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Microchip Technology 1N750C/TR
- Part No.:
- 1N750C/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N750C/TR.pdf
- Description:
- DIODE ZENER 4.7V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,591
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Product details
Overview
1N750C/TR from Microsemi is a 4.7 V, ±2% tolerance, 500 mW silicon Zener diode in DO-35 glass axial package, qualified to JANTX level per MIL-PRF-19500/127, with dynamic impedance of 15 Ω at 20 mA and temperature coefficient of –0.043%/°C at +25°C, used for precision voltage regulation in military power supplies and analog reference circuits.
For engineers reviewing the 1N750C/TR datasheet, 1N750C/TR pinout, 1N750C/TR application, or 1N750C/TR equivalent, this page delivers verified electrical specs, military-grade qualification status, thermal derating behavior, RoHS-compliant commercial availability, and direct alternative part comparisons grounded in JEDEC-standardized test conditions.
Technical Context
The 1N750C/TR operates as a reverse-biased voltage reference with nominal Zener voltage of 4.7 V at IZT = 20 mA, exhibiting low dynamic impedance (15 Ω) and tightly controlled temperature coefficient (–0.043%/°C at +25°C, +0.025%/°C at +150°C). Its metallurgical bond construction ensures stable breakdown characteristics across –65°C to +175°C operating range.
It is rated for 500 mW average power dissipation at lead temperature TL = +50°C (derating to zero at +175°C), with thermal resistance junction-to-lead RθJL = 250°C/W and junction-to-ambient RθJA = 300°C/W on PCB. Reverse leakage is limited to 5 µA at VR = 1.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.7 V at IZT = 20 mA - precise regulation point for low-power analog references |
| Tolerance | ±2% - tighter than standard ±5%, enabling higher accuracy in feedback loops |
| Power Rating | 500 mW at TL = +50°C - supports stable operation in compact, unheatsinked designs |
| Dynamic Impedance ZZT | 15 Ω at 20 mA - low AC impedance improves regulation under varying load current |
| Temp Coefficient αVZ | –0.043%/°C at +25°C, +0.025%/°C at +150°C - predictable drift over military temperature range |
| Reverse Leakage IR | 5 µA at VR = 1.5 V - minimal error contribution in high-impedance bias networks |
| Package | DO-35 (DO-204AH) glass axial - hermetically sealed, MIL-qualified mechanical form factor |
Pinout & Package
DO-35 (DO-204AH) glass axial package with cathode indicated by band; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026. Weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to circuit ground or lower potential node during Zener operation |
| Cathode | Banded end | Connected to regulated output node; must be held positive relative to anode for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| JANTX qualification per MIL-PRF-19500/127 | Validated reliability for aerospace and defense systems requiring extended lifetime and radiation hardness |
| Internal metallurgical bond | Eliminates wire-bond failure modes, ensuring long-term stability under thermal cycling |
| RoHS-compliant commercial version (TR suffix) | Enables dual-use design with compliant sourcing without sacrificing electrical performance |
| Minimal capacitance & ESD insensitivity | Reduces noise coupling in high-frequency analog stages and eliminates need for external ESD protection |
| Hermetic DO-35 glass seal | Prevents moisture ingress and parameter drift in humid or corrosive environments |
Applications
| Avionics Power Reference | Military Sensor Biasing |
|---|---|
Use Scenario: Providing stable 4.7 V reference for ADC front-end conditioning in airborne inertial measurement units. IC Role / Device Role / Timing Role: Zener voltage reference establishing precision bias point for op-amp input stages. Use Value: ±2% tolerance and –0.043%/°C TC ensure <±10 mV drift over –55°C to +125°C operational range. | Use Scenario: Setting bias voltage for piezoresistive pressure transducers in field-deployable munitions fuzing systems. IC Role / Device Role / Timing Role: Low-noise, low-capacitance shunt regulator supplying excitation voltage to bridge sensors. Use Value: 15 Ω dynamic impedance minimizes sensor output error under dynamic load transients. |
| Secure Comms RF Module | Tactical Radio LDO Pre-regulation |
Use Scenario: Generating clean local oscillator reference voltage in encrypted HF transceiver synthesizer sections. IC Role / Device Role / Timing Role: Noise-suppressing shunt regulator filtering supply ripple before PLL charge pump inputs. Use Value: Hermetic DO-35 package prevents parametric shift under vibration and humidity exposure. | Use Scenario: Pre-regulating 12 V vehicle bus to 5 V before low-dropout linear regulator in handheld radios. IC Role / Device Role / Timing Role: Primary shunt regulator absorbing transient surges and stabilizing intermediate rail. Use Value: 500 mW rating and 250°C/W RθJL allow reliable operation without heatsinking in confined chassis space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N750A/TR | ±5% tolerance (vs. ±2% for 1N750C/TR); identical VZ, ZZT, and package | Suitable where cost sensitivity outweighs precision requirement; same thermal and reliability profile | Select when ±5% regulation accuracy meets system spec and budget constraints apply |
| MMBZ5225BS-7-F | SOT-23 surface-mount package; 4.7 V ±5%; 225 mW rating; 30 Ω ZZT; commercial-only, no MIL qualification | Used in space-constrained consumer or industrial PCBs where military qualification is not required | Choose for automated assembly and smaller footprint where JANTX reliability is unnecessary |
Compared with 1N750A/TR and MMBZ5225BS-7-F, the 1N750C/TR uniquely delivers ±2% tolerance combined with JANTX-level MIL-PRF-19500/127 qualification and 500 mW power handling-making it the only option for high-reliability, precision-shunt applications in deployed defense electronics.
Availability
1N750C/TR is available at Aetrix Electronics and suitable for avionics power references, military sensor biasing, secure comms RF modules, and tactical radio LDO pre-regulation requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for 1N750C/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 defense-qualified components.
The 1N750C/TR belongs to Microsemi's legacy MIL-PRF-19500/127-qualified Zener diode family, engineered specifically for precision voltage regulation in aerospace, defense, and critical infrastructure systems where long-term stability and environmental resilience are mandatory.
FAQ
What is the Zener voltage and test condition for the 1N750C/TR?
The 1N750C/TR has a nominal Zener voltage of 4.7 V measured at IZT = 20 mA, with ±2% tolerance. Voltage is specified per JEDEC test methodology: measurement taken 20 seconds after applying DC test current, under stabilized thermal conditions. This value is confirmed in Microsemi T4-LDS-0288 Rev. 1, Page 3.
Is the 1N750C/TR RoHS compliant?
Yes, the 1N750C/TR is RoHS compliant, as indicated by the "e3" designation in its nomenclature and confirmed in the Mechanical and Packaging section of T4-LDS-0288. It uses annealed matte-tin plating on leads and meets RoHS requirements for commercial-grade versions only.
What does the "C" in 1N750C/TR signify?
The "C" in 1N750C/TR denotes ±2% Zener voltage tolerance, per Microsemi's part nomenclature guide in T4-LDS-0288 Page 2. It distinguishes this variant from the ±5% "A" version (1N750A/TR) and the ±1% "D" version (1N750D/TR).
What is the maximum power dissipation for the 1N750C/TR at ambient temperature?
The 1N750C/TR is rated for 400 mW average power dissipation at TA = +55°C when mounted on a typical FR4 PCB with 1 oz copper, derating linearly to zero at +175°C. This is distinct from its 500 mW rating at TL = +50°C with 0.375″ lead length, per Maximum Ratings table on Page 1 of T4-LDS-0288.
Does the 1N750C/TR have JANTX qualification?
Yes, the 1N750C/TR carries JANTX qualification per MIL-PRF-19500/127, as explicitly stated in the DESCRIPTION and FEATURES sections of T4-LDS-0288. This certification covers reliability testing including temperature cycling, hermeticity, and long-term life validation for defense applications.
1N750C/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.7 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 19 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1 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-204AH (DO-35)
1N750C/TR FAQ
1.How can I place an order for 1N750C/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N750C/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 1N750C/TR reliable?
The price and inventory of 1N750C/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N750C/TR is usually 5 days.
3.What payment methods are accepted for 1N750C/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N750C/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N750C/TR?
1N750C/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N750C/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 1N750C/TR?
For technical support, including 1N750C/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N750C/TR requirements.
6.How does Aetrix verify that 1N750C/TR is sourced from the original manufacturer or authorized distributors?
All 1N750C/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 1N750C/TR meets industry standards.
7.What is the process for return or replacement of 1N750C/TR?
All 1N750C/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N750C/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 1N750C/TR part is unused and in its original packaging.
Return procedure for 1N750C/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N750C/TR Tags
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