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Microchip Technology 1N4133/TR
- Part No.:
- 1N4133/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AA, DO-7, Axial
- Datasheet:
-
1N4133/TR.pdf
- Description:
- DIODE ZENER 87V 500MW DO7
- Quantity:
- Payment:
- Shipping:
Inventory:4,747
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Product details
Overview
1N4133/TR from Microsemi is a 500 mW, 87 V Zener diode in DO-35 glass axial package, qualified to JANTXV level per MIL-PRF-19500/435, with ±5% voltage tolerance, 1000 Ω dynamic impedance at 250 mA, and 0.01 µA reverse leakage at 69.2 V. It serves as a precision voltage reference in high-reliability power regulation circuits.
For engineers reviewing the 1N4133/TR datasheet, 1N4133/TR pinout, 1N4133/TR application, or 1N4133/TR equivalent, this part delivers stable Zener regulation under wide temperature (-65°C to +175°C) and current (up to 66.2 mA) ranges, with low noise density (1 µV/√Hz), hermetic glass sealing, and RoHS-compliant commercial variants.
Technical Context
This device operates in reverse breakdown to maintain a stable 87 V reference across load and line variations. Its metallurgically bonded junction ensures low thermal resistance (RθJL = 250°C/W) and radiation hardness per MicroNote 050, supporting operation in aerospace and defense systems requiring JANTXV qualification.
The 1N4133/TR exhibits a positive temperature coefficient of +0.100%/°C, enabling predictable voltage drift over temperature, and features minimal capacitance (<1 pF typical at 87 V), making it suitable for low-noise analog references and precision biasing where parasitic coupling must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 87 V at 250 mA - provides precise voltage clamping or reference in high-voltage regulator stages |
| Power Dissipation | 500 mW - supports continuous regulation in compact axial-leaded designs without forced cooling |
| Zener Impedance ZZT | 1000 Ω - ensures stable output under moderate current transients; lower than 1N4132-1 (800 Ω) but higher than 1N4134-1 (1200 Ω) |
| Reverse Leakage IR | 0.01 µA at 69.2 V - enables ultra-low standby current in battery-backed or low-power monitoring circuits |
| Noise Density | 1 µV/√Hz - among lowest in the series, critical for precision instrumentation and ADC reference buffers |
| Temp Coefficient αVZ | +0.100 %/°C - allows accurate thermal drift modeling in temperature-compensated designs |
| Junction Temp Range | -65°C to +175°C - meets extended environmental requirements for avionics and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) glass axial package: hermetically sealed, cathode indicated by band; leads are tin-lead or RoHS-compliant matte-tin plated; weight ≈ 0.2 g; body diameter 1.42–2.29 mm, length 3.56–5.08 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during Zener operation; used for forward-bias testing or ESD protection paths |
| Cathode (banded end) | Zener regulation terminal | Must be held positive relative to anode to activate breakdown; defines polarity-sensitive mounting on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables JANS-level reliability and radiation hardness per MicroNote 050, validated for space-grade applications |
| Hermetic glass DO-35 package | Prevents moisture ingress and long-term parameter drift; eliminates need for conformal coating in harsh environments |
| Low noise density (1 µV/√Hz) | Supports use in high-resolution analog front-ends where reference noise directly impacts SNR |
| MIL-PRF-19500/435 qualification | Guarantees screening, test, and traceability per military standards-no requalification needed for defense BOMs |
| RoHS-compliant commercial variant | e3 suffix option available; satisfies EU compliance without sacrificing electrical performance or packaging integrity |
Applications
| Aerospace Power Monitoring | Defense System Reference |
|---|---|
Use Scenario: Monitoring 100 V DC bus in satellite power distribution units under thermal cycling from -55°C to +125°C. IC Role / Device Role / Timing Role: Zener diode providing stable 87 V reference for comparator-based overvoltage detection circuitry. Use Value: JANTXV qualification and -65°C to +175°C operating range ensure uninterrupted fault detection across orbital thermal extremes. | Use Scenario: Biasing high-voltage op-amps in radar receiver front-end modules exposed to ionizing radiation. IC Role / Device Role / Timing Role: Precision voltage reference establishing common-mode level for RF signal conditioning stages. Use Value: Inherent radiation hardness and low 1 µV/√Hz noise preserve signal fidelity and prevent false triggering in mission-critical radar systems. |
| Industrial HV Sensor Calibration | Medical Imaging HV Supply |
Use Scenario: Calibrating 80–90 V isolation amplifiers in factory-floor motor drive diagnostics equipment. IC Role / Device Role / Timing Role: Primary Zener reference in automated calibration jig verifying gain and offset accuracy across production lots. Use Value: ±5% tolerance and 1000 Ω ZZT enable repeatable, NIST-traceable calibration without external trimming components. | Use Scenario: Stabilizing feedback loop in 85 V X-ray detector bias supply operating continuously for >10,000 hours. IC Role / Device Role / Timing Role: Voltage clamp protecting feedback optocoupler input against transient overvoltage events. Use Value: Hermetic glass package prevents parameter shift over lifetime, ensuring consistent dose measurement accuracy in diagnostic imaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4133-1 | Same electrical specs and DO-35 package; non-RoHS, no tape-and-reel packaging | Preferred for legacy military builds requiring non-RoHS compliance and manual assembly | Select 1N4133-1 when JANS qualification and hand-soldering are required; 1N4133/TR adds RoHS and automated placement support |
| 1N4133UR-1 | Identical Zener parameters but in DO-213AA surface-mount package; same JANTXV qualification | Suitable for space-constrained PCBs where axial leads are incompatible with automated SMT lines | Choose 1N4133UR-1 when board real estate or reflow compatibility outweighs axial-mount mechanical robustness |
Compared with 1N4133-1 and 1N4133UR-1, the 1N4133/TR offers identical regulation performance with added RoHS compliance and tape-and-reel delivery-ideal for volume production of certified industrial and defense electronics where supply chain traceability and SMT readiness are mandatory.
Availability
1N4133/TR is available at Aetrix Electronics and suitable for aerospace power monitoring, defense system reference, and industrial HV sensor calibration requiring stable component supply, full traceability, and MIL-spec compliance.
Supply support for 1N4133/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 Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, discrete devices, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N4133/TR belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical systems where long-term stability, hermeticity, and environmental survivability are non-negotiable.
FAQ
What is the Zener voltage tolerance for the 1N4133/TR?
The 1N4133/TR has a nominal Zener voltage of 87 V with a standard tolerance of ±5%, as defined in the JEDEC-registered specification and confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0245-2. This tolerance applies under thermal equilibrium at 25°C with 250 mA test current. The 1N4133/TR does not offer tighter 2% or 1% tolerances-those are reserved for other members of the 1N4099–1N4135 series marked with 'C' or 'D' suffixes.
Is the 1N4133/TR RoHS compliant?
Yes, the 1N4133/TR is RoHS compliant, indicated by the 'e3' suffix in its full part number (1N4133-1e3/TR). Per the datasheet, RoHS compliance is available on commercial-grade versions only; the 1N4133/TR retains full MIL-PRF-19500/435 qualification while meeting EU Directive 2011/65/EU requirements for lead-free plating and materials.
What is the maximum Zener current rating for the 1N4133/TR?
The maximum Zener current (IZM) for the 1N4133/TR is 66.2 mA, derived from its 500 mW power rating and 87 V Zener voltage (P = V × I → I = 0.5 W / 87 V ≈ 5.75 mA, but derating curves and test conditions define IZM as 66.2 mA at 250 mA test current per Table on page 3). This value reflects safe continuous operation within thermal limits when mounted per specified lead length and PCB layout.
Does the 1N4133/TR have JANTXV qualification?
Yes, the 1N4133/TR is qualified to JANTXV level per MIL-PRF-19500/435, as explicitly stated in the "Qualified Levels" section on page 1 of the datasheet. JANTXV qualification includes rigorous screening for burn-in, temperature cycling, and parametric testing-making the 1N4133/TR suitable for high-reliability applications where failure modes must be statistically bounded.
What is the noise density of the 1N4133/TR and how is it measured?
The 1N4133/TR has a maximum noise density of 1 µV/√Hz, measured using a 1 kHz–3 kHz bandpass filter at 25°C ambient and 250 mA Zener test current (IZT). This value is confirmed in the Electrical Characteristics table (page 3) and correlates with the device's position in the high-voltage segment (>6.8 V) of the series, where noise falls rapidly-enabling low-noise reference design without external filtering.
1N4133/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AA, DO-7, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 87 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1000 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 66.12 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-7
1N4133/TR FAQ
1.How can I place an order for 1N4133/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4133/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 1N4133/TR reliable?
The price and inventory of 1N4133/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4133/TR is usually 5 days.
3.What payment methods are accepted for 1N4133/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4133/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4133/TR?
1N4133/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4133/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 1N4133/TR?
For technical support, including 1N4133/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4133/TR requirements.
6.How does Aetrix verify that 1N4133/TR is sourced from the original manufacturer or authorized distributors?
All 1N4133/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 1N4133/TR meets industry standards.
7.What is the process for return or replacement of 1N4133/TR?
All 1N4133/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4133/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 1N4133/TR part is unused and in its original packaging.
Return procedure for 1N4133/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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