My Inquiry
My Account
Microchip Technology 1N4700
- Part No.:
- 1N4700
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N4700.pdf
- Description:
- DIODE ZENER 13V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,471
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4700 from Microsemi is a 13.0 V, ±5% tolerance, 500 mW axial-leaded Zener diode in DO-7 (DO-204AA) glass package, designed for precision voltage regulation in low-power analog reference and protection circuits across industrial and aerospace systems.
For engineers reviewing the 1N4700 datasheet, 1N4700 pinout, 1N4700 application, or 1N4700 equivalent, key selection criteria include its 13.0 V nominal Zener voltage, 50 µA test current, 0.13 V maximum voltage regulation (10–100 µA), 0.05 µA reverse leakage at 10.4 V, and 38.0 mA maximum DC Zener current under derated thermal conditions.
Technical Context
The 1N4700 operates as a two-terminal voltage reference device with cathode-banded polarity, requiring reverse-bias operation where the banded end is held positive relative to the anode. Its Zener breakdown mechanism delivers stable regulation over 10–100 µA operating current and −65 °C to +175 °C temperature range.
It features internal metallurgical bonding per MIL-PRF-19500 requirements, nonsensitive ESD performance per MIL-STD-750 Method 1020, and inherent radiation hardness documented in MicroNote 050 - enabling use in high-reliability environments without additional hardening.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 13.0 V ±5% - defines regulated output voltage at 50 µA test current; used directly in reference divider and clamp design. |
| Zener Test Current | 50 µA - standardized bias point for voltage specification; ensures repeatability in calibration-critical applications. |
| Voltage Regulation | 0.13 V max (10–100 µA) - quantifies dynamic impedance-induced variation; enables predictable error budgeting in low-current references. |
| Reverse Leakage Current | 0.05 µA @ 10.4 V - confirms low off-state power loss and minimal loading on high-impedance source networks. |
| Max DC Zener Current | 38.0 mA - sets absolute upper limit for continuous conduction; determines minimum series resistor value in shunt regulator designs. |
| Power Dissipation | 500 mW @ TL < 25 °C (3/8″ lead length) - defines thermal boundary for safe operation on lead-frame or chassis-mounted layouts. |
| Operating Temperature | −65 °C to +175 °C - supports deployment in extended-environment avionics, downhole tools, and military electronics. |
Pinout & Package
DO-7 (DO-204AA) hermetically sealed axial-leaded glass package with tin-lead plated leads per MIL-STD-750 Method 2026; cathode indicated by color band; polarity critical for reverse-bias Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side terminal | Connected to circuit ground or lowest potential node in shunt regulation; unmarked lead. |
| Cathode | High-side terminal | Banded end; connected to input supply or voltage node requiring clamping/regulation; must be held positive relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered Zener | Complies with JEDEC 1N4678–1N4717 standard - ensures cross-manufacturer interchangeability and qualification traceability. |
| Internal metallurgical bond | Meets MIL-PRF-19500 mechanical robustness requirements - enhances reliability under thermal cycling and vibration stress. |
| Guaranteed regulation range | Specified ∆VZ from 10 µA to 100 µA - enables stable reference generation even in ultra-low-current bias networks. |
| Radiation-hardened construction | Documented radiation tolerance per MicroNote 050 - suitable for space-qualified and nuclear instrumentation applications. |
Applications
| Industrial Sensor Signal Conditioning | Aerospace Power Rail Clamping |
|---|---|
Use Scenario: Stabilizing excitation voltage for strain-gauge bridges in harsh-temperature factory-floor transmitters. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference providing fixed 13.0 V bias independent of supply ripple or load variation. Use Value: Maintains bridge linearity within ±0.1% over −40 °C to +85 °C due to tight 5% tolerance and low 0.13 V regulation spread. | Use Scenario: Protecting 12 V logic rails against transient overvoltage during aircraft power sequencing events. IC Role / Device Role / Timing Role: Passive crowbar element absorbing surge energy by entering controlled Zener conduction above 13.0 V. Use Value: Limits rail excursion to ≤13.13 V (13.0 V + 0.13 V) with sub-µA leakage below clamp threshold - no active control needed. |
| Medical Instrument Reference Divider | Military Radio Frequency Bias Network |
Use Scenario: Generating precise 6.5 V mid-rail for op-amp input stages in portable ECG amplifiers. IC Role / Device Role / Timing Role: Low-noise Zener source feeding resistive divider; operates at 25 µA to minimize self-heating drift. Use Value: Delivers <10 ppm/°C TC stability and <0.5 µV RMS noise - critical for microvolt-level biopotential measurement accuracy. | Use Scenario: Establishing stable gate bias for GaAs FETs in HF transceiver front-end amplifiers. IC Role / Device Role / Timing Role: DC bias point stabilizer compensating for temperature-induced FET threshold shift. Use Value: Holds bias within ±15 mV over −55 °C to +125 °C using 13.0 V reference and matched resistor network. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4700A (ON Semiconductor) | Same 13.0 V nominal, ±5% tolerance, DO-41 package; 1.0 W rating vs. 0.5 W; higher thermal resistance (500 °C/W junction-to-ambient). | Supports higher continuous power but requires larger PCB footprint and heatsinking; not drop-in for space-constrained DO-7 layouts. | Select when >500 mW dissipation is required and board area allows DO-41 mounting. |
| BZX55C13 (Vishay) | 13 V ±5%, DO-35 package; 500 mW rating; 100 µA test current; 0.2 V regulation (10–100 µA); 0.1 µA leakage @ 10.4 V. | Higher regulation spread and leakage reduce precision in low-current references; widely available in commercial volumes. | Select for cost-sensitive industrial designs where ±0.2 V regulation tolerance is acceptable. |
Compared with 1N4700, the 1N4700A offers higher power handling but demands layout revision, while BZX55C13 trades regulation precision for broader commercial availability - making 1N4700 optimal for high-stability, space-constrained, high-reliability applications.
Availability
1N4700 is available at Aetrix Electronics and suitable for industrial sensor conditioning, aerospace power clamping, medical instrument reference dividers, and military RF bias networks requiring stable component supply across extended temperature and radiation environments.
Supply support for 1N4700 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 analog, RF, and radiation-hardened components for defense, aerospace, and industrial markets.
The 1N4678–1N4717 series was engineered to deliver JEDEC-standardized, MIL-qualified Zener regulation in hermetic DO-7 packages - targeting applications demanding long-term voltage stability under extreme thermal and radiation stress.
FAQ
What is the nominal Zener voltage and tolerance of the 1N4700?
The 1N4700 has a nominal Zener voltage of 13.0 V with a standard tolerance of ±5%. This value is measured at a Zener test current of 50 µA and applies across the full operating temperature range of −65 °C to +175 °C. Tighter tolerances (±2% or ±1%) are available with C or D suffixes, but the base 1N4700 part uses the standard 5% band.
What is the maximum power dissipation rating for the 1N4700 and under what conditions?
The 1N4700 is rated for 500 mW steady-state power dissipation when lead temperature (TL) is maintained below 25 °C with a minimum 3/8 inch (10 mm) lead length from the glass body. At ambient temperature (TA) on FR4 board, the derated limit is 417 mW - based on thermal resistance of 360 °C/W with specified copper pad geometry.
How is polarity marked and used in circuit design for the 1N4700?
The 1N4700 uses a cathode band to indicate polarity: the banded end is the cathode and must be held positive relative to the anode for proper Zener regulation. In shunt regulator configurations, the cathode connects to the voltage node being regulated, while the anode connects to ground or the lower-potential rail - reversing polarity results in forward conduction only.
Does the 1N4700 meet military screening standards, and how is that indicated in the part number?
Yes, the 1N4700 can be supplied with MIL-PRF-19500 screening levels (JAN, JANTX, JANTXV, JANS) by adding MQ, MX, MV, or MSP prefixes respectively to the base part number. These variants undergo rigorous environmental and electrical testing per military specifications - the unsuffixed 1N4700 is the commercial-grade version meeting JEDEC registration only.
What is the reverse leakage current specification for the 1N4700 and at what voltage is it measured?
The 1N4700 has a maximum reverse leakage current of 0.05 µA, measured at a reverse voltage (VR) of 10.4 V - which is 80% of its nominal 13.0 V Zener voltage. This low leakage ensures minimal loading on high-impedance source networks and contributes to stable reference performance in precision analog circuits.
1N4700 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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.8 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N4700 FAQ
1.How can I place an order for 1N4700 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4700 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 1N4700 reliable?
The price and inventory of 1N4700 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4700 is usually 5 days.
3.What payment methods are accepted for 1N4700?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4700 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4700?
1N4700 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4700 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 1N4700?
For technical support, including 1N4700 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4700 requirements.
6.How does Aetrix verify that 1N4700 is sourced from the original manufacturer or authorized distributors?
All 1N4700 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 1N4700 meets industry standards.
7.What is the process for return or replacement of 1N4700?
All 1N4700 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4700, 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 1N4700 part is unused and in its original packaging.
Return procedure for 1N4700:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4700 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…
