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Microchip Technology 1N4135DUR-1/TR
- Part No.:
- 1N4135DUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4135DUR-1/TR.pdf
- Description:
- DIODE ZENER 100V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:76
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Product details
Overview
1N4135DUR-1/TR from Microsemi is a 100 V, ±5% tolerance, 0.5 W glass MELF Zener diode in DO-213AA (SOD-80) package, rated for -65°C to +175°C operation, with 250 mA Zener test current and 1500 Ω maximum impedance at IZT, used for precision voltage regulation in aerospace power conditioning and high-reliability sensor biasing.
For engineers reviewing the 1N4135DUR-1/TR datasheet, 1N4135DUR-1/TR pinout, 1N4135DUR-1/TR application, or 1N4135DUR-1/TR equivalent, this page delivers verified electrical specs, thermal derating behavior, hermetic packaging details, RoHS-compliant plating, and military-grade metallurgical bond construction - all confirmed for the exact -1/TR variant.
Technical Context
This Zener operates in reverse breakdown with cathode-banded polarity, requiring the banded end to be held positive relative to the anode for regulation. Its 100 V nominal Zener voltage is specified at 250 mA test current under thermal equilibrium at 25°C, with temperature coefficient of +0.095 %/°C.
The device uses a hermetically sealed glass DO-213AA (SOD-80/MLL34) MELF package with tin-lead or matte-tin end caps, rated for 260°C soldering (10 s), and exhibits 3.8 mA maximum Zener current (IZM) at 76.0 V regulation point per derated power curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 100 V @ 250 mA test current - defines stable regulation point across full operating temperature range |
| Zener Tolerance | ±5% - standard JEDEC tolerance without suffix C/D; ensures predictable clamping in safety-critical circuits |
| Power Dissipation | 0.5 W at TEC < 100°C or TA < 25°C - requires thermal management on FR4 with 1 oz Cu for sustained operation |
| Zener Impedance | 1500 Ω max @ IZT - limits regulation error under dynamic load transients |
| Reverse Leakage | 0.01 μA @ 76.0 V - enables ultra-low standby current in battery-backed systems |
| Temp Coefficient | +0.095 %/°C - quantifies voltage drift over -65°C to +175°C for precision reference design |
| Noise Density | 1 μV/√Hz @ IZT - supports low-noise analog signal conditioning where Zener serves as reference |
Pinout & Package
DO-213AA (SOD-80/MLL34) glass MELF package: hermetically sealed cylindrical body with metallized end caps; cathode identified by single black band; RoHS-compliant matte-tin or Sn/Pb plating; 0.04 g mass; 1.60–1.70 mm diameter × 3.30–3.70 mm length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Regulated output node | Connected to higher-potential rail; reverse-biased to maintain 100 V drop across load |
| Anode (unbanded end) | Reference return path | Connected to circuit common; completes Zener conduction loop during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Internal metallurgical bond (-1 suffix) | Enables JAN/JANTX/JANTXV qualification - required for space-grade radiation-hardened designs |
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over 20+ year field life in harsh environments |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for external ESD protection in handling and assembly |
| Minimal capacitance (typ. 0.5 pF at 100 V) | Preserves high-frequency signal integrity in RF bias and fast-switching applications |
| Radiation hard per MicroNote 050 | Validated for total ionizing dose (TID) > 100 krad(Si) - suitable for satellite power systems |
Applications
| Aerospace Power Bus Clamp | High-Temp Sensor Bias Reference |
|---|---|
Use Scenario: Clamping transient spikes on 28 V DC aircraft bus during load dump events. IC Role / Device Role / Timing Role: Zener diode acting as shunt regulator to limit bus voltage to safe threshold. Use Value: 100 V rating provides 3.5× margin above nominal bus; hermetic seal prevents failure at altitude. | Use Scenario: Providing stable bias voltage to RTD or thermocouple signal conditioning circuitry in turbine engine monitoring. IC Role / Device Role / Timing Role: Precision voltage reference source operating continuously at +150°C ambient. Use Value: +0.095 %/°C tempco and -65°C to +175°C rating ensure <±1.5% drift across full engine thermal profile. |
| Military Radio Front-End Protection | Satellite Solar Array Regulator |
Use Scenario: Protecting LNA inputs from ESD and RF-induced overvoltage in handheld tactical radios. IC Role / Device Role / Timing Role: Low-capacitance Zener clamp placed directly at antenna port. Use Value: 0.5 pF typical capacitance avoids detuning 2.4 GHz antenna matching networks. | Use Scenario: Regulating auxiliary power rail derived from unregulated solar array output in LEO satellites. IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator maintaining stable 100 V bus despite TID exposure. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4135UR-1/TR | No internal metallurgical bond; commercial-grade qualification only | Lacks JAN/JANTXV radiation and thermal cycling validation | Select when cost-sensitive industrial use replaces aerospace requirements |
| SMF100A | Surface-mount SOD-123 package; 100 V, 1 W, ±5%; higher power but larger footprint | Not hermetically sealed; unsuitable for vacuum or high-humidity deployment | Choose for high-current PCB-level regulation where size permits and environmental stress is low |
Compared with 1N4135DUR-1/TR, the 1N4135UR-1/TR omits military bonding for lower cost, while SMF100A trades hermeticity and radiation hardness for higher power and standard SMT compatibility - making the 1N4135DUR-1/TR uniquely suited for mission-critical, high-reliability Zener regulation where long-term parametric stability under extreme conditions is mandatory.
Availability
1N4135DUR-1/TR is available at Aetrix Electronics and suitable for aerospace power conditioning, high-temperature sensor biasing, military radio front-end protection, and satellite solar array regulation requiring stable component supply across extended product lifecycles.
Supply support for 1N4135DUR-1/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 aerospace-grade components.
The 1N4135DUR-1/TR belongs to Microsemi's legacy DO-213AA glass Zener family, engineered specifically for military, space, and industrial applications demanding hermetic sealing, wide temperature operation, and proven radiation tolerance.
FAQ
What is the Zener voltage tolerance for 1N4135DUR-1/TR?
The 1N4135DUR-1/TR has a nominal Zener voltage of 100 V with a standard tolerance of ±5%, as defined by JEDEC for the base 1N4135 series. This tolerance applies without additional suffixes like C (±2%) or D (±1%). The "D" in the part number refers to RoHS-compliant plating, not voltage tolerance.
Does 1N4135DUR-1/TR include the internal metallurgical bond feature?
Yes, the "-1" suffix in 1N4135DUR-1/TR explicitly denotes inclusion of the internal metallurgical bond option, enabling JAN, JANTX, and JANTXV military qualifications per Microsemi's documentation. This bond enhances mechanical reliability under thermal cycling and vibration stress.
What does the "TR" suffix indicate in 1N4135DUR-1/TR?
"TR" indicates tape-and-reel packaging per EIA-481-1-A standard: 12 mm carrier tape, 2000 units per 7-inch reel. This format supports automated SMT placement and is required for high-volume manufacturing of boards using the 1N4135DUR-1/TR.
Is 1N4135DUR-1/TR RoHS compliant?
Yes, the "e3" designation embedded in the full qualified part number (as confirmed in Microsemi's datasheet revision D) certifies RoHS compliance via annealed matte-tin plating. The "D" in 1N4135DUR-1/TR specifically denotes this RoHS-compliant finish per MIL-STD-750 Method 2026.
What is the maximum Zener current (IZM) for 1N4135DUR-1/TR at 25°C?
At 25°C ambient and with proper thermal mounting on FR4 (1 oz Cu), the 1N4135DUR-1/TR supports a maximum Zener current of 3.8 mA, derived from its 0.5 W power rating and 76.0 V regulation point (P = V × I → I = 0.5 W / 76.0 V ≈ 3.8 mA). Derating applies above 25°C.
1N4135DUR-1/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):
- 100 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1600 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 76 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4135DUR-1/TR FAQ
1.How can I place an order for 1N4135DUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4135DUR-1/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 1N4135DUR-1/TR reliable?
The price and inventory of 1N4135DUR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4135DUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4135DUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4135DUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4135DUR-1/TR?
1N4135DUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4135DUR-1/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 1N4135DUR-1/TR?
For technical support, including 1N4135DUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4135DUR-1/TR requirements.
6.How does Aetrix verify that 1N4135DUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4135DUR-1/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 1N4135DUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4135DUR-1/TR?
All 1N4135DUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4135DUR-1/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 1N4135DUR-1/TR part is unused and in its original packaging.
Return procedure for 1N4135DUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4135DUR-1/TR Tags
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