My Inquiry
My Account
onsemi 1N5232CRL
- Part No.:
- 1N5232CRL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
1N5232CRL.pdf
- Description:
- RECTIFIER DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N5232CRL from ON Semiconductor (formerly Motorola) is a 500 mW, ±2% tolerance, 5.6 V zener voltage regulator diode in DO-204AH (DO-35) glass package. It operates as a precision shunt voltage reference in low-power linear regulators and overvoltage protection circuits, with 20 mA test current, 11 Ω dynamic impedance at IZT, and +0.038 %/°C temperature coefficient. It is used in power supply feedback loops and analog sensor biasing where stable 5.6 V reference is required.
For engineers reviewing the 1N5232CRL datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal derating behavior, cathode-band polarity marking, DO-35 mechanical dimensions, and direct alternatives for voltage reference design validation and BOM optimization.
Technical Context
This device functions exclusively in reverse-bias zener breakdown mode, delivering regulated voltage across its terminals when reverse current exceeds the knee threshold. Its double-slug, hermetically sealed glass construction ensures stable thermal resistance (θJL ≈ 30–40 °C/W) and long-term parameter stability under ambient temperatures from –65 °C to +200 °C.
The 1N5232CRL exhibits a positive temperature coefficient (+0.038 %/°C), meaning its zener voltage increases with junction temperature - a key consideration in high-temperature PCB layouts and thermally coupled feedback networks. Its 11 Ω zener impedance at 20 mA enables tight regulation under moderate load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.6 V ±2% at IZT = 20 mA - defines nominal regulation point with tighter tolerance than standard 'B' suffix variants. |
| Power Dissipation | 500 mW at TL ≤ 75 °C - sets maximum continuous DC power before thermal derating begins. |
| Zener Impedance ZZT | 11 Ω at IZT = 20 mA - determines output voltage deviation under load current changes (ΔV = IΔ × ZZT). |
| Reverse Leakage IR | 5 µA max at VR = 3 V - specifies minimum off-state current in pre-breakdown region, critical for low-power standby circuits. |
| Temperature Coefficient | +0.038 %/°C - quantifies VZ drift per degree rise; enables accurate compensation in temperature-sensitive references. |
| Forward Voltage VF | 1.1 V max at IF = 200 mA - defines conduction threshold in forward bias, relevant for polarity protection or clamp configurations. |
Pinout & Package
Package: DO-204AH (DO-35), axial-leaded, hermetically sealed glass case with double-slug construction. Cathode identified by single color band; anode is unmarked lead. Overall length 38.1 mm, body diameter 1.52 mm, lead diameter 0.46 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node in shunt regulator configuration | Connected to system ground or lower-potential rail; reverse current flows from cathode to anode during regulation. |
| Cathode | Regulated output node | Marked with color band; held at precise 5.6 V above anode when reverse-biased above breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| ±2% zener voltage tolerance | Enables tighter output regulation without post-production trimming in 5.6 V reference designs. |
| Hermetically sealed glass package | Prevents moisture ingress and parameter drift over time, supporting >10-year reliability in industrial environments. |
| Double-slug metallurgical construction | Improves thermal coupling between die and leads, reducing transient thermal resistance during pulsed operation. |
| Low 11 Ω dynamic impedance | Minimizes output voltage variation under ±5 mA load current shifts - suitable for op-amp reference buffering. |
| +0.038 %/°C tempco | Allows predictable, linear VZ increase with temperature - usable in compensated reference topologies. |
Applications
| Power Supply Feedback Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing output voltage of a discrete transistor-based linear regulator using resistor divider feedback. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 5.6 V setpoint to error amplifier input. Use Value: Enables ±1% output regulation accuracy over line/load/temperature with no external trim components. |
Use Scenario: Protecting microcontroller GPIO pins from ESD-induced voltage spikes on 5 V I/O lines. IC Role / Device Role / Timing Role: Fast-acting clamping diode diverting transient energy to ground before IC damage occurs. Use Value: Limits peak voltage to ≤6.2 V (VZ + ΔVdynamic) during 100 ns–1 µs transients, preserving signal integrity. |
| Sensor Biasing Reference | Current Source Setpoint |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in industrial process monitors. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source establishing fixed bias across RTD element. Use Value: Reduces measurement error from supply ripple and thermal drift, enabling <0.1 °C temperature resolution. |
Use Scenario: Setting reference voltage for constant-current LED driver using LM317 configured as current source. IC Role / Device Role / Timing Role: Precision voltage reference determining current magnitude via sense resistor (I = VZ/Rsense). Use Value: Achieves ±2% current accuracy across 0–70 °C ambient, independent of input voltage fluctuations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5232B | Same 5.6 V nominal VZ, but ±5% tolerance and identical 11 Ω ZZT. | Acceptable where looser regulation tolerance is permitted; lower cost in high-volume consumer designs. | Select 1N5232B only if ±5% output variation is acceptable in final system specification. |
| BZX55-C5V6 | 5.6 V ±5%, 500 mW, DO-35 package, but higher ZZT (20 Ω typical) and different tempco (+0.05 %/°C). | Less stable under dynamic loads; requires larger bypass capacitance to maintain regulation during fast transients. | Choose BZX55-C5V6 only if legacy compatibility or multi-source procurement mandates alternate vendor part numbers. |
Compared with 1N5232B and BZX55-C5V6, the 1N5232CRL offers superior initial accuracy (±2% vs. ±5%) and lower dynamic impedance, making it preferred for precision analog circuits where reference stability directly impacts measurement fidelity or control loop performance.
Availability
1N5232CRL is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, sensor biasing, and current source setpoint applications requiring stable component supply and long-term parametric consistency.
Supply support for 1N5232CRL 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
ON Semiconductor is a global semiconductor supplier specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and cloud infrastructure markets.
The 1N52xx series was designed as a general-purpose, high-reliability zener reference family targeting cost-sensitive yet thermally demanding applications where hermetic sealing and stable tempco are essential.
FAQ
What is the zener voltage tolerance of the 1N5232CRL?
The 1N5232CRL has a zener voltage tolerance of ±2% at 20 mA test current, as indicated by the 'C' suffix per JEDEC standards. This tighter tolerance compared to the ±5% 'B' variant (e.g., 1N5232B) allows more precise voltage regulation without calibration. The 1N5232CRL maintains this specification across its rated operating temperature range of –65 °C to +200 °C.
How does the 1N5232CRL behave under elevated temperature conditions?
The 1N5232CRL exhibits a positive temperature coefficient of +0.038 %/°C, meaning its zener voltage increases linearly with junction temperature. At 125 °C, VZ rises by approximately 3.8 mV/°C × 100 °C = 380 mV above its 25 °C value - resulting in ~5.98 V. This behavior is fully characterized and documented in Motorola's Application Note on zener voltage temperature dependence.
What is the maximum reverse leakage current for the 1N5232CRL?
The 1N5232CRL specifies a maximum reverse leakage current (IR) of 5 µA at VR = 3 V and TA = 25 °C. This low leakage supports ultra-low-power applications such as battery-backed sensor nodes, where standby current must remain below 10 µA. Leakage remains below 50 µA up to 125 °C per typical characterization curves.
Can the 1N5232CRL be used in forward-bias applications?
Yes - the 1N5232CRL has a forward voltage (VF) of ≤1.1 V at IF = 200 mA, making it suitable for polarity protection or low-drop rectification in low-current paths. However, its primary design intent and characterization are for reverse-bias zener regulation; forward conduction capability is secondary and not optimized for high-efficiency rectification.
What packaging options are available for the 1N5232CRL?
The 1N5232CRL is supplied in tape-and-reel format (5,000 units per reel) with 26 mm tape spacing, denoted by the 'RL' suffix. It uses the DO-204AH (DO-35) axial glass package with cathode band marking. No radial or bulk packaging variants exist for the 'CRL' orderable part number - alternative suffixes like 'RA1' or 'TA' apply only to 'B'-suffix variants.
1N5232CRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
1N5232CRL FAQ
1.How can I place an order for 1N5232CRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5232CRL 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 1N5232CRL reliable?
The price and inventory of 1N5232CRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5232CRL is usually 5 days.
3.What payment methods are accepted for 1N5232CRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5232CRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5232CRL?
1N5232CRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5232CRL 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 1N5232CRL?
For technical support, including 1N5232CRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5232CRL requirements.
6.How does Aetrix verify that 1N5232CRL is sourced from the original manufacturer or authorized distributors?
All 1N5232CRL 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 1N5232CRL meets industry standards.
7.What is the process for return or replacement of 1N5232CRL?
All 1N5232CRL units undergo pre-shipment inspection (PSI). If there is an issue with 1N5232CRL, 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 1N5232CRL part is unused and in its original packaging.
Return procedure for 1N5232CRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5232CRL 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
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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…
