My Inquiry
My Account
Microchip Technology 1N5236A/TR
- Part No.:
- 1N5236A/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
1N5236A/TR.pdf
- Description:
- DIODE ZENER 7.5V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,040
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5236A/TR from Microsemi is a 7.5 V, ±10% tolerance, 500 mW glass axial-lead Zener diode in DO-35 (DO-204AH) package, rated for 20 mA test current, 6 Ω dynamic impedance at IZT, and operating across –65°C to +175°C. It serves as a precision voltage reference or shunt regulator in low-power analog circuits, power supply feedback paths, and overvoltage protection.
For engineers reviewing the 1N5236A/TR datasheet, 1N5236A/TR pinout, 1N5236A/TR application, or 1N5236A/TR equivalent, key selection criteria include Zener voltage stability under varying temperature, low dynamic impedance at regulation current, axial-leaded DO-35 mechanical compatibility, and RoHS-compliant "e3" availability with tape-and-reel packaging (TR suffix).
Technical Context
This discrete Zener diode operates in reverse breakdown mode with cathode band indicating polarity. Its regulation behavior is defined by a sharp knee at 20 mA test current (IZT), where Zener impedance (ZZT) is specified at 6 Ω - critical for maintaining stable reference voltage under load transients.
Thermal performance is characterized by 250 °C/W junction-to-lead resistance at 3/8″ lead length, enabling reliable operation up to +175°C ambient when mounted with adequate lead thermal relief. Voltage temperature coefficient is +0.058 %/°C, confirming positive drift above 25°C - essential for biasing accuracy in wide-temperature industrial sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 7.5 V ±10% at 20 mA - defines regulated output voltage with guaranteed tolerance for feedback loop design margin |
| Power Dissipation | 500 mW at 25°C - sets maximum continuous power handling before thermal derating begins |
| Zener Impedance | 6 Ω at IZT = 20 mA - determines AC ripple rejection and regulation stiffness in shunt reference applications |
| Reverse Current | 30 μA max at VR = 5.7 V - specifies leakage level below knee, impacting standby current in battery-powered circuits |
| Operating Temperature | –65°C to +175°C - supports deployment in automotive under-hood, aerospace, and industrial control environments |
| Forward Voltage | ≤1.5 V at 200 mA - ensures predictable forward conduction during fault conditions or ESD clamp operation |
| Temp. Coefficient | +0.058 %/°C - quantifies voltage drift per degree rise, enabling compensation in precision references |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed glass axial-leaded package with cathode indicated by a single black 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 lower-potential node; carries forward current or sinks reverse leakage |
| Cathode | Banded end | Connected to higher-potential node; establishes regulated Zener voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-registered DO-35 construction | Ensures mechanical and electrical interchangeability with legacy 1N52xx designs across manufacturers |
| ±10% voltage tolerance (A suffix) | Provides cost-optimized regulation accuracy suitable for non-critical voltage clamping and biasing |
| Low 6 Ω dynamic impedance at 20 mA | Minimizes output voltage variation under changing load currents in shunt regulator topologies |
| Radiation-hardened per MicroNote 050 | Validates suitability for space-grade and high-reliability systems without additional qualification |
| Nonsensitive to ESD (MIL-STD-750 Method 1020) | Eliminates need for external ESD protection during board assembly and handling |
Applications
| Overvoltage Protection Clamp | Low-Power Voltage Reference |
|---|---|
Use Scenario: Placed across IC power rails to limit transient spikes exceeding 7.5 V during ESD events or switching noise. IC Role / Device Role / Timing Role: Shunt clamping device that conducts excess current to ground once rail voltage exceeds VZ. Use Value: Prevents latch-up or damage to downstream logic by limiting peak voltage to 7.5 V ±10%, leveraging 500 mW power rating for short-duration surges. | Use Scenario: Provides stable 7.5 V reference for ADC biasing or op-amp comparator thresholds in sensor signal conditioning. IC Role / Device Role / Timing Role: Passive voltage reference source with minimal temperature-induced drift (+0.058 %/°C). Use Value: Enables <1% full-scale error in 12-bit measurements over –40°C to +85°C, using only passive components and no active regulation. |
| Power Supply Feedback Divider | Industrial Sensor Biasing |
Use Scenario: Integrated into optocoupler feedback path of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Zener element setting reference point for TL431 or similar error amplifier input. Use Value: Maintains ±5% output regulation across line/load variations due to stable 7.5 V reference and low ZZT (6 Ω) minimizing divider loading effects. | Use Scenario: Supplies precise bias voltage to RTD or thermistor bridge circuits in factory automation temperature monitors. IC Role / Device Role / Timing Role: Fixed-voltage excitation source for resistive sensing elements requiring stable excitation. Use Value: Reduces measurement uncertainty by limiting excitation voltage drift to <0.5% over 0–70°C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A | Same 5.1 V nominal voltage, but 1 W power rating and DO-41 package - larger footprint and higher thermal mass | Preferred in higher-power shunt regulators where >500 mW dissipation is expected | Select 1N4733A only if PCB layout allows DO-41 spacing and thermal management supports 1 W operation |
| BZX55C7V5 | 7.5 V, ±5% tolerance (tighter than 1N5236A/TR's ±10%), DO-35 package, but 500 mW rating and different Zener impedance curve | Better suited for precision references where tighter initial tolerance reduces calibration overhead | Choose BZX55C7V5 when ±5% initial accuracy is required and dynamic impedance at 20 mA is verified compatible |
Compared with 1N5236A/TR, 1N4733A offers higher power handling but requires board rework for DO-41 mounting, while BZX55C7V5 improves voltage accuracy at the cost of less documented radiation hardness and narrower military screening options.
Availability
1N5236A/TR is available at Aetrix Electronics and suitable for overvoltage protection, low-power voltage reference, and power supply feedback applications requiring stable component supply, long-term obsolescence mitigation, and consistent DO-35 axial-leaded form factor.
Supply support for 1N5236A/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 discrete and analog components.
The 1N52xx series was designed for ruggedized voltage regulation in military, avionics, and industrial systems where extended temperature operation, ESD immunity, and JEDEC-standard mechanical interchangeability are mandatory.
FAQ
What is the Zener voltage tolerance for 1N5236A/TR?
The "A" suffix in 1N5236A/TR specifies a nominal Zener voltage of 7.5 V with a tolerance of ±10% at 20 mA test current, as confirmed in the Electrical Characteristics table on page 1 of the Microsemi datasheet. This tolerance applies across the full operating temperature range and is guaranteed per JEDEC standard for A-suffix devices.
Does 1N5236A/TR support RoHS compliance?
Yes, 1N5236A/TR is RoHS compliant when ordered with the "e3" suffix (e.g., 1N5236Ae3/TR). The base part number without "e3" uses traditional tin-lead plating; the e3 variant substitutes annealed matte-tin per MIL-STD-750 Method 2026 and meets EU RoHS Directive 2011/65/EU requirements.
What is the maximum reverse leakage current for 1N5236A/TR?
The maximum reverse leakage current (IR) for 1N5236A/TR is 30 μA at VR = 5.7 V, as specified in the Electrical Characteristics table. This value is measured after 20 seconds of thermal stabilization with 3/8″ lead length, and it defines the upper bound of off-state current in clamping or reference applications.
Can 1N5236A/TR be used in high-temperature environments?
Yes, 1N5236A/TR is rated for continuous operation from –65°C to +175°C, with thermal resistance of 250 °C/W junction-to-lead at 3/8″ lead length. Its hermetically sealed DO-35 glass package and radiation-hardened construction make it suitable for under-hood automotive, downhole oil/gas, and aerospace applications.
Is tape-and-reel packaging available for 1N5236A/TR?
Yes, the "TR" suffix in 1N5236A/TR explicitly denotes EIA-296 standard tape-and-reel packaging. This configuration supports automated SMT placement when used with axial-leaded carrier tape feeders and is validated for solder reflow profiles up to 260°C for 10 seconds per MIL-STD-750.
1N5236A/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):
- 7.5 V
- Tolerance:
- ±10%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 5.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
1N5236A/TR FAQ
1.How can I place an order for 1N5236A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5236A/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 1N5236A/TR reliable?
The price and inventory of 1N5236A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5236A/TR is usually 5 days.
3.What payment methods are accepted for 1N5236A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5236A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5236A/TR?
1N5236A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5236A/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 1N5236A/TR?
For technical support, including 1N5236A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5236A/TR requirements.
6.How does Aetrix verify that 1N5236A/TR is sourced from the original manufacturer or authorized distributors?
All 1N5236A/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 1N5236A/TR meets industry standards.
7.What is the process for return or replacement of 1N5236A/TR?
All 1N5236A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5236A/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 1N5236A/TR part is unused and in its original packaging.
Return procedure for 1N5236A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5236A/TR 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…
