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Taiwan Semiconductor Corporation 1SMA5930H
- Part No.:
- 1SMA5930H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
1SMA5930H.pdf
- Description:
- DIODE ZENER 16V 1.5W DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,667
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Product details
Overview
1SMA5930H from Taiwan Semiconductor is a surface-mount Zener diode rated for 1.5 W power dissipation, with a nominal zener voltage of 16 V (min 15.20 V, max 16.80 V) at 23.4 mA test current, 10 Ω dynamic impedance, and maximum leakage current of 0.5 µA at 12.2 V reverse bias. It serves as a precision voltage reference or overvoltage clamp in DC/DC converters and SMPS feedback loops.
For engineers reviewing the 1SMA5930H datasheet, 1SMA5930H pinout, 1SMA5930H application, or 1SMA5930H equivalent, key selection criteria include its AEC-Q101 qualification, DO-214AC (SMA) package compatibility with automated placement, glass-passivated junction, and guaranteed ±5% voltage tolerance at thermal equilibrium.
Technical Context
The 1SMA5930H operates as a single-die, unidirectional Zener regulator with cathode-band polarity indication. Its junction temperature range spans −55 °C to +150 °C, and it maintains stable regulation under DC conditions up to 1.5 W at 75 °C lead temperature, derating linearly above that point.
Electrical behavior is defined by three critical operating points: zener voltage VZ = 16 V @ IZT = 23.4 mA, knee impedance ZZK = 600 Ω @ IZK = 0.25 mA, and maximum DC zener current IZM = 94 mA - enabling reliable operation in both regulation and transient clamping roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.20–16.80 V at 23.4 mA - defines tight ±5% tolerance band for stable reference generation |
| Power Dissipation (PD) | 1.5 W at TL = 75 °C - supports continuous regulation in compact, thermally constrained layouts |
| Dynamic Impedance (ZZT) | 10 Ω @ 23.4 mA - ensures minimal output voltage variation under load current changes |
| Leakage Current (IR) | <0.5 µA @ 12.2 V - enables low-power standby mode integrity in battery-backed circuits |
| Junction Temperature (TJ) | −55 °C to +150 °C - qualifies for under-hood automotive and industrial ambient environments |
| ESD Rating | Class 3B (HBM) per JEDEC - withstands ≥8 kV human-body-model discharge without degradation |
| Package | DO-214AC (SMA) - surface-mount footprint compatible with standard reflow profiles and pick-and-place equipment |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with matte tin-plated leads, cathode indicated by a single band, weight ≈0.060 g, UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node in shunt regulation; forms return path for zener current |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; voltage at this terminal is stabilized at VZ relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under thermal and humidity stress |
| Low inductance construction | Minimizes voltage overshoot during fast transients, improving clamping response in SMPS |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing overhead and PCB handling risk |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS directives for environmentally restricted substances |
Applications
| Switching Mode Power Supply (SMPS) | On-Board DC/DC Converter |
|---|---|
Use Scenario: Regulating feedback voltage in isolated flyback or forward converter secondary-side error amplifiers. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 16 V threshold for optocoupler-driven control loop. Use Value: Maintains ±1% output regulation across line/load variations due to tight VZ tolerance and low ZZT. |
Use Scenario: Clamping gate drive voltage in synchronous buck converter high-side MOSFET drivers. IC Role / Device Role / Timing Role: Overvoltage protection element limiting driver IC supply rail to safe 16 V level. Use Value: Prevents driver latch-up or oxide damage during transient surges while drawing <0.5 µA in standby. |
| Lighting Application | Adapter Circuitry |
Use Scenario: Setting constant-current reference in LED driver IC feedback networks for architectural lighting. IC Role / Device Role / Timing Role: Precision voltage source defining LED string current via sense resistor scaling. Use Value: Enables <±2% current accuracy over −40 °C to +105 °C ambient thanks to AEC-Q101 thermal robustness. |
Use Scenario: Providing auxiliary bias voltage for PWM controller IC in AC/DC wall adapters. IC Role / Device Role / Timing Role: Low-power startup and hold-up supply derived from rectified AC line via resistive dropper. Use Value: Delivers stable 16 V rail with <0.5 µA leakage, minimizing no-load power loss and meeting DOE VI efficiency targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal, 1 W rating, DO-41 through-hole package | Not AEC-Q101 qualified; unsuitable for automotive or high-reliability surface-mount designs | Select only for cost-sensitive, non-automotive prototyping where manual assembly and lower power suffice |
| BZX84-C16 | 16 V nominal, 300 mW rating, SOT-23 package, ±5% tolerance | Lower power capability limits use to signal-level clamping or low-current references | Prefer for space-constrained logic-level protection; avoid in power regulation where 1.5 W dissipation is required |
Compared with 1SMA5930H, the 1N4742A lacks automotive qualification and surface-mount compatibility, while the BZX84-C16 offers identical voltage but insufficient power handling - making 1SMA5930H the sole choice for AEC-Q101-compliant, 1.5 W, SMA-packaged 16 V regulation.
Availability
1SMA5930H is available at Aetrix Electronics and suitable for switching mode power supplies, on-board DC/DC converters, and lighting applications requiring stable component supply, automotive-grade reliability, and surface-mount manufacturability.
Supply support for 1SMA5930H 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The 1SMA59xxH series was designed specifically for high-reliability, surface-mount voltage regulation in automotive power systems and industrial DC/DC modules, emphasizing AEC-Q101 compliance, thermal stability, and automated assembly readiness.
FAQ
What is the zener voltage tolerance of the 1SMA5930H?
The 1SMA5930H has a nominal zener voltage of 16 V with a guaranteed tolerance of ±5%, corresponding to a minimum of 15.20 V and maximum of 16.80 V when measured at IZT = 23.4 mA and thermal equilibrium. This tolerance is explicitly defined in the ordering code and confirmed in the electrical specifications table of the official datasheet Version A2102.
Is the 1SMA5930H suitable for automotive applications?
Yes, the 1SMA5930H is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per JEDEC standards. Its DO-214AC package, −55 °C to +150 °C junction temperature range, and Class 3B HBM ESD rating make it appropriate for under-hood and body-control module applications where the 1SMA5930H is deployed as a voltage reference or clamp.
What is the maximum DC zener current for the 1SMA5930H?
The maximum DC zener current (IZM) for the 1SMA5930H is 94 mA, calculated from PD = 1.5 W and VZ = 16 V. This value is specified in the Electrical Specifications table and reflects the highest continuous current the 1SMA5930H can sustain without exceeding its power rating at thermal equilibrium.
Does the 1SMA5930H have a glass-passivated junction?
Yes, the 1SMA5930H features a glass-passivated chip junction, as stated in the FEATURES section of the official datasheet. This construction improves long-term parameter stability, reduces leakage drift under thermal stress, and enhances resistance to environmental contaminants compared to epoxy-passivated alternatives.
What is the moisture sensitivity level (MSL) of the 1SMA5930H?
The 1SMA5930H has a moisture sensitivity level of MSL 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions without baking prior to reflow soldering. This eliminates pre-conditioning steps in manufacturing and reduces risk of popcorning during assembly - a key advantage for high-volume production using the 1SMA5930H.
1SMA5930H 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
1SMA5930H FAQ
1.How can I place an order for 1SMA5930H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1SMA5930H 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 1SMA5930H reliable?
The price and inventory of 1SMA5930H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1SMA5930H is usually 5 days.
3.What payment methods are accepted for 1SMA5930H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1SMA5930H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1SMA5930H?
1SMA5930H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1SMA5930H 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 1SMA5930H?
For technical support, including 1SMA5930H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1SMA5930H requirements.
6.How does Aetrix verify that 1SMA5930H is sourced from the original manufacturer or authorized distributors?
All 1SMA5930H 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 1SMA5930H meets industry standards.
7.What is the process for return or replacement of 1SMA5930H?
All 1SMA5930H units undergo pre-shipment inspection (PSI). If there is an issue with 1SMA5930H, 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 1SMA5930H part is unused and in its original packaging.
Return procedure for 1SMA5930H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1SMA5930H Tags
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