Renesas RD13S(0)-T2-A

Overview

RD13S(0)-T2-A from Renesas Electronics is a 200 mW, 2-pin Super Mini Mold zener diode with a nominal zener voltage of 13.33 V (B3 class), dynamic impedance of 35 Ω at 5 mA, and reverse current ≤2 μA at 10 V. It operates within –55°C to +150°C storage range and is rated for 85 W non-repetitive surge power at 10 μs pulse width. This device serves as a precision voltage reference in low-power regulator and overvoltage protection circuits.

For engineers reviewing the RD13S(0)-T2-A datasheet, RD13S(0)-T2-A pinout, RD13S(0)-T2-A application, or RD13S(0)-T2-A equivalent, key selection criteria include zener voltage tolerance (±4.2% for B3 class), thermal impedance (625 °C/W on standard PCB), and compliance with Standard-grade reliability for industrial and consumer electronics.

Technical Context

The RD13S(0)-T2-A belongs to the RD2.0S–RD150S series of silicon planar zener diodes fabricated using diffusion process technology. Its sharp breakdown characteristic enables stable regulation under low-current conditions (IZ = 5 mA), and its E24-standardized VZ ensures compatibility with common design margins.

Thermal performance is defined by transient thermal impedance (625 °C/W at t = 1 s on 30 mm × 30 mm × 1.6 mm glass epoxy PCB) and maximum junction temperature of 150°C. The device exhibits a positive zener voltage temperature coefficient (~0.07 %/°C at ~13 V), confirmed in Fig.10 of D11444EJ6V0DS.

Key Specifications

Pinout & Package

RD13S(0)-T2-A uses a 2-pin Super Mini Mold package (SMD) with cathode indicated by marking band. Dimensions: 2.5 ±0.15 mm length, 1.7 ±0.1 mm width, 0.3 ±0.05 mm thickness. Cathode terminal is electrically connected to the marked side.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar zener diode applications.

Compared with MMBZ5242BS and SZ1SMA5928E-TP, RD13S(0)-T2-A delivers tighter zener voltage control at low bias current (5 mA), optimized thermal impedance for compact layouts, and guaranteed 200 mW dissipation in a 2.5 mm × 1.7 mm footprint-making it the preferred choice for precision, space-limited industrial and consumer voltage reference designs.

Availability

RD13S(0)-T2-A is available at Aetrix Electronics and suitable for industrial power monitoring, USB-C port protection, audio equipment biasing, and IoT sensor reference applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for RD13S(0)-T2-A 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

Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and enterprise systems.

The RD2.0S–RD150S series was designed specifically for cost-sensitive, high-volume voltage reference and surge protection applications in Standard-grade electronics-emphasizing manufacturability, E24 compatibility, and consistent low-current regulation.

FAQ

What is the exact zener voltage range for RD13S(0)-T2-A?

The RD13S(0)-T2-A has a zener voltage range of 13.33 V to 14.00 V at IZ = 5 mA, corresponding to B3 class per D11444EJ6V0DS. This is measured under pulsed 40 ms conditions and reflects the tightest tolerance bin in the RD13S family. The value is not adjustable and applies strictly to the RD13S(0)-T2-A variant.

Does RD13S(0)-T2-A support lead-free reflow soldering?

Yes, RD13S(0)-T2-A is qualified for lead-free reflow soldering per J-STD-020. Its Super Mini Mold package withstands peak temperatures up to 260°C for 10 seconds, matching standard Pb-free process profiles. No special prebake or moisture sensitivity handling is required per the datasheet.

How does the dynamic impedance of RD13S(0)-T2-A affect regulation accuracy?

The RD13S(0)-T2-A has a dynamic impedance of 35 Ω at IZ = 5 mA. This means a ±1 mA change in bias current causes approximately ±35 mV output shift-directly impacting regulation accuracy in low-current applications. For high-precision use, maintain stable bias current and verify loop stability with downstream loads.

Can RD13S(0)-T2-A replace RD13S-B3 in existing designs?

Yes, RD13S(0)-T2-A is the full orderable designation for the RD13S-B3 variant. The "(0)-T2-A" suffix denotes tape-and-reel packaging (T2) and standard grade (A), with identical electrical specs and package dimensions. No redesign or validation is needed when migrating from RD13S-B3 to RD13S(0)-T2-A.

What is the maximum allowable reverse voltage before breakdown for RD13S(0)-T2-A?

The RD13S(0)-T2-A begins controlled breakdown at minimum 13.33 V and fully regulates up to 14.00 V at IZ = 5 mA. Below 13.33 V, reverse current remains ≤2 μA at 10 V per datasheet limits. Applying >14.00 V without current limiting risks thermal runaway; always use a series resistor sized for worst-case power dissipation.