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Taiwan Semiconductor Corporation 1SMA5930
- Part No.:
- 1SMA5930
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
1SMA5930.pdf
- Description:
- DIODE ZENER 16V 1.5W DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,661
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Product details
Overview
1SMA5930 from Taiwan Semiconductor is a 1.5W surface-mount Zener diode with nominal zener voltage of 16V (±5%), 10.0Ω dynamic impedance at 23.4mA test current, and maximum leakage current of 0.5µA at 12.2V reverse bias. It features glass-passivated junction, DO-214AC (SMA) package, and is rated for 150°C junction temperature - used for precision voltage regulation in DC/DC converters and SMPS feedback loops.
For engineers reviewing the 1SMA5930 datasheet, 1SMA5930 pinout, 1SMA5930 application, or 1SMA5930 equivalent, key selection criteria include its 16V nominal zener voltage tolerance, 23.4mA test current, 10.0Ω dynamic impedance, low-profile SMA package, and Class 3B HBM ESD rating - all critical for stable voltage reference and overvoltage protection in compact power designs.
Technical Context
The 1SMA5930 operates as a single-die, unidirectional Zener regulator with cathode-band polarity indication and glass-passivated silicon junction for stable breakdown characteristics. Its 16V nominal zener voltage is guaranteed at thermal equilibrium with ±5% tolerance, and it maintains low dynamic impedance (10.0Ω at IZT = 23.4mA) to minimize output voltage variation under load changes.
Designed for surface-mount assembly on 5mm × 5mm Cu pads, the device supports automated placement and complies with JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity. It delivers 1.5W DC power dissipation at TL = 75°C with 20mW/°C derating above that temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.20–16.80 V (nominal 16 V, ±5% tolerance; defines stable regulation point) |
| Test Current (IZT) | 23.4 mA (standard operating point for VZ and ZZT specification) |
| Dynamic Impedance (ZZT) | 10.0 Ω (low AC resistance ensures minimal voltage shift with current ripple) |
| Max Leakage Current (IR) | 0.5 µA at 12.2 V (ensures negligible standby power loss in high-impedance bias networks) |
| Power Dissipation (PD) | 1.5 W (supports continuous regulation in space-constrained PCB layouts with adequate copper area) |
| Junction Temperature (TJ) | −55°C to +150°C (enables operation in industrial and automotive ambient environments) |
| Package | DO-214AC (SMA); 0.060 g weight, matte tin-plated leads, UL 94V-0 molding compound |
Pinout & Package
DO-214AC (SMA) package: surface-mount, single-ended, cathode indicated by band. Two-terminal device with axial symmetry; no internal connections beyond anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node; establishes reference for regulated output voltage |
| Cathode | Zener breakdown terminal / voltage regulation input | Connected to higher-potential rail; reverse-biased to maintain fixed VZ drop across load |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enhances long-term stability and reliability of VZ under thermal cycling and humidity exposure |
| Class 3B HBM ESD rating | Withstands ≥8 kV human-body-model discharge without parameter shift or failure |
| Low inductance construction | Minimizes voltage overshoot during fast transient events in switching regulators |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly processes |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
Applications
| Switching Mode Power Supply (SMPS) | On-board DC/DC Converter |
|---|---|
Use Scenario: Regulating feedback voltage in secondary-side error amplifiers of isolated flyback converters. IC Role / Device Role / Timing Role: Zener reference diode providing precise 16V clamp for optocoupler bias and TL431-like reference generation. Use Value: Tight ±5% VZ tolerance and 10.0Ω ZZT ensure stable loop response and <1% output voltage drift over line/load variations. |
Use Scenario: Setting output voltage threshold in non-isolated buck converter feedback divider networks. IC Role / Device Role / Timing Role: Precision shunt regulator replacing resistor-divider top leg to improve load regulation and temperature stability. Use Value: Low 0.5µA leakage at 12.2V enables high-resistance divider design, reducing quiescent current without sacrificing accuracy. |
| Lighting Application | Adapter Protection Circuit |
Use Scenario: Overvoltage clamping in LED driver constant-current IC supply rails. IC Role / Device Role / Timing Role: Transient voltage suppressor and steady-state clamp protecting driver IC VCC pin from surge-induced latch-up. Use Value: 1.5W power rating and 150°C TJ allow sustained clamping during thermal overload conditions in enclosed luminaires. |
Use Scenario: Input rail stabilization in wall-mounted AC/DC adapters with wide input range. IC Role / Device Role / Timing Role: Primary-side voltage reference for auxiliary supply regulation and brown-out detection. Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure robustness against solder joint fatigue and long-term storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor 1N5930B | Same 16V nominal VZ, ±5%, but 1.0W rating and DO-41 through-hole package | Requires PCB layout change; unsuitable for high-density SMT designs | Select only when through-hole assembly or legacy footprint compatibility is required |
| Vishay SZ1SMA5930-TP | Identical 16V VZ, 1.5W, DO-214AC package, but specified with tighter 10% leakage limit (vs. 0.5µA max at VR) | Valid for same SMPS/DC-DC use cases; minor parametric variance in IR test condition | Drop-in replacement with verified AEC-Q200 stress qualification for automotive-grade programs |
Compared with 1SMA5930, the 1N5930B requires board redesign due to through-hole packaging and lower power handling, while the SZ1SMA5930-TP offers identical form-factor and enhanced reliability validation - making it preferable for automotive or extended-lifecycle deployments where traceability and stress testing matter.
Availability
1SMA5930 is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply, consistent parametric performance, and full tape-and-reel logistics support.
Supply support for 1SMA5930 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components since 1979.
The 1SMA59xx series was developed specifically for high-reliability, surface-mount voltage regulation in compact power conversion systems - emphasizing thermal stability, low leakage, and automated assembly compatibility.
FAQ
What is the nominal zener voltage and tolerance of the 1SMA5930?
The 1SMA5930 has a nominal zener voltage of 16 V with a guaranteed tolerance of ±5%, meaning the actual VZ falls between 15.20 V and 16.80 V at IZT = 23.4 mA and thermal equilibrium. This tolerance is marked as "930A" on the device body and applies under standard test conditions per Taiwan Semiconductor's L2102 specification.
What is the maximum power dissipation and thermal derating behavior of the 1SMA5930?
The 1SMA5930 is rated for 1.5 W DC power dissipation at lead temperature (TL) = 75°C when mounted on a 5 mm × 5 mm copper pad. Above 75°C, it derates linearly at 20 mW/°C. At TL = 125°C, the usable power drops to 0.5 W. Junction temperature must not exceed +150°C under any operating condition.
Does the 1SMA5930 have ESD protection, and what is its rating?
Yes, the 1SMA5930 is rated Class 3B per JEDEC JS-001 for Human Body Model (HBM) ESD, meaning it withstands ≥8 kV discharges. This rating is achieved via glass-passivated junction construction and validated during TSC's production qualification - critical for handling safety in automated SMT lines and field-replaceable modules.
What is the dynamic impedance of the 1SMA5930, and why does it matter in regulation circuits?
The 1SMA5930 exhibits 10.0 Ω dynamic impedance (ZZT) at IZT = 23.4 mA. This low value means small changes in zener current produce minimal voltage variation - essential for maintaining tight output voltage control in feedback networks of DC/DC converters where ripple rejection and load step response depend directly on ZZT.
Is the 1SMA5930 suitable for high-humidity or long-life industrial applications?
Yes - the 1SMA5930 uses glass-passivated junction technology and meets J-STD-020 Moisture Sensitivity Level 1, eliminating pre-bake requirements. Its UL 94V-0 molding compound, matte tin-plated leads, and JESD201 Class 2 whisker resistance make it suitable for humid environments and multi-year deployments in industrial controls, LED drivers, and telecom power systems.
1SMA5930 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 1.5 W
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 12.2 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
1SMA5930 FAQ
1.How can I place an order for 1SMA5930 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1SMA5930 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 1SMA5930 reliable?
The price and inventory of 1SMA5930 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1SMA5930 is usually 5 days.
3.What payment methods are accepted for 1SMA5930?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1SMA5930 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1SMA5930?
1SMA5930 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1SMA5930 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 1SMA5930?
For technical support, including 1SMA5930 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1SMA5930 requirements.
6.How does Aetrix verify that 1SMA5930 is sourced from the original manufacturer or authorized distributors?
All 1SMA5930 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 1SMA5930 meets industry standards.
7.What is the process for return or replacement of 1SMA5930?
All 1SMA5930 units undergo pre-shipment inspection (PSI). If there is an issue with 1SMA5930, 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 1SMA5930 part is unused and in its original packaging.
Return procedure for 1SMA5930:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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