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Microchip Technology 1N5264B/TR
- Part No.:
- 1N5264B/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5264B/TR.pdf
- Description:
- DIODE ZENER 60V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:8,921
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Product details
Overview
1N5264B/TR from Microsemi is a 60 V, ±5% tolerance, 500 mW glass axial-lead Zener diode in DO-35 (DO-204AH) package, rated for 2.1 mA test current and 1400 Ω dynamic impedance at 0.25 mA, operating from –65°C to +175°C. It provides stable voltage regulation in low-power reference and protection circuits.
For engineers reviewing the 1N5264B/TR datasheet, 1N5264B/TR pinout, 1N5264B/TR application, or 1N5264B/TR equivalent, this page delivers verified electrical specs, thermal derating behavior, Zener temperature coefficient (+0.097 %/°C), RoHS-compliant plating options, and tape-and-reel packaging details per EIA-296.
Technical Context
This discrete Zener diode operates in reverse breakdown mode with cathode band marking polarity. Its regulation performance is defined at 2.1 mA test current (IZT), with dynamic impedance measured at both IZT and 0.25 mA (IZK) to ensure sharp knee characteristics and unit stability.
The device exhibits a positive temperature coefficient of +0.097 %/°C over 25°C–125°C, confirming predictable voltage drift under thermal stress. Thermal resistance is 250 °C/W junction-to-lead (3/8″ lead length) and 310 °C/W junction-to-ambient on FR4 with specified copper layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 60 V ±5% - precise regulation point at 2.1 mA, suitable for mid-range voltage references |
| Power Dissipation | 500 mW at 25°C - requires thermal derating above 50°C per Figure 1 curve |
| Zener Impedance | 1400 Ω at IZK = 0.25 mA - indicates moderate dynamic resistance for low-current biasing |
| Reverse Current | 0.1 μA max @ VR = 46 V - ensures minimal leakage in high-impedance sensing nodes |
| Temperature Coefficient | +0.097 %/°C - predictable positive drift enables compensation in temp-stable designs |
| Operating Temperature | –65°C to +175°C - qualified for aerospace, downhole, and extended industrial environments |
| Forward Voltage | 1.5 V max @ 200 mA - supports use as clamp or rectifier in dual-role circuits |
Pinout & Package
Hermetically sealed DO-35 (DO-204AH) glass axial-leaded package with tin-lead or RoHS-compliant matte-tin plating. Cathode identified by single black band; diode operated with banded end positive relative to unbanded end during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to circuit common; defines 0 V reference for regulated output |
| Cathode (banded end) | Zener regulation terminal | Applied with reverse bias voltage; maintains stable 60 V drop across load |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered DO-35 construction | Industry-standard mechanical and thermal interface for axial-leaded board mounting |
| ±5% voltage tolerance (B suffix) | Guaranteed VZ limits without need for post-manufacture sorting |
| RoHS-compliant option (e3 suffix) | Meets environmental compliance without sacrificing glass-body reliability |
| Radiation-hardened per MicroNote 050 | Inherent tolerance to total ionizing dose (TID), validated for space-qualified systems |
| ESD-insensitive (MIL-STD-750 Method 1020) | No handling precautions required; robust against assembly-line static discharge |
Applications
| Low-Power Voltage Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Precision analog front-end in battery-powered sensor node requiring stable 60 V rail for signal conditioning. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage reference for op-amp biasing and ADC reference scaling. Use Value: Delivers 60 V ±5% regulation at microamp-level quiescent current, minimizing power draw while maintaining accuracy over –40°C to +85°C. | Use Scenario: Protection circuit for 48 V telecom power supply input stage exposed to lightning-induced transients. IC Role / Device Role / Timing Role: Shunt clamping element diverting surge energy above 60 V to ground before downstream ICs are damaged. Use Value: Withstands 500 mW peak dissipation and operates reliably up to +175°C ambient, enabling compact placement near connectors. |
| Temperature-Stable Bias Generator | Aerospace Power Monitoring |
Use Scenario: Bias network for RF amplifier stage where gain stability depends on consistent collector voltage. IC Role / Device Role / Timing Role: Zener-based current source providing temperature-compensated base current via matched transistor pair. Use Value: +0.097 %/°C αVZ allows predictable tracking with silicon BJTs, reducing gain drift across operational temperature range. | Use Scenario: Voltage monitoring in satellite power distribution unit where radiation tolerance and long-term parametric stability are mandatory. IC Role / Device Role / Timing Role: Primary regulation element in redundant 60 V bus supervisor circuit with MIL-PRF-19500 screening option available. Use Value: Inherently radiation-hardened per MicroNote 050 and qualified to JANTXV level with "MV" prefix, supporting mission-critical uptime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5264B | Same electrical specs but bulk (non-tape-and-reel) packaging; no TR suffix | Not optimized for automated SMT placement; requires manual or bulk-feed assembly | Select 1N5264B/TR when using pick-and-place equipment compliant with EIA-296 tape standards |
| MMBZ5264B | SOT-23 surface-mount package; 200 mW rating; same 60 V ±5% and +0.097 %/°C αVZ | Limited power handling and thermal mass; unsuitable for >150 mW continuous dissipation | Choose MMBZ5264B only for space-constrained PCBs where 500 mW operation is not required |
Compared with 1N5264B/TR, the 1N5264B lacks tape-and-reel support for automated manufacturing, while MMBZ5264B trades 500 mW capability and axial-lead thermal performance for miniaturization-making 1N5264B/TR optimal for high-reliability through-hole regulation where power and thermal margin matter.
Availability
1N5264B/TR is available at Aetrix Electronics and suitable for low-power voltage reference, overvoltage clamp, and aerospace power monitoring applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1N5264B/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 analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N52xxB series belongs to Microsemi's legacy DO-35 Zener diode product line, engineered for stable voltage regulation in harsh-environment applications where wide temperature range, hermetic sealing, and JEDEC registration are critical design requirements.
FAQ
What is the Zener voltage tolerance for 1N5264B/TR?
The 1N5264B/TR has a nominal Zener voltage of 60 V with a guaranteed tolerance of ±5%, as indicated by the "B" suffix per JEDEC standard. This tolerance applies across the full operating temperature range of –65°C to +175°C and is verified at 2.1 mA test current (IZT). The tolerance is tighter than the base 1N5264 (no suffix), which carries ±20% limits only on VZ, IR, and VF.
Does 1N5264B/TR support automated assembly?
Yes, the "TR" suffix in 1N5264B/TR denotes EIA-296 standard tape-and-reel packaging, making it compatible with automated pick-and-place equipment. The DO-35 axial-leaded form factor is supported by standard feeders designed for radial/axial components, and the 0.2 g unit weight ensures reliable feeding without jamming.
What is the maximum power dissipation for 1N5264B/TR at 100°C ambient?
Per the power derating curve (Figure 1), 1N5264B/TR dissipates 500 mW at 25°C, with linear derating beginning at 50°C. At 100°C ambient, the allowable power drops to approximately 250 mW. This assumes 3/8″ (10 mm) lead length from body; on FR4 board with specified copper pads, derating starts at 25°C with 310 °C/W thermal resistance.
Is 1N5264B/TR RoHS compliant?
Yes, 1N5264B/TR is available in RoHS-compliant configuration when ordered with the "e3" suffix (e.g., 1N5264B-e3/TR). The device uses annealed matte-tin plating per MIL-STD-750 Method 2026 and meets lead-free soldering requirements with 260°C/10 s maximum solder temperature rating.
How does the temperature coefficient affect 1N5264B/TR in precision circuits?
The 1N5264B/TR has a temperature coefficient of +0.097 %/°C, meaning its Zener voltage increases by ~58 mV per 10°C rise from 25°C. In precision circuits, this drift must be compensated-e.g., by pairing with a negative-tempco component or using it in a temperature-stabilized bias network where predictable drift enables calibration.
1N5264B/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):
- 60 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 170 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 46 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)
1N5264B/TR FAQ
1.How can I place an order for 1N5264B/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5264B/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 1N5264B/TR reliable?
The price and inventory of 1N5264B/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5264B/TR is usually 5 days.
3.What payment methods are accepted for 1N5264B/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5264B/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5264B/TR?
1N5264B/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5264B/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 1N5264B/TR?
For technical support, including 1N5264B/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5264B/TR requirements.
6.How does Aetrix verify that 1N5264B/TR is sourced from the original manufacturer or authorized distributors?
All 1N5264B/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 1N5264B/TR meets industry standards.
7.What is the process for return or replacement of 1N5264B/TR?
All 1N5264B/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5264B/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 1N5264B/TR part is unused and in its original packaging.
Return procedure for 1N5264B/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5264B/TR Tags
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MMBZ5240B-7-F
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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