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Vishay General Semiconductor - Diodes Division SMBZ5932B-M3/5B
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- Part No.:
- SMBZ5932B-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Zener Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBZ5932B-M3/5B.pdf
- Description:
- DIODE ZENER 20V 550MW DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,955
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Product details
Overview
SMBZ5932B-M3/5B from Vishay General Semiconductor is a surface-mount Zener voltage-regulating diode with nominal Zener voltage 20 V, maximum Zener impedance 650 Ω at 14 mA test current, and power dissipation of 550 mW at 25 °C ambient temperature. It operates in single-diode configuration for precision DC voltage reference and overvoltage protection in power supply rails.
For engineers reviewing the SMBZ5932B-M3/5B datasheet, SMBZ5932B-M3/5B pinout, SMBZ5932B-M3/5B application, or SMBZ5932B-M3/5B equivalent, key selection criteria include Zener voltage tolerance (±5 %), low regulation factor, MSL level 1 moisture sensitivity, and SMB (DO-214AA) package compatibility with automated SMT assembly.
Technical Context
This device functions as a two-terminal, silicon planar Zener diode operating in reverse breakdown mode to maintain stable voltage across load variations. Its electrical behavior is defined by specified Zener voltage (19.0–21.0 V), dynamic impedance (≤650 Ω at IZT = 14 mA), and low leakage current (≤1 μA at 15.2 V).
Thermal performance is characterized by junction-to-lead thermal resistance of 25 °C/W and junction-to-ambient resistance of 226 °C/W under standard mounting conditions. The device supports operation from –55 °C to +150 °C and meets JESD201 Class 2 whisker testing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 19.0 V min / 20.0 V nom / 21.0 V max - defines regulated output voltage range under 14 mA test current |
| Power Dissipation (Ptot) | 550 mW at TA = 25 °C - limits continuous DC power handling on standard PCB pad layout |
| Zener Impedance (ZZT) | ≤650 Ω at IZT = 14 mA - determines regulation accuracy under load transients |
| Reverse Leakage Current (IR) | ≤1 μA at VR = 15.2 V - ensures minimal standby current in protection circuits |
| Junction Temperature Range | –55 °C to +150 °C - enables use in industrial and automotive under-hood environments |
| Package | SMB (DO-214AA) - surface-mount outline with cathode band marking and 226 °C/W thermal resistance |
Pinout & Package
Two-terminal device in SMB (DO-214AA) package: anode and cathode terminals identified by molded cathode band. Mounting uses minimum recommended pad layout per datasheet Figure 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in Zener regulation; carries forward current up to 200 mA |
| Cathode | Reverse breakdown terminal | Connected to higher-potential node; sustains 20 V reverse bias and conducts regulation current |
Key Features
| Feature | Design Value |
|---|---|
| Low Zener impedance | 650 Ω max at 14 mA enables tight voltage regulation under varying load conditions |
| MSL Level 1 rating | Compatible with standard reflow profiles up to 260 °C peak, eliminating bake requirements |
| Halogen-free & RoHS-compliant | M3 suffix confirms compliance with environmental directives and JEDEC whisker testing Class 2 |
| Stable temperature coefficient | Typical TC near zero crossing around 20 V improves long-term voltage reference stability |
Applications
| Industrial Power Supply Regulation | Automotive ECU Voltage Reference |
|---|---|
Use Scenario: Stabilizing 24 V rail-derived 20 V reference for analog sensor signal conditioning in PLC modules. IC Role / Device Role / Timing Role: Zener diode providing passive, non-adjustable voltage clamp and reference point. Use Value: Delivers ±5 % voltage accuracy without active circuitry, reducing BOM count and failure modes. | Use Scenario: Overvoltage protection on microcontroller I/O lines exposed to 12 V battery transients in body control modules. IC Role / Device Role / Timing Role: Clamping diode shunting surge energy above 21 V to ground during load dump events. Use Value: Withstands 14 mA Zener current and operates up to 150 °C, meeting AEC-Q101 stress requirements. |
| Consumer Adapter Feedback Network | Medical Instrumentation Reference |
Use Scenario: Secondary-side voltage sensing in isolated flyback adapters where TL431 is unavailable or cost-prohibitive. IC Role / Device Role / Timing Role: Precision Zener element setting feedback threshold for optocoupler-driven regulation loop. Use Value: 20 V nominal voltage matches common auxiliary winding ratios; low ZZT minimizes regulation error. | Use Scenario: Low-drift DC reference for analog front-end amplifiers in portable diagnostic devices. IC Role / Device Role / Timing Role: Passive voltage reference establishing bias points for instrumentation-grade op-amps. Use Value: Stable 20 V output with <1 μA leakage ensures minimal input offset drift in high-impedance sensor paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5357B | Same 20 V nominal Zener voltage but in DO-201AD package; higher Ptot = 5 W at TL = 75 °C | Requires larger PCB footprint and manual or wave soldering; unsuitable for dense SMT layouts | Select when higher power derating margin is required and board space allows axial/through-hole placement |
| BZX84-C20 | 20 V Zener in SOT-23; lower Ptot = 300 mW at TA = 25 °C and higher ZZT = 50 Ω typical | Higher impedance and lower power limit restrict use to low-current references or signal-level clamping | Select for space-constrained designs where 14 mA test current and 650 Ω max impedance are not required |
Compared with 1N5357B and BZX84-C20, SMBZ5932B-M3/5B offers optimal balance of SMT compatibility, 550 mW ambient-rated power, and 650 Ω impedance-making it preferred for mid-power industrial regulation where DO-214AA footprint and MSL-1 reflow are mandatory.
Availability
SMBZ5932B-M3/5B is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, consumer adapter feedback networks, and medical instrumentation requiring stable component supply with halogen-free, RoHS-compliant sourcing.
Supply support for SMBZ5932B-M3/5B 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability and application-specific optimization.
The SMBZ59xxB series is designed for surface-mount voltage regulation and transient suppression in commercial and industrial systems, prioritizing low-profile packaging, automated assembly compatibility, and stable Zener characteristics across temperature.
FAQ
What is the Zener voltage tolerance for SMBZ5932B-M3/5B?
The SMBZ5932B-M3/5B has a Zener voltage range of 19.0 V (minimum) to 21.0 V (maximum) at 14 mA test current, corresponding to a ±5 % tolerance about the nominal 20 V value. This tolerance is guaranteed across the full operating temperature range and is measured under pulse conditions per JESD22-A114.
Does SMBZ5932B-M3/5B support lead-free reflow soldering?
Yes, SMBZ5932B-M3/5B is rated MSL Level 1 per J-STD-020 and qualified for peak reflow temperatures up to 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD22-B102 solderability standards, and the M3 suffix confirms halogen-free, RoHS-compliant construction.
What is the maximum steady-state Zener current for SMBZ5932B-M3/5B?
The maximum DC Zener current (IZM) for SMBZ5932B-M3/5B is 75 mA at TA = 25 °C, derived from its 550 mW power rating and 20 V nominal Zener voltage. At elevated ambient temperatures, derating applies per the thermal resistance curve in the Vishay datasheet Document Number 89418.
How does SMBZ5932B-M3/5B differ from the E3-suffix version?
The SMBZ5932B-M3/5B uses halogen-free molding compound and conforms to JEDEC JESD201 Class 2 whisker testing, while the E3-suffix variant is RoHS-compliant but not halogen-free. Both share identical electrical specifications, SMB package dimensions, and MSL Level 1 rating; only material composition and environmental compliance differ.
Can SMBZ5932B-M3/5B be used in place of a 20 V Zener in a linear regulator feedback path?
Yes, SMBZ5932B-M3/5B is routinely used in feedback networks of linear regulators and switching controllers where a stable 20 V reference is needed. Its 650 Ω Zener impedance and ≤1 μA leakage at 15.2 V ensure minimal loading error and predictable regulation setpoint-provided the external bias resistor delivers ≥14 mA at worst-case input voltage.
SMBZ5932B-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 20 V
- Tolerance:
- ±2%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 14 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 15.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBZ5932B-M3/5B FAQ
1.How can I place an order for SMBZ5932B-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBZ5932B-M3/5B 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 SMBZ5932B-M3/5B reliable?
The price and inventory of SMBZ5932B-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBZ5932B-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBZ5932B-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBZ5932B-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBZ5932B-M3/5B?
SMBZ5932B-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBZ5932B-M3/5B 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 SMBZ5932B-M3/5B?
For technical support, including SMBZ5932B-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBZ5932B-M3/5B requirements.
6.How does Aetrix verify that SMBZ5932B-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBZ5932B-M3/5B 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 SMBZ5932B-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBZ5932B-M3/5B?
All SMBZ5932B-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBZ5932B-M3/5B, 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 SMBZ5932B-M3/5B part is unused and in its original packaging.
Return procedure for SMBZ5932B-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBZ5932B-M3/5B Tags
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