Vishay Semiconductor Opto Division TEMT1030

Overview

TEMT1030 from Vishay Semiconductors is a silicon NPN phototransistor in a surface-mount yoke package with daylight-blocking filter, 7 mA collector light current (Ica) at 1 mW/cm² irradiance, ±15° angle of half sensitivity, and peak spectral response at 880 nm. It is used in IR-based photo interrupters and encoder detection where ambient-light rejection and fast 2.0 μs turn-on time are required.

For engineers reviewing the TEMT1030 datasheet, TEMT1030 pinout, TEMT1030 application, or TEMT1030 equivalent, this page delivers verified package dimensions (7.9 × 5 × 2.7 mm), absolute maximum ratings (V_ECO = 5 V, I_C = 50 mA), spectral bandwidth (730–1000 nm), thermal resistance (R_thJA = 400 K/W), and reflow compatibility per J-STD-020 MSL 3.

Technical Context

The TEMT1030 operates as a light-controlled NPN transistor with emitter-collector voltage rating of 5 V and collector dark current ≤200 nA at V_CE = 20 V. Its daylight-blocking filter ensures high signal-to-noise ratio when paired with 870–950 nm IR emitters like TSML1000 series.

It features fast switching (t_on = 2.0 μs, t_off = 2.3 μs at I_C = 5 mA, R_L = 100 Ω) and low capacitance (C_CEO = 3 pF typical at V_CE = 5 V, f = 1 MHz), enabling reliable performance in high-speed opto-isolated feedback and position-sensing circuits.

Key Specifications

Pinout & Package

TEMT1030 uses a 3-terminal yoke-style surface-mount package (Drawing-No.: 6.544-5329.02-4, Issue: 4) with overall dimensions 7.9 × 5.0 × 2.7 mm. Terminals are arranged with Collector (C) and Emitter (E) on opposing sides of the molded body; no base connection is externally accessible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TEMT1030, TEMT1020 offers identical photometric performance in a gullwing package for higher-density SMT assembly, while TEMT1000 provides the same sensitivity in a reverse-gullwing variant-neither is pin-compatible, and all three require unique land patterns despite shared core functionality.

Availability

TEMT1030 is available at Aetrix Electronics and suitable for photo interrupters, rotary encoders, industrial counters, and IR proximity switches requiring stable component supply, RoHS-compliant packaging, and MSL 3 handling support.

Supply support for TEMT1030 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

Vishay Semiconductors is a global leader in discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors.

The TEMT1000 series-including TEMT1030-is designed for industrial and consumer IR detection applications demanding ambient-light immunity, fast response, and surface-mount mechanical robustness.

FAQ

What is the maximum collector-emitter voltage rating for TEMT1030?

The TEMT1030 has an absolute maximum emitter-collector voltage (V_ECO) of 5 V. This rating applies under reverse-biased conditions and must not be exceeded to avoid junction breakdown. The device is rated for 70 V V_CEO in forward-active mode, but its primary use case leverages the 5 V V_ECO limit for optical switch configurations. Always observe this 5 V limit in emitter-follower or reverse-connected topologies.

Does TEMT1030 have a base connection for external bias control?

No, TEMT1030 is a two-terminal phototransistor with only Collector and Emitter leads exposed. It lacks an accessible base terminal, operating solely on photogenerated base current. This simplifies circuit design by eliminating external bias networks but means gain and response cannot be adjusted via base voltage-the device relies entirely on incident irradiance and load resistor selection for output behavior.

What is the spectral response range of TEMT1030, and how does it match common IR emitters?

TEMT1030 exhibits a spectral bandwidth (λ_0.5) from 730 nm to 1000 nm, with peak sensitivity at 880 nm. This range aligns precisely with standard 850 nm and 940 nm GaAlAs IR emitters, including Vishay's TSML1000 series. The daylight-blocking filter suppresses visible light, ensuring high signal fidelity even in brightly lit industrial environments where ambient IR noise would otherwise degrade detection reliability.

Can TEMT1030 be used in reflow soldering processes, and what MSL level does it comply with?

Yes, TEMT1030 is qualified for lead-free reflow per J-STD-020 and carries Moisture Sensitivity Level (MSL) 3, with a floor life of 168 hours at ≤30 °C/60% RH. After tape opening, it must be assembled within one week or stored in a dry box with desiccant. Reflow peak temperature must not exceed 260 °C for ≤10 s, and preheat must follow the specified 1°C/s to 5°C/s ramp rate to prevent package damage or delamination.

How does the yoke package of TEMT1030 differ mechanically from TEMT1020 or TEMT1000?

The TEMT1030 uses a yoke-style surface-mount package (7.9 × 5.0 × 2.7 mm) with terminals extending laterally from opposite sides of the molded body-distinct from TEMT1020's gullwing leads (2.3 × 1.1 mm pitch) and TEMT1000's reverse gullwing form. The yoke design provides superior mechanical rigidity for photo interrupter assemblies, resists bending during insertion, and maintains fixed optical axis alignment without reliance on solder joint integrity.