My Inquiry
My Account
Microchip Technology 1N4133-1
- Part No.:
- 1N4133-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4133-1.pdf
- Description:
- DIODE ZENER 87V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:5,833
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4133-1 from Microsemi is a 500 mW, 87 V Zener diode in DO-35 glass package, qualified to JANS level per MIL-PRF-19500/435, with 1% voltage tolerance, 1000 Ω dynamic impedance at 250 mA, and max noise density of 1 µV/√Hz - used for precision voltage regulation in radiation-hardened aerospace power supplies.
For engineers reviewing the 1N4133-1 datasheet, 1N4133-1 pinout, 1N4133-1 application, or 1N4133-1 equivalent, this page delivers verified Zener voltage, thermal derating behavior, military qualification level, noise performance, and surface-mount alternatives for high-reliability analog reference design.
Technical Context
The 1N4133-1 operates as a reverse-biased voltage reference with metallurgically bonded junction, enabling stable regulation across -65 °C to +175 °C. Its 87 V nominal Zener voltage is specified at 250 mA test current (IZT), with dynamic impedance (ZZT) of 1000 Ω and temperature coefficient of +0.100 %/°C.
It exhibits ultra-low reverse leakage (IR ≤ 0.01 µA at VR = 69.6 V), minimal capacitance (~3.5 pF), and inherent radiation hardness per Microsemi MicroNote 050. Noise density is 1 µV/√Hz - among the lowest in the 1N4099–1N4135 family for high-stability references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 87 V ±1% at 250 mA - defines precise regulation point for high-voltage reference rails |
| Power Dissipation | 500 mW at 25 °C, linearly derated to zero at 175 °C - sets thermal design margin for PCB layout |
| Dynamic Impedance ZZT | 1000 Ω at 250 mA - determines output voltage stability under load variation |
| Noise Density ND | 1 µV/√Hz - enables low-noise analog sensing and metrology-grade references |
| Reverse Leakage IR | ≤0.01 µA at 69.6 V - ensures negligible current draw in standby or high-impedance bias networks |
| Temp Coefficient αVZ | +0.100 %/°C - quantifies drift over temperature for system-level accuracy budgeting |
| Junction Temp Range | -65 °C to +175 °C - supports operation in extended-environment avionics and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package; cathode indicated by band; operated with banded end positive for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to circuit ground or lower-potential rail when regulating reverse voltage |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 87 V output referenced to anode; marked with band on glass body |
Key Features
| Feature | Design Value |
|---|---|
| Metallurgical bond construction | Enables high-reliability operation and resistance to thermal cycling fatigue in space-grade assemblies |
| JANS-level qualification | Validated for Class S (space) applications per MIL-PRF-19500/435, including radiation hardness |
| Ultra-low noise density | 1 µV/√Hz at 87 V - critical for precision ADC reference buffers and low-drift op-amp circuits |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over decades in harsh environments |
| 1% Zener tolerance option | Reduces calibration overhead in production test for high-voltage power supply feedback loops |
Applications
| Aerospace Power Regulation | Radiation-Hardened Reference |
|---|---|
Use Scenario: Regulating auxiliary 87 V rail in satellite power distribution units exposed to total ionizing dose (TID) >100 krad. IC Role / Device Role / Timing Role: Primary Zener reference for isolated DC-DC converter feedback network. Use Value: Maintains ±1% regulation over -55 °C to +125 °C while surviving 100+ krad TID without parameter shift. | Use Scenario: Providing stable bias voltage for radiation-tolerant op-amps in nuclear instrumentation front-ends. IC Role / Device Role / Timing Role: Low-noise, high-voltage reference source for precision gain-setting networks. Use Value: 1 µV/√Hz noise floor prevents degradation of signal-to-noise ratio in sub-10 nV/√Hz measurement chains. |
| High-Voltage Test Equipment | Military Avionics Monitoring |
Use Scenario: Calibrating 100 V-range digital multimeters and insulation resistance testers. IC Role / Device Role / Timing Role: Traceable voltage standard in portable calibration modules. Use Value: 1% tolerance and JANS traceability support ISO/IEC 17025-compliant metrology workflows. | Use Scenario: Monitoring 28 V aircraft bus overvoltage protection thresholds via scaled-down Zener clamp. IC Role / Device Role / Timing Role: High-reliability voltage threshold detector in flight control interface cards. Use Value: -65 °C to +175 °C operating range and MIL-qualified screening ensure no failure during rapid cabin depressurization cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4133UR-1 | Same electrical specs; DO-213AA surface-mount package instead of DO-35 axial lead | Required for automated SMT assembly; eliminates through-hole reflow concerns but reduces thermal mass | Select when board space is constrained and reflow profile supports glass-body SMT handling |
| 1PMT4133 | Same 87 V, 1% spec; DO-216 tabbed SMT package with higher thermal resistance (RθJA ≈ 400 °C/W) | Suitable for low-power monitoring circuits where footprint and height are prioritized over power handling | Choose for compact designs needing <1.5 mm profile; verify derating at ambient >70 °C |
Compared with 1N4133-1, the 1N4133UR-1 offers identical regulation performance in a smaller SMT form factor ideal for high-density layouts, while the 1PMT4133 trades thermal capability for ultra-low profile - both require updated PCB land patterns and reflow validation.
Availability
1N4133-1 is available at Aetrix Electronics and suitable for aerospace power regulation, radiation-hardened reference design, and high-voltage test equipment requiring stable component supply with full MIL-PRF-19500 traceability.
Supply support for 1N4133-1 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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The 1N4133-1 belongs to Microsemi's legacy MIL-qualified Zener diode product line, engineered specifically for voltage reference stability under extreme temperature, radiation, and long-term reliability requirements.
FAQ
What is the Zener voltage tolerance for 1N4133-1?
The 1N4133-1 has a nominal Zener voltage of 87 V with a tolerance of ±1%, denoted by the "D" suffix in its full nomenclature per MIL-PRF-19500/435. This tight tolerance is confirmed in the Electrical Characteristics table on Page 3 of T4-LDS-0245-2 Rev. 1, where 1N4133-1 is explicitly listed with 1% tolerance and 250 mA test current.
Is 1N4133-1 qualified to JANS level?
Yes, the 1N4133-1 is qualified to JANS level per MIL-PRF-19500/435, as stated in the DESCRIPTION section on Page 1 of T4-LDS-0245-2 Rev. 1. JANS is the highest reliability grade for space applications, and the datasheet confirms qualification up to JANS for the entire 1N4099–1N4135 series, including 1N4133-1.
What is the maximum reverse leakage current for 1N4133-1?
The maximum reverse leakage current (IR) for 1N4133-1 is 0.01 µA at VR = 69.6 V, as specified in the Electrical Characteristics table on Page 3 of T4-LDS-0245-2 Rev. 1. This ultra-low leakage supports high-impedance bias networks and minimizes error in precision reference applications.
Does 1N4133-1 have radiation hardness certification?
Yes, the 1N4133-1 is inherently radiation hard per Microsemi MicroNote 050, as noted in the APPLICATIONS / BENEFITS section on Page 1 of T4-LDS-0245-2 Rev. 1. Its metallurgically bonded glass construction and JANS qualification confirm suitability for TID environments exceeding 100 krad in space systems.
What is the thermal resistance junction-to-ambient for 1N4133-1?
The thermal resistance junction-to-ambient (RθJA) for 1N4133-1 is 300 °C/W, measured on FR4 PCB with 4 mm² copper pads and 1 mm track width (25 mm length), per the MAXIMUM RATINGS table on Page 1 of T4-LDS-0245-2 Rev. 1. This value governs safe power derating above 25 °C ambient.
1N4133-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- 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 @ 66.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4133-1 FAQ
1.How can I place an order for 1N4133-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4133-1 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 1N4133-1 reliable?
The price and inventory of 1N4133-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4133-1 is usually 5 days.
3.What payment methods are accepted for 1N4133-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4133-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4133-1?
1N4133-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4133-1 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 1N4133-1?
For technical support, including 1N4133-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4133-1 requirements.
6.How does Aetrix verify that 1N4133-1 is sourced from the original manufacturer or authorized distributors?
All 1N4133-1 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 1N4133-1 meets industry standards.
7.What is the process for return or replacement of 1N4133-1?
All 1N4133-1 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4133-1, 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 1N4133-1 part is unused and in its original packaging.
Return procedure for 1N4133-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4133-1 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
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
