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onsemi 1N5244B_S00Z
- Part No.:
- 1N5244B_S00Z
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5244B_S00Z.pdf
- Description:
- DIODE ZENER 14V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:5,957
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Product details
Overview
1N5244B_S00Z from ON Semiconductor is a 14 V, ±5% tolerance, 500 mW silicon Zener diode in DO-35 glass package, designed for precision voltage regulation and reference applications in low-power analog circuits, power supply feedback loops, and overvoltage protection. It delivers 14.7 V nominal Zener voltage at 5 mA test current with 15 Ω dynamic impedance and ±0.080 %/°C temperature coefficient.
For engineers reviewing the 1N5244B_S00Z datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage accuracy, thermal stability in ambient-temperature-varying environments, low leakage current (0.1 μA at 11.2 V), and compatibility with through-hole PCB layouts requiring DO-35 footprint compliance.
Technical Context
This device operates as a two-terminal voltage-reference element relying on reverse-biased Zener breakdown. Its junction temperature range spans −65 °C to +200 °C, and it is rated for 500 mW steady-state power dissipation at 25 °C, derating linearly by 4.0 mW/°C above 50 °C. The cathode is marked by a color band on the DO-35 glass case.
Electrical behavior is defined at thermal equilibrium with lead temperature held at 30 °C ±1 °C and 3/8″ lead length. Forward voltage is specified ≤1.2 V at 200 mA, confirming standard silicon PN junction characteristics alongside Zener functionality.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14 V nominal, min 13.3 V / max 14.7 V at IZ = 5 mA - defines stable regulation point under standard test conditions |
| Power Dissipation (PD) | 500 mW at TA = 25 °C - sets maximum continuous DC power handling before thermal shutdown risk |
| Zener Impedance (ZZ) | 15 Ω at IZ = 5 mA - indicates low AC impedance for stable reference under small-signal ripple |
| Temperature Coefficient (TC) | ±0.080 %/°C - quantifies voltage drift per degree Celsius, critical for temperature-sensitive references |
| Reverse Leakage (IR) | 0.1 μA at VR = 11.2 V - ensures minimal parasitic current in high-impedance bias networks |
| Package | DO-35 glass axial - industry-standard hermetically sealed through-hole package with cathode band marking |
Pinout & Package
DO-35 glass axial package: hermetically sealed, 0.137 g weight, 4.56 mm body length, 1.91 mm max diameter, cathode identified by single color band. Leads are tinned copper-clad steel, suitable for wave soldering (lead temp ≤230 °C for 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node in regulation circuit; forms return path for Zener current |
| Cathode | Zener breakdown terminal / voltage reference output | Marked with color band; connected to regulated voltage node; supplies stable reference potential |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage reference | 14 V ±5% tolerance enables use in feedback networks where ±0.7 V absolute error is acceptable |
| Low dynamic impedance | 15 Ω at 5 mA supports stable regulation under load transients up to ~1 mA peak deviation |
| Negligible leakage current | 0.1 μA at 11.2 V minimizes error in high-resistance divider-based reference designs |
| Wide operating temperature range | −65 °C to +200 °C junction rating allows deployment in automotive under-hood or industrial control environments |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Regulating output voltage of linear or switching power supplies via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference node defining setpoint for error amplifier comparison. Use Value: 14 V nominal voltage matches common TL431 shunt regulator auxiliary reference requirements and provides margin against 12 V rail overvoltage. | Use Scenario: Protecting microcontroller I/O pins from transient voltage spikes exceeding 12 V. IC Role / Device Role / Timing Role: Clamping element diverting excess energy to ground when input exceeds 14 V threshold. Use Value: 15 Ω Zener impedance ensures fast response to <100 ns spikes while limiting clamping voltage overshoot to <15.5 V. |
| Voltage Reference Divider | Current Source Bias |
Use Scenario: Generating precise bias voltage for op-amp input stages or ADC reference buffers. IC Role / Device Role / Timing Role: Stable DC reference source in resistive divider network feeding precision analog circuitry. Use Value: ±0.080 %/°C TC limits drift to ±11.2 mV over 0–70 °C ambient, supporting 12-bit system accuracy. | Use Scenario: Establishing constant current for LED bias or sensor excitation in portable instrumentation. IC Role / Device Role / Timing Role: Voltage reference enabling two-resistor current mirror or Howland current source topology. Use Value: 500 mW power rating supports ≥35 mA current sourcing capability with external series resistor, sufficient for indicator LEDs and low-power sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal, 1 W power rating, DO-41 package, 22 Ω ZZ | Higher power handling but looser 5% tolerance and higher impedance reduce precision in low-current references | Select when higher power margin or DO-41 footprint compatibility is required over tight TC or low-Z performance |
| BZX55C15 | 15 V nominal, 500 mW, DO-35, ±5%, 15 Ω ZZ, TC = ±0.085 %/°C | 1 V higher nominal voltage shifts regulation point; identical package and thermal behavior | Choose when 15 V setpoint aligns with system rail architecture and 1 V offset is acceptable in feedback design |
Compared with 1N4742A and BZX55C15, the 1N5244B_S00Z offers tighter thermal stability (±0.080 %/°C vs. ±0.085 %/°C) and lower Zener impedance than the 1N4742A, while matching BZX55C15's package and power rating but differing in nominal voltage-making it optimal for 14 V-specific feedback or clamp targets.
Availability
1N5244B_S00Z is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and precision voltage reference applications requiring stable component supply across industrial control, test equipment, and embedded power management designs.
Supply support for 1N5244B_S00Z 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
ON Semiconductor (Semiconductor Components Industries, LLC) is a global supplier of energy-efficient semiconductor components for automotive, industrial, cloud computing, medical, and IoT applications.
The 1N52xxB series is part of ON Semiconductor's legacy Zener diode portfolio, engineered for general-purpose voltage regulation and reference functions in cost-sensitive, space-constrained through-hole designs.
FAQ
What is the nominal Zener voltage of the 1N5244B_S00Z?
The 1N5244B_S00Z has a nominal Zener voltage of 14 V, with a guaranteed range of 13.3 V to 14.7 V at a test current of 5 mA. This value is measured under thermal equilibrium conditions with lead temperature held at 30 °C ±1 °C and 3/8″ lead length, per ON Semiconductor's characterization methodology.
Does the 1N5244B_S00Z have a specified forward voltage?
Yes, the 1N5244B_S00Z specifies a maximum forward voltage of 1.2 V at 200 mA forward current. This parameter confirms its standard silicon PN junction behavior in forward bias and supports use in dual-role circuits requiring both Zener regulation and rectification capability.
What is the Zener impedance of the 1N5244B_S00Z and why does it matter?
The 1N5244B_S00Z exhibits a Zener impedance (ZZ) of 15 Ω at 5 mA test current. This low value ensures minimal voltage variation under small-signal AC ripple or load transients, making it suitable for stable reference generation in analog signal chains and feedback loops where regulation fidelity is critical.
Can the 1N5244B_S00Z be used in high-temperature environments?
Yes, the 1N5244B_S00Z supports an operating junction temperature range of −65 °C to +200 °C and a storage temperature range of −65 °C to +200 °C. Its DO-35 glass package maintains hermetic sealing across this range, enabling deployment in under-hood automotive or industrial motor-control applications.
How is the cathode identified on the 1N5244B_S00Z package?
The cathode of the 1N5244B_S00Z is identified by a single color band on the DO-35 glass case. This marking follows JEDEC DO-204AH standard and aligns with industry convention for axial-leaded Zener diodes, ensuring unambiguous polarity during manual or automated assembly.
1N5244B_S00Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 14 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-35
1N5244B_S00Z FAQ
1.How can I place an order for 1N5244B_S00Z through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5244B_S00Z 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 1N5244B_S00Z reliable?
The price and inventory of 1N5244B_S00Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5244B_S00Z is usually 5 days.
3.What payment methods are accepted for 1N5244B_S00Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5244B_S00Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5244B_S00Z?
1N5244B_S00Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5244B_S00Z 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 1N5244B_S00Z?
For technical support, including 1N5244B_S00Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5244B_S00Z requirements.
6.How does Aetrix verify that 1N5244B_S00Z is sourced from the original manufacturer or authorized distributors?
All 1N5244B_S00Z 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 1N5244B_S00Z meets industry standards.
7.What is the process for return or replacement of 1N5244B_S00Z?
All 1N5244B_S00Z units undergo pre-shipment inspection (PSI). If there is an issue with 1N5244B_S00Z, 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 1N5244B_S00Z part is unused and in its original packaging.
Return procedure for 1N5244B_S00Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5244B_S00Z Tags
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MMBZ5240B-7-F
Diodes Incorporated
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