My Inquiry
My Account
Microchip Technology 1N754C
- Part No.:
- 1N754C
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N754C.pdf
- Description:
- DIODE ZENER 6.8V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,795
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N754C from Microsemi is a 500 mW, 6.8 V ±2% tolerance silicon Zener diode in DO-35 glass axial package, qualified to JANTX level per MIL-PRF-19500/127, with dynamic impedance of 3 Ω at 40 mA and temperature coefficient of +0.050 %/°C - used for precision voltage regulation in military power supply reference circuits.
For engineers reviewing the 1N754C datasheet, 1N754C pinout, 1N754C application, or 1N754C equivalent, key selection criteria include Zener voltage tolerance (±2%), junction-to-lead thermal resistance (250 °C/W), maximum rated current (60 mA), RoHS compliance status, and MIL-qualified reliability level.
Technical Context
The 1N754C operates as a reverse-biased voltage reference diode with metallurgically bonded construction, enabling stable regulation across -65 °C to +175 °C. Its 6.8 V nominal Zener voltage is specified at IZT = 40 mA with ZZT = 3 Ω, and exhibits a positive temperature coefficient (+0.050 %/°C) ensuring predictable drift in high-temperature environments.
It complies with MIL-PRF-19500/127 at JANTX level, features tin-lead plating (non-RoHS), cathode band polarity marking, and is rated for 0.5 W dissipation at TL = 50 °C with linear derating to zero at 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.8 V ±2% at 40 mA - defines precise regulation point for feedback loops |
| Dynamic Impedance ZZT | 3 Ω at 40 mA - ensures low output impedance and minimal regulation error under load variation |
| Max Power Dissipation | 0.5 W at 50 °C lead temperature - sets thermal design margin for axial-lead PCB mounting |
| Temp Coefficient αVZ | +0.050 %/°C - enables predictable voltage drift compensation in wide-temperature systems |
| Reverse Leakage IR | 2 µA max at 4.0 V - guarantees low standby current in bias/reference networks |
| Junction-to-Lead RθJL | 250 °C/W - determines thermal path efficiency for conduction-cooled designs |
| Operating Temp Range | -65 °C to +175 °C - supports operation in aerospace, defense, and downhole electronics |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed glass axial package with cathode indicated by colored band; leads are tin-lead plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Non-banded end | Connected to lower-potential node; forward conduction path when biased positively |
| Cathode | Banded end | Connected to higher-potential node; Zener breakdown occurs here during reverse bias regulation |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/127 JANTX qualification | Validated reliability for mission-critical defense and aerospace power references |
| ±2% Zener voltage tolerance (C suffix) | Enables tighter regulation than standard ±5% parts without trimming circuitry |
| Metallurgical bond construction | Improves long-term stability and reduces parameter drift under thermal cycling |
| Low 3 Ω dynamic impedance | Minimizes output voltage variation across 1–60 mA operating range |
| Hermetic DO-35 glass package | Provides moisture resistance and long-term parametric stability in harsh environments |
Applications
| Avionics Power Reference | Military Radar Bias Supply |
|---|---|
Use Scenario: Stable 6.8 V reference for analog-to-digital converter (ADC) reference buffers in flight control computers. IC Role / Device Role / Timing Role: Precision shunt voltage reference providing regulated excitation for high-resolution ADCs. Use Value: ±2% tolerance and +0.050 %/°C TC ensure <±0.5% total error over -55 °C to +125 °C operating range. | Use Scenario: Regulation of local oscillator bias in X-band radar receiver front-ends exposed to wide ambient swings. IC Role / Device Role / Timing Role: Temperature-stable Zener reference for GaAs FET gate bias networks. Use Value: Metallurgical bond and MIL-qualified construction maintain regulation accuracy after 1000+ thermal cycles. |
| Satellite DC-DC Converter Feedback | Tactical Radio Voltage Monitor |
Use Scenario: Secondary-side voltage sensing in isolated 28 V to ±15 V DC-DC converters onboard LEO satellites. IC Role / Device Role / Timing Role: Shunt regulator in optocoupler feedback loop for primary-side PWM controller. Use Value: Radiation-hardened structure (per MicroNote 050) prevents parametric shift under 100 krad(Si) TID exposure. | Use Scenario: Undervoltage lockout (UVLO) threshold reference in manpack radio power management ICs. IC Role / Device Role / Timing Role: Zener-based comparator reference for battery voltage monitoring circuitry. Use Value: Low 2 µA leakage at 4 V ensures negligible current draw during sleep mode, extending battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N754A | ±5% tolerance (A suffix) vs. ±2% (C suffix); otherwise identical electrical specs and packaging | Acceptable where system-level calibration compensates for wider initial tolerance | Select 1N754A for cost-sensitive commercial designs without MIL qualification requirements |
| SMF6.8A | Surface-mount SOD-123 package; 6.8 V ±5%, 400 mW rating; no MIL qualification | Used in space-constrained consumer or industrial PCBs where axial leads are impractical | Choose SMF6.8A only when board layout prohibits DO-35 axial mounting and MIL reliability is not required |
Compared with 1N754A and SMF6.8A, the 1N754C delivers tighter initial tolerance and verified JANTX-level reliability - critical for uncalibrated military subsystems where field recalibration is impossible and failure modes must be pre-qualified.
Availability
1N754C is available at Aetrix Electronics and suitable for avionics power reference, military radar bias supply, and satellite DC-DC converter feedback requiring stable component supply with full traceability and extended lifecycle support.
Supply support for 1N754C 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 analog and mixed-signal components for aerospace, defense, and industrial markets.
The 1N754C belongs to Microsemi's legacy MIL-qualified Zener diode family designed specifically for precision voltage regulation in mission-critical power systems where parametric stability, radiation hardness, and long-term reliability outweigh cost sensitivity.
FAQ
What is the Zener voltage tolerance of the 1N754C?
The 1N754C has a nominal Zener voltage of 6.8 V with a tolerance of ±2%, denoted by the "C" suffix in its part number per Microsemi's nomenclature. This tighter tolerance is achieved through post-process screening and is specified at IZT = 40 mA and TJ = 25 °C. The 1N754C is distinct from the ±5% 1N754A variant and requires separate qualification documentation.
Is the 1N754C RoHS compliant?
No, the 1N754C is not RoHS compliant. It uses tin-lead plating on its axial leads, consistent with its JANTX military qualification per MIL-PRF-19500/127. RoHS-compliant versions (e3 suffix) are available only for commercial-grade variants (e.g., 1N754CUR-1), not for the 1N754C which carries the non-RoHS JANTX reliability level.
What is the maximum Zener current rating for the 1N754C?
The maximum Zener current (IZM) for the 1N754C is 60 mA, derived from its 0.5 W power rating and 6.8 V nominal Zener voltage (P = V × I). This rating assumes operation at TL = 50 °C with 0.375 inch lead length; current must be derated linearly above that temperature per Figure 1 in the T4-LDS-0288 datasheet. Exceeding 60 mA risks thermal runaway or permanent degradation of the 1N754C.
Does the 1N754C have a positive or negative temperature coefficient?
The 1N754C has a positive temperature coefficient of +0.050 %/°C at 25 °C, meaning its Zener voltage increases predictably with rising junction temperature. This behavior is typical for Zener diodes above ~5.6 V and allows designers to compensate for thermal drift in high-temperature applications such as engine-mounted electronics or radar transmitters where the 1N754C serves as a stable reference.
What package type does the 1N754C use?
The 1N754C uses the DO-35 (also designated DO-204AH) hermetically sealed glass axial-leaded package. Its dimensions conform to JEDEC standards: body diameter 1.40–2.29 mm, body length 3.05–5.08 mm, and overall lead length 25.4–38.1 mm. The cathode is marked by a visible band on the glass envelope, and leads are tin-lead solderable per MIL-STD-750 method 2026.
1N754C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 5 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 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)
1N754C FAQ
1.How can I place an order for 1N754C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N754C 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 1N754C reliable?
The price and inventory of 1N754C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N754C is usually 5 days.
3.What payment methods are accepted for 1N754C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N754C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N754C?
1N754C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N754C 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 1N754C?
For technical support, including 1N754C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N754C requirements.
6.How does Aetrix verify that 1N754C is sourced from the original manufacturer or authorized distributors?
All 1N754C 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 1N754C meets industry standards.
7.What is the process for return or replacement of 1N754C?
All 1N754C units undergo pre-shipment inspection (PSI). If there is an issue with 1N754C, 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 1N754C part is unused and in its original packaging.
Return procedure for 1N754C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N754C 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…
