My Inquiry
My Account
Microchip Technology 1N4115/TR
- Part No.:
- 1N4115/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AA, DO-7, Axial
- Datasheet:
-
1N4115/TR.pdf
- Description:
- DIODE ZENER 22V 500MW DO7
- Quantity:
- Payment:
- Shipping:
Inventory:4,820
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4115/TR from Microsemi is a 500 mW, 22 V axial-leaded Zener diode in DO-35 (DO-204AH) glass package, qualified to JANTXV level per MIL-PRF-19500/435, with 1% voltage tolerance, 150 Ω dynamic impedance at 250 mA, and 0.01 µA reverse leakage at 16.8 V. It delivers stable voltage regulation in high-reliability power supply reference circuits.
For engineers reviewing the 1N4115/TR datasheet, 1N4115/TR pinout, 1N4115/TR application, or 1N4115/TR equivalent, this part supports precision analog references, military-grade voltage clamping, and temperature-stable biasing where low noise density (1 µV/√Hz), hermetic sealing, and radiation hardness are required.
Technical Context
This device operates as a reverse-biased voltage regulator with metallurgically bonded junction for enhanced reliability. Its Zener voltage of 22 V is specified at 250 mA test current (IZT), with dynamic impedance measured at 150 Ω using 10% rms ac modulation superimposed on IZT.
It exhibits +0.090 %/°C temperature coefficient and minimal capacitance (typical <2 pF at 22 V), enabling stable performance across -65 °C to +175 °C operating range while maintaining low noise density and ESD immunity per MIL-STD-750 method 1020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.0 V at 250 mA - defines precise regulation point for reference design |
| Power Dissipation | 500 mW at 25 °C - sets maximum continuous thermal load on PCB layout |
| Dynamic Impedance (ZZT) | 150 Ω at 250 mA - determines output voltage stability under load variation |
| Reverse Leakage (IR) | 0.01 µA at 16.8 V - ensures minimal error current in high-impedance bias networks |
| Temp Coefficient (αVZ) | +0.090 %/°C - quantifies drift magnitude over industrial/military temperature range |
| Noise Density (ND) | 1 µV/√Hz - enables low-noise analog references without added filtering |
| Junction Temp Range | -65 °C to +175 °C - supports operation in aerospace, downhole, and defense environments |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by band; banded end is positive during Zener regulation. Hermetically sealed, tin-lead or RoHS-compliant matte-tin plating, ~0.2 g weight, 1.0–1.5 inch lead length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail in shunt regulator topology |
| Cathode | Zener regulation output | Banded end supplies regulated 22 V when reverse-biased; must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JANTXV-level screening ensures tested reliability for flight-critical and defense systems |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| 1% Zener voltage tolerance | Reduces calibration overhead in precision instrumentation and ADC reference designs |
| Radiation hardness | Inherent TID tolerance per MicroNote 050 supports space-qualified power conditioning |
| Low noise density | 1 µV/√Hz enables direct use in low-level signal chain references without post-regulation filtering |
Applications
| Avionics Power Reference | Military Radio Biasing |
|---|---|
Use Scenario: Providing stable 22 V reference for analog-to-digital converter front-ends in airborne navigation systems. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision DC reference rail independent of input fluctuations. Use Value: Maintains ±0.2% regulation accuracy over -55 °C to +125 °C, ensuring consistent ADC full-scale definition. | Use Scenario: Setting bias points for RF power amplifier stages in tactical HF/VHF transceivers. IC Role / Device Role / Timing Role: Zener clamp defining stable quiescent operating point for transistor amplifiers under wide temperature swings. Use Value: JANTXV qualification and +0.090 %/°C tempco ensure predictable gain stability across operational envelope. |
| Satellite Payload Regulation | Downhole Sensor Conditioning |
Use Scenario: Regulating auxiliary rails for radiation-tolerant FPGAs and memory in LEO satellite payloads. IC Role / Device Role / Timing Role: Primary voltage reference in fault-tolerant power management subsystems. Use Value: Inherent radiation hardness and hermetic DO-35 packaging prevent parametric shift after 100 krad(Si) exposure. | Use Scenario: Supplying calibrated excitation voltage to strain-gauge bridges in oil/gas well logging tools. IC Role / Device Role / Timing Role: Precision shunt regulator delivering stable 22 V to high-impedance sensor interfaces. Use Value: 0.01 µA leakage at 16.8 V minimizes measurement error in microamp-level bridge currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4115US | Same electrical specs but in surface-mount DO-213AA package; no axial leads | Requires SMT reflow process and eliminates through-hole mounting | Select when board space constraints or automated assembly mandate surface-mount packaging |
| 1N4115-1 | Identical DO-35 package and electrical parameters; differs only in RoHS compliance status (non-RoHS vs. RoHS-compliant TR suffix) | No functional difference; compliance-driven selection for EU/defense procurement | Choose 1N4115/TR for RoHS-compliant commercial-grade production; select 1N4115-1 for legacy non-RoHS builds |
Compared with 1N4115-1 and 1N4115US, the 1N4115/TR provides identical Zener regulation performance and JANTXV qualification but adds RoHS compliance and tape-and-reel packaging-enabling automated placement while meeting environmental directives without sacrificing reliability.
Availability
1N4115/TR is available at Aetrix Electronics and suitable for avionics power reference, military radio biasing, and satellite payload regulation requiring stable component supply, long-term obsolescence management, and traceable mil-spec sourcing.
Supply support for 1N4115/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, radiation-hardened, and aerospace-grade components.
The 1N4115/TR belongs to Microsemi's legacy MIL-PRF-19500/435-qualified Zener diode family, designed specifically for voltage regulation in mission-critical defense, space, and industrial control systems demanding proven field reliability.
FAQ
What is the Zener voltage tolerance for 1N4115/TR?
The 1N4115/TR has a nominal Zener voltage of 22.0 V with a 1% tolerance, meaning its actual regulation voltage falls within 21.78 V to 22.22 V at 250 mA test current and 25 °C ambient. This tight tolerance is achieved via post-process screening and is documented in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet.
Is 1N4115/TR qualified to JANTXV level?
Yes, the 1N4115/TR is qualified to JANTXV level per MIL-PRF-19500/435, as confirmed in the "Qualified Levels" section on page 1 of the datasheet. This includes extended temperature testing, burn-in, and lot acceptance testing required for high-reliability applications such as aerospace and defense electronics.
What is the maximum reverse leakage current for 1N4115/TR?
The maximum reverse leakage current (IR) for 1N4115/TR is 0.01 µA at VR = 16.8 V, as specified in the Electrical Characteristics table. This ultra-low leakage supports high-impedance circuit nodes and minimizes error in precision analog reference and sensor biasing applications.
Does 1N4115/TR have radiation hardness?
Yes, the 1N4115/TR exhibits inherent radiation hardness as described in Microsemi MicroNote 050. Its metallurgically bonded glass construction and process design provide tolerance to total ionizing dose (TID) environments typical in satellite and nuclear instrumentation applications.
What package type does 1N4115/TR use?
The 1N4115/TR uses the DO-35 (DO-204AH) axial-leaded glass package, with hermetically sealed construction, tin-lead or RoHS-compliant matte-tin plating, and cathode identified by a band. Package dimensions and mechanical details are provided on page 5 of the T4-LDS-0245-2 datasheet.
1N4115/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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 150 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 16.72 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 (DO-204AA)
1N4115/TR FAQ
1.How can I place an order for 1N4115/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4115/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 1N4115/TR reliable?
The price and inventory of 1N4115/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4115/TR is usually 5 days.
3.What payment methods are accepted for 1N4115/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4115/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4115/TR?
1N4115/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4115/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 1N4115/TR?
For technical support, including 1N4115/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4115/TR requirements.
6.How does Aetrix verify that 1N4115/TR is sourced from the original manufacturer or authorized distributors?
All 1N4115/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 1N4115/TR meets industry standards.
7.What is the process for return or replacement of 1N4115/TR?
All 1N4115/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4115/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 1N4115/TR part is unused and in its original packaging.
Return procedure for 1N4115/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4115/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
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…
