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Microchip Technology 1N4110UR/TR
- Part No.:
- 1N4110UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4110UR/TR.pdf
- Description:
- DIODE ZENER 16V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,779
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Product details
Overview
1N4110UR/TR from Microsemi is a glass-encapsulated, surface-mount Zener diode in DO-213AA (SOD-80/MELF) package, rated for 0.5 W steady-state power dissipation, with nominal Zener voltage of 16 V at 250 mA test current, ±5% tolerance, and 100 Ω maximum Zener impedance at IZT. It operates across –65 °C to +175 °C and serves as a precision voltage reference or overvoltage clamp in DC power rails.
For engineers reviewing the 1N4110UR/TR datasheet, 1N4110UR/TR pinout, 1N4110UR/TR application, or 1N4110UR/TR equivalent, key selection criteria include its 16 V regulation point, low 0.070 %/°C temperature coefficient, hermetic glass MELF construction, RoHS-compliant e3 finish, and tape-and-reel packaging (TR suffix) for automated assembly.
Technical Context
This device functions as a two-terminal, reverse-biased silicon Zener regulator with metallurgical junction design optimized for stable voltage reference under varying load and temperature conditions. Its DO-213AA package provides hermetic sealing and minimal parasitic capacitance (typ. 24 pF at 16 V), supporting noise-sensitive analog and timing circuits.
The 1N4110UR/TR exhibits a positive temperature coefficient of +0.070 %/°C - consistent with Zener voltages above ~5 V - enabling predictable drift compensation in temperature-stable references. It is rated for 40 mA maximum Zener current (IZM) and maintains regulation down to 0.05 μA reverse leakage at 12.15 V (VR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 16 V at IZT = 250 mA - defines precise regulation point for mid-range DC rail stabilization |
| Zener Impedance ZZT | 100 Ω max at 250 mA - ensures minimal output voltage shift under dynamic load changes |
| Temp. Coefficient αVZ | +0.070 %/°C - enables predictable, linear drift for compensated reference designs |
| Max Reverse Leakage IR | 0.05 μA at VR = 12.15 V - guarantees low quiescent current in standby or battery-backed circuits |
| Power Dissipation PD | 0.5 W at TEC < 100 °C - supports continuous operation in compact, thermally constrained layouts |
| Noise Density ND | 1 μV/√Hz typical at IZT - suitable for low-noise analog references and sensor excitation |
| Package | DO-213AA (SOD-80/MELF) - hermetically sealed glass body with tin-lead or matte-tin end caps |
Pinout & Package
DO-213AA (SOD-80/MELF) is a cylindrical, surface-mount glass package with axial symmetry and cathode band marking. No discrete pins - terminals are metallized end caps; polarity is indicated by a single black band denoting the cathode (anode is unmarked end).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener anode connection in reverse-bias configuration | Must be held at higher potential than anode to enable Zener conduction and voltage regulation |
| Anode (unmarked end) | Zener cathode connection in reverse-bias configuration | Reference ground or lower-potential node; forms regulated output node when cathode is biased |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables operation from –65 °C to +175 °C with zero moisture ingress risk in harsh environments |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for external ESD protection during handling and board assembly |
| Low 24 pF typical capacitance at 16 V | Minimizes high-frequency loading on oscillator or RF bias networks |
| Inherently radiation-hardened | Validated per Microsemi MicroNote 050 - suitable for space-qualified and high-reliability systems |
| Tape-and-reel packaging (TR) | Enables direct placement via pick-and-place machines; 2000 units per 7-inch reel |
Applications
| Industrial Power Monitoring | Automotive Body Control Module |
|---|---|
Use Scenario: Monitoring 12–16 V battery-fed microcontroller supply rails for brown-out detection. IC Role / Device Role / Timing Role: Zener reference for comparator input threshold set at 12.15 V (VR), triggering reset when voltage drops below regulation knee. Use Value: Stable 16 V reference with +0.070 %/°C TC ensures consistent trip point across –40 °C to +125 °C ambient. |
Use Scenario: Clamping transient spikes on LIN bus transceiver VCC line during load-dump events. IC Role / Device Role / Timing Role: Overvoltage protector shunting excess energy above 16 V to ground, protecting 3.3 V logic interface. Use Value: 0.5 W power rating and 100 Ω ZZT allow fast response to 100 ms transients without thermal runaway. |
| Aerospace Sensor Signal Conditioning | Medical Infusion Pump Power Management |
Use Scenario: Providing stable bias voltage for radiation-tolerant op-amps in satellite attitude sensors. IC Role / Device Role / Timing Role: Precision reference source for ADC reference buffer, requiring low noise and long-term stability. Use Value: 1 μV/√Hz noise density and inherent radiation hardness meet MIL-PRF-19500 Class V requirements. |
Use Scenario: Regulating auxiliary 16 V rail for motor driver gate bias in battery-powered infusion pumps. IC Role / Device Role / Timing Role: Low-leakage (0.05 μA) Zener clamp maintaining safe gate drive voltage during deep sleep mode. Use Value: Ultra-low IR extends battery life; DO-213AA hermeticity prevents corrosion in humid clinical environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5242B-TP | 15 V nominal, SOT-23 package, 200 mW rating, ±5% tolerance, 17 Ω ZZT | Lower power and smaller footprint; unsuitable for >150 mA continuous operation or >125 °C ambient | Select for cost-sensitive consumer PCBs where thermal margin and high-temp operation are not required |
| Vishay PLZ16B-E3/54 | 16 V nominal, DO-213AA package, 500 mW rating, ±5%, 100 Ω ZZT, AEC-Q200 qualified | Automotive-qualified variant with identical electrical specs and same package; tighter process control for automotive grade | Select for automotive production where AEC-Q200 compliance and PPAP documentation are mandatory |
Compared with MMBZ5242B-TP and PLZ16B-E3/54, the 1N4110UR/TR offers identical 16 V regulation and DO-213AA form factor as the Vishay part but lacks AEC-Q200 certification, while providing higher power headroom and superior high-temperature capability than the SOT-23 alternative.
Availability
1N4110UR/TR is available at Aetrix Electronics and suitable for industrial power monitoring, aerospace sensor conditioning, medical infusion pump power management, and automotive body control module applications requiring stable component supply, long-lifecycle support, and hermetic reliability.
Supply support for 1N4110UR/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 1N4110UR/TR belongs to Microsemi's legacy DO-213AA glass Zener family, designed specifically for applications demanding hermetic sealing, wide temperature operation, and stable voltage reference performance in mission-critical systems.
FAQ
What is the Zener voltage tolerance for 1N4110UR/TR?
The 1N4110UR/TR has a standard ±5% Zener voltage tolerance at 25 °C, as defined by JEDEC registration. Tighter tolerances (±2% or ±1%) are available with C or D suffixes respectively, but the TR-suffixed commercial version uses the base 5% tolerance.
Does 1N4110UR/TR require heatsinking in typical PCB layouts?
No - the 1N4110UR/TR is rated for 0.5 W dissipation at end-cap temperature <100 °C or ambient <25 °C on FR4 with 1 oz copper. For continuous 0.5 W operation, a minimum 5.08 mm × 1.40 mm pad layout (per datasheet) provides sufficient thermal path without added heatsink.
Is 1N4110UR/TR RoHS compliant?
Yes - the "e3" suffix in the full part number (1N4110UR/TR-e3) denotes RoHS compliance with annealed matte-tin plating. The base 1N4110UR/TR ordering code defaults to e3 unless otherwise specified.
What is the maximum reverse leakage current for 1N4110UR/TR at 12.15 V?
The maximum reverse leakage current (IR) for 1N4110UR/TR is 0.05 μA at VR = 12.15 V, measured at 25 °C. This ultra-low leakage supports battery-critical and low-power monitoring applications.
Can 1N4110UR/TR be used as a substitute for 1N4110 in through-hole designs?
No - 1N4110UR/TR is a surface-mount DO-213AA (MELF) device, while the legacy 1N4110 is a through-hole DO-35 axial package. They share identical electrical specs but differ mechanically; PCB redesign is required for substitution.
1N4110UR/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.15 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4110UR/TR FAQ
1.How can I place an order for 1N4110UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4110UR/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 1N4110UR/TR reliable?
The price and inventory of 1N4110UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4110UR/TR is usually 5 days.
3.What payment methods are accepted for 1N4110UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4110UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4110UR/TR?
1N4110UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4110UR/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 1N4110UR/TR?
For technical support, including 1N4110UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4110UR/TR requirements.
6.How does Aetrix verify that 1N4110UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N4110UR/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 1N4110UR/TR meets industry standards.
7.What is the process for return or replacement of 1N4110UR/TR?
All 1N4110UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4110UR/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 1N4110UR/TR part is unused and in its original packaging.
Return procedure for 1N4110UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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