Axial-leaded T-18 package; identical VZ, IZT, ZZT, and IZSM specs; RθJA not specified due to different thermal path. | Requires through-hole assembly and larger board area; unsuitable for high-density SMT layouts. | Select 1N5382B only when legacy through-hole manufacturing or manual repair constraints apply. |
| SMBJ5382B | DO-214AA (J-bend) package; same electrical specs but higher RθJA (~100 °C/W) and reduced surge margin (IZSM = 1.0 A). | Compatible with standard SMT pick-and-place but less robust under repeated surge stress. | Choose SMBJ5382B if DO-214AA footprint is already standardized and surge duty cycle is infrequent. |
Compared with SMBG5382B/TR13, 1N5382B offers identical regulation performance but lacks SMT compatibility, while SMBJ5382B trades 17% lower surge current and higher thermal resistance for J-bend mount flexibility - making SMBG5382B/TR13 optimal for space-constrained, high-reliability 5 W clamping.
Availability
SMBG5382B/TR13 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive ECU voltage clamp, and telecom line card surge suppression requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMBG5382B/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 in high-density power systems where JEDEC-compatibility, surge resilience, and moisture-insensitive packaging are critical.
FAQ
What is the Zener voltage tolerance for SMBG5382B/TR13?
The "B" suffix in SMBG5382B/TR13 indicates a ±5% Zener voltage tolerance. At 140 V nominal, this corresponds to a guaranteed range of 133 V to 147 V when measured at IZT = 8.0 mA and TL = 25 °C. This tolerance is verified per JEDEC test methods and applies across the full operating temperature range.
Can SMBG5382B/TR13 replace 1N5382B in existing designs?
Yes, SMBG5382B/TR13 is electrically identical to 1N5382B and qualifies as a surface-mount functional replacement. However, it uses a DO-215AA gull-wing package instead of the axial T-18 package - requiring PCB layout revision. No changes to circuit performance or thermal design assumptions are needed beyond adapting the footprint.
What is the maximum continuous power dissipation for SMBG5382B/TR13?
SMBG5382B/TR13 is rated for 5.0 W continuous power dissipation only when the lead temperature (TL) is held below 25 °C. On a standard FR4 board with recommended pad layout, derating begins above 25 °C ambient, reaching zero dissipation at ~125 °C ambient due to its 90 °C/W RθJA.
Does SMBG5382B/TR13 require dry packing before reflow soldering?
No. SMBG5382B/TR13 has a moisture sensitivity level (MSL) of Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ≤30 °C/60% RH without dry packing. This eliminates baking steps and simplifies SMT line handling compared to higher-MSL discrete components.
What is the reverse leakage current specification for SMBG5382B/TR13?
SMBG5382B/TR13 guarantees reverse leakage current (IR) of ≤0.5 µA when tested at VR = 106 V (75% of nominal VZ) and TL = 25 °C. This ultra-low leakage supports high-impedance bias networks and minimizes standby power loss in always-on protection circuits.
SMBG5382B/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):
- 140 V
- Tolerance:
- ±5%
- Power - Max:
- 5 W
- Impedance (Max) (Zzt):
- 230 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 101 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)
SMBG5382B/TR13 FAQ
1.How can I place an order for SMBG5382B/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5382B/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 SMBG5382B/TR13 reliable?
The price and inventory of SMBG5382B/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG5382B/TR13 is usually 5 days.
3.What payment methods are accepted for SMBG5382B/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5382B/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5382B/TR13?
SMBG5382B/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5382B/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 SMBG5382B/TR13?
For technical support, including SMBG5382B/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5382B/TR13 requirements.
6.How does Aetrix verify that SMBG5382B/TR13 is sourced from the original manufacturer or authorized distributors?
All SMBG5382B/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 SMBG5382B/TR13 meets industry standards.
7.What is the process for return or replacement of SMBG5382B/TR13?
All SMBG5382B/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5382B/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 SMBG5382B/TR13 part is unused and in its original packaging.
Return procedure for SMBG5382B/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5382B/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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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
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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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