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Microchip Technology 1N3010RB
- Part No.:
- 1N3010RB
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-203AA, DO-4, Stud
- Datasheet:
-
1N3010RB.pdf
- Description:
- DIODE ZENER 140V 10W DO4
- Quantity:
- Payment:
- Shipping:
Inventory:5,949
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Product details
Overview
1N3010RB from Microsemi is a 10 W, 140 V Zener diode in DO-213AA (DO-4) hermetically sealed metal-glass package with reverse polarity (cathode-to-stud), qualified to MIL-PRF-19500/124 JANTXV level for high-reliability voltage regulation in aerospace power conditioning and radiation-hardened systems.
For engineers reviewing the 1N3010RB datasheet, 1N3010RB pinout, 1N3010RB application, or 1N3010RB equivalent, this part delivers precise ±5% Zener tolerance at 140 V, 18 mA test current, 58 Ω dynamic impedance, -65°C to +175°C junction operation, and 12°C/W thermal resistance - critical for stable regulation under extreme thermal and radiation environments.
Technical Context
This device operates as a high-power, hermetically sealed Zener regulator with reverse polarity configuration (cathode connected to the stud terminal), enabling direct mounting to heatsinks while maintaining electrical isolation via optional insulator hardware. Its welded metal-glass construction ensures long-term reliability in vacuum and high-vacuum applications.
It exhibits a +0.095%/°C temperature coefficient, 10 µA maximum reverse leakage at 100.0 V, and linear derating from 10 W at +55°C to zero at +175°C. The 12°C/W RθJC supports high-power dissipation when mounted to thermally optimized chassis or cold plates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 140 V ±5% at 18 mA - enables precision reference generation for 120–150 V DC bus regulation. |
| Power Dissipation (PD) | 10 W @ TC = +55°C - supports high-current shunt regulation without external heatsink in moderate ambient. |
| Dynamic Impedance (ZZT) | 58 Ω @ IZT = 18 mA - ensures low output impedance for stable regulation under varying load conditions. |
| Junction Temperature Range | -65°C to +175°C - suitable for operation in spacecraft, downhole tools, and military avionics without derating. |
| Thermal Resistance (RθJC) | 12°C/W - allows predictable thermal design when stud-mounted to aluminum or copper baseplates. |
| Reverse Leakage (IR) | 10 µA @ 100.0 V - guarantees minimal standby current in high-impedance bias networks. |
| Temp. Coefficient (αVZ) | +0.095%/°C - provides predictable, monotonic drift for compensated reference circuits. |
Pinout & Package
Package: DO-213AA (DO-4), hermetically sealed metal-glass stud-mount case with 10-32 UNF–2A threaded stud (anode isolated, cathode connected to stud). Weight ≈7.5 g. Mounting requires optional insulator/bushing for electrical isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Stud (Metal Body) | Cathode | Primary heat path and electrical connection point; must be electrically isolated from chassis unless circuit design requires cathode-ground reference. |
| Lead Wire | Anode | Flexible tinned-lead termination for PCB or wiring harness connection; polarity confirmed by "RB" suffix (reverse). |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic metal-glass seal | Prevents moisture ingress and outgassing in vacuum/space environments; validated per MIL-STD-750 method 1020. |
| JANTXV qualification | Fully screened to MIL-PRF-19500/124 Level V - includes burn-in, temperature cycling, and radiation hardness per MicroNote 050. |
| Reverse polarity (RB) | Cathode-to-stud configuration enables direct thermal coupling to heatsink while referencing regulated output to chassis ground. |
| Internal solder bond construction | Eliminates wire bonds susceptible to vibration fatigue - critical for launch vehicle and aircraft power systems. |
| Nonsensitive to ESD | Withstands >4 kV HBM per MIL-STD-750 method 1020 - reduces handling risk during assembly of high-reliability boards. |
Applications
| Avionics Power Bus Regulation | Satellite DC-DC Converter Reference |
|---|---|
|
Use Scenario: Stabilizing 140 V primary bus in airborne radar transmitters under wide temperature (-55°C to +125°C) and vibration stress. IC Role / Device Role / Timing Role: High-power shunt regulator maintaining bus voltage within ±5% despite 0–8 A load transients. Use Value: 12°C/W RθJC and JANTXV screening ensure uninterrupted operation during extended mission profiles without thermal runaway. |
Use Scenario: Providing precision 140 V reference for isolated feedback in radiation-tolerant satellite SMPS units. IC Role / Device Role / Timing Role: Primary voltage reference element in optocoupler-coupled secondary-side regulation loop. Use Value: +0.095%/°C tempco and <10 µA leakage enable stable setpoint accuracy over 10-year orbital lifetime. |
| Nuclear Instrumentation Supply | Downhole Logging Tool Bias |
|
Use Scenario: Regulating detector bias supply in neutron/gamma spectroscopy systems exposed to >100 krad(Si) total ionizing dose. IC Role / Device Role / Timing Role: Radiation-hardened Zener reference ensuring consistent PMT gain calibration across mission duration. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy, reducing system mass by >150 g. |
Use Scenario: Generating stable 140 V bias for piezoelectric sensors in oil/gas well logging tools operating at 175°C ambient. IC Role / Device Role / Timing Role: High-temperature shunt regulator compensating for transformer winding resistance drift. Use Value: -65°C to +175°C operational range and 10 W rating allow direct mounting to tool housing without active cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N3010B | Standard polarity (anode-to-stud); identical VZ, PD, and screening - only polarity differs. | Requires inverted mechanical mounting or circuit redesign to maintain cathode-ground topology. | Select 1N3010B only if anode-to-chassis grounding is acceptable and thermal path alignment permits. |
| SMCJ140A | Surface-mount TVS diode (not Zener); 140 V standoff, 1500 W peak pulse, no DC regulation capability. | Not suitable for continuous shunt regulation; limited to transient suppression only. | Use SMCJ140A only for surge protection - never as DC voltage reference or regulator replacement for 1N3010RB. |
Compared with 1N3010B and SMCJ140A, the 1N3010RB uniquely combines JANTXV-level screening, hermetic DO-4 packaging, reverse polarity, and true 10 W DC Zener regulation - making it irreplaceable for sustained high-reliability voltage reference applications where polarity, stability, and radiation tolerance are non-negotiable.
Availability
1N3010RB is available at Aetrix Electronics and suitable for avionics power bus regulation, satellite DC-DC converter reference, and nuclear instrumentation supply requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N3010RB 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, with emphasis on radiation-hardened and high-temperature performance.
The 1N3010RB belongs to Microsemi's legacy MIL-qualified Zener diode family, engineered specifically for voltage regulation in mission-critical power systems where hermeticity, thermal robustness, and long-term parametric stability are mandatory.
FAQ
What does the "RB" suffix mean in 1N3010RB?
The "RB" suffix in 1N3010RB indicates reverse polarity: the cathode is connected to the metal stud, and the anode is the lead wire. This configuration allows direct thermal mounting of the stud to a heatsink while referencing the regulated output to chassis ground - a key requirement in many high-reliability power systems. Standard polarity (1N3010B) has anode-to-stud instead.
Is 1N3010RB RoHS compliant?
No, 1N3010RB is not RoHS compliant. RoHS-compliant versions of this series carry the "e3" suffix (e.g., 1N3010RBe3) and are available only in commercial-grade variants. The 1N3010RB is a JANTXV-qualified military part with tin-lead plating, per MIL-PRF-19500/124 requirements.
What is the maximum steady-state power dissipation for 1N3010RB?
The 1N3010RB has a steady-state power dissipation rating of 10 W at case temperature (TC) = +55°C. Above +55°C, it must be derated linearly at 0.083 W/°C, reaching zero dissipation at +175°C. This derating curve is defined in the T4-LDS-0075 datasheet Figure 1.
Can 1N3010RB be used in surface-mount designs?
No, 1N3010RB is not a surface-mount device. It uses the through-hole DO-213AA (DO-4) stud-mount package with 10-32 threaded stud. Microsemi explicitly states in the datasheet that surface-mount equivalents require factory consultation - no drop-in SMT variant exists for 1N3010RB.
What is the Zener test current (IZT) and dynamic impedance (ZZT) for 1N3010RB?
For 1N3010RB, the Zener test current (IZT) is 18 mA, and the dynamic impedance (ZZT) is 58 Ω measured at that current. These values are specified in the Electrical Characteristics table on page 4 of T4-LDS-0075 Rev. 3 and define the small-signal AC impedance under nominal regulation conditions.
1N3010RB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-203AA, DO-4, Stud
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 140 V
- Tolerance:
- ±5%
- Power - Max:
- 10 W
- Impedance (Max) (Zzt):
- 125 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 2 A
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Stud Mount
- Supplier Device Package:
- DO-4 (DO-203AA)
1N3010RB FAQ
1.How can I place an order for 1N3010RB through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N3010RB 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 1N3010RB reliable?
The price and inventory of 1N3010RB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N3010RB is usually 5 days.
3.What payment methods are accepted for 1N3010RB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N3010RB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N3010RB?
1N3010RB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N3010RB 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 1N3010RB?
For technical support, including 1N3010RB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N3010RB requirements.
6.How does Aetrix verify that 1N3010RB is sourced from the original manufacturer or authorized distributors?
All 1N3010RB 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 1N3010RB meets industry standards.
7.What is the process for return or replacement of 1N3010RB?
All 1N3010RB units undergo pre-shipment inspection (PSI). If there is an issue with 1N3010RB, 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 1N3010RB part is unused and in its original packaging.
Return procedure for 1N3010RB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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