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Microchip Technology 1N5230B/TR
- Part No.:
- 1N5230B/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5230B/TR.pdf
- Description:
- DIODE ZENER 4.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,362
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Product details
Overview
1N5230B/TR from Microsemi is a 4.7 V, ±5% tolerance, 500 mW glass axial-lead Zener diode in DO-35 (DO-204AH) package, rated for 20 mA test current, 19 Ω dynamic impedance at IZT, and operating across –65°C to +175°C. It serves as a precision voltage reference or shunt regulator in low-power analog circuits, power supply feedback paths, and overvoltage protection.
For engineers reviewing the 1N5230B/TR datasheet, 1N5230B/TR pinout, 1N5230B/TR application, or 1N5230B/TR equivalent, key selection criteria include Zener voltage accuracy, thermal stability, low dynamic impedance at regulation current, axial-leaded mechanical mounting compatibility, and RoHS-compliant plating options with TR tape-and-reel packaging.
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable output voltage under varying load and temperature conditions. Its 4.7 V nominal Zener voltage exhibits a temperature coefficient of ±0.030 %/°C, enabling predictable drift behavior over industrial temperature ranges.
The 1N5230B/TR uses a hermetically sealed glass DO-35 package with tin-lead or RoHS-compliant matte-tin plating, cathode indicated by a band, and is rated for 1.5 V maximum forward voltage at 200 mA - confirming robust forward conduction capability for bidirectional protection or clamping roles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 4.7 V @ 20 mA - defines precise regulation point for feedback or reference circuits |
| Zener Tolerance | ±5% (B suffix) - ensures voltage accuracy within ±0.235 V at 25°C |
| Power Dissipation | 500 mW at 25°C - supports continuous regulation in compact, non-heatsinked designs |
| Zener Impedance | 19 Ω @ IZT - enables tight voltage regulation under dynamic load changes |
| Operating Temperature | –65°C to +175°C - suitable for aerospace, downhole, and high-reliability industrial environments |
| Thermal Resistance | 250 °C/W junction-to-lead - informs thermal design when leads serve as heat paths |
| Reverse Leakage | 50 μA @ 3.8 V - guarantees low standby current in battery-powered or ultra-low-power systems |
Pinout & Package
DO-35 (DO-204AH) glass axial-leaded package with cathode identified by a single black band; leads are tinned copper, solderable per MIL-STD-750 Method 2026, and mechanically robust for through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower-potential node; accepts reverse current during Zener operation |
| Cathode | Banded end | Connected to regulated output node; must be held at higher potential than anode for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered 1N52xxB series | Ensures standardized electrical and mechanical interchangeability across qualified suppliers |
| RoHS-compliant option (e3 suffix) | Meets environmental compliance without sacrificing glass-package reliability or thermal performance |
| Inherent radiation hardness | Validated per MicroNote 050 - supports use in space-qualified or high-radiation terrestrial systems |
| Low capacitance (typ. <2 pF) | Minimizes signal distortion in RF biasing, timing, and high-frequency clamp applications |
| Nonsensitive to ESD | Rated per MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling and assembly |
Applications
| Voltage Reference for Op-Amp Circuits | Overvoltage Clamp in Sensor Interfaces |
|---|---|
Use Scenario: Providing stable 4.7 V bias to instrumentation amplifier input stages in industrial transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise common-mode level for differential signal conditioning. Use Value: Maintains reference accuracy within ±0.235 V over –40°C to +85°C ambient, reducing gain error drift in 16-bit measurement systems. | Use Scenario: Protecting 5 V ADC inputs from transient surges induced by nearby motor switching. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting input voltage to ≤4.7 V + diode forward drop during fault events. Use Value: Limits peak clamped voltage to <6.2 V with <100 ns response, preventing ADC latch-up while surviving >1000 surge cycles. |
| Feedback Regulator in Linear Power Supplies | ESD-Safe Bias Network in RS-232 Transceivers |
Use Scenario: Setting output voltage in 12 V linear regulator using TL431-compatible feedback divider. IC Role / Device Role / Timing Role: Precision Zener element in resistive divider network controlling pass transistor base drive. Use Value: Enables ±1% output regulation stability over line/load/temperature with no active compensation required. | Use Scenario: Establishing bias points on RS-232 driver/receiver pins exposed to connector-level ESD. IC Role / Device Role / Timing Role: Low-capacitance, ESD-immune voltage clamp protecting transceiver I/O against ±8 kV contact discharge. Use Value: Provides <2 pF parasitic capacitance and withstands >1000 ESD events per MIL-STD-750 Method 1020 without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4732A (ON Semiconductor) | 4.7 V, ±5%, 1 W rating, DO-41 package - higher power but larger footprint and 22 Ω Zz | Preferred where board space allows and >500 mW surge margin is needed | Select 1N4732A only if thermal derating headroom or legacy DO-41 layout compatibility is required |
| BZX55C4V7 (Vishay) | 4.7 V, ±5%, 500 mW, DO-35 package - identical form factor but 20 Ω Zz and –65°C to +175°C rating | Drop-in replacement with near-identical electrical and thermal specs; RoHS-only variant | Choose BZX55C4V7 when sourcing requires dual-sourcing assurance without layout or thermal redesign |
Compared with 1N5230B/TR, the 1N4732A offers higher power but requires PCB rework due to DO-41 size, while BZX55C4V7 delivers identical DO-35 fit, form, and function with verified traceability for automotive-grade procurement.
Availability
1N5230B/TR is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection circuits, and linear regulator feedback networks requiring stable component supply across aerospace, industrial control, and medical instrumentation programs.
Supply support for 1N5230B/TR 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
Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability, radiation-hardened, and high-voltage analog components for defense, aerospace, and industrial markets.
The 1N52xxB series was designed specifically for mission-critical voltage regulation where long-term stability, wide temperature operation, and hermetic glass-package integrity are mandatory - not general-purpose use.
FAQ
What is the Zener voltage tolerance of the 1N5230B/TR?
The 1N5230B/TR has a nominal Zener voltage of 4.7 V with a guaranteed tolerance of ±5%, as indicated by the "B" suffix per JEDEC standard. This means the actual measured Zener voltage at 20 mA test current falls between 4.465 V and 4.935 V at 25°C, and remains within this band across its full operating temperature range when properly derated.
Does the 1N5230B/TR support RoHS compliance?
Yes - the 1N5230B/TR is available in RoHS-compliant configuration when ordered with the "e3" suffix (e.g., 1N5230B-e3/TR), featuring annealed matte-tin plating per MIL-STD-750 Method 2026. The base 1N5230B/TR part uses traditional tin-lead plating unless otherwise specified.
What is the maximum reverse leakage current for the 1N5230B/TR?
The 1N5230B/TR specifies a maximum reverse leakage current (IR) of 50 μA at VR = 3.8 V, measured after 20 seconds of stabilization at 25°C. This low leakage ensures minimal quiescent current draw in battery-backed or energy-harvesting applications where standby power budget is critical.
Can the 1N5230B/TR be used in high-temperature environments?
Yes - the 1N5230B/TR is rated for continuous operation from –65°C to +175°C, with thermal resistance of 250°C/W junction-to-lead. Its glass DO-35 package and internal construction enable reliable performance in downhole tools, engine control units, and avionics systems where extended thermal cycling and long-term stability are required.
Is tape-and-reel packaging available for the 1N5230B/TR?
Yes - the "TR" suffix in 1N5230B/TR explicitly denotes EIA-296 standard tape-and-reel packaging, optimized for automated SMT placement equipment. Each reel contains standard quantities per EIA-296, with moisture-sensitive level (MSL) rating consistent with glass-body passive devices - no dry pack or baking required.
1N5230B/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 19 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N5230B/TR FAQ
1.How can I place an order for 1N5230B/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5230B/TR 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 1N5230B/TR reliable?
The price and inventory of 1N5230B/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5230B/TR is usually 5 days.
3.What payment methods are accepted for 1N5230B/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5230B/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5230B/TR?
1N5230B/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5230B/TR 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 1N5230B/TR?
For technical support, including 1N5230B/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5230B/TR requirements.
6.How does Aetrix verify that 1N5230B/TR is sourced from the original manufacturer or authorized distributors?
All 1N5230B/TR 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 1N5230B/TR meets industry standards.
7.What is the process for return or replacement of 1N5230B/TR?
All 1N5230B/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5230B/TR, 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 1N5230B/TR part is unused and in its original packaging.
Return procedure for 1N5230B/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5230B/TR Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
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