FH3740005Z Equivalent & Substitute Parts

Part Overview

The FH3740005Z is a 37.4 MHz crystal oscillator manufactured by Diodes Incorporated, part of the SaRonix-eCera™ FH series. This surface mount crystal is designed for applications requiring precise frequency generation with fundamental mode operation. The component is actively produced and widely used in consumer electronics, telecommunications, and industrial equipment where stable 37.4 MHz frequency reference is required. Substitute parts are identified to provide design flexibility, inventory alternatives, and continuity of supply across compatible product lines.

Substiute Parts

FH3740005Z

Diodes IncorporatedIn Stock: 953FH3740005Z Datasheet

Current PartRFQ

FW3740001Z

Diodes IncorporatedIn Stock: 2848FW3740001Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FH3740005Z is based on strict equivalence of electrical and mechanical parameters. The substitute part FW3740001Z qualifies as a direct equivalent because it maintains identical specifications across all critical parameters: 37.4 MHz frequency, ±10ppm stability, 18pF load capacitance, 60 Ohms ESR, fundamental operating mode, and -30°C to 85°C temperature range. Both parts are manufactured by Diodes Incorporated, share the same 4-SMD No Lead package classification, and comply with identical regulatory standards (ROHS3, REACH Unaffected, EAR99). The primary difference is dimensional: the FW3740001Z features a smaller footprint (2.00mm × 1.60mm vs. 2.50mm × 2.00mm) and reduced height (0.55mm vs. 0.70mm), making it suitable for space-constrained applications while maintaining full electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both FH3740005Z and FW3740001Z are active products from Diodes Incorporated with full ROHS3 compliance and REACH unaffected status, ensuring regulatory compliance for current and future applications. Selection between these parts should be based on PCB layout constraints and available board space. The FW3740001Z is the manufacturer-recommended substitute and offers a compact footprint advantage with identical electrical performance. For designs with space limitations or high-density layouts, the FW3740001Z provides superior integration. For applications where existing PCB layouts accommodate the larger FH3740005Z dimensions, either part delivers equivalent functionality. Both components maintain MSL 1 rating, eliminating moisture sensitivity concerns during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can FW3740001Z be used as a direct replacement for FH3740005Z in existing designs?

A: Yes, FW3740001Z is electrically equivalent to FH3740005Z. Both parts deliver identical frequency (37.4 MHz), stability (±10ppm), load capacitance (18pF), and ESR (60 Ohms). The primary consideration is PCB footprint compatibility. FW3740001Z has smaller dimensions (2.00mm × 1.60mm vs. 2.50mm × 2.00mm), so existing pad layouts designed for FH3740005Z may require adjustment.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching frequency (37.4 MHz), frequency stability (±10ppm), load capacitance (18pF), ESR (60 Ohms), operating mode (Fundamental), and temperature range (-30°C to 85°C). Both parts meet these criteria identically.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both FH3740005Z and FW3740001Z carry identical certifications: ROHS3 Compliant, REACH Unaffected, and EAR99 classification. Both maintain MSL 1 rating with unlimited moisture sensitivity protection.

Q: What is the primary advantage of FW3740001Z over FH3740005Z?

A: FW3740001Z provides a more compact form factor with reduced height (0.55mm vs. 0.70mm) and smaller footprint area, enabling integration into space-constrained applications without electrical performance compromise.

Q: Do these parts require different circuit design considerations?

A: No. Both parts operate identically in circuit design. Load capacitance, ESR, and frequency specifications are matched, so circuit design, oscillator tank design, and load matching remain unchanged between parts.