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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Nexperia USA Inc. 1N4531,133

Name: 1N4531,133
Brand: Nexperia USA Inc.
SKU: 1N4531,133
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N4531,133

Manufacturer:: Nexperia USA Inc.

Category:: Single Diodes

Package:: DO-204AG, DO-34, Axial

Datasheet:: 1N4531,133.pdf

Description:: DIODE GEN PURP 75V 200MA DO34

Quantity:: RFQ Add To RFQ list

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Inventory:61,133

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Product details

Overview

1N4531,133 from Nexperia is a high-speed switching diode in a hermetically sealed SOD68 (DO-34) glass package, designed for fast signal routing and transient protection. It delivers 4 ns reverse recovery time, 75 V repetitive peak reverse voltage, 450 mA peak forward current, and 25 nA reverse leakage at 20 V - enabling use in reed relay protection and high-frequency logic interface circuits.

For engineers reviewing the 1N4531,133 datasheet, 1N4531,133 pinout, 1N4531,133 application, or 1N4531,133 equivalent, key selection criteria include verified trr ≤ 4 ns, VR(RM) = 75 V, IF(RM) = 450 mA, low Cd = 4 pF at 0 V, and DO-34 mechanical compatibility with legacy through-hole layouts.

Technical Context

This planar silicon diode operates as a unidirectional, low-capacitance switch optimized for sub-10 ns transitions. Its 4 ns trr is measured under standardized IF = 10 mA → IR = 60 mA, RL = 100 Ω, IR sampling at 1 mA - confirming suitability for >100 MHz digital edge control and clamp functions.

Thermal design relies on Rth j-a = 350 K/W (lead length 5 mm, no PCB pad), limiting continuous IF to 200 mA at 25 °C ambient. Junction temperature must stay ≤200 °C, with storage range spanning −65 °C to +200 °C - supporting industrial and automotive under-hood environments.

Key Specifications

Parameter	Value and Actual Design Meaning
trr	4 ns - enables clean switching in >100 MHz clock distribution and pulse shaping
V_R(RM)	75 V - supports protection in 24 V/48 V industrial control and telecom line interfaces
I_F(RM)	450 mA - handles peak currents in relay coil snubbing and logic-level clamping
C_d	4 pF at 0 V - minimizes signal distortion in high-speed data line termination
V_F	1000 mV at 10 mA - ensures low forward drop in low-power sensing and bias networks
I_R	25 nA at 20 V, 25 °C - guarantees minimal leakage in precision sample-and-hold or reference paths

Pinout & Package

Hermetically sealed leaded glass SOD68 (DO-34) package: axial leads, 3.04 mm max body diameter, 25.4 mm min lead length, 1.6 mm max body length. Glass-to-metal seal ensures long-term reliability in humid or thermally cycling environments.

Pin/Terminal	Circuit Role	Design Meaning
Anode (A)	Forward current entry point	Connected to higher-potential node during conduction; requires trace width ≥0.3 mm for 450 mA surge
Cathode (K)	Forward current exit / reverse blocking terminal	Marked by band on glass body; ties to ground or lower-potential rail for clamping and protection

Key Features

Feature	Design Value
Hermetic glass sealing	Prevents moisture ingress and parameter drift over 15+ year service life in industrial enclosures
Planar silicon construction	Ensures consistent trr and VF across production lots, critical for timing-critical clamp circuits
Low junction capacitance	4 pF enables use in 100 Mbps+ digital I/O protection without signal integrity degradation
High T_j rating	200 °C maximum junction temperature allows operation near heat-generating ICs or power stages

Applications

Reed Relay Protection

Digital Logic Clamping

Use Scenario: Suppressing inductive kickback from reed relay coils driven by microcontroller GPIOs.

IC Role / Device Role / Timing Role: Fast-recovery flyback diode placed across relay coil to limit voltage spike duration.

Use Value: 4 ns trr confines energy dissipation window, reducing EMI and preventing MCU reset events.

Use Scenario: Limiting input voltage excursions on 5 V TTL/CMOS logic inputs exposed to external signals.

IC Role / Device Role / Timing Role: Clamp diode shunting excess voltage to V_CC or GND before logic threshold violation.

Use Value: 4 pF capacitance avoids loading high-impedance signal sources, preserving rise/fall times.

High-Frequency Pulse Shaping

Low-Power Sensor Biasing

Use Scenario: Edge sharpening and amplitude limiting in pulse generator outputs feeding RF modulators.

IC Role / Device Role / Timing Role: Series-connected switching diode acting as fast gate for pulse train modulation.

Use Value: 75 V V_R(RM) and 450 mA I_F(RM) support 10–50 ns pulse trains up to 20 V amplitude.

Use Scenario: Providing stable forward bias to photodiodes or Hall sensors in battery-powered IoT nodes.

IC Role / Device Role / Timing Role: Low-leakage bias path maintaining sensor operating point with minimal quiescent current.

Use Value: 25 nA reverse leakage at 20 V ensures <1 µA total bias error in µA-range sensor circuits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed switching diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
1N4148W,115	trr = 4 ns (same), but V_R(RM) = 100 V and I_F(RM) = 300 mA; SOD-123 surface-mount package	Not pin-compatible; requires PCB redesign; better for automated assembly but lacks DO-34 axial robustness	Select when board space is constrained and reflow soldering is used; avoid if axial lead strength or manual repair is required
BAV99,215	trr = 4 ns (same), dual diode in SOT-23; V_R(RM) = 70 V, I_F(RM) = 215 mA per diode	Offers dual-channel integration but lower per-diode current rating and different footprint	Choose for space-constrained dual-clamp designs where 215 mA per channel suffices and SOT-23 is acceptable

Compared with 1N4531,133, the 1N4148W offers higher reverse voltage but reduced surge current and surface-mount only; the BAV99 provides dual functionality in smaller area but halves per-diode current capacity and changes mechanical mounting entirely.

Availability

1N4531,133 is available at Aetrix Electronics and suitable for reed relay protection, digital logic clamping, and high-frequency pulse shaping requiring stable component supply across industrial control, test equipment, and legacy system maintenance programs.

Supply support for 1N4531,133 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

Nexperia is a global leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on automotive, industrial, computing, and consumer markets.

The 1N4531,133 belongs to Nexperia's legacy high-speed diode product line, engineered specifically for reliable through-hole switching and protection in cost-sensitive, high-volume industrial systems.

FAQ

What is the maximum allowable junction temperature for 1N4531,133?

The absolute maximum junction temperature is 200 °C, as specified in the Limiting Values table. Operation above this threshold risks permanent parametric shift or catastrophic failure. Derating is required above 25 °C ambient per Fig.2, where continuous forward current drops linearly to zero at ~150 °C ambient.

Is 1N4531,133 suitable for use in automotive under-hood applications?

Yes - its −65 °C to +200 °C storage temperature range, hermetic glass package, and 200 °C max junction temperature meet requirements for non-safety-critical under-hood modules. However, it is not AEC-Q101 qualified; for certified automotive use, consult Nexperia's AEC-Q101 diode portfolio.

How does the 1N4531,133 differ from the 1N4532 variant?

The 1N4532 has lower capacitance (2 pF vs. 4 pF) and higher reverse leakage (100 nA at 50 V vs. 25 nA at 20 V), reflecting optimization for higher-voltage, lower-capacitance applications. Both share identical trr = 4 ns and V_R(RM) = 75 V, but 1N4532 is preferred where signal integrity at >500 MHz dominates over leakage sensitivity.

Can 1N4531,133 be substituted with modern SMD equivalents without circuit redesign?

No - its DO-34 axial package is mechanically incompatible with SMD footprints like SOD-123 or SOT-23. Substitution requires PCB layout change, thermal relief adjustment, and verification of lead-induced inductance effects on trr performance in high-speed paths.

1N4531,133 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: DO-204AG, DO-34, Axial

Packaging:: Cut Tape (CT)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 75 V

Current - Average Rectified (Io):: 200mA

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 10 mA

Speed:: Small Signal =< 200mA (Io), Any Speed

Reverse Recovery Time (trr):: 4 ns

Current - Reverse Leakage @ Vr:: 25 nA @ 20 V

Capacitance @ Vr, F:: 4pF @ 0V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-34

Operating Temperature - Junction:: 200°C (Max)

1N4531,133 FAQ

1.How can I place an order for 1N4531,133 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4531,133 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 1N4531,133 reliable?

The price and inventory of 1N4531,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4531,133 is usually 5 days.

3.What payment methods are accepted for 1N4531,133?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4531,133 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4531,133?

1N4531,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4531,133 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 1N4531,133?

For technical support, including 1N4531,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4531,133 requirements.

6.How does Aetrix verify that 1N4531,133 is sourced from the original manufacturer or authorized distributors?

All 1N4531,133 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 1N4531,133 meets industry standards.

7.What is the process for return or replacement of 1N4531,133?

All 1N4531,133 units undergo pre-shipment inspection (PSI). If there is an issue with 1N4531,133, 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 1N4531,133 part is unused and in its original packaging.

Return procedure for 1N4531,133:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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