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onsemi 1N5240B_S00Z
- Part No.:
- 1N5240B_S00Z
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5240B_S00Z.pdf
- Description:
- DIODE ZENER 10V 500MW DO35
- Quantity:
- Payment:
- Shipping:
Inventory:4,733
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Product details
Overview
1N5240B_S00Z from ON Semiconductor is a 10 V ±5% tolerance, 500 mW DO-35 glass-encapsulated Zener diode optimized for voltage regulation and reference applications in low-power analog circuits, power supply feedback loops, and overvoltage protection. It delivers 17 Ω dynamic impedance at 20 mA test current, -65°C to +200°C operating junction temperature range, and 3.0 μA maximum reverse leakage at 7.6 V.
For engineers reviewing the 1N5240B_S00Z datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage accuracy, thermal stability (TC = +0.075 %/°C), low leakage at sub-Zener voltages, and DO-35 mechanical compatibility with legacy through-hole PCB layouts.
Technical Context
This discrete Zener diode operates in reverse breakdown mode to maintain stable DC voltage across its terminals under varying load and line conditions. Its DO-35 hermetically sealed glass package ensures long-term parameter stability and moisture resistance, critical for industrial and automotive environments where thermal cycling and humidity exposure occur.
The device exhibits a positive temperature coefficient (+0.075 %/°C) above 5 V, enabling predictable voltage drift with temperature-essential for precision biasing and reference generation. Its 20 mA nominal test current and 17 Ω dynamic impedance support tight regulation in low-current shunt regulator topologies without requiring active compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.5 V min / 10 V typ / 10.5 V max @ IZ = 20 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 500 mW @ TA = 25°C - sets maximum continuous power handling before thermal derating begins |
| Dynamic Impedance (ZZ) | 17 Ω @ IZ = 20 mA - determines regulation sensitivity to load current changes |
| Reverse Leakage (IR) | 3.0 μA max @ VR = 7.6 V - ensures minimal quiescent current in standby or undervoltage states |
| Temperature Coefficient (TC) | +0.075 %/°C - quantifies voltage drift per degree Celsius rise, enabling thermal error budgeting |
| Package | DO-35 glass case with cathode band - provides industry-standard through-hole mounting and visual polarity identification |
| Operating Junction Temp | -65°C to +200°C - supports operation in extreme ambient environments without parameter shift or failure |
Pinout & Package
DO-35 glass axial-leaded package: hermetically sealed, 0.533 mm diameter body, 4.56 mm length, cathode identified by color band. Leads are tinned copper-clad steel, suitable for wave or hand soldering at ≤230°C for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated circuit; forms return path for Zener current |
| Cathode | Zener breakdown terminal / regulated output node | Connected to higher-potential side; supplies stable voltage to load when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables use in cost-sensitive designs without post-manufacturing trimming while maintaining functional compliance |
| +0.075 %/°C temperature coefficient | Provides predictable, monotonic voltage increase with temperature-simplifies thermal compensation in reference circuits |
| 17 Ω dynamic impedance at 20 mA | Delivers <1% output variation for ±1 mA load current shifts, supporting stable biasing in op-amp and sensor interfaces |
| 3.0 μA max reverse leakage @ 7.6 V | Minimizes standby power loss in battery-powered systems and prevents false triggering in protection circuits |
| DO-35 hermetic glass construction | Ensures parameter stability over 20+ years in humid or chemically aggressive environments without encapsulation |
Applications
| Industrial Power Monitoring | Automotive Sensor Biasing |
|---|---|
|
Use Scenario: Monitoring 12 V vehicle battery voltage with microcontroller ADC input. IC Role / Device Role / Timing Role: Zener reference providing scaled, stable input to ADC voltage divider. Use Value: 10 V Zener clamps input to safe range while maintaining 0.5% full-scale accuracy over -40°C to +125°C ambient. |
Use Scenario: Supplying precise 5 V bias to analog pressure sensor in engine control unit. IC Role / Device Role / Timing Role: Shunt regulator establishing clean reference for sensor excitation. Use Value: Low 17 Ω ZZ ensures <2 mV ripple on bias rail despite ECU switching noise coupling. |
| Consumer AC-DC Adapter Feedback | Medical Diagnostic Equipment Reference |
|
Use Scenario: Secondary-side voltage sensing in isolated flyback converter for USB charger. IC Role / Device Role / Timing Role: Zener element in optocoupler feedback network regulating output voltage. Use Value: Tight 5% tolerance and stable TC enable ±3% output regulation across universal AC input range. |
Use Scenario: Precision voltage reference for ECG front-end amplifier offset calibration. IC Role / Device Role / Timing Role: Low-drift Zener source for DAC-based trim voltage generation. Use Value: Hermetic DO-35 package prevents parameter drift during sterilization cycles 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 |
|---|---|---|---|
| 1N4740A | 10 V nominal, 1 W power rating, 17 Ω ZZ, DO-41 package | Higher power dissipation enables use in higher-current shunt regulators; larger DO-41 footprint requires PCB redesign | Select when >500 mW regulation power is required and board space permits larger package |
| BZX55C10 | 10 V nominal, 500 mW, 20 Ω ZZ, DO-35, ±5% tolerance, TC = +0.07 %/°C | Near-identical electrical specs but manufactured by Vishay; same DO-35 footprint and marking convention | Drop-in alternative with identical thermal and electrical behavior-validated for cross-qualification in high-reliability programs |
Compared with 1N5240B_S00Z, 1N4740A offers double the power rating but requires layout change, while BZX55C10 matches all key parameters and mechanical form factor-making it the preferred direct replacement where second-source qualification is mandated.
Availability
1N5240B_S00Z is available at Aetrix Electronics and suitable for industrial power monitoring, automotive sensor biasing, consumer AC-DC adapter feedback, and medical diagnostic equipment reference applications requiring stable component supply and long-term parametric consistency.
Supply support for 1N5240B_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 is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensors, and logic solutions for automotive, industrial, cloud computing, and consumer markets.
The 1N52xxB series belongs to ON Semiconductor's legacy Zener diode product line, designed specifically for general-purpose voltage regulation and reference functions in cost-sensitive, high-volume applications where reliability and standardization are critical.
FAQ
What is the Zener voltage tolerance of the 1N5240B_S00Z?
The 1N5240B_S00Z has a Zener voltage tolerance of ±5%, specified as 9.5 V minimum, 10 V typical, and 10.5 V maximum at 20 mA test current. This tolerance band is guaranteed across the full operating temperature range and supports robust design margining without requiring post-production calibration.
Does the 1N5240B_S00Z have a positive or negative temperature coefficient?
The 1N5240B_S00Z exhibits a positive temperature coefficient of +0.075 %/°C, meaning its Zener voltage increases predictably with rising junction temperature. This behavior is confirmed in the Electrical Characteristics table and enables accurate thermal error modeling in precision reference circuits.
What is the maximum reverse leakage current for the 1N5240B_S00Z?
The 1N5240B_S00Z specifies a maximum reverse leakage current of 3.0 μA at 7.6 V (0.76 × VZ). This value is measured per the ON Semiconductor datasheet and ensures minimal standby power draw in battery-backed or low-power monitoring applications.
Is the 1N5240B_S00Z compatible with lead-free soldering processes?
Yes-the 1N5240B_S00Z DO-35 package supports lead-free reflow and wave soldering with peak temperatures up to +230°C for 10 seconds, as defined in the Absolute Maximum Ratings section. Its glass body and tinned leads meet JEDEC J-STD-020 requirements for MSL-1 handling.
What does the "_S00Z" suffix indicate in the 1N5240B_S00Z part number?
"_S00Z" is a Fairchild-originated marking suffix retained post-ON Semiconductor acquisition, indicating tape-and-reel packaging and RoHS-compliant finish. It does not alter electrical specifications-1N5240B_S00Z performs identically to 1N5240B in all rated conditions per the ON Semiconductor 1N5221B–1N5263B datasheet Rev. 3.
1N5240B_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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 17 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 8 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
1N5240B_S00Z FAQ
1.How can I place an order for 1N5240B_S00Z through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5240B_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 1N5240B_S00Z reliable?
The price and inventory of 1N5240B_S00Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5240B_S00Z is usually 5 days.
3.What payment methods are accepted for 1N5240B_S00Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5240B_S00Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5240B_S00Z?
1N5240B_S00Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5240B_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 1N5240B_S00Z?
For technical support, including 1N5240B_S00Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5240B_S00Z requirements.
6.How does Aetrix verify that 1N5240B_S00Z is sourced from the original manufacturer or authorized distributors?
All 1N5240B_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 1N5240B_S00Z meets industry standards.
7.What is the process for return or replacement of 1N5240B_S00Z?
All 1N5240B_S00Z units undergo pre-shipment inspection (PSI). If there is an issue with 1N5240B_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 1N5240B_S00Z part is unused and in its original packaging.
Return procedure for 1N5240B_S00Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5240B_S00Z Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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